Messages in this thread |  | | Date | Fri, 18 Jan 2013 10:38:25 -0700 | Subject | Re: linux 3.8-rc3 reboot and shutdown | From | Shuah Khan <> |
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On Thu, Jan 17, 2013 at 7:55 PM, Shuah Khan <shuahkhan@gmail.com> wrote: > On Thu, Jan 17, 2013 at 5:35 PM, Deucher, Alexander > <Alexander.Deucher@amd.com> wrote: >>> -----Original Message----- >>> From: Shuah Khan [mailto:shuahkhan@gmail.com] >>> Sent: Thursday, January 17, 2013 7:26 PM >>> To: Deucher, Alexander >>> Cc: jglisse@redhat.com; linux-kernel@vger.kernel.org >>> Subject: Re: linux 3.8-rc3 reboot and shutdown >>> >>> On Thu, Jan 17, 2013 at 4:48 PM, Deucher, Alexander >>> <Alexander.Deucher@amd.com> wrote: >>> >> -----Original Message----- >>> >> From: Shuah Khan [mailto:shuahkhan@gmail.com] >>> >> Sent: Thursday, January 17, 2013 6:21 PM >>> >> To: Deucher, Alexander >>> >> Cc: jglisse@redhat.com; linux-kernel@vger.kernel.org >>> >> Subject: Re: linux 3.8-rc3 reboot and shutdown >>> >> >>> >> On Thu, Jan 17, 2013 at 12:45 PM, Deucher, Alexander >>> >> <Alexander.Deucher@amd.com> wrote: >>> >> >> -----Original Message----- >>> >> >> From: Shuah Khan [mailto:shuahkhan@gmail.com] >>> >> >> Sent: Thursday, January 17, 2013 2:03 PM >>> >> >> To: jglisse@redhat.com; Deucher, Alexander >>> >> >> Cc: linux-kernel@vger.kernel.org; Shuah Khan >>> >> >> Subject: linux 3.8-rc3 reboot and shutdown >>> >> >> >>> >> >> Alex, >>> >> >> >>> >> >> I started seeing hang during shutdown and reboot on my laptop that >>> has >>> >> >> ATI radeon VGA. >>> >> >> >>> >> >> 01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] >>> nee >>> >> >> ATI RV620 [Mobility Radeon HD 3400 Series] (prog-if 00 [VGA >>> >> >> controller]) >>> >> >> >>> >> >> My bisect narrowed it to the following commit. >>> >> > >>> >> > Should be fixed by this commit: >>> >> > http://cgit.freedesktop.org/~agd5f/linux/commit/?h=drm-fixes- >>> >> 3.8&id=19fc42ed9950d5fe17089c0a928121047c882092 >>> >> > Which should be finding its way upstream any day now. >>> >> > >>> >> > Alex >>> >> > >>> >> >>> >> Alex, >>> >> >>> >> Applied this patch on 3.8-rc3 and tested it. reboot still hung. The >>> >> only thing that fixes the problem is reverting >>> >> 71e3d1578c954cf29f1f4db1c8930d3574025eb0 >>> > >>> > Does the attached patch applied in addition to: >>> > http://cgit.freedesktop.org/~agd5f/linux/commit/?h=drm-fixes- >>> 3.8&id=19fc42ed9950d5fe17089c0a928121047c882092 >>> > fix the issue? >>> > >>> > Alex >>> >>> No reboot still hung after applying >>> 0001-drm-radeon-don-t-attempt-to-soft-reset-DMA-ring-on-r.patch in >>> addition to 19fc42ed9950d5fe17089c0a928121047c882092 >> >> Can you send me the dmesg from the failed reboot? >> >> Alex > > dmesg from good and bad attached. The good one is the one I bisected > and the bad one is the kernel with > 0001-drm-radeon-don-t-attempt-to-soft-reset-DMA-ring-on-r.patch in > addition to 19fc42ed9950d5fe17089c0a928121047c882092 > > You will notice that both have DMAR faults. > [ 18.357712] DMAR:[fault reason 06] PTE Read access is not set > [ 18.357730] dmar: DRHD: handling fault status reg 3 > [ 18.357734] dmar: DMAR:[DMA Read] Request device [01:00.0] fault > addr 80006000 > > I haven't gotten a chance to bisect the DMAR problem. Will try to get > to it tomorrow. >
Alex,
I no longer see reboot/shutdown hang on linux 3.8-rc4. I still see DMAR errors. Working on bisecting that one.
-- Shuah
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