Re: [2.6.33-rc1] slab: possible recursive locking detected

[Heiko Carstens]

On Fri, Dec 18, 2009 at 02:58:13PM +0200, Pekka Enberg wrote:
> Hi Heiko,
> 
> On Fri, 2009-12-18 at 12:58 +0100, Heiko Carstens wrote:
> > Just got this with CONFIG_SLAB:
> > 
> > =============================================
> > [ INFO: possible recursive locking detected ]
> > 2.6.33-rc1-dirty #23
> > ---------------------------------------------
> > events/5/20 is trying to acquire lock:
> >  (&(&parent->list_lock)->rlock){..-...}, at: [<00000000000ee898>] cache_flusharray+0x3c/0x12c
> > 
> > but task is already holding lock:
> >  (&(&parent->list_lock)->rlock){..-...}, at: [<00000000000eee52>] drain_array+0x52/0x100
[...]
>
> Thanks for the report! Does reverting the following commit make the
> warning go away?
> 
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=ce79ddc8e2376a9a93c7d42daf89bfcbb9187e62

Yes, with that one reverted the warning is away.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/