| UnionFS bug [message #3571] |
Mon, 05 June 2006 10:42  |
Jun OKAJIMA
Messages: 30
Registered: March 2006
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Member |
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I guess there is bug between OpenVZ and UnionFS.
I dont know which side is wrong (OpenVZ or UnionFS),
but anyway, it has bug. See the log attached.
The key point is, it has no problem if you dont mount /proc,
but once you mount it, even just doing "ls -la" hangs.
Version:
2.6.16-026test009
unionfs-20060529-2327
BTW, I feel there also bug in ext3 jornaling recovery.
( Not ext3 itself, but jbd recovery).
I can not find out the condition of the problem so far,
but I have seen many times that recovering locks the kernel.
In all of such cases, there is no message, just hangs.
--- Okajima, Jun. Tokyo, Japan.
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| Re: UnionFS bug [message #3575 is a reply to message #3571] |
Mon, 05 June 2006 11:21  |
dev
Messages: 1693
Registered: September 2005
Location: Moscow
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Senior Member |
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Can you put the patches you applied to OVZ kernel somewhere, so we could
apply them and try to reproduce?
Also, if possible upload vmlinux from you kernel somewhere as well, so
we could decode the calltraces and find the oops reason.
> I guess there is bug between OpenVZ and UnionFS.
> I dont know which side is wrong (OpenVZ or UnionFS),
> but anyway, it has bug. See the log attached.
>
> The key point is, it has no problem if you dont mount /proc,
> but once you mount it, even just doing "ls -la" hangs.
>
> Version:
> 2.6.16-026test009
> unionfs-20060529-2327
>
>
> BTW, I feel there also bug in ext3 jornaling recovery.
> ( Not ext3 itself, but jbd recovery).
> I can not find out the condition of the problem so far,
> but I have seen many times that recovering locks the kernel.
> In all of such cases, there is no message, just hangs.
Does Alt-SysRq-P and AltSysRq-T works when it hangs?
Can you press these keys and collect the output?
Thanks,
Kirill
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