[Users] CT produces corrupt dump files

Kir Kolyshkin kir at openvz.org
Mon Apr 22 17:32:08 EDT 2013


On 04/22/2013 01:30 PM, Kir Kolyshkin wrote:
> On 04/15/2013 02:53 AM, Roman Haefeli wrote:
>> On Mon, 2013-04-15 at 11:14 +0200, Roman Haefeli wrote:
>>
>>> On one of our host nodes this problem even triggered a kernel panic and
>>> thus killed all CTs running on that host. The problem could have been
>>> mitigated if 'vzctl start' would not try to read corrupt dump files. 
>>> Or,
>>> if it detects a dump file corruption, it should ignore the dump file 
>>> and
>>> start normally.
>> Thinking more about it, shouldn't 'vzctl start <ctid>' even remove the
>> dump file after a start anyway? The data from the dump file is of no
>> value anymore soon as the CT is running. Thus it should be safe to just
>> delete dump files if some problem occurs. Does that make sense?
>>
>
> In fact that makes sense, thanks!
>
> Implemented in git:
> http://git.openvz.org/?p=vzctl;a=commit;h=eca2ff062
>
> Will appear in vzctl > 4.2

In the meantime you can check if this nightly build (which already have 
the above commit) works for you:

http://download.openvz.org/utils/nightlies/vzctl/current/


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