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Re: __blkg_lookup oops with 4.2-rcX

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On Fri, Sep 04, 2015 at 01:13:02PM -0400, Tejun Heo wrote:
> The only struct which is large enough for 0xbb8 offset is
> request_queue.  Hmm.... can you please try the brute force debug patch
> below and report the kernel log after the crash?

So the good(?) news is this bug is not reproducible with the Fedora
kernel 4.3.0-0.rc0.git7.1.fc24.x86_64 (tested both with and without
your patch).

I'll keep it running overnight just in case ..

Rich.

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Thread

__blkg_lookup oops with 4.2-rcX Josh Boyer <jwboyer@fedoraproject.org> - 2015-08-30 14:40 +0200
  Re: __blkg_lookup oops with 4.2-rcX "Richard W.M. Jones" <rjones@redhat.com> - 2015-08-30 20:10 +0200
  Re: __blkg_lookup oops with 4.2-rcX Tejun Heo <tj@kernel.org> - 2015-09-02 17:00 +0200
    Re: __blkg_lookup oops with 4.2-rcX Tejun Heo <tj@kernel.org> - 2015-09-02 17:40 +0200
      Re: __blkg_lookup oops with 4.2-rcX "Richard W.M. Jones" <rjones@redhat.com> - 2015-09-04 12:50 +0200
        Re: __blkg_lookup oops with 4.2-rcX Tejun Heo <tj@kernel.org> - 2015-09-04 19:20 +0200
          Re: __blkg_lookup oops with 4.2-rcX "Richard W.M. Jones" <rjones@redhat.com> - 2015-09-04 22:50 +0200
            Re: __blkg_lookup oops with 4.2-rcX "Richard W.M. Jones" <rjones@redhat.com> - 2015-09-05 17:50 +0200
              Re: __blkg_lookup oops with 4.2-rcX Tejun Heo <tj@kernel.org> - 2015-09-05 20:40 +0200
                [PATCH block/for-linus] block: blkg_destroy_all() should clear  q->root_blkg and ->root_rl.blkg Tejun Heo <tj@kernel.org> - 2015-09-05 21:50 +0200
                Re: [PATCH block/for-linus] block: blkg_destroy_all() should clear  q->root_blkg and ->root_rl.blkg "Richard W.M. Jones" <rjones@redhat.com> - 2015-09-06 10:40 +0200

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