lkml.org 
[lkml]   [2008]   [Oct]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: BUG: sleeping function called from invalid context at kernel/rwsem.c:131 XFS? (was: Re: linux-next: Tree for October 17)
    On Wed, Oct 22, 2008 at 12:21:23PM +0400, Alexander Beregalov wrote:
    > > Ah, OK, I see the problem, though I don't understand why I'm not
    > > seeing the might_sleep() triggering all the time given that I always
    > > build with:
    > >
    > > $ grep SLEEP .config
    > > CONFIG_DEBUG_SPINLOCK_SLEEP=y
    > >
    > > Basically the above commit moved xfs_ilock() inside
    > > radix_tree_preload()/radix_tree_preload_end(), which means we are
    > > taking a rwsem() while we have an elevated preempt count. I'll
    > > get a patch out to fix it.
    > Could it cause the I/O dead lock or should I continue trying to reproduce it?

    The deadlock wouldn't be produced by the same thing that
    produced the sleeping-in-atomic warning. The missed unlock that
    I also fixed in the patch I just sent could possibly have caused
    that, but I'm just speculating on that...

    Cheers,

    Dave.
    --
    Dave Chinner
    david@fromorbit.com


    \
     
     \ /
      Last update: 2008-10-22 10:31    [W:0.029 / U:151.716 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site