[Kernel-packages] [Bug 1729637] Re: Samba mount/umount in docker container triggers kernel Oops
I could not reproduce the bug with 4.4.0-102-generic or
4.10.0-41-generic
** Tags removed: verification-needed-xenial verification-needed-zesty
** Tags added: verification-done-xenial verification-done-zesty
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1729637
Title:
Samba mount/umount in docker container triggers kernel Oops
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Xenial:
Fix Committed
Status in linux source package in Zesty:
Fix Committed
Bug description:
== SRU Justification ==
This bug causes Samba mount and umounts in docker container to trigger
a kernel Oops. When running 2 docker containers, one as samba server and
another one as samba client that mounts and umounts a smb share a kernel
OOps can be triggered.
This bug happens in Xenial and Zesty, and is fixed by the following two
commits:
76da0704507b ("ipv6: only call ip6_route_dev_notify() once for
NETDEV_UNREGISTER")
12d94a804946 ("ipv6: fix NULL dereference in ip6_route_dev_notify()")
Both commits are clean cherry picks. 76da0704507b is in mainline as of v4.12.
Commit 12d94a804946 is in mainline as of v4.13-rc6.
== Fixes ==
commit 76da0704507bbc51875013f6557877ab308cfd0a
Author: WANG Cong
Date: Tue Jun 20 11:42:27 2017 -0700
ipv6: only call ip6_route_dev_notify() once for NETDEV_UNREGISTER
commit 12d94a804946af291e24b80fc53ec86264765781
Author: Eric Dumazet
Date: Tue Aug 15 04:09:51 2017 -0700
ipv6: fix NULL dereference in ip6_route_dev_notify()
== Regression Potential ==
Both commits are specific to ipv6 and fix a regression introduced into Xenial
and Zesty.
== Test Case ==
A test kernel was built with these patches and tested by the original bug
reporter.
The bug reporter states the test kernel resolved the bug.
The kernel message:
unregister_netdevice: waiting for lo to become free. Usage count = 1
shows up, some minutes later the oops and/or warnings happens.
The scripts to trigger the kernel Oops can be found at:
https://github.com/fho/docker-samba-loop
I was able to reproduce kernel Oopses on a clean Ubuntu 16.0.4 installation
with:
- linux-image-4.4.0-93-generic=4.4.0-93.116~14.04.1
- linux-image-4.10.0-32-generic=4.10.0-32.36~16.04.1
- linux-image-4.11.0-14-generic=4.11.0-14.20~16.04.1
In a different scenario were Ubuntu 16.04 servers were running
multiple docker containers with Nginx or small network applications in
parallel, I was also able to reproduce the kernel Oopses also on:
- linux-image-4.10.0-1004-gcp
- linux-image-4.12.10-041210-generic=4.12.10-041210.20170830
I haven't tried again to reproduce it with those kernels on a clean Ubuntu
installation and unfortunately didn't kept the kernel logs.
The "unregister_netdevice: waiting for lo to become free. Usage count
= 1" messages are related to
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407 which is
handled as separate issue.
According to https://github.com/moby/moby/issues/35068 the crash is fixed by:
https://patchwork.ozlabs.org/patch/801533/
https://patchwork.ozlabs.org/patch/778449/
---
AlsaDevices:
total 0
crw-rw 1 root audio 116, 1 Nov 3 09:51 seq
crw-rw 1 root audio 116, 33 Nov 3 09:51 timer
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
CRDA: N/A
DistroRelease: Ubuntu 16.04
IwConfig: Error: [Errno 2] No such file or directory
Lsusb: Error: command ['lsusb'] failed with exit code 1:
MachineType: Google Google Compute Engine
Package: linux (not installed)
PciMultimedia:
ProcEnviron:
TERM=rxvt-unicode-256color
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB:
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-37-generic
root=UUID=bf9a017a-931d-4191-84bc-b8434dbba527 ro scsi_mod.use_blk_mq=Y
console=ttyS0
ProcVersionSignature: Ubuntu 4.10.0-37.41~16.04.1-generic 4.10.17
RelatedPackageVersions:
linux-restricted-modules-4.10.0-37-generic N/A
linux-backports-modules-4.10.0-37-generic N/A
linux-firmware N/A
RfKill: Error: [Errno 2] No such file or directory
Tags: xenial uec-images xenial uec-images
Uname: Linux 4.10.0-37-generic x86_64
UnreportableReason: The report belongs to a package that is not installed.
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
_MarkForUpload: False
dmi.bios.date: 01/01/2011
dmi.bios.vendor: Google
dmi.bios.version: Google
dmi.board.asset.tag: A3DDBB61-646B-C60C-3999-1F1D7B7A334A
dmi.board.name: Google Compute Engine
dmi.board.ve
[Kernel-packages] [Bug 1711407] Re: unregister_netdevice: waiting for lo to become free
Hello Dan, thanks for the analysis! That the startup of containers is delayed is annoying. The much bigger issue is that it can reproducible cause a kernel Oops and crash a whole machine. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1711407 Title: unregister_netdevice: waiting for lo to become free Status in linux package in Ubuntu: Confirmed Status in linux source package in Trusty: New Status in linux source package in Xenial: New Status in linux source package in Zesty: New Status in linux source package in Artful: Confirmed Status in linux source package in Bionic: New Bug description: This is a "continuation" of bug 1403152, as that bug has been marked "fix released" and recent reports of failure may (or may not) be a new bug. Any further reports of the problem should please be reported here instead of that bug. -- [Impact] When shutting down and starting containers the container network namespace may experience a dst reference counting leak which results in this message repeated in the logs: unregister_netdevice: waiting for lo to become free. Usage count = 1 This can cause issues when trying to create net network namespace and thus block a user from creating new containers. [Test Case] See comment 16, reproducer provided at https://github.com/fho/docker- samba-loop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1711407] Re: unregister_netdevice: waiting for lo to become free
According to https://github.com/moby/moby/issues/35068 the crash is fixed by: https://patchwork.ozlabs.org/patch/801533/ https://patchwork.ozlabs.org/patch/778449/ ** Bug watch added: github.com/moby/moby/issues #35068 https://github.com/moby/moby/issues/35068 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1711407 Title: unregister_netdevice: waiting for lo to become free Status in linux package in Ubuntu: Confirmed Status in linux source package in Trusty: New Status in linux source package in Xenial: New Status in linux source package in Zesty: New Status in linux source package in Artful: Confirmed Status in linux source package in Bionic: New Bug description: This is a "continuation" of bug 1403152, as that bug has been marked "fix released" and recent reports of failure may (or may not) be a new bug. Any further reports of the problem should please be reported here instead of that bug. -- [Impact] When shutting down and starting containers the container network namespace may experience a dst reference counting leak which results in this message repeated in the logs: unregister_netdevice: waiting for lo to become free. Usage count = 1 This can cause issues when trying to create net network namespace and thus block a user from creating new containers. [Test Case] See comment 16, reproducer provided at https://github.com/fho/docker- samba-loop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1711407] Re: unregister_netdevice: waiting for lo to become free
