[Bug 89959] [SKL]igt/gem_concurrent_blit subcase sporadically causes system hang and *ERROR* blitter: timed out waiting for forcewake ack to clear.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89959

--- Comment #3 from Ander Conselvan de Oliveira <conselvan2 at gmail.com> ---
(In reply to lu hua from comment #2)
> (In reply to Ander Conselvan de Oliveira from comment #1)
> > The dmesg output is truncated. Can you produce another one with the logs
> > leading to the issue?
> 
> I add drm.debug=0xe, console=tty0 and console=ttyS0,9600, get the dmesg. I
> retest it with these 3 parameters, get similar dmesg.
> Do you have any parameter can print dmesg as you expect?

Add loglevel=7 to the kernel command line.

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