[Lxc-users] errors

Tamas Papp tompos at martos.bme.hu
Thu May 23 17:47:10 UTC 2013


On 05/23/2013 07:34 PM, Serge Hallyn wrote:
> Quoting Tamas Papp (tompos at martos.bme.hu):
>> On 05/23/2013 03:39 PM, Tamas Papp wrote:
>>> On 05/23/2013 03:35 PM, Stéphane Graber wrote:
>>>> That looks like broken locking, though Serge would know for sure.
>>>> You may want to try clearing /dev/shm/*lxc* and see if that fixes the
>>>> problem (not usually recommended as those locks are there for a reason).
>>> OK.
>>>
>>> At this moment I'm trying to reproduce the problem on a test machine, but still no "luck".
>>>
>>> I'll let you know, as soon as I have something.
>> Well, I still was success in this.
>>
>> No I have 3 other system with the symptoms (FUTEX_WAIT, segfaults).
>>
>> Regerding to lock file, I renamed /dev/shm/sem.lxcapi.jcb-vmc02 and it's recreated automatically. It
>> is still there, no changes.
> I'm in the process of replacing those locks.  In the meantime, the
> /dev/shm/sem.* files are removed when things exit normally, but
> if you kill a lxc-* command while it is holding the lock, you
> may have to remove it manually.  If the commands are still running,
> then of course they should still be there, as the intent is to keep
> two programs which are both doing c->set_config_item("lxc.rootfs", x)
> from overwiting each other.
>
> I'll try to get the replacement for that ready for staging by
> tomorrow night.

FYI, now it works fine now with 0.9.0.0~staging~20130523-0240-0ubuntu1~ppa1~precise1 .
For this I had to stop all containers then start them again.

Thanks for you help guys,
tamas

ps.: Can I expect similar "bugs" from these changes, like this was?




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