*** This bug is a duplicate of bug 1851709 ***
https://bugs.launchpad.net/bugs/1851709
** This bug has been marked a duplicate of bug 1851709
Ubuntu-5.0.0-33.35 introduces KVM regression with old Intel CPUs and Linux
guests
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https://lore.kernel.org/lkml/2019225423.29309-1-sean.j.christopher...@intel.com/
is the fix for 4.19
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Title:
Ubuntu-5.0.0-33.35
https://lore.kernel.org/lkml/68d02406-b9cc-2fc1-848c-
5d272d9a3...@proxmox.com/ contains upstream discussion, with mention of
a backported fix for 4.14 and 4.19..
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the following backport from the 0.8.3 queue should be what you are
looking for:
https://github.com/zfsonlinux/zfs/pull/9776/commits/ed3d9f4420dcb04d2b78de4e4adb25797dc93b0d
it does not include/depend on either of the problematic commits, but
does contain all known squashed follow-up fixes.
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@tasman: it's already slated for inclusion into one of the next kernel
packages: https://lists.ubuntu.com/archives/kernel-
team/2017-May/083976.html
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Public bug reported:
== SRU Justification ==
Impact: adding a tc filter sometimes fails, potentially followed by
kernel hangs and kernel NULL pointer dereference
Fix: proposed upstream by Wolfgang Bumiller [1,2]
Regression Potential: Since nobody else noticed this issue in 4.11 >=
rc1 or Ubuntu
SRU request sent to kernel-team list.
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https://bugs.launchpad.net/bugs/1682368
Title:
refcount underflow / kernel NULL dereference after attempting to add
basic tc filter
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Title:
refcount underflow / kernel NULL dereference after atte
See https://bugzilla.proxmox.com/show_bug.cgi?id=1351 and
https://forum.proxmox.com/threads/proxmox-
ve-5-0-beta1-released.33731/page-4#post-167127 for downstream reports by
users.
** Bug watch added: bugzilla.proxmox.com/ #1351
https://bugzilla.proxmox.com/show_bug.cgi?id=1351
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this is easily reproducible and triggers at least a DoS on a freshly
installed 17.04 system, from within an unprivileged LXD container. see
the transcript for the executed commands, and journal-1 and journal-2
for the first and second kernel traces (caused by the second to last and
last "tc" comman
** Attachment added: "transcript"
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** Attachment added: "journal-2"
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** Information type changed from Public to Public Security
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@seth-arnold: no, not yet. shall we request one from Mitre or does
Ubuntu/Canonical have a pool to assign one?
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Title:
refcount unde
CVE requested, will include once I get a reply.
Note that Canonical is listed as CNA for "Ubuntu/Linux issues" at
http://cve.mitre.org/cve/cna.html - maybe that list needs an update
then?
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2017-7979 was assigned (http://cve.mitre.org/cgi-
bin/cvename.cgi?name=CVE-2017-7979), but is not yet known to LP it
seems..
** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2017-7979
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Also tracked in https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=842237
, where it was prematurely closed.
** Bug watch added: Debian Bug tracker #842237
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=842237
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the proposed fix has been queue for -stable in v3, now as a single patch:
http://marc.info/?t=14926902325
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Title:
refcount under
the only big mm changes pulled in from 4.11.x that I could find with a
quick look through the history are related to KSM, but those are missing
a later fixup (from 4.11.x as well):
d75450ff40df0199bf13dfb19f435519ff947138 which fixes ace71a19cec5 ("mm:
introduce page_vma_mapped_walk()")
ace71a19c
and applied in v4.11-rc8:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e0535ce58b92d7baf0b33284a6c4f8f0338f943e
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see https://github.com/zfsonlinux/zfs/pull/6616 for the fix in ZFS on
Linux 0.7.3 (on the sender side). not yet backported to Open-ZFS, and
thus not in FreeBSDs ZFS either.
this is not really a bug in ZFS on the receiver side, it was an
accidental break of backwards compatibility.
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but, upgrading ZFS to 0.7.x would fix it on the receiving side, so that
might be an option for you ;)
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Title:
'zfs recv' hangs w
** Tags removed: verification-needed-artful
** Tags added: verification-done-artful
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Title:
[A] skb leak in vhost_net / tun / tap
S
** Tags removed: verification-needed-artful
** Tags added: verification-done-artful
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Title:
[A] KVM Windows BSOD on 4.13.x
Status i
IMHO this is completely backwards, see
https://github.com/zfsonlinux/zfs/pull/7259 for an upstream discussion
similar to this.
systemd service units are not the proper place to load modules - there
is {/lib,/etc}/modules-load.d/ which gets parsed by systemd-load-
modules.service early in the boot
the following upstream patch seems like a likely fix:
https://patchwork.kernel.org/patch/10154587/
otherwise, reverting the buggy commit seems to solve the issue as well
as a temporary measure.
