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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [SKL] guc submission is causing IGT tests timeout (igt/gem_ringfill)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=97978#c8">Comment # 8</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [SKL] guc submission is causing IGT tests timeout (igt/gem_ringfill)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=97978">bug 97978</a>
from <span class="vcard"><a class="email" href="mailto:michel.thierry@intel.com" title="Michel Thierry <michel.thierry@intel.com>"> <span class="fn">Michel Thierry</span></a>
</span></b>
<pre>If you have time, can you run this experiment?
1. grub parameters:
i915.enable_guc_loading=2 i915.enable_guc_submission=2 i915.guc_log_level=2
drm.debug=0xe
2. run these tests (stop if one of the tests already timeout):
gem_ringfill --run-subtest basic-default
gem_ringfill --run-subtest basic-default-interruptible
gem_ringfill --run-subtest basic-default-hang
gem_ringfill --run-subtest basic-default-forked
3. get these logs:
dmesg
cat /sys/kernel/debug/dri/0/i915_guc_log_dump > ~/guc_log_dump.log
cat /sys/kernel/debug/dri/0/i915_guc_info > ~/timeout_info.log
cat /sys/kernel/debug/dri/0/i915_gem_seqno >> ~/timeout_info.log
cat /sys/kernel/debug/dri/0/i915_gem_request >> ~/timeout_info.log
And attach those 3 files (dmesg, guc_log & timeout_info).
Thanks</pre>
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