Ok, seems that I'm than in the wrong ticket with my issues. :-) Should separate Ubuntu bug reports be created (if they don't exist already) regarding the kernel crashes? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1711407 Title: unregister_netdevice: waiting for lo to become free Status in linux package in Ubuntu: Confirmed Status in linux source package in Trusty: New Status in linux source package in Xenial: New Status in linux source package in Zesty: New Status in linux source package in Artful: Confirmed Status in linux source package in Bionic: New Bug description: This is a "continuation" of bug 1403152, as that bug has been marked "fix released" and recent reports of failure may (or may not) be a new bug. Any further reports of the problem should please be reported here instead of that bug. -- [Impact] When shutting down and starting containers the container network namespace may experience a dst reference counting leak which results in this message repeated in the logs: unregister_netdevice: waiting for lo to become free. Usage count = 1 This can cause issues when trying to create net network namespace and thus block a user from creating new containers. [Test Case] See comment 16, reproducer provided at https://github.com/fho/docker- samba-loop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1729637] [NEW] Samba mount/umount in docker container triggers kernel Oops
Public bug reported: When running 2 docker containers, one as samba server and another one as samba client that mounts and umounts a smb share a kernel OOps can be triggered on multiple kernels. The kernel message: unregister_netdevice: waiting for lo to become free. Usage count = 1 shows up, some minutes later the oops and/or warnings happens. The scripts to trigger the kernel Oops can be found at: https://github.com/fho/docker-samba-loop I was able to reproduce kernel Oopses on a clean Ubuntu 16.0.4 installation with: - linux-image-4.4.0-93-generic=4.4.0-93.116~14.04.1 - linux-image-4.10.0-32-generic=4.10.0-32.36~16.04.1 - linux-image-4.11.0-14-generic=4.11.0-14.20~16.04.1 In a different scenario were Ubuntu 16.04 servers were running multiple docker containers with Nginx or small network applications in parallel, I was also able to reproduce the kernel Oopses also on: - linux-image-4.10.0-1004-gcp - linux-image-4.12.10-041210-generic=4.12.10-041210.20170830 I haven't tried again to reproduce it with those kernels on a clean Ubuntu installation and unfortunately didn't kept the kernel logs. The "unregister_netdevice: waiting for lo to become free. Usage count = 1" messages are related to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407 which is handled as separate issue. According to https://github.com/moby/moby/issues/35068 the crash is fixed by: https://patchwork.ozlabs.org/patch/801533/ https://patchwork.ozlabs.org/patch/778449/ ** Affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1729637 Title: Samba mount/umount in docker container triggers kernel Oops Status in linux package in Ubuntu: New Bug description: When running 2 docker containers, one as samba server and another one as samba client that mounts and umounts a smb share a kernel OOps can be triggered on multiple kernels. The kernel message: unregister_netdevice: waiting for lo to become free. Usage count = 1 shows up, some minutes later the oops and/or warnings happens. The scripts to trigger the kernel Oops can be found at: https://github.com/fho/docker-samba-loop I was able to reproduce kernel Oopses on a clean Ubuntu 16.0.4 installation with: - linux-image-4.4.0-93-generic=4.4.0-93.116~14.04.1 - linux-image-4.10.0-32-generic=4.10.0-32.36~16.04.1 - linux-image-4.11.0-14-generic=4.11.0-14.20~16.04.1 In a different scenario were Ubuntu 16.04 servers were running multiple docker containers with Nginx or small network applications in parallel, I was also able to reproduce the kernel Oopses also on: - linux-image-4.10.0-1004-gcp - linux-image-4.12.10-041210-generic=4.12.10-041210.20170830 I haven't tried again to reproduce it with those kernels on a clean Ubuntu installation and unfortunately didn't kept the kernel logs. The "unregister_netdevice: waiting for lo to become free. Usage count = 1" messages are related to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407 which is handled as separate issue. According to https://github.com/moby/moby/issues/35068 the crash is fixed by: https://patchwork.ozlabs.org/patch/801533/ https://patchwork.ozlabs.org/patch/778449/ To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1729637/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1729637] Re: Samba mount/umount in docker container triggers kernel Oops
** Attachment added: "Kernel log from Oops with linux-image-4.10.0-32-generic=4.10.0-32.36~16.04.1" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1729637/+attachment/5002526/+files/kernoops-4.10.0-32.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1729637 Title: Samba mount/umount in docker container triggers kernel Oops Status in linux package in Ubuntu: New Bug description: When running 2 docker containers, one as samba server and another one as samba client that mounts and umounts a smb share a kernel OOps can be triggered on multiple kernels. The kernel message: unregister_netdevice: waiting for lo to become free. Usage count = 1 shows up, some minutes later the oops and/or warnings happens. The scripts to trigger the kernel Oops can be found at: https://github.com/fho/docker-samba-loop I was able to reproduce kernel Oopses on a clean Ubuntu 16.0.4 installation with: - linux-image-4.4.0-93-generic=4.4.0-93.116~14.04.1 - linux-image-4.10.0-32-generic=4.10.0-32.36~16.04.1 - linux-image-4.11.0-14-generic=4.11.0-14.20~16.04.1 In a different scenario were Ubuntu 16.04 servers were running multiple docker containers with Nginx or small network applications in parallel, I was also able to reproduce the kernel Oopses also on: - linux-image-4.10.0-1004-gcp - linux-image-4.12.10-041210-generic=4.12.10-041210.20170830 I haven't tried again to reproduce it with those kernels on a clean Ubuntu installation and unfortunately didn't kept the kernel logs. The "unregister_netdevice: waiting for lo to become free. Usage count = 1" messages are related to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407 which is handled as separate issue. According to https://github.com/moby/moby/issues/35068 the crash is fixed by: https://patchwork.ozlabs.org/patch/801533/ https://patchwork.ozlabs.org/patch/778449/ To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1729637/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1729637] Re: Samba mount/umount in docker container triggers kernel Oops
** Attachment added: "Kernel log from Oops with linux-image-4.4.0-93-generic=4.4.0-93.116~14.04.1" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1729637/+attachment/5002525/+files/kernoops-4.4.0-93.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1729637 Title: Samba mount/umount in docker container triggers kernel Oops Status in linux package in Ubuntu: New Bug description: When running 2 docker containers, one as samba server and another one as samba client that mounts and umounts a smb share a kernel OOps can be triggered on multiple kernels. The kernel message: unregister_netdevice: waiting for lo to become free. Usage count = 1 shows up, some minutes later the oops and/or warnings happens. The scripts to trigger the kernel Oops can be found at: https://github.com/fho/docker-samba-loop I was able to reproduce kernel Oopses on a clean Ubuntu 16.0.4 installation with: - linux-image-4.4.0-93-generic=4.4.0-93.116~14.04.1 - linux-image-4.10.0-32-generic=4.10.0-32.36~16.04.1 - linux-image-4.11.0-14-generic=4.11.0-14.20~16.04.1 In a different scenario were Ubuntu 16.04 servers were running multiple docker containers with Nginx or small network applications in parallel, I was also able to reproduce the kernel Oopses also on: - linux-image-4.10.0-1004-gcp - linux-image-4.12.10-041210-generic=4.12.10-041210.20170830 I haven't tried again to reproduce it with those kernels on a clean Ubuntu installation and unfortunately didn't kept the kernel logs. The "unregister_netdevice: waiting for lo to become free. Usage count = 1" messages are related to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407 which is handled as separate issue. According to https://github.com/moby/moby/issues/35068 the crash is fixed by: https://patchwork.ozlabs.org/patch/801533/ https://patchwork.ozlabs.org/patch/778449/ To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1729637/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1729637] Re: Samba mount/umount in docker container triggers kernel Oops
** Attachment added: "Kernel log from Oops with linux-image-4.11.0-14-generic=4.11.0-14.20~16.04.1" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1729637/+attachment/5002527/+files/kernoops-4.11.0-14.