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* [Bug 107950] Delayed freeze with DRI_PRIME=1 on Topaz
@ 2018-09-16 17:09 bugzilla-daemon
  2018-09-17 21:07 ` bugzilla-daemon
                   ` (10 more replies)
  0 siblings, 11 replies; 12+ messages in thread
From: bugzilla-daemon @ 2018-09-16 17:09 UTC (permalink / raw)
  To: dri-devel


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https://bugs.freedesktop.org/show_bug.cgi?id=107950

            Bug ID: 107950
           Summary: Delayed freeze with DRI_PRIME=1 on Topaz
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: nmset@netcourrier.com

Host : laptop with Kaveri iGPU and Topaz dGPU
kernel : 4.18.4
Xorg : 1.20.1
Mesa : 18.2.0


When running 'DRI_PRIME=1 glmark2', the systems hangs after about 60 seconds.
Must reboot wildly with the power button or magic sysrq, the latter may not
completely power off the laptop.

The iGPU is driven by radeon module, and the dGPU with amdgpu. No module
options, or the following options (amdgpu cik_support=0 si_support=1; radeon
cik_support=1 si_support=0) yield the same result.

I can't say it started with 4.18.4. It's observed on 4.19-rc2/3 also. This
never happened with older kernels.

No such event occurs when using the iGPU.

I cannot bisect, because the last crash badly corrupted the home partition, and
my home directory simply vanished after fsck recreated the ext4 journal. I
could recover from backup fortunately.

May be it's not related to amdgpu, but rather to Xorg, mesa or anything else. I
am reporting it here in case it could be amdgpu in such offloading context.

Regards.

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2018-09-16 17:09 [Bug 107950] Delayed freeze with DRI_PRIME=1 on Topaz bugzilla-daemon
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2018-09-18  9:44 ` bugzilla-daemon
2018-09-18 11:34 ` bugzilla-daemon
2018-09-19 19:07 ` bugzilla-daemon
2019-11-19  8:56 ` bugzilla-daemon

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