Re: BUG: enabling psacct breaks fsfreeze
From: Nikola Ciprich
Date: Wed Oct 31 2012 - 08:48:25 EST
Hi Jan,
thanks for the reply, sure, I'll gather and post requested info.
One more note before that, the problem is with psacct, not audit
- psacct if I'm not mistaken (and as opposed to audit) doesn't
use any userspace, kernel dumps information directly to fs,
which might the reason for deadlock..
BR
nik
> > Should more debugging information be needed, I'll be glad to provide whatever I can..
> Thanks for report. Hum, I'm not sure how the deadlock can happen because
> AFAIU audit sends a message via netlink to userspace and whatever audit
> daemon does with it is its private thing. Can you please run:
> echo w >/proc/sysrq-trigger
> after the machine deadlocks and then take dmesg and attach it here? You'll
> have to have the shell prepared and use serial console / netconsole to gather
> dmesg or try your luck with copying via ssh / netcat.
>
> Honza
> --
> Jan Kara <jack@xxxxxxx>
> SUSE Labs, CR
>
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