This bug was fixed in the package libvirt - 1.2.8-0ubuntu11.3
---
libvirt (1.2.8-0ubuntu11.3) utopic-proposed; urgency=medium
* apparmor libvirt-qemu template: allow reading charm-specific ceph config
and allow reading under /tmp and /var/tmp (for SRU only) (LP: #1403648)
* m
tried 1.2.8-0ubuntu11.3. seems to resolve.
** Tags removed: verification-needed
** Tags added: verification-done
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Title:
libvirt-bin crashes / r
Hello Don, or anyone else affected,
Accepted libvirt into utopic-proposed. The package will build now and be
available at
http://launchpad.net/ubuntu/+source/libvirt/1.2.8-0ubuntu11.3 in a few
hours, and then in the -proposed repository.
Please help us by testing this new package. See
https://wi
** No longer affects: libvirt (Ubuntu Trusty)
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Title:
libvirt-bin crashes / refuses to restart if cgmanager is restarted
To manage notifications
> Any change that this patch will make it into Utopic anytime soon?
I will get this into utopic-proposed this week. Once accepted it should
sit there for about a week before going into utopic-updates (if the
fix is verified)
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I added the ppa:
$ cat /etc/apt/sources.list.d/serge-hallyn-ubuntu-virt-utopic.list
deb http://ppa.launchpad.net/serge-hallyn/virt/ubuntu utopic main
whilst the sru process presumably continues.
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Any change that this patch will make it into Utopic anytime soon?
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https://bugs.launchpad.net/bugs/1397130
Title:
libvirt-bin crashes / refuses to restart if cgmanager is restarted
To
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: libvirt (Ubuntu Utopic)
Status: New => Confirmed
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Titl
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: libvirt (Ubuntu Trusty)
Status: New => Confirmed
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Titl
This bug was fixed in the package libvirt - 1.2.8-0ubuntu18
---
libvirt (1.2.8-0ubuntu18) vivid; urgency=medium
* mutex cgmanager actions (Thanks to Don Bowman for finding the cause)
(LP: #1397130) (LP: #1367702)
-- Serge HallynThu, 18 Dec 2014 13:28:03 -0600
** Changed in
** Description changed:
+
+ Impact: libvirt hangs
+ Fix: mutex libvirt's access to cgmanager
+ Test case: see script in #14
+ Regression potential: if this is done wrongly, it could cause a deadlock. No
non-cgmanager codepaths are affected.
+
+
** Changed in: libvirt (Ubuntu)
Status: Incomplete => In Progress
** Also affects: libvirt (Ubuntu Utopic)
Importance: Undecided
Status: New
** Also affects: libvirt (Ubuntu Trusty)
Importance: Undecided
Status: New
** Changed in: libvirt (Ubuntu Trusty)
Importance:
Thanks Don, and thanks very much for nailing down the cause!
I'll get a fix out for v today and start the SRU process.
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Title:
libvirt-bin crash
i ran the ppa image on 10 blades for a day in my production. its cycled
through ~10K instances. so far so good, it appears to have solved this
issue.
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The attachment "don-cgm.patch" seems to be a patch. If it isn't, please
remove the "patch" flag from the attachment, remove the "patch" tag, and
if you are a member of the ~ubuntu-reviewers, unsubscribe the team.
[This is an automated message performed by a Launchpad user owned by
~brian-murray,
I just tried, it did not immediately reproduce, will let it run for a
bit.
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Title:
libvirt-bin crashes / refuses to restart if cgmanager is resta
Thanks for the reproducer script. Note that I had to tweak it to sleep
a second before the last virsh list, else it always failed bc libvirt
simply hadn't finished starting up yet.
I can reproduce the bug with stock utopic. With the libvirt package in
ppa:~serge-hallyn/virt, i cannot.
Could you
Hi Don,
indeed the underlying libs (mainly the libnih-dbus ones) are not thread-safe.
We've had to serialize access to cgmanager-client in lxc for the same
reason.
The cgm_dbus_connect() happens once on every cgmanager action, not once
at libvirt startup. So doing pthread_once() is not going to
this patch to libvirt gets it going.
** Patch added: "don-cgm.patch"
https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1397130/+attachment/4282322/+files/don-cgm.patch
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https://
so part of the issue is cgm_* is not thread safe, but is called from various
threads.
e.g. if u start libvirtd w/ several instances already running, it will call
cgm_dbus_connect from each.
there is a pair of global variable:
static NihDBusProxy *cgroup_manager = NULL;
bool cgm_running = false;
script to reproduce (as attachment)
** Attachment added: "script to reproduce"
https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1397130/+attachment/4281789/+files/repro
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https:/
the attached script will reproduce this on utopic. I did it on a virtual
machine running under kvm, but it will also do it bare-metal.
#!/bin/bash
apt-get -qy install virtinst libvirt-bin
die() {
echo "$*"
exit 1
}
dir=$(mktemp -d "/tmp/repro.XX")
echo "rep files in $dir"
cd "$dir"
the attached script will reproduce this on utopic.
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Title:
libvirt-bin crashes / refuses to restart if cgmanager is restarted
To manage notifica
reproduced with requested steps attached
** Attachment removed: "ubuntu-virt.txt"
https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1397130/+attachment/4279216/+files/ubuntu-virt.txt
** Attachment added: "ubuntu-virt.txt"
https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1397130
another way to reproduce this is to start new instances quickly (e.g.
create back to back), and then restart libvirt-bin.
and sometimes, just start new instances quickly (w/o restart libvirt-
bin)
for example, for host X, if the sleep are commented out, it will
normally crash libvirt if this is r
the latest repro shows this stack trace if it helps.
Linux nubo-9 3.16.0-28-generic #37-Ubuntu SMP Mon Dec 8 17:15:28 UTC 2014
x86_64 x86_64 x86_64 GNU/Linux
root@nubo-9:/var/crash# dpkg -l |grep cgm
ii cgmanager 0.33-2
amd64Central
attached.
it didn't happen the first time [w/ 0 instances running].
i then started 1, and virsh hung [after my earlier restart?]
its now dead.
this is a different blade, a 2x E5-2640 0 @ 2.50GHz
** Attachment added: "ubuntu-virt.txt"
https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/139
463.169884] init: cgmanager main process (510) killed by TERM signal
[ 468.885143] show_signal_msg: 1 callbacks suppressed
[ 468.885149] libvirtd[44515]: segfault at 0 ip 7fb39575b90f sp
7fb38241b8e0 error 4 in libvirt.so.0.1002.8[7fb3956f+2b3000][
469.049895] init: libvirt-bin mai
Thanks for reporting this bug. I can't seem to reproduce this on my
utopic laptop. However, in your example you have > 30 instances
running. Do you still get this when you have no instances running when
restart cgmanager and libvirtd?
Can you show the following info both before and after the re
(gdb) bt
#0 0x7f9fd650ad27 in __GI_raise (sig=sig@entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:56
#1 0x7f9fd650c418 in __GI_abort () at abort.c:89
#2 0x7f9fd448f538 in cgmanager_get_pid_cgroup_sync () from
/lib/x86_64-linux-gnu/libcgmanager.so.0
#3 0x7f9fd6b2302b in cgm
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `libvirtd -v'.
Program terminated with signal SIGABRT, Aborted.
#0 0x7fa266277d27 in __GI_raise (sig=sig@entry=6) at
../nptl/sysdeps/unix/sysv/linux/r
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