lkml.org 
[lkml]   [2010]   [Dec]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: mmotm 2010-11-23 + autogroups -> inconsistent lock state
From
Date
On Thu, 2010-12-02 at 10:16 -0800, Paul E. McKenney wrote:
> On Wed, Nov 24, 2010 at 01:25:25PM -0700, Mike Galbraith wrote:
>
> > Despite task groups being freed via rcu, update_shares_cup() hits freed
> > memory and explodes, and nothing I've tried has been able to stop it.
> > The only thing I haven't tried (aside from the right thing;) is to take
> > rcu out of the picture entirely.
>
> Is your new autogroup structure retaining a pointer to memory that
> is freed by RCU?

That turned out to be a typo that left freed cfs_rq registered. No dark
elves (memory ordering), just a defenseless little typo.

-Mike



\
 
 \ /
  Last update: 2010-12-03 05:01    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site