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: Sat, 18 Aug 2018 21:36:03 +0000 [thread overview]
Message-ID: <bug-102322-502-E5JF2iPWLW@http.bugs.freedesktop.org/> (raw)
In-Reply-To: <bug-102322-502@http.bugs.freedesktop.org/>
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https://bugs.freedesktop.org/show_bug.cgi?id=102322
--- Comment #48 from dwagner <jb5sgc1n.nya@20mm.eu> ---
(In reply to Andrey Grodzovsky from comment #47)
> Created attachment 141174 [details] [review]
> add_debug_info.patch
>
> A am attaching a basic debug patch, please try to apply it.
Done.
> It should give a
> bit more info in dmesg whe VM fault happens.
Hmm - I could not see any additional output resulting from it.
> Reproduce again like before with the cmd-trace like before and once the
> fault happens if possible try quickly run
>
> sudo umr -O halt_waves -wa
>
> and only if you still have running system after that do the
> sudo umr -O verbose -R gfx[.]
>
> The driver should be loaded amdgpu.vm_fault_stop=2 from grub
Did that - will attach the script "gpu_debug3.sh" and its output - this time,
dmesg and trace output are in the same file, if you want to look only at the
dmesg part, "grep '^\[' gpu_debug_3.txt" will get it.
I reproduced the bug 4 times, on 2 occasions no error was emitted before
crashing, the 2 other times both umr commands could still run - since the error
message looked the same, I'll attach the shorter file, where the crash occurred
more quickly.
> Also check if adding amdgpu.vm_debug=1 makes the issue reproduce more quickly
I used that setting, but it did not seem to make a difference for how quickly
the crash occurred - still "some seconds to some minutes".
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next prev parent reply other threads:[~2018-08-18 21:36 UTC|newest]
Thread overview: 92+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-20 22:53 [Bug 102322] System crashes after "[drm] IP block:gmc_v8_0 is hung!" / [drm] IP block:sdma_v3_0 is hung! bugzilla-daemon
2017-11-19 16:40 ` bugzilla-daemon
2018-02-24 18:36 ` bugzilla-daemon
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