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Public bug reported:
== SRU Justification ==
Impact: Windows 2016 and 10 VMs running in Qemu VMs using KVM trigger
BSODs under certain memory conditions
Fix: Single follow-up upstream cherry pick which fixes the problem.
Regression Potential: Merged in 4.15 and 4.14.6, tested by multiple
affect
Public bug reported:
== SRU Justification ==
Impact: Up to 30% performance regression for traffic from hypervisor
host to VM, caused by a memory leak
Fix: Cherry-picks from upstream stable tree to fix the memory leak
Regression Potential: Merged in 4.15 and 4.14.7, tested and verified by
multip
patch set sent
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Title:
[A] skb leak in vhost_net / tun / tap
Status in linux package in Ubuntu:
Confirmed
Bug description:
==
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Title:
[A] KVM Windows BSOD on 4.13.x
Status in linux package
patch sent
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Title:
[A] KVM Windows BSOD on 4.13.x
Status in linux package in Ubuntu:
Confirmed
Bug description:
== SRU Justifi
Public bug reported:
== SRU Justification ==
Impact: systems with CPUs lacking virtual NMI support are no longer able
to load the kvm_intel module, and thus not able to use KVM functionality
Fix: cherry-pick re-introducing support for software NMI support
Regression Potential: applied upstream
patch sent
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Title:
[A] KVM module in 4.13 no longer supports old Intel CPUs
Status in linux package in Ubuntu:
Confirmed
Bug des
no longer have the test hardware to verify the kernel in -proposed, but
I did verify that the commit in question fixes the problem (hence my
report ;)).
** Tags removed: verification-needed-zesty
** Tags added: verification-done-zesty
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cherry-picking these two commits should also be accompanied by cherry-
picking https://git.kernel.org/cgit/linux/kernel/git/stable/linux-
stable.git/commit/?id=6b4e3181d7bd5ca5ab6f45929e4a5ffa7ab4ab7f ,
otherwise users will see a lot of pre-mature OOM kills..
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Public bug reported:
SRU Justification:
Impact: reliably reproducible kernel BUG_ON leading to complete system hang
Fix: cherry-pick upstream followup commit
Testcase: mkfs.btrfs on Samsung SM/PM961 no longer triggers the BUG_ON
Detailed description:
the fix for http://bugs.launchpad.net/bugs/1
** Tags added: zesty
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Title:
[SRU][ZESTY]kernel BUG at /build/linux-
H5UzH8/linux-4.10.0/drivers/nvme/host/pci.c:567!
Status in l
apport-collect does not work after triggering the issue, and I have
included the relevant kernel traces anyway. => confirmed
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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** Tags removed: verification-needed-zesty
** Tags added: verification-done-zesty
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Title:
refcount underflow / kernel NULL dereferen
Public bug reported:
== SRU Justification ==
Impact: Windows Live-Migration does not work reliably anymore with
recent KVM RTC cherry-picks.
Fix: Single follow-up upstream cherry pick which fixes the problem.
Regression Potential: The patch has been upstream since 4.8, so it
should be well-test
works as expected, thanks.
** Tags removed: verification-needed-xenial
** Tags added: verification-done-xenial
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Title:
Recent KVM R
Continuing in
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1655842 ?
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Title:
system freeze when swapping to encrypted swap p
you could also try cherry-picking
https://git.kernel.org/cgit/linux/kernel/git/stable/linux-
stable.git/commit/?id=6b4e3181d7bd5ca5ab6f45929e4a5ffa7ab4ab7f , but
that will probably need some more inbetween patches as well..