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1729637 Title: Samba mount/umount in docker container triggers kernel Oops Status in linux package in Ubuntu: New Bug description: When running 2 docker containers, one as samba server and another one as samba client that mounts and umounts a smb share a kernel OOps can be triggered on multiple kernels. The kernel message: unregister_netdevice: waiting for lo to become free. Usage count = 1 shows up, some minutes later the oops and/or warnings happens. The scripts to trigger the kernel Oops can be found at: https://github.com/fho/docker-samba-loop I was able to reproduce kernel Oopses on a clean Ubuntu 16.0.4 installation with: - linux-image-4.4.0-93-generic=4.4.0-93.116~14.04.1 - linux-image-4.10.0-32-generic=4.10.0-32.36~16.04.1 - linux-image-4.11.0-14-generic=4.11.0-14.20~16.04.1 In a different scenario were Ubuntu 16.04 servers were running multiple docker containers with Nginx or small network applications in parallel, I was also able to reproduce the kernel Oopses also on: - linux-image-4.10.0-1004-gcp - linux-image-4.12.10-041210-generic=4.12.10-041210.20170830 I haven't tried again to reproduce it with those kernels on a clean Ubuntu installation and unfortunately didn't kept the kernel logs. The "unregister_netdevice: waiting for lo to become free. Usage count = 1" messages are related to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407 which is handled as separate issue. According to https://github.com/moby/moby/issues/35068 the crash is fixed by: https://patchwork.ozlabs.org/patch/801533/ https://patchwork.ozlabs.org/patch/778449/ To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1729637/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1729637] JournalErrors.txt
apport information ** Attachment added: "JournalErrors.txt" https://bugs.launchpad.net/bugs/1729637/+attachment/5002897/+files/JournalErrors.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1729637 Title: Samba mount/umount in docker container triggers kernel Oops Status in linux package in Ubuntu: Confirmed Bug description: When running 2 docker containers, one as samba server and another one as samba client that mounts and umounts a smb share a kernel OOps can be triggered on multiple kernels. The kernel message: unregister_netdevice: waiting for lo to become free. Usage count = 1 shows up, some minutes later the oops and/or warnings happens. The scripts to trigger the kernel Oops can be found at: https://github.com/fho/docker-samba-loop I was able to reproduce kernel Oopses on a clean Ubuntu 16.0.4 installation with: - linux-image-4.4.0-93-generic=4.4.0-93.116~14.04.1 - linux-image-4.10.0-32-generic=4.10.0-32.36~16.04.1 - linux-image-4.11.0-14-generic=4.11.0-14.20~16.04.1 In a different scenario were Ubuntu 16.04 servers were running multiple docker containers with Nginx or small network applications in parallel, I was also able to reproduce the kernel Oopses also on: - linux-image-4.10.0-1004-gcp - linux-image-4.12.10-041210-generic=4.12.10-041210.20170830 I haven't tried again to reproduce it with those kernels on a clean Ubuntu installation and unfortunately didn't kept the kernel logs. The "unregister_netdevice: waiting for lo to become free. Usage count = 1" messages are related to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407 which is handled as separate issue. According to https://github.com/moby/moby/issues/35068 the crash is fixed by: https://patchwork.ozlabs.org/patch/801533/ https://patchwork.ozlabs.org/patch/778449/ --- AlsaDevices: total 0 crw-rw 1 root audio 116, 1 Nov 3 09:51 seq crw-rw 1 root audio 116, 33 Nov 3 09:51 timer AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.20.1-0ubuntu2.10 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A DistroRelease: Ubuntu 16.04 IwConfig: Error: [Errno 2] No such file or directory Lsusb: Error: command ['lsusb'] failed with exit code 1: MachineType: Google Google Compute Engine Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=rxvt-unicode-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-37-generic root=UUID=bf9a017a-931d-4191-84bc-b8434dbba527 ro scsi_mod.use_blk_mq=Y console=ttyS0 ProcVersionSignature: Ubuntu 4.10.0-37.41~16.04.1-generic 4.10.17 RelatedPackageVersions: linux-restricted-modules-4.10.0-37-generic N/A linux-backports-modules-4.10.0-37-generic N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory Tags: xenial uec-images xenial uec-images Uname: Linux 4.10.0-37-generic x86_64 UnreportableReason: The report belongs to a package that is not installed. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: False dmi.bios.date: 01/01/2011 dmi.bios.vendor: Google dmi.bios.version: Google dmi.board.asset.tag: A3DDBB61-646B-C60C-3999-1F1D7B7A334A dmi.board.name: Google Compute Engine dmi.board.vendor: Google dmi.chassis.type: 1 dmi.chassis.vendor: Google dmi.modalias: dmi:bvnGoogle:bvrGoogle:bd01/01/2011:svnGoogle:pnGoogleComputeEngine:pvr:rvnGoogle:rnGoogleComputeEngine:rvr:cvnGoogle:ct1:cvr: dmi.product.name: Google Compute Engine dmi.sys.vendor: Google To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1729637/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1729637] Lspci.txt
apport information ** Attachment added: "Lspci.txt" https://bugs.launchpad.net/bugs/1729637/+attachment/5002898/+files/Lspci.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1729637 Title: Samba mount/umount in docker container triggers kernel Oops Status in linux package in Ubuntu: Confirmed Bug description: When running 2 docker containers, one as samba server and another one as samba client that mounts and umounts a smb share a kernel OOps can be triggered on multiple kernels. The kernel message: unregister_netdevice: waiting for lo to become free. Usage count = 1 shows up, some minutes later the oops and/or warnings happens. The scripts to trigger the kernel Oops can be found at: https://github.com/fho/docker-samba-loop I was able to reproduce kernel Oopses on a clean Ubuntu 16.0.4 installation with: - linux-image-4.4.0-93-generic=4.4.0-93.116~14.04.1 - linux-image-4.10.0-32-generic=4.10.0-32.36~16.04.1 - linux-image-4.11.0-14-generic=4.11.0-14.20~16.04.1 In a different scenario were Ubuntu 16.04 servers were running multiple docker containers with Nginx or small network applications in parallel, I was also able to reproduce the kernel Oopses also on: - linux-image-4.10.0-1004-gcp - linux-image-4.12.10-041210-generic=4.12.10-041210.20170830 I haven't tried again to reproduce it with those kernels on a clean Ubuntu installation and unfortunately didn't kept the kernel logs. The "unregister_netdevice: waiting for lo to become free. Usage count = 1" messages are related to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407 which is handled as separate issue. According to https://github.com/moby/moby/issues/35068 the crash is fixed by: https://patchwork.ozlabs.org/patch/801533/ https://patchwork.ozlabs.org/patch/778449/ --- AlsaDevices: total 0 crw-rw 1 root audio 116, 1 Nov 3 09:51 seq crw-rw 1 root audio 116, 33 Nov 3 09:51 timer AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.20.1-0ubuntu2.10 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A DistroRelease: Ubuntu 16.04 IwConfig: Error: [Errno 2] No such file or directory Lsusb: Error: command ['lsusb'] failed with exit code 1: MachineType: Google Google Compute Engine Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=rxvt-unicode-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-37-generic root=UUID=bf9a017a-931d-4191-84bc-b8434dbba527 ro scsi_mod.use_blk_mq=Y console=ttyS0 ProcVersionSignature: Ubuntu 4.10.0-37.41~16.04.1-generic 4.10.17 RelatedPackageVersions: linux-restricted-modules-4.10.0-37-generic N/A linux-backports-modules-4.10.0-37-generic N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory Tags: xenial uec-images xenial uec-images Uname: Linux 4.10.0-37-generic x86_64 UnreportableReason: The report belongs to a package that is not installed. