Messages in this thread | | | Date | Wed, 2 Sep 2015 11:32:55 -0400 | From | Tejun Heo <> | Subject | Re: __blkg_lookup oops with 4.2-rcX |
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Hello,
On Wed, Sep 02, 2015 at 10:53:07AM -0400, Tejun Heo wrote: > On Sun, Aug 30, 2015 at 08:30:41AM -0400, Josh Boyer wrote: > I think the offending commit is 776687bce42b ("block, blk-mq: draining > can't be skipped even if bypass_depth was non-zero"). It looks like > the patch makes shutdown path travel data structure which is already > destroyed. Will post the fix soon.
Hmm... I can't reproduce it here or see how such oops would happen.
* Is the problem reproducible on v4.2? If so, can you please describe the steps to reproduce? How is cgroup set up?
* Can you please run gdb or addr2line on it and report which line is causing the oops?
Thanks.
-- tejun
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