Hi.. I had to remove zram config from my production servers long ago. ... since then I don't have the issue. I was using LXD containers a lot on the hosts with different kind of usage,, But I don't have any other setup at the moment
On Fri, Jan 10, 2020 at 12:11 AM Colin Ian King <1799...@bugs.launchpad.net> wrote: > Can reproduce this with stress-ng exercising high memory pressure scenario > using: > stress-ng --brk 0 -v --aiol 0 > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1799497 > > Title: > 4.15 kernel hard lockup about once a week > > Status in linux package in Ubuntu: > Incomplete > Status in zram-config package in Ubuntu: > Incomplete > Status in linux source package in Bionic: > Confirmed > Status in zram-config source package in Bionic: > Confirmed > > Bug description: > My main server has been running into hard lockups about once a week > ever since I switched to the 4.15 Ubuntu 18.04 kernel. > > When this happens, nothing is printed to the console, it's effectively > stuck showing a login prompt. The system is running with panic=1 on > the cmdline but isn't rebooting so the kernel isn't even processing > this as a kernel panic. > > > As this felt like a potential hardware issue, I had my hosting provider > give me a completely different system, different motherboard, different > CPU, different RAM and different storage, I installed that system on 18.04 > and moved my data over, a week later, I hit the issue again. > > We've since also had a LXD user reporting similar symptoms here also on > varying hardware: > https://github.com/lxc/lxd/issues/5197 > > > My system doesn't have a lot of memory pressure with about 50% of free > memory: > > root@vorash:~# free -m > total used free shared buff/cache > available > Mem: 31819 17574 402 513 13842 > 13292 > Swap: 15909 2687 13222 > > I will now try to increase console logging as much as possible on the > system in the hopes that next time it hangs we can get a better idea > of what happened but I'm not too hopeful given the complete silence on > the console when this occurs. > > System is currently on: > Linux vorash 4.15.0-36-generic #39-Ubuntu SMP Mon Sep 24 16:19:09 UTC > 2018 x86_64 x86_64 x86_64 GNU/Linux > > But I've seen this since the GA kernel on 4.15 so it's not a recent > regression. > --- > ProblemType: Bug > AlsaDevices: > total 0 > crw-rw---- 1 root audio 116, 1 Oct 23 16:12 seq > crw-rw---- 1 root audio 116, 33 Oct 23 16:12 timer > AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': > 'aplay' > ApportVersion: 2.20.9-0ubuntu7.4 > Architecture: amd64 > ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': > 'arecord' > AudioDevicesInUse: > Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed > with exit code 1: Cannot stat file /proc/22822/fd/10: Permission denied > Cannot stat file /proc/22831/fd/10: Permission denied > DistroRelease: Ubuntu 18.04 > HibernationDevice: > RESUME=none > CRYPTSETUP=n > IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': > 'iwconfig' > Lsusb: > Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub > Bus 001 Device 002: ID 046b:ff10 American Megatrends, Inc. Virtual > Keyboard and Mouse > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > MachineType: Intel Corporation S1200SP > NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair > Package: linux (not installed) > PciMultimedia: > > ProcEnviron: > TERM=xterm > PATH=(custom, no user) > XDG_RUNTIME_DIR=<set> > LANG=en_US.UTF-8 > SHELL=/bin/bash > ProcFB: 0 mgadrmfb > ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-38-generic > root=UUID=575c878a-0be6-4806-9c83-28f67aedea65 ro biosdevname=0 > net.ifnames=0 panic=1 verbose console=tty0 console=ttyS0,115200n8 > ProcVersionSignature: Ubuntu 4.15.0-38.41-generic 4.15.18 > RelatedPackageVersions: > linux-restricted-modules-4.15.0-38-generic N/A > linux-backports-modules-4.15.0-38-generic N/A > linux-firmware 1.173.1 > RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' > Tags: bionic > Uname: Linux 4.15.0-38-generic x86_64 > UnreportableReason: This report is about a package that is not installed. > UpgradeStatus: No upgrade log present (probably fresh install) > UserGroups: > > _MarkForUpload: False > dmi.bios.date: 01/25/2018 > dmi.bios.vendor: Intel Corporation > dmi.bios.version: S1200SP.86B.03.01.1029.012520180838 > dmi.board.asset.tag: Base Board Asset Tag > dmi.board.name: S1200SP > dmi.board.vendor: Intel Corporation > dmi.board.version: H57532-271 > dmi.chassis.asset.tag: .................... > dmi.chassis.type: 23 > dmi.chassis.vendor: ............................... > dmi.chassis.version: .................. > dmi.modalias: > dmi:bvnIntelCorporation:bvrS1200SP.86B.03.01.1029.012520180838:bd01/25/2018:svnIntelCorporation:pnS1200SP:pvr....................:rvnIntelCorporation:rnS1200SP:rvrH57532-271:cvn...............................:ct23:cvr..................: > dmi.product.family: Family > dmi.product.name: S1200SP > dmi.product.version: .................... > dmi.sys.vendor: Intel Corporation > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1799497/+subscriptions > -- 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/1799497 Title: 4.15 kernel hard lockup about once a week Status in linux package in Ubuntu: Incomplete Status in zram-config package in Ubuntu: Incomplete Status in linux source package in Bionic: Confirmed Status in zram-config source package in Bionic: Confirmed Bug description: My main server has been running into hard lockups about once a week ever since I switched to the 4.15 Ubuntu 18.04 kernel. When this happens, nothing is printed to the console, it's effectively stuck showing a login prompt. The system is running with panic=1 on the cmdline but isn't rebooting so the kernel isn't even processing this as a kernel panic. As this felt like a potential hardware issue, I had my hosting provider give me a completely different system, different motherboard, different CPU, different RAM and different storage, I installed that system on 18.04 and moved my data over, a week later, I hit the issue again. We've since also had a LXD user reporting similar symptoms here also on varying hardware: https://github.com/lxc/lxd/issues/5197 My system doesn't have a lot of memory pressure with about 50% of free memory: root@vorash:~# free -m total used free shared buff/cache available Mem: 31819 17574 402 513 13842 13292 Swap: 15909 2687 13222 I will now try to increase console logging as much as possible on the system in the hopes that next time it hangs we can get a better idea of what happened but I'm not too hopeful given the complete silence on the console when this occurs. System is currently on: Linux vorash 4.15.0-36-generic #39-Ubuntu SMP Mon Sep 24 16:19:09 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux But I've seen this since the GA kernel on 4.15 so it's not a recent regression. --- ProblemType: Bug AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Oct 23 16:12 seq crw-rw---- 1 root audio 116, 33 Oct 23 16:12 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Cannot stat file /proc/22822/fd/10: Permission denied Cannot stat file /proc/22831/fd/10: Permission denied DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=none CRYPTSETUP=n IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig' Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 046b:ff10 American Megatrends, Inc. Virtual Keyboard and Mouse Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Intel Corporation S1200SP NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 mgadrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-38-generic root=UUID=575c878a-0be6-4806-9c83-28f67aedea65 ro biosdevname=0 net.ifnames=0 panic=1 verbose console=tty0 console=ttyS0,115200n8 ProcVersionSignature: Ubuntu 4.15.0-38.41-generic 4.15.18 RelatedPackageVersions: linux-restricted-modules-4.15.0-38-generic N/A linux-backports-modules-4.15.0-38-generic N/A linux-firmware 1.173.1 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' Tags: bionic Uname: Linux 4.15.0-38-generic x86_64 UnreportableReason: This report is about a package that is not installed. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: False dmi.bios.date: 01/25/2018 dmi.bios.vendor: Intel Corporation dmi.bios.version: S1200SP.86B.03.01.1029.012520180838 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: S1200SP dmi.board.vendor: Intel Corporation dmi.board.version: H57532-271 dmi.chassis.asset.tag: .................... dmi.chassis.type: 23 dmi.chassis.vendor: ............................... dmi.chassis.version: .................. dmi.modalias: dmi:bvnIntelCorporation:bvrS1200SP.86B.03.01.1029.012520180838:bd01/25/2018:svnIntelCorporation:pnS1200SP:pvr....................:rvnIntelCorporation:rnS1200SP:rvrH57532-271:cvn...............................:ct23:cvr..................: dmi.product.family: Family dmi.product.name: S1200SP dmi.product.version: .................... dmi.sys.vendor: Intel Corporation To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1799497/+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
