Re: [idr/perf_init_event] BUG: unable to handle kernel NULL pointer dereference at (null)

Fengguang Wu
2013-02-23T01:42:01Z

On Fri, Feb 22, 2013 at 05:35:54PM -0800, Tejun Heo wrote:
> On Fri, Feb 22, 2013 at 05:34:48PM -0800, Tejun Heo wrote:
> > Hello,
> >
> > On Sat, Feb 23, 2013 at 09:30:11AM +0800, Fengguang Wu wrote:
> > > Greetings,
> > >
> > > I got the below dmesg and the first bad commit is
> > >
> > > commit f5947173c082a04a9804bb42a91a0f5df5ee0527
> > > Author: Tejun Heo <tj@kernel.org>
> > > Date: Wed Feb 20 02:05:52 2013 +0000
> > >
> > > idr: implement lookup hint
> >
> > Andy Shevchenko already posted fix two days ago. Let me check whether
> > that went in yet.
>
> Yeah, already in -mm. It's titled "idr: always do slow path when hint
> is uninitialized".

Great, thanks for the info!

Fengguang