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: False dmi.bios.date: 01/01/2011 dmi.bios.vendor: Google dmi.bios.version: Google dmi.board.asset.tag: A3DDBB61-646B-C60C-3999-1F1D7B7A334A dmi.board.name: Google Compute Engine dmi.board.vendor: Google dmi.chassis.type: 1 dmi.chassis.vendor: Google dmi.modalias: dmi:bvnGoogle:bvrGoogle:bd01/01/2011:svnGoogle:pnGoogleComputeEngine:pvr:rvnGoogle:rnGoogleComputeEngine:rvr:cvnGoogle:ct1:cvr: dmi.product.name: Google Compute Engine dmi.sys.vendor: Google To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1729637/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1729637] WifiSyslog.txt
apport information ** Attachment added: "WifiSyslog.txt" https://bugs.launchpad.net/bugs/1729637/+attachment/5002903/+files/WifiSyslog.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1729637 Title: Samba mount/umount in docker container triggers kernel Oops Status in linux package in Ubuntu: Confirmed Bug description: When running 2 docker containers, one as samba server and another one as samba client that mounts and umounts a smb share a kernel OOps can be triggered on multiple kernels. The kernel message: unregister_netdevice: waiting for lo to become free. Usage count = 1 shows up, some minutes later the oops and/or warnings happens. The scripts to trigger the kernel Oops can be found at: https://github.com/fho/docker-samba-loop I was able to reproduce kernel Oopses on a clean Ubuntu 16.0.4 installation with: - linux-image-4.4.0-93-generic=4.4.0-93.116~14.04.1 - linux-image-4.10.0-32-generic=4.10.0-32.36~16.04.1 - linux-image-4.11.0-14-generic=4.11.0-14.20~16.04.1 In a different scenario were Ubuntu 16.04 servers were running multiple docker containers with Nginx or small network applications in parallel, I was also able to reproduce the kernel Oopses also on: - linux-image-4.10.0-1004-gcp - linux-image-4.12.10-041210-generic=4.12.10-041210.20170830 I haven't tried again to reproduce it with those kernels on a clean Ubuntu installation and unfortunately didn't kept the kernel logs. The "unregister_netdevice: waiting for lo to become free. Usage count = 1" messages are related to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407 which is handled as separate issue. According to https://github.com/moby/moby/issues/35068 the crash is fixed by: https://patchwork.ozlabs.org/patch/801533/ https://patchwork.ozlabs.org/patch/778449/ --- AlsaDevices: total 0 crw-rw 1 root audio 116, 1 Nov 3 09:51 seq crw-rw 1 root audio 116, 33 Nov 3 09:51 timer AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.20.1-0ubuntu2.10 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A DistroRelease: Ubuntu 16.04 IwConfig: Error: [Errno 2] No such file or directory Lsusb: Error: command ['lsusb'] failed with exit code 1: MachineType: Google Google Compute Engine Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=rxvt-unicode-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-37-generic root=UUID=bf9a017a-931d-4191-84bc-b8434dbba527 ro scsi_mod.use_blk_mq=Y console=ttyS0 ProcVersionSignature: Ubuntu 4.10.0-37.41~16.04.1-generic 4.10.17 RelatedPackageVersions: linux-restricted-modules-4.10.0-37-generic N/A linux-backports-modules-4.10.0-37-generic N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory Tags: xenial uec-images xenial uec-images Uname: Linux 4.10.0-37-generic x86_64 UnreportableReason: The report belongs to a package that is not installed. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: False dmi.bios.date: 01/01/2011 dmi.bios.vendor: Google dmi.bios.version: Google dmi.board.asset.tag: A3DDBB61-646B-C60C-3999-1F1D7B7A334A dmi.board.name: Google Compute Engine dmi.board.vendor: Google dmi.chassis.type: 1 dmi.chassis.vendor: Google dmi.modalias: dmi:bvnGoogle:bvrGoogle:bd01/01/2011:svnGoogle:pnGoogleComputeEngine:pvr:rvnGoogle:rnGoogleComputeEngine:rvr:cvnGoogle:ct1:cvr: dmi.product.name: Google Compute Engine dmi.sys.vendor: Google To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1729637/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1729637] Re: Samba mount/umount in docker container triggers kernel Oops
apport information ** Tags added: apport-collected uec-images xenial ** Description changed: When running 2 docker containers, one as samba server and another one as samba client that mounts and umounts a smb share a kernel OOps can be triggered on multiple kernels. The kernel message: unregister_netdevice: waiting for lo to become free. Usage count = 1 shows up, some minutes later the oops and/or warnings happens. The scripts to trigger the kernel Oops can be found at: https://github.com/fho/docker-samba-loop I was able to reproduce kernel Oopses on a clean Ubuntu 16.0.4 installation with: - linux-image-4.4.0-93-generic=4.4.0-93.116~14.04.1 - linux-image-4.10.0-32-generic=4.10.0-32.36~16.04.1 - linux-image-4.11.0-14-generic=4.11.0-14.20~16.04.1 In a different scenario were Ubuntu 16.04 servers were running multiple docker containers with Nginx or small network applications in parallel, I was also able to reproduce the kernel Oopses also on: - linux-image-4.10.0-1004-gcp - linux-image-4.12.10-041210-generic=4.12.10-041210.20170830 I haven't tried again to reproduce it with those kernels on a clean Ubuntu installation and unfortunately didn't kept the kernel logs. The "unregister_netdevice: waiting for lo to become free. Usage count = 1" messages are related to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407 which is handled as separate issue. According to https://github.com/moby/moby/issues/35068 the crash is fixed by: https://patchwork.ozlabs.org/patch/801533/ https://patchwork.ozlabs.org/patch/778449/ + --- + AlsaDevices: + total 0 + crw-rw 1 root audio 116, 1 Nov 3 09:51 seq + crw-rw 1 root audio 116, 33 Nov 3 09:51 timer + AplayDevices: Error: [Errno 2] No such file or directory + ApportVersion: 2.20.1-0ubuntu2.10 + Architecture: amd64 + ArecordDevices: Error: [Errno 2] No such file or directory + AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: + CRDA: N/A + DistroRelease: Ubuntu 16.04 + IwConfig: Error: [Errno 2] No such file or directory + Lsusb: Error: command ['lsusb'] failed with exit code 1: + MachineType: Google Google Compute Engine + Package: linux (not installed) + PciMultimedia: + + ProcEnviron: + TERM=rxvt-unicode-256color + PATH=(custom, no user) + LANG=en_US.UTF-8 + SHELL=/bin/bash + ProcFB: + + ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-37-generic root=UUID=bf9a017a-931d-4191-84bc-b8434dbba527 ro scsi_mod.use_blk_mq=Y console=ttyS0 + ProcVersionSignature: Ubuntu 4.10.0-37.41~16.04.1-generic 4.10.17 + RelatedPackageVersions: + linux-restricted-modules-4.10.0-37-generic N/A + linux-backports-modules-4.10.0-37-generic N/A + linux-firmware N/A + RfKill: Error: [Errno 2] No such file or directory + Tags: xenial uec-images xenial uec-images + Uname: Linux 4.10.0-37-generic x86_64 + UnreportableReason: The report belongs to a package that is not installed. + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: + + _MarkForUpload: False + dmi.bios.date: 01/01/2011 + dmi.bios.vendor: Google + dmi.bios.version: Google + dmi.board.asset.tag: A3DDBB61-646B-C60C-3999-1F1D7B7A334A + dmi.board.name: Google Compute Engine + dmi.board.vendor: Google + dmi.chassis.type: 1 + dmi.chassis.vendor: Google + dmi.modalias: dmi:bvnGoogle:bvrGoogle:bd01/01/2011:svnGoogle:pnGoogleComputeEngine:pvr:rvnGoogle:rnGoogleComputeEngine:rvr:cvnGoogle:ct1:cvr: + dmi.product.name: Google Compute Engine + dmi.sys.vendor: Google ** Attachment added: "CurrentDmesg.txt" https://bugs.launchpad.net/bugs/1729637/+attachment/5002896/+files/CurrentDmesg.