lkml.org 
[lkml]   [2008]   [Nov]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [linux-next] possible circular locking dependency for cryptsetup
On Fri, Nov 07, 2008 at 08:37:50PM +1100, Stephen Rothwell wrote:
>
> > =======================================================
> > [ INFO: possible circular locking dependency detected ]
> > 2.6.28-rc3-next-20081106-mad-1 #2
> > -------------------------------------------------------
> > cryptsetup/2554 is trying to acquire lock:
> > (&cpu_hotplug.lock){--..}, at: [<c012cd32>] get_online_cpus+0x22/0x40
> >
> > but task is already holding lock:
> > (&mm->mmap_sem){----}, at: [<c018b98e>] sys_mlockall+0x5e/0xd0

I don't see anything in the back-trace that's crypto related
or even dm related. Therefore I suspect the problem is in core
sysfs, mm or CPU hot plugging.

Cheers,
--
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt


\
 
 \ /
  Last update: 2008-11-07 13:43    [W:0.031 / U:2.324 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site