[Bug 111639] [CI][RESUME] igt at gem_vm_create@isolation - dmesg-warn - GEM_BUG_ON(!intel_context_is_pinned(ce))
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Wed Oct 16 10:47:23 UTC 2019
https://bugs.freedesktop.org/show_bug.cgi?id=111639
--- Comment #6 from Martin Peres <martin.peres at free.fr> ---
(In reply to Chris Wilson from comment #5)
> commit ae911b23d2f06c5d0a3e32768bedea857cadd269
> Author: Chris Wilson <chris at chris-wilson.co.uk>
> Date: Mon Sep 23 12:00:53 2019 +0100
>
> drm/i915/execlists: Relax assertion for a pinned context image on reset
>
> A gpu hang can occur at any time, given a sufficiently angry gpu. An
> example is when it forgets to perform a context-switch at the end of a
> request, leaving us with a hanging GPU on a completed request. Here, we
> may retire the request, only leaving its context alive via the active
> barrier. When we reset the GPU on a completed request, we do not modify
> its context image (just updating the ring state) and can safely defer
> the assertion that we have the image pinned and ready to modify.
>
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111639
> Fixes: dffa8feb3084 ("drm/i915/perf: Assert locking for
> i915_init_oa_perf_state()")
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Mika Kuoppala <mika.kuoppala at linux.intel.com>
> Reviewed-by: Mika Kuoppala <mika.kuoppala at linux.intel.com>
> Link:
> https://patchwork.freedesktop.org/patch/msgid/20190923110056.15176-1-
> chris at chris-wilson.co.uk
Thanks, this issue was seen twice on fi-tgl-u, two runs apart. Now it has not
been seen in 23 runs. Looks good!
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