lkml.org 
[lkml]   [2009]   [Jan]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [BUG] NULL pointer deref with rcutorture
* Paul E. McKenney (paulmck@linux.vnet.ibm.com) wrote:
> On Wed, Jan 07, 2009 at 09:19:04PM +0100, Eric Sesterhenn wrote:
> > * Paul E. McKenney (paulmck@linux.vnet.ibm.com) wrote:
> > > On Tue, Jan 06, 2009 at 04:48:09AM -0800, Paul E. McKenney wrote:
> > > > On Tue, Jan 06, 2009 at 08:47:07AM +0100, Eric Sesterhenn wrote:
> > > > > * Paul E. McKenney (paulmck@linux.vnet.ibm.com) wrote:
> > > > > > On Mon, Jan 05, 2009 at 04:29:12PM -0800, Paul E. McKenney wrote:
> > > > > > > On Mon, Jan 05, 2009 at 02:18:36PM -0800, Paul E. McKenney wrote:
> > > > > > > I will see what I can find from this.
> > > > > >
> > > > > > Hello, Eric,
> > > > > >
> > > > > > Just for grins, I built the 2.6.28 kernel/rcutorture.c on b58602a. It
> > > > > > insmoded and rmmoded without errors.
> > > > > >
> > > > > > Could you please try this on your setup? I have attached this file in
> > > > > > case that helps.
> > > > >
> > > > > works like a charm
> > > >
> > > > Well, that certainly tells me where the bug lies. ;-)
> > > >
> > > > Thank you for all your hard work on this, I should have a patch soon.
> > >
> > > And here it is, against the original version of rcutorture.c (revert
> > > all of my previous patches against rcutorture.c). I am also attaching
> > > the resulting rcutorture.c, if that makes things more convenient for you.
> > >
> > > Could you please fire this up and see if it fixes the rmmod-time bug
> > > that you located?
> >
> > it does fix the bug, thanks for your work
>
> Thank you very much for finding this one, bearing with me during the
> debug process, and testing it! I will post the patch with credit to you.
>
> Does this fix all of the problems that you observed, or is there still
> some breakage?

It fixes everything i saw. Thanks.

Eric


\
 
 \ /
  Last update: 2009-01-07 23:41    [W:0.057 / U:3.160 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site