[Bug 111772] [CI][DRMTIP] igt@* - dmesg-warn - Delta way too big!
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Sat Oct 5 01:03:17 UTC 2019
https://bugs.freedesktop.org/show_bug.cgi?id=111772
Matt Roper <matthew.d.roper at intel.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|not set |low
Severity|not set |minor
CC| |matthew.d.roper at intel.com
--- Comment #17 from Matt Roper <matthew.d.roper at intel.com> ---
(In reply to Lakshmi from comment #11)
> (In reply to Matt Roper from comment #10)
> > 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.
>
> @Matt, How about Bug 111883? Above comment is valid for bug 111883 as well?
>
> @Tomi, Need your help in fixing this bug.
Yes, thanks for pointing that one out. It looks like the same platform clock
problem is present on that snb platform. I can't verify for sure that that
machine doesn't already have the trace_clock option on the kernel command line
since the boot.txt link over there is broken, but assuming it doesn't we should
also add it to that machine.
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