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1729637 Title: Samba mount/umount in docker container triggers kernel Oops Status in linux package in Ubuntu: Confirmed Bug description: When running 2 docker containers, one as samba server and another one as samba client that mounts and umounts a smb share a kernel OOps can be triggered on multiple kernels. The kernel message: unregister_netdevice: waiting for lo to become free. Usage count = 1 shows up, some minutes later the oops and/or warnings happens. The scripts to trigger the kernel Oops can be found at: https://github.com/fho/docker-samba-loop I was able to reproduce kernel Oopses on a clean Ubuntu 16.0.4 installation with: - linux-image-4.4.0-93-generic=4.4.0-93.116~14.04.1 - linux-image-4.10.0-32-generic=4.10.0-32.36~16.04.1 - linux-image-4.11.0-14-generic=4.11.0-14.20~16.04.1 In a different scenario were Ubuntu 16.04 servers were running multiple docker containers with Nginx or small network applications in parallel, I was also able to reproduce the kernel Oopses also on: - linux-image-4.10.0-1004-gcp - linux
[Kernel-packages] [Bug 1729637] ProcInterrupts.txt
apport information ** Attachment added: "ProcInterrupts.txt" https://bugs.launchpad.net/bugs/1729637/+attachment/5002900/+files/ProcInterrupts.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1729637 Title: Samba mount/umount in docker container triggers kernel Oops Status in linux package in Ubuntu: Confirmed Bug description: When running 2 docker containers, one as samba server and another one as samba client that mounts and umounts a smb share a kernel OOps can be triggered on multiple kernels. The kernel message: unregister_netdevice: waiting for lo to become free. Usage count = 1 shows up, some minutes later the oops and/or warnings happens. The scripts to trigger the kernel Oops can be found at: https://github.com/fho/docker-samba-loop I was able to reproduce kernel Oopses on a clean Ubuntu 16.0.4 installation with: - linux-image-4.4.0-93-generic=4.4.0-93.116~14.04.1 - linux-image-4.10.0-32-generic=4.10.0-32.36~16.04.1 - linux-image-4.11.0-14-generic=4.11.0-14.20~16.04.1 In a different scenario were Ubuntu 16.04 servers were running multiple docker containers with Nginx or small network applications in parallel, I was also able to reproduce the kernel Oopses also on: - linux-image-4.10.0-1004-gcp - linux-image-4.12.10-041210-generic=4.12.10-041210.20170830 I haven't tried again to reproduce it with those kernels on a clean Ubuntu installation and unfortunately didn't kept the kernel logs. The "unregister_netdevice: waiting for lo to become free. Usage count = 1" messages are related to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407 which is handled as separate issue. According to https://github.com/moby/moby/issues/35068 the crash is fixed by: https://patchwork.ozlabs.org/patch/801533/ https://patchwork.ozlabs.org/patch/778449/ --- AlsaDevices: total 0 crw-rw 1 root audio 116, 1 Nov 3 09:51 seq crw-rw 1 root audio 116, 33 Nov 3 09:51 timer AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.20.1-0ubuntu2.10 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A DistroRelease: Ubuntu 16.04 IwConfig: Error: [Errno 2] No such file or directory Lsusb: Error: command ['lsusb'] failed with exit code 1: MachineType: Google Google Compute Engine Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=rxvt-unicode-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-37-generic root=UUID=bf9a017a-931d-4191-84bc-b8434dbba527 ro scsi_mod.use_blk_mq=Y console=ttyS0 ProcVersionSignature: Ubuntu 4.10.0-37.41~16.04.1-generic 4.10.17 RelatedPackageVersions: linux-restricted-modules-4.10.0-37-generic N/A linux-backports-modules-4.10.0-37-generic N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory Tags: xenial uec-images xenial uec-images Uname: Linux 4.10.0-37-generic x86_64 UnreportableReason: The report belongs to a package that is not installed. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: False dmi.bios.date: 01/01/2011 dmi.bios.vendor: Google dmi.bios.version: Google dmi.board.asset.tag: A3DDBB61-646B-C60C-3999-1F1D7B7A334A dmi.board.name: Google Compute Engine dmi.board.vendor: Google dmi.chassis.type: 1 dmi.chassis.vendor: Google dmi.modalias: dmi:bvnGoogle:bvrGoogle:bd01/01/2011:svnGoogle:pnGoogleComputeEngine:pvr:rvnGoogle:rnGoogleComputeEngine:rvr:cvnGoogle:ct1:cvr: dmi.product.name: Google Compute Engine dmi.sys.vendor: Google To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1729637/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1729637] ProcModules.txt
apport information ** Attachment added: "ProcModules.txt" https://bugs.launchpad.net/bugs/1729637/+attachment/5002901/+files/ProcModules.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1729637 Title: Samba mount/umount in docker container triggers kernel Oops Status in linux package in Ubuntu: Confirmed Bug description: When running 2 docker containers, one as samba server and another one as samba client that mounts and umounts a smb share a kernel OOps can be triggered on multiple kernels. The kernel message: unregister_netdevice: waiting for lo to become free. Usage count = 1 shows up, some minutes later the oops and/or warnings happens. The scripts to trigger the kernel Oops can be found at: https://github.com/fho/docker-samba-loop I was able to reproduce kernel Oopses on a clean Ubuntu 16.0.4 installation with: - linux-image-4.4.0-93-generic=4.4.0-93.116~14.04.1 - linux-image-4.10.0-32-generic=4.10.0-32.36~16.04.1 - linux-image-4.11.0-14-generic=4.11.0-14.20~16.04.1 In a different scenario were Ubuntu 16.04 servers were running multiple docker containers with Nginx or small network applications in parallel, I was also able to reproduce the kernel Oopses also on: - linux-image-4.10.0-1004-gcp - linux-image-4.12.10-041210-generic=4.12.10-041210.20170830 I haven't tried again to reproduce it with those kernels on a clean Ubuntu installation and unfortunately didn't kept the kernel logs. The "unregister_netdevice: waiting for lo to become free. Usage count = 1" messages are related to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407 which is handled as separate issue. According to https://github.com/moby/moby/issues/35068 the crash is fixed by: https://patchwork.ozlabs.org/patch/801533/ https://patchwork.ozlabs.org/patch/778449/ --- AlsaDevices: total 0 crw-rw 1 root audio 116, 1 Nov 3 09:51 seq crw-rw 1 root audio 116, 33 Nov 3 09:51 timer AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.20.1-0ubuntu2.10 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A DistroRelease: Ubuntu 16.04 IwConfig: Error: [Errno 2] No such file or directory Lsusb: Error: command ['lsusb'] failed with exit code 1: MachineType: Google Google Compute Engine Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=rxvt-unicode-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-37-generic root=UUID=bf9a017a-931d-4191-84bc-b8434dbba527 ro scsi_mod.use_blk_mq=Y console=ttyS0 ProcVersionSignature: Ubuntu 4.10.0-37.41~16.04.1-generic 4.10.17 RelatedPackageVersions: linux-restricted-modules-4.10.0-37-generic N/A linux-backports-modules-4.10.0-37-generic N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory Tags: xenial uec-images xenial uec-images Uname: Linux 4.10.0-37-generic x86_64 UnreportableReason: The report belongs to a package that is not installed. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: False dmi.bios.date: 01/01/2011 dmi.bios.vendor: Google dmi.bios.version: Google dmi.board.asset.tag: A3DDBB61-646B-C60C-3999-1F1D7B7A334A dmi.board.name: Google Compute Engine dmi.board.vendor: Google dmi.chassis.type: 1 dmi.chassis.vendor: Google dmi.modalias: dmi:bvnGoogle:bvrGoogle:bd01/01/2011:svnGoogle:pnGoogleComputeEngine:pvr:rvnGoogle:rnGoogleComputeEngine:rvr:cvnGoogle:ct1:cvr: dmi.product.name: Google Compute Engine dmi.sys.vendor: Google To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1729637/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1729637] Re: Samba mount/umount in docker container triggers kernel Oops
