Submitter is not responding. Closing
** Changed in: linux (Ubuntu)
Status: Incomplete => Won't Fix
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Title:
lxc-start enters uninterruptib
Marking as invalid for LXC since this is a kernel bug.
** Changed in: lxc (Ubuntu)
Status: Confirmed => Invalid
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Title:
lxc-start enters
@arges
does the kernel patch set you sent to kernel-team@ yesterday help the
testcase you put in comment #22?
Someone just pointed out he got this
[54545.873460] unregister_netdevice: waiting for lo to become free.
Usage count = 1
in a 3.8 kernel when using macvlan in a container.
It seems to
I can achieve a similar hung task by using the following script:
#!/bin/bash -x
NUM=7999
for (( i=0; i<${NUM}; i++ ))
do
ip netns add foobar$i
done
for (( i=0; i<${NUM}; i++ ))
do
ip netns delete foobar$i
done
for (( i=0; i<${NUM}; i++ ))
do
ip netns add foobar$i
done
for (( i=0; i<${NU
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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Title:
lxc-start enters uninterruptible sleep
To manage notifications abou
This looks to be the third case we hit with the same symptom (and likely
for yet another reason). The complicating issue is that lxc containers
make use of net namespaces and if those are released, references to I
think the netdevice structures, are temporarily moved over to the
loopback device. So
The last one I'm aware of that did not exhibit this issue was 3.5.0-27.
I wish I had a simpler repro though, since on our system it takes 10-15
hours of heavy processing to hit the uninterruptible sleeps.
Could it be tracked by looking at the state of the OS? Every new lxc-
start ends up hanging a
Thanks for testing the upstream kernel. One additional question. Was
there a previous kernel version that did not exhibit this issue? It
would be good to know if this is a regression. If it is, we can perform
a bisect to identify the commit that introduced it.
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Managed to repro with v3.10-saucy last night.
What do you guys suspect it could be?
I'm keeping the server in this state for now if you'd like me to gather
some data.
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** Tags added: kernel-bug-exists-upstream
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Title:
lxc-start enters uninterruptible sleep
To manage notifications about this bug go to:
https://b
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v3.10 kernel[0].
If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.
If the mainline kernel does not fix t
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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Title:
lxc-start enters uninterruptible sleep
To manage notifications about this
Changing to Confirmed as per instructions in comment #7
** Changed in: linux
Status: Incomplete => Confirmed
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Title:
lxc-start enters uni
Attaching a better apport file after installing the missing dependency.
I will hide the ones from earlier as this will contain the same data and
more.
** Attachment added: "apport.lxc.txt"
https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1196295/+attachment/3722586/+files/apport.lxc.txt
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Looks like apport was missing some module to gather what it wanted. Let
me know if this info would be valuable and I can re-run it.
** Changed in: lxc (Ubuntu)
Status: Incomplete => Confirmed
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apport information
** Tags added: apport-collected
** Description changed:
After running and terminating around 6000 containers overnight,
something happened on my box that is affecting every new LXC container I
try to start. The DEBUG log file looks like:
lxc-start 1372615570.3
** Changed in: linux
Importance: Undecided => High
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Importance: Undecided => High
** Tags added: kernel-da-key raring
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This should help.
kern.log:
Jul 2 05:41:32 server1 kernel: [136565.201601] device vethbJ4JsM left
promiscuous mode
Jul 2 05:41:32 server1 kernel: [136565.201603] vmbr: port 5(vethbJ4JsM)
entered disabled state
Jul 2 05:41:38 server1 kernel: [136570.551496] vmbr: port 2(veth49SiBX)
entered f
Thanks for the info
affects: linux
** Also affects: linux
Importance: Undecided
Status: New
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Title:
lxc-start enters uninterruptibl
Reproduced even with lxc-stop.
dmesg:
[178420.689704] unregister_netdevice: waiting for lo to become free. Usage
count = 1
[178430.919783] unregister_netdevice: waiting for lo to become free. Usage
count = 1
[178441.149854] unregister_netdevice: waiting for lo to become free. Usage
count = 1
[
Some basic environment details. I can post more if requested.
Ubuntu Server 13.04 64-bit
$ uname -r
3.8.0-25-generic
$ dpkg -l | grep lxc
ii liblxc00.9.0-0ubuntu3.3
amd64Linux Containers userspace tools (library)
ii lxc
Also, in dmesg:
[54545.873460] unregister_netdevice: waiting for lo to become free. Usage count
= 1
[54556.103535] unregister_netdevice: waiting for lo to become free. Usage count
= 1
[54566.333609] unregister_netdevice: waiting for lo to become free. Usage count
= 1
[54576.563664] unregister_n
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