[Bug 88012] [bisected BYT] complete freeze after: 31685c258e0b0ad6aa486c5ec001382cf8a64212

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88012

--- Comment #11 from Juergen Froehler <openelec at froehler-moreno.de> ---
Created attachment 111842
  --> https://bugs.freedesktop.org/attachment.cgi?id=111842&action=edit
dmesg with i915.enable_rc6=0 (3.19.0-rc2-ickle1+)

Ok, here the result of the first test with i915.enable_rc6=0
I checked twice to be sure it was disabled
once in the dmesg:
[    2.626518] [drm] RC6 disabled, