Re: [BUG] NULL pointer deref with rcutorture

Eric Sesterhenn
2009-01-02T23:12:54Z

* Paul E. McKenney (paulmck@linux.vnet.ibm.com) wrote:
> On Sat, Jan 03, 2009 at 12:23:03AM +0530, Kamalesh Babulal wrote:
> > * Paul E. McKenney <paulmck@linux.vnet.ibm.com> [2009-01-02 09:58:53]:
> >
> > > On Fri, Jan 02, 2009 at 12:18:19PM +0100, Eric Sesterhenn wrote:
> > > > Hi,
> > > >
> > > > modprobing rcutorture and removing it again gives me the following oops:
> > >
> > > This looks similar to something that Kamalesh ran into a few weeks ago.
> > >
> > > Kamalesh, did the fixes for that make it to 2.6.28?
> > >
> > > Thanx, Paul
> > >
> >
> > Hi Paul,
> >
> > The fix was available in linux-next from Dec 23 2008 (commit 392ddc32982a5c661dd90dd49a3cb37f1c68b782
> > 'bio: add support for inlining a number of bio_vecs inside the bio') and it has be pushed for merger in 2.6.29.
>
> Thank you, Kamalesh!
>
> Eric, could you please try applying the above commit and see if the
> problem reproduces?

I tried to apply the patch from
http://git.kernel.dk/?p=linux-2.6-block.git;a=commitdiff_plain;h=392ddc32982a5c661dd90dd49a3cb37f1c68b782;hp=bb799ca0202a360fa74d5f17039b9100caebdde7
but get a message that it is already applied. Seems i already got that
one.

Greetings, Eric