On 15/11/10 20:35, C de-Avillez wrote:
> Hi Tony,
>
> Yes, it does help :-)
>
> Now, dpkg is a binary -- meaning the 'sync' used inside dpkg is not
> equivalent to the coreutils' 'sync' utility. It may even be that both
> dpkg and sync are using a fsync() call (or equivalent) -- but this does
> not make it a coreutils bug, it only shows, so far, the same basic
> issue.

Hi,

Yes, I realise  that the "dpkg" and "sync" binaries make system calls 
into the kernel but I thought it might be appropriate to report a bug 
with "coreutils" because of the interaction between "sync" and "dpkg".

> Also, the kernel OOPS trace suggests the *kernel* got hung while
> performing a sys_sync() call (and yes, I agree that it is probable both
> coreutils and dpkg would end up in the same kernel path). So... whatever
> happened seems to have happened below either utility.

OK, I should have reported this as a kernel bug not a "coreutils" bug.

> I wonder if you have remote filesystems, or some sort of disc/filesystem
> issue. It may be a good move to run apport-collect linux 675613' to
> collect kernel data.

I'm running the nfs-kernel server, but the systems concerned have all 
been running without any "sync" or "dpkg" problems until just recently.

An important point is that the coreutils "sync" command works properly 
on my server unless "dpkg" is deadlocked after a timeout attempting to 
sync() the filesystem, in which case the coreutils "sync" then blocks.

Bye,

   Tony.
-- 
Dr. A.J.Travis, University of Aberdeen, Rowett Institute of Nutrition
and Health, Greenburn Road, Bucksburn, Aberdeen AB21 9SB, Scotland, UK
tel +44(0)1224 712751, fax +44(0)1224 716687, http://www.rowett.ac.uk
mailto:[email protected], http://bioinformatics.rri.sari.ac.uk/~ajt

-- 
dpkg hangs during sync under 2.6.32-25-server kernel
https://bugs.launchpad.net/bugs/675613
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