[Bug 102322] System crashes after "[drm] IP block:gmc_v8_0 is hung!" / [drm] IP block:sdma_v3_0 is hung! - bugzilla-daemon

From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 102322] System crashes after "[drm] IP block:gmc_v8_0 is hung!" / [drm] IP block:sdma_v3_0 is hung!
Date: Sun, 20 Aug 2017 22:53:09 +0000	[thread overview]
Message-ID: <bug-102322-502@http.bugs.freedesktop.org/> (raw)

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https://bugs.freedesktop.org/show_bug.cgi?id=102322

            Bug ID: 102322
           Summary: System crashes after "[drm] IP block:gmc_v8_0 is
                    hung!" / [drm] IP block:sdma_v3_0 is hung!
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: jb5sgc1n.nya@20mm.eu

I consistently experience complete system crashes when browsing web pages using
firefox for about 30 minutes, with the following dmesg output from the amdgpu
driver:

[ 2330.720711] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring sdma0 timeout,
last signaled seq=40778, last emitted seq=40780
[ 2330.720768] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring sdma1 timeout,
last signaled seq=31305, last emitted seq=31306
[ 2330.720771] [drm] IP block:gmc_v8_0 is hung!
[ 2330.720774] [drm] IP block:gmc_v8_0 is hung!
[ 2330.720775] [drm] IP block:sdma_v3_0 is hung!
[ 2330.720778] [drm] IP block:sdma_v3_0 is hung!

(Above cited messages are the last to make it to a network-filesystem by
running "dmesg -w" before the system stops to do anything.)

I am running a kernel compiled from
https://cgit.freedesktop.org/~agd5f/linux/log/?h=amd-staging-drm-next as of
"commit 94097b0f7f1bfa54b3b1f8b0d74bbd271a0564e4" (so the very latest as of
today).
My GPU is an RX 460.

Notice that this bug may be the same symptom as reported in
https://bugs.freedesktop.org/show_bug.cgi?id=98874

However, the system crashes for me occur usually while vertically scrolling
through some (ordinary) web page.

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