The collected apport informations are from a fresh start of the machine because the bugs causes the machine to crash. Attached are the logs of a kernel crash that happened by the described method. ** Attachment added: "Logs from kernel Oops on linux-image-4.10.0-37-generic=4.10.0-37.41~16.04.1" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1729637/+attachment/5002904/+files/kern.log ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1729637 Title: Samba mount/umount in docker container triggers kernel Oops Status in linux package in Ubuntu: Confirmed Bug description: When running 2 docker containers, one as samba server and another one as samba client that mounts and umounts a smb share a kernel OOps can be triggered on multiple kernels. The kernel message: unregister_netdevice: waiting for lo to become free. Usage count = 1 shows up, some minutes later the oops and/or warnings happens. The scripts to trigger the kernel Oops can be found at: https://github.com/fho/docker-samba-loop I was able to reproduce kernel Oopses on a clean Ubuntu 16.0.4 installation with: - linux-image-4.4.0-93-generic=4.4.0-93.116~14.04.1 - linux-image-4.10.0-32-generic=4.10.0-32.36~16.04.1 - linux-image-4.11.0-14-generic=4.11.0-14.20~16.04.1 In a different scenario were Ubuntu 16.04 servers were running multiple docker containers with Nginx or small network applications in parallel, I was also able to reproduce the kernel Oopses also on: - linux-image-4.10.0-1004-gcp - linux-image-4.12.10-041210-generic=4.12.10-041210.20170830 I haven't tried again to reproduce it with those kernels on a clean Ubuntu installation and unfortunately didn't kept the kernel logs. The "unregister_netdevice: waiting for lo to become free. Usage count = 1" messages are related to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407 which is handled as separate issue. According to https://github.com/moby/moby/issues/35068 the crash is fixed by: https://patchwork.ozlabs.org/patch/801533/ https://patchwork.ozlabs.org/patch/778449/ --- AlsaDevices: total 0 crw-rw 1 root audio 116, 1 Nov 3 09:51 seq crw-rw 1 root audio 116, 33 Nov 3 09:51 timer AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.20.1-0ubuntu2.10 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A DistroRelease: Ubuntu 16.04 IwConfig: Error: [Errno 2] No such file or directory Lsusb: Error: command ['lsusb'] failed with exit code 1: MachineType: Google Google Compute Engine Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=rxvt-unicode-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-37-generic root=UUID=bf9a017a-931d-4191-84bc-b8434dbba527 ro scsi_mod.use_blk_mq=Y console=ttyS0 ProcVersionSignature: Ubuntu 4.10.0-37.41~16.04.1-generic 4.10.17 RelatedPackageVersions: linux-restricted-modules-4.10.0-37-generic N/A linux-backports-modules-4.10.0-37-generic N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory Tags: xenial uec-images xenial uec-images Uname: Linux 4.10.0-37-generic x86_64 UnreportableReason: The report belongs to a package that is not installed. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: False dmi.bios.date: 01/01/2011 dmi.bios.vendor: Google dmi.bios.version: Google dmi.board.asset.tag: A3DDBB61-646B-C60C-3999-1F1D7B7A334A dmi.board.name: Google Compute Engine dmi.board.vendor: Google dmi.chassis.type: 1 dmi.chassis.vendor: Google dmi.modalias: dmi:bvnGoogle:bvrGoogle:bd01/01/2011:svnGoogle:pnGoogleComputeEngine:pvr:rvnGoogle:rnGoogleComputeEngine:rvr:cvnGoogle:ct1:cvr: dmi.product.name: Google Compute Engine dmi.sys.vendor: Google To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1729637/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1729637] ProcCpuinfoMinimal.txt
apport information ** Attachment added: "ProcCpuinfoMinimal.txt" https://bugs.launchpad.net/bugs/1729637/+attachment/5002899/+files/ProcCpuinfoMinimal.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1729637 Title: Samba mount/umount in docker container triggers kernel Oops Status in linux package in Ubuntu: Confirmed Bug description: When running 2 docker containers, one as samba server and another one as samba client that mounts and umounts a smb share a kernel OOps can be triggered on multiple kernels. The kernel message: unregister_netdevice: waiting for lo to become free. Usage count = 1 shows up, some minutes later the oops and/or warnings happens. The scripts to trigger the kernel Oops can be found at: https://github.com/fho/docker-samba-loop I was able to reproduce kernel Oopses on a clean Ubuntu 16.0.4 installation with: - linux-image-4.4.0-93-generic=4.4.0-93.116~14.04.1 - linux-image-4.10.0-32-generic=4.10.0-32.36~16.04.1 - linux-image-4.11.0-14-generic=4.11.0-14.20~16.04.1 In a different scenario were Ubuntu 16.04 servers were running multiple docker containers with Nginx or small network applications in parallel, I was also able to reproduce the kernel Oopses also on: - linux-image-4.10.0-1004-gcp - linux-image-4.12.10-041210-generic=4.12.10-041210.20170830 I haven't tried again to reproduce it with those kernels on a clean Ubuntu installation and unfortunately didn't kept the kernel logs. The "unregister_netdevice: waiting for lo to become free. Usage count = 1" messages are related to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407 which is handled as separate issue. According to https://github.com/moby/moby/issues/35068 the crash is fixed by: https://patchwork.ozlabs.org/patch/801533/ https://patchwork.ozlabs.org/patch/778449/ --- AlsaDevices: total 0 crw-rw 1 root audio 116, 1 Nov 3 09:51 seq crw-rw 1 root audio 116, 33 Nov 3 09:51 timer AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.20.1-0ubuntu2.10 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A DistroRelease: Ubuntu 16.04 IwConfig: Error: [Errno 2] No such file or directory Lsusb: Error: command ['lsusb'] failed with exit code 1: MachineType: Google Google Compute Engine Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=rxvt-unicode-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-37-generic root=UUID=bf9a017a-931d-4191-84bc-b8434dbba527 ro scsi_mod.use_blk_mq=Y console=ttyS0 ProcVersionSignature: Ubuntu 4.10.0-37.41~16.04.1-generic 4.10.17 RelatedPackageVersions: linux-restricted-modules-4.10.0-37-generic N/A linux-backports-modules-4.10.0-37-generic N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory Tags: xenial uec-images xenial uec-images Uname: Linux 4.10.0-37-generic x86_64 UnreportableReason: The report belongs to a package that is not installed. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: False dmi.bios.date: 01/01/2011 dmi.bios.vendor: Google dmi.bios.version: Google dmi.board.asset.tag: A3DDBB61-646B-C60C-3999-1F1D7B7A334A dmi.board.name: Google Compute Engine dmi.board.vendor: Google dmi.chassis.type: 1 dmi.chassis.vendor: Google dmi.modalias: dmi:bvnGoogle:bvrGoogle:bd01/01/2011:svnGoogle:pnGoogleComputeEngine:pvr:rvnGoogle:rnGoogleComputeEngine:rvr:cvnGoogle:ct1:cvr: dmi.product.name: Google Compute Engine dmi.sys.vendor: Google To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1729637/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1729637] UdevDb.txt