reverting the two commits fixed the issue for our users (Proxmox VE,
which
Stack traces of hanging processes collected via /proc//stack:
proc-1519-stack.log:
[] cv_wait_common+0x109/0x140 [spl]
[] __cv_wait_sig+0x15/0x20 [spl]
[] txg_quiesce_thread+0x3e1/0x3f0 [zfs]
[] thread_generic_wrapper+0x71/0x80 [spl]
[] kthread+0xd8/0xf0
[] ret_from_fork+0x3f/0x70
[] 0xfff
apport information
** Attachment added: "CRDA.txt"
https://bugs.launchpad.net/bugs/1560869/+attachment/4608354/+files/CRDA.txt
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Ti
apport information
** Attachment added: "ProcCpuinfo.txt"
https://bugs.launchpad.net/bugs/1560869/+attachment/4608358/+files/ProcCpuinfo.txt
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apport information
** Attachment added: "Lspci.txt"
https://bugs.launchpad.net/bugs/1560869/+attachment/4608357/+files/Lspci.txt
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apport information
** Attachment added: "CurrentDmesg.txt"
https://bugs.launchpad.net/bugs/1560869/+attachment/4608355/+files/CurrentDmesg.txt
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apport information
** Attachment added: "ProcModules.txt"
https://bugs.launchpad.net/bugs/1560869/+attachment/4608361/+files/ProcModules.txt
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apport information
** Attachment added: "JournalErrors.txt"
https://bugs.launchpad.net/bugs/1560869/+attachment/4608356/+files/JournalErrors.txt
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apport information
** Attachment added: "ProcInterrupts.txt"
https://bugs.launchpad.net/bugs/1560869/+attachment/4608360/+files/ProcInterrupts.txt
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apport information
** Tags added: apport-collected xenial
** Description changed:
When doing "zfs create -V" and "zfs rename" operations on the same zpool
in parallel, there is a high chance for a deadlock leading to a complete
hang of the zpool in question (i.e., all further zfs operation
apport information
** Attachment added: "WifiSyslog.txt"
https://bugs.launchpad.net/bugs/1560869/+attachment/4608364/+files/WifiSyslog.txt
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apport information
** Attachment added: "UdevDb.txt"
https://bugs.launchpad.net/bugs/1560869/+attachment/4608363/+files/UdevDb.txt
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apport information
** Attachment added: "ProcEnviron.txt"
https://bugs.launchpad.net/bugs/1560869/+attachment/4608359/+files/ProcEnviron.txt
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apport information
** Attachment added: "PulseList.txt"
https://bugs.launchpad.net/bugs/1560869/+attachment/4608362/+files/PulseList.txt
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Another note: this can also be triggered only with rename operations on
zvols:
$ sudo zfs create -V 4096k pool1/zfsrename 1
$ sudo zfs create -V 4096k pool1/zfsrename 3
and then in two shells in parallel:
$ while : ; do echo "RENAME" `date`; sudo zfs rename pool1/testrename3
pool1/testrename4; s
Should be fixed with upstream version 0.6.5.6, so I guess this can be
closed once that version hits the archive.
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Title:
Concurrent
Does not trigger anymore with linux-image-4.4.0-16-generic 4.4.0-16.32 /
zfs.ko v0.6.5.6-0ubuntu1. zfsutils-linux and friends are still on
0.6.5.4-0ubuntu6.
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This seems to be caused by the call to "timeval_inject_offset_valid()"
introduced in kernel/time/ntp.c (in "ntp_validate_timex()") by
2ed8b5bac95a96e2334a6b9bcbe99eabaf83f931. timeval_inject_offset_valid
only handles timevals with microseconds, but systemd-timesyncd uses the
ADJ_NANO mode which sto
attached patch with fix tested with 4.4.0-45.66
note that instead of hardcoding the patched variant of lookup_bdev, it
might make sense to adapt the zfs automake files to autodetect and
handle both one parameter and two parameter variants?
that way, all three variations of building the zfs module
Public bug reported:
if a zvol of an existing, already imported zpool is a vdev of another
zpool, a call to "zpool import" will everything zfs related. the stack
trace is as follows:
[] taskq_wait+0x74/0xe0 [spl]
[] taskq_destroy+0x4b/0x100 [spl]
[] vdev_open_children+0x12d/0x180 [zfs]
[] vdev_ro
** Also affects: zfs-linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1636517
Title:
zfs: importing zpool with vdev on zvol h
can confirm that the test packages correctly allow importing of such
pools. thanks for the quick reaction!
minor nitpick since you referenced me in the changelog, please either
spell my last name "Grünbichler" (with 'ü'), or transcribed with 'ue',
and not with an 'i' - thanks! :)
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issue does not occur anymore for xenial (Ubuntu-4.4.0-49.70)
** Tags removed: verification-needed-xenial
** Tags added: verification-done-xenial
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FWIW, this not only affects the 5.15/jammy kernel series, but also at
least 6.2/lunar: https://github.com/openzfs/zfs/issues/15223 , and also
affects non-SGX use cases like OpenZFS features that benefit from AVX
support (raidz, encryption, ..)
** Bug watch added: github.com/openzfs/zfs/issues #152
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