Also I assume the bug is fixed in Ubuntu 20.04 and later as well. Could
you please confirm that?
** Changed in: glibc (Ubuntu)
Status: Confirmed => Incomplete
** Changed in: glibc (Ubuntu Bionic)
Status: New => Incomplete
** Changed in: glibc (Ubuntu Focal)
Status: New =>
2.27-3ubuntu1.3 has been released to bionic-updates. @mnaser do I
understand correctly that this bug is fully fixed by it?
** Also affects: glibc (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: openvswitch (Ubuntu Focal)
Importance: Undecided
Status: New
**
For context - 2.27-3ubuntu1.3 is in bionic-proposed
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Title:
Open vSwitch (Version 2.9.2) goes into deadlocked state
To manage notifications
Thanks for the research @mnaser - interesting that this is only seen on
much more powerful machines which I think has been the key blocker to
reproduction of this issue.
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So, it turns out that 2.27-3ubuntu1.3 could fix this because of the fact
that not only does it include that patch, but a full rebase to 2.27
branch of upstream glibc, which does include the other fix mentioned
above (I found this out when I tried to rebuild locally and found out
that quilt was
I have done some extensive research on this and I am able to confirm
that while Bug #1864864 does solve a class of issues, it does not solve
the one affecting Open vSwitch, as it does rely on
PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP:
Likely it is not a duplicate, see my comment in #10 and in the bugzilla.
So if branch-pthread_rwlock_trywrlock-hang-23844.patch is the patch from
the bugzilla, I tested that earlier and it did not solve the issue. The
issue here seems to be with pthread_rwlock_rdlock hanging, see the
tracebacks in
is this duplicate of
https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/1864864 ?
does new glibc from bionic-proposed
https://launchpad.net/ubuntu/+source/glibc/2.27-3ubuntu1.3 help?
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@salmankh
you can solve this by installing this packages from eoan
```
libc6
libc6-dbg
libcap-ng0
libc-bin
libidn2-0
locales
openvswitch-common
openvswitch-switch
```
and don't forget to run `systemctl daemon-reexec` afterwards!
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And obviously that restarting of ovs and neutron services disrupt the
network traffic massively.
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Title:
Open vSwitch (Version 2.9.2) goes into
Is there glic upgrade coming on 18.04? We are hit by this problem very
frequently and the only way out is to restart the ovs and neutron
services.
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we are also affected by this issue and would appreciate if glibc would
be updated to 2.29-0ubuntu2 in bionic repositories.
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Title:
Open vSwitch
I would also like to share our experiences:
We have had problems with this bug for a hole year. "ovs is dead..."
First we suspected a bug in openvswitch. But, this issue made us aware of
glibc: https://github.com/openvswitch/ovs-issues/issues/175
We updated glibc to version 2.29-0ubuntu2 from
** Changed in: glibc (Ubuntu)
Importance: Undecided => High
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Title:
Open vSwitch (Version 2.9.2) goes into deadlocked state
To manage
So as documented in https://github.com/openvswitch/ovs-issues/issues/175
, this really seems to be a bug in glibc and not in openswitch. After
installing libc6 and related pkgs at version 2.29-0ubuntu2 (from disco),
the issue is resolved for us. The single patch from
Here a similar portion from the ovs log and gdb trace running openvswitch
2.11.0-0ubuntu2:
Thu Oct 31 18:20:23
2019-2019-10-31T17:20:23.521Z|1|ovs_rcu(urcu4)|WARN|blocked 1000 ms waiting
for revalidator124 to quiesce
Thu Oct 31 18:20:24
** Attachment added: "GDB trace ovs 2.9.2 during when it hangs"
https://bugs.launchpad.net/ubuntu/+source/openvswitch/+bug/1839592/+attachment/5308470/+files/gdbwrap.1566706577.log.gz
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I just came across this bug report and would like to share my
expierence.
I've been having similar issues on 6 servers since we upgraded from 16.04 to
18.04 about 2 years ago with openvswitch.
Our biggest problem is our inabilty to reproduce it. We just see Openvswitch
hanging from time to
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: glibc (Ubuntu)
Status: New => Confirmed
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Title:
bug ref for 2.9.5 SRU - bug 1854360
** Also affects: glibc (Ubuntu)
Importance: Undecided
Status: New
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Title:
Open vSwitch (Version
2.9.5 test packages in:
https://launchpad.net/~ci-train-ppa-
service/+archive/ubuntu/3534/+packages
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Title:
Open vSwitch (Version 2.9.2) goes
>From the discussion in https://github.com/openvswitch/ovs-
issues/issues/175 it seems like this may actually be a glibc bug
https://sourceware.org/bugzilla/show_bug.cgi?id=23844 , I'll try to get
some tests done in order to confirm this.
** Bug watch added:
https://github.com/openvswitch/ovs/commit/2ed1c95e9c80a21a5d81cb760c872b62b32b0733
This seems to be commit for this.
and 2.9.3 has it.
@Camilo, Do you have reproducer for this issue?
** Tags added: sts
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: openvswitch (Ubuntu)
Status: New => Confirmed
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