apport information ** Attachment added: "UdevDb.txt" https://bugs.launchpad.net/bugs/1729637/+attachment/5002902/+files/UdevDb.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1729637 Title: Samba mount/umount in docker container triggers kernel Oops Status in linux package in Ubuntu: Confirmed Bug description: When running 2 docker containers, one as samba server and another one as samba client that mounts and umounts a smb share a kernel OOps can be triggered on multiple kernels. The kernel message: unregister_netdevice: waiting for lo to become free. Usage count = 1 shows up, some minutes later the oops and/or warnings happens. The scripts to trigger the kernel Oops can be found at: https://github.com/fho/docker-samba-loop I was able to reproduce kernel Oopses on a clean Ubuntu 16.0.4 installation with: - linux-image-4.4.0-93-generic=4.4.0-93.116~14.04.1 - linux-image-4.10.0-32-generic=4.10.0-32.36~16.04.1 - linux-image-4.11.0-14-generic=4.11.0-14.20~16.04.1 In a different scenario were Ubuntu 16.04 servers were running multiple docker containers with Nginx or small network applications in parallel, I was also able to reproduce the kernel Oopses also on: - linux-image-4.10.0-1004-gcp - linux-image-4.12.10-041210-generic=4.12.10-041210.20170830 I haven't tried again to reproduce it with those kernels on a clean Ubuntu installation and unfortunately didn't kept the kernel logs. The "unregister_netdevice: waiting for lo to become free. Usage count = 1" messages are related to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407 which is handled as separate issue. According to https://github.com/moby/moby/issues/35068 the crash is fixed by: https://patchwork.ozlabs.org/patch/801533/ https://patchwork.ozlabs.org/patch/778449/ --- AlsaDevices: total 0 crw-rw 1 root audio 116, 1 Nov 3 09:51 seq crw-rw 1 root audio 116, 33 Nov 3 09:51 timer AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.20.1-0ubuntu2.10 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A DistroRelease: Ubuntu 16.04 IwConfig: Error: [Errno 2] No such file or directory Lsusb: Error: command ['lsusb'] failed with exit code 1: MachineType: Google Google Compute Engine Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=rxvt-unicode-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-37-generic root=UUID=bf9a017a-931d-4191-84bc-b8434dbba527 ro scsi_mod.use_blk_mq=Y console=ttyS0 ProcVersionSignature: Ubuntu 4.10.0-37.41~16.04.1-generic 4.10.17 RelatedPackageVersions: linux-restricted-modules-4.10.0-37-generic N/A linux-backports-modules-4.10.0-37-generic N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory Tags: xenial uec-images xenial uec-images Uname: Linux 4.10.0-37-generic x86_64 UnreportableReason: The report belongs to a package that is not installed. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: False dmi.bios.date: 01/01/2011 dmi.bios.vendor: Google dmi.bios.version: Google dmi.board.asset.tag: A3DDBB61-646B-C60C-3999-1F1D7B7A334A dmi.board.name: Google Compute Engine dmi.board.vendor: Google dmi.chassis.type: 1 dmi.chassis.vendor: Google dmi.modalias: dmi:bvnGoogle:bvrGoogle:bd01/01/2011:svnGoogle:pnGoogleComputeEngine:pvr:rvnGoogle:rnGoogleComputeEngine:rvr:cvnGoogle:ct1:cvr: dmi.product.name: Google Compute Engine dmi.sys.vendor: Google To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1729637/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1729637] Re: Samba mount/umount in docker container triggers kernel Oops
Thanks for the fast reply. I tried both kernels and was not able to trigger an Oops. On the 4.4.0-98.121~lp1729637-generic kernel a hung task warning happened: [ +0.750497] unregister_netdevice: waiting for lo to become free. Usage count = 1 [ +0.992665] aufs au_opts_verify:1597:dockerd[1620]: dirperm1 breaks the protection by the permission bits on the lower branch [ +0.016910] aufs au_opts_verify:1597:dockerd[1620]: dirperm1 breaks the protection by the permission bits on the lower branch [ +0.015247] aufs au_opts_verify:1597:dockerd[1592]: dirperm1 breaks the protection by the permission bits on the lower branch [ +0.006387] device veth7d3bee3 entered promiscuous mode [ +0.000923] IPv6: ADDRCONF(NETDEV_UP): veth7d3bee3: link is not ready [ +9.051406] unregister_netdevice: waiting for lo to become free. Usage count = 1 [ +10.067531] unregister_netdevice: waiting for lo to become free. Usage count = 1 [ +10.083551] unregister_netdevice: waiting for lo to become free. Usage count = 1 [Nov 3 18:53] unregister_netdevice: waiting for lo to become free. Usage count = 1 [ +8.055656] INFO: task exe:2868 blocked for more than 120 seconds. [ +0.006363] Not tainted 4.4.0-98-generic #121~lp1729637 [ +0.005970] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ +0.008347] exe D 88012a0e3cb8 0 2868 1 0x [ +0.06] 88012a0e3cb8 821db9a0 81e11500 8800ba25f000 [ +0.02] 88012a0e4000 81ef7a64 8800ba25f000 [ +0.02] 81ef7a68 88012a0e3cd0 818405d5 81ef7a60 [ +0.02] Call Trace: [ +0.11] [] schedule+0x35/0x80 [ +0.04] [] schedule_preempt_disabled+0xe/0x10 [ +0.03] [] __mutex_lock_slowpath+0xb9/0x130 [ +0.02] [] mutex_lock+0x1f/0x30 [ +0.07] [] copy_net_ns+0x6e/0x120 [ +0.10] [] create_new_namespaces+0x11b/0x1d0 [ +0.01] [] copy_namespaces+0x6d/0xa0 [ +0.05] [] copy_process+0x8e2/0x1b30 [ +0.03] [] _do_fork+0x80/0x360 [ +0.02] [] SyS_clone+0x19/0x20 [ +0.04] [] entry_SYSCALL_64_fastpath+0x16/0x71 [ +1.999139] unregister_netdevice: waiting for lo to become free. Usage count = 1 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1729637 Title: Samba mount/umount in docker container triggers kernel Oops Status in linux package in Ubuntu: In Progress Status in linux source package in Xenial: In Progress Status in linux source package in Zesty: In Progress Bug description: When running 2 docker containers, one as samba server and another one as samba client that mounts and umounts a smb share a kernel OOps can be triggered on multiple kernels. The kernel message: unregister_netdevice: waiting for lo to become free. Usage count = 1 shows up, some minutes later the oops and/or warnings happens. The scripts to trigger the kernel Oops can be found at: https://github.com/fho/docker-samba-loop I was able to reproduce kernel Oopses on a clean Ubuntu 16.0.4 installation with: - linux-image-4.4.0-93-generic=4.4.0-93.116~14.04.1 - linux-image-4.10.0-32-generic=4.10.0-32.36~16.04.1 - linux-image-4.11.0-14-generic=4.11.0-14.20~16.04.1 In a different scenario were Ubuntu 16.04 servers were running multiple docker containers with Nginx or small network applications in parallel, I was also able to reproduce the kernel Oopses also on: - linux-image-4.10.0-1004-gcp - linux-image-4.12.10-041210-generic=4.12.10-041210.20170830 I haven't tried again to reproduce it with those kernels on a clean Ubuntu installation and unfortunately didn't kept the kernel logs. The "unregister_netdevice: waiting for lo to become free. Usage count = 1" messages are related to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407 which is handled as separate issue. According to https://github.com/moby/moby/issues/35068 the crash is fixed by: https://patchwork.ozlabs.org/patch/801533/ https://patchwork.ozlabs.org/patch/778449/ --- AlsaDevices: total 0 crw-rw 1 root audio 116, 1 Nov 3 09:51 seq crw-rw 1 root audio 116, 33 Nov 3 09:51 timer AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.20.1-0ubuntu2.10 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A DistroRelease: Ubuntu 16.04 IwConfig: Error: [Errno 2] No such file or directory Lsusb: Error: command ['lsusb'] failed with exit code 1: MachineType: Google Google Compute Engine Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=rxvt-unicode-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: ProcK
[Kernel-packages] [Bug 1729637] Re: Samba mount/umount in docker container triggers kernel Oops
