Messages in this thread | | | Date | Wed, 7 Jan 2009 14:48:57 -0800 | From | "Paul E. McKenney" <> | Subject | Re: [BUG] NULL pointer deref with rcutorture |
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On Wed, Jan 07, 2009 at 11:34:12PM +0100, Eric Sesterhenn wrote: > * 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.
Woo-hoo!!! ;-)
Thanx, Paul
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