[Bug 99942] [APL] GPU Hang during transcoding video

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99942

--- Comment #3 from edwardtseng <edwardtseng at qnap.com> ---
Hi Rodrigo:
I turn on the debug, and the kernel message is as followed:
7>[  486.419915] [drm:drm_ioctl] pid=30654, dev=0xe280, auth=1,
I915_GEM_SW_FINISH
<7>[  486.419917] [drm:drm_ioctl] pid=30654, dev=0xe280, auth=1,
I915_GEM_SW_FINISH
<7>[  486.419919] [drm:drm_ioctl] pid=30654, dev=0xe280, auth=1,
I915_GEM_EXECBUFFER2
<6>[  494.557219] [drm] GPU HANG: ecode 9:4:0xacdfbffd, in ffmpeg [30654],
reason: Hang on video enhancement ring, action: reset
<6>[  494.568355] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
<6>[  494.577563] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
6>[  494.586404] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
<6>[  494.596034] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
<6>[  494.604973] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[  494.611401] [drm:i915_reset_and_wakeup] resetting chip
5>[  494.611406] drm/i915: Resetting chip after gpu hang
<7>[  494.611425] [drm:drm_ioctl] pid=30654, dev=0xe280, auth=1,
I915_GEM_MADVISE
<7>[  494.616426] [drm:gen8_init_common_ring] Execlists enabled for render ring
<7>[  494.616442] [drm:gen8_init_common_ring] Execlists enabled for blitter
ring
<7>[  494.616454] [drm:gen8_init_common_ring] Execlists enabled for bsd ring
<7>[  494.616465] [drm:gen8_init_common_ring] Execlists enabled for video
enhancement ring
<7>[  494.616482] [drm:intel_guc_setup] GuC fw status: path
i915/kbl_guc_ver9_14.bin, fetch NONE, load NONE
<6>[  494.616484] [drm] GuC firmware load skipped
7>[  494.620724] [drm:drm_ioctl] pid=30654, dev=0xe280, auth=1,
DRM_IOCTL_GEM_CLOSE
<7>[  494.620728] [drm:drm_ioctl] pid=30654, dev=0xe280, auth=1,
DRM_IOCTL_GEM_CLOSE
<7>[  494.620732] [drm:drm_ioctl] pid=30654, dev=0xe280, auth=1,
DRM_IOCTL_GEM_CLOSE

PS. I cannot find /sys/kernel/debug/dri/0/i915_guc_load_status node.
Is there any debug option I need to setup?

Thank you!
Cheers,
Edward Tseng

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