Messages in this thread | | | Date | Thu, 24 Mar 2011 20:45:46 +0100 | From | Markus Trippelsdorf <> | Subject | Re: [GIT PULL] Core block IO bits for 2.6.39 - early Oops |
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On 2011.03.24 at 20:36 +0100, Jens Axboe wrote: > On 2011-03-24 20:34, Markus Trippelsdorf wrote: > > On 2011.03.24 at 19:58 +0100, Jens Axboe wrote: > >> On 2011-03-24 19:54, Markus Trippelsdorf wrote: > >>> On 2011.03.24 at 19:51 +0100, Jens Axboe wrote: > >>>> On 2011-03-24 19:36, Jens Axboe wrote: > >>>>> On 2011-03-24 19:30, Markus Trippelsdorf wrote: > >>>>>> On 2011.03.24 at 14:43 +0100, Jens Axboe wrote: > >>>>>>> > >>>>>>> This is the main pull request for the block IO layer and friends for > >>>>>>> 2.6.39. > >>>>>> > >>>>>> This merge results in an early oops on my system (amd64, xfs). > >>>>>> See the attached photo. > >>>>>> > >>>>> > >>>>> Auch. Can you ensure that you have CONFIG_DEBUGINFO=y in your .config > >>>>> and then do: > >>>>> > >>>>> $ gdb vmlinux > >>>>> ... > >>>>> l *cfq_insert_request+0x32 > >>>>> > >>>>> and send that output? > >>>> > >>>> I took a closer look at the oops, and it most likely looks like q == > >>>> NULL (offset 0x18 == q->elevator). You left out the Code part, so I > >>>> can't verify that for certain. Which makes very little sense. I take it > >>>> this is 100% reproducible? When you send the gdb output, please also > >>>> attach your .config. > >>> > >>> Yes, it's 100% reproducible here. My .config follows: > >> > >> Can you try this patch and see if it makes a difference? > > > > There's no patch ;-) > > Oh, here it is. > It doesn't help, unfortunately. I still get the same BUG at cfq_insert_request+0x32/0x4d0.
-- Markus
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