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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [CI][DRMTIP] igt@* - dmesg-warn - Delta way too big!"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111772#c10">Comment # 10</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [CI][DRMTIP] igt@* - dmesg-warn - Delta way too big!"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111772">bug 111772</a>
from <span class="vcard"><a class="email" href="mailto:matthew.d.roper@intel.com" title="Matt Roper <matthew.d.roper@intel.com>"> <span class="fn">Matt Roper</span></a>
</span></b>
<pre>All of the warnings here seem to arise following suspend-resume, which is a
known system clock issue on some platforms. The warning message itself
suggests a rememdy:
If you just came from a suspend/resume,
please switch to the trace global clock:
echo global > /sys/kernel/debug/tracing/trace_clock
or add trace_clock=global to the kernel command line
This isn't related to the graphics driver and is a platform-specific quirk, so
we should probably take the warning's advice and update the boot command line
for fi-cml-s to include the "trace_clock=global" to avoid hitting this.</pre>
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