No, the hung task warning is bug: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407 Without the patches the kernel probably crashed during my tests before the hung task could happen. On artful the hung task warning does not happen. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1729637 Title: Samba mount/umount in docker container triggers kernel Oops Status in linux package in Ubuntu: In Progress Status in linux source package in Xenial: In Progress Status in linux source package in Zesty: In Progress Bug description: When running 2 docker containers, one as samba server and another one as samba client that mounts and umounts a smb share a kernel OOps can be triggered on multiple kernels. The kernel message: unregister_netdevice: waiting for lo to become free. Usage count = 1 shows up, some minutes later the oops and/or warnings happens. The scripts to trigger the kernel Oops can be found at: https://github.com/fho/docker-samba-loop I was able to reproduce kernel Oopses on a clean Ubuntu 16.0.4 installation with: - linux-image-4.4.0-93-generic=4.4.0-93.116~14.04.1 - linux-image-4.10.0-32-generic=4.10.0-32.36~16.04.1 - linux-image-4.11.0-14-generic=4.11.0-14.20~16.04.1 In a different scenario were Ubuntu 16.04 servers were running multiple docker containers with Nginx or small network applications in parallel, I was also able to reproduce the kernel Oopses also on: - linux-image-4.10.0-1004-gcp - linux-image-4.12.10-041210-generic=4.12.10-041210.20170830 I haven't tried again to reproduce it with those kernels on a clean Ubuntu installation and unfortunately didn't kept the kernel logs. The "unregister_netdevice: waiting for lo to become free. Usage count = 1" messages are related to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407 which is handled as separate issue. According to https://github.com/moby/moby/issues/35068 the crash is fixed by: https://patchwork.ozlabs.org/patch/801533/ https://patchwork.ozlabs.org/patch/778449/ --- AlsaDevices: total 0 crw-rw 1 root audio 116, 1 Nov 3 09:51 seq crw-rw 1 root audio 116, 33 Nov 3 09:51 timer AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.20.1-0ubuntu2.10 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A DistroRelease: Ubuntu 16.04 IwConfig: Error: [Errno 2] No such file or directory Lsusb: Error: command ['lsusb'] failed with exit code 1: MachineType: Google Google Compute Engine Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=rxvt-unicode-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-37-generic root=UUID=bf9a017a-931d-4191-84bc-b8434dbba527 ro scsi_mod.use_blk_mq=Y console=ttyS0 ProcVersionSignature: Ubuntu 4.10.0-37.41~16.04.1-generic 4.10.17 RelatedPackageVersions: linux-restricted-modules-4.10.0-37-generic N/A linux-backports-modules-4.10.0-37-generic N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory Tags: xenial uec-images xenial uec-images Uname: Linux 4.10.0-37-generic x86_64 UnreportableReason: The report belongs to a package that is not installed. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: False dmi.bios.date: 01/01/2011 dmi.bios.vendor: Google dmi.bios.version: Google dmi.board.asset.tag: A3DDBB61-646B-C60C-3999-1F1D7B7A334A dmi.board.name: Google Compute Engine dmi.board.vendor: Google dmi.chassis.type: 1 dmi.chassis.vendor: Google dmi.modalias: dmi:bvnGoogle:bvrGoogle:bd01/01/2011:svnGoogle:pnGoogleComputeEngine:pvr:rvnGoogle:rnGoogleComputeEngine:rvr:cvnGoogle:ct1:cvr: dmi.product.name: Google Compute Engine dmi.sys.vendor: Google To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1729637/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1711407] Re: unregister_netdevice: waiting for lo to become free
With https://github.com/fho/docker-samba-loop I was able to reproduce kernel Oopses on a clean Ubuntu 16.0.4 installation with: - linux-image-4.10.0-32-generic=4.10.0-32.36~16.04.1 - linux-image-4.11.0-14-generic=4.11.0-14.20~16.04.1 On 4.11.0-14 it was much harder to reproduce. Sometimes only a warning happened, 1x time I was able to produce an Oops with https://github.com/fho/docker-samba-loop/commits/more_stress But I don't know if the changes in the branch made it more likely to happen or if it was only a coincidence. The kernel message: unregister_netdevice: waiting for lo to become free. Usage count = 1 shows up, some minutes later the oops and/or warning happens. In a different scenario were the Ubuntu 16.04 servers were running multiple docker containers with Nginx or small network applications in parallel, I was also able to reproduce the kernel Oopses also on: - linux-image-4.10.0-1004-gcp - linux-image-4.4.0-93-generic - linux-image-4.11.0-14-generic - linux-image-4.12.10-041210-generic=4.12.10-041210.20170830 I haven't tried again to reproduce it with those kernels on a clean Ubuntu installation and unfortunately didn't kept the kernel logs. Kernel logs can be found in the attached file. ** Attachment added: "kernel-logs.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407/+attachment/4941935/+files/kernel-logs.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1711407 Title: unregister_netdevice: waiting for lo to become free Status in linux package in Ubuntu: Confirmed Bug description: This is a "continuation" of bug 1403152, as that bug has been marked "fix released" and recent reports of failure may (or may not) be a new bug. Any further reports of the problem should please be reported here instead of that bug. -- [Impact] When shutting down and starting containers the container network namespace may experience a dst reference counting leak which results in this message repeated in the logs: unregister_netdevice: waiting for lo to become free. Usage count = 1 This can cause issues when trying to create net network namespace and thus block a user from creating new containers. [Test Case] ? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1711407] Re: unregister_netdevice: waiting for lo to become free
Attached are the logs for an Oops on Ubuntu 14.04 on kernel linux- image-4.4.0-93-generic=4.4.0-93.116~14.04.1 ** Attachment added: "kernoops-4.4.0-93.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407/+attachment/4941963/+files/kernoops-4.4.0-93.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1711407 Title: unregister_netdevice: waiting for lo to become free Status in linux package in Ubuntu: Confirmed Bug description: This is a "continuation" of bug 1403152, as that bug has been marked "fix released" and recent reports of failure may (or may not) be a new bug. Any further reports of the problem should please be reported here instead of that bug. -- [Impact] When shutting down and starting containers the container network namespace may experience a dst reference counting leak which results in this message repeated in the logs: unregister_netdevice: waiting for lo to become free. Usage count = 1 This can cause issues when trying to create net network namespace and thus block a user from creating new containers. [Test Case] ? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1711407] Re: unregister_netdevice: waiting for lo to become free
I could not reproduce the bug with the described method with kernel 4.4.0-81-generic and neither with 4.13.0-041300rc7-generic. 4.4.0-81 logged a hung tasks but does not Oops. So the bug might have been reintroduced between 4.4.0-82 and 4.4.0-93 and 4.13 seems to contain a fix. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1711407 Title: unregister_netdevice: waiting for lo to become free Status in linux package in Ubuntu: Confirmed Bug description: This is a "continuation" of bug 1403152, as that bug has been marked "fix released" and recent reports of failure may (or may not) be a new bug. Any further reports of the problem should please be reported here instead of that bug. -- [Impact] When shutting down and starting containers the container network namespace may experience a dst reference counting leak which results in this message repeated in the logs: unregister_netdevice: waiting for lo to become free. Usage count = 1 This can cause issues when trying to create net network namespace and thus block a user from creating new containers. [Test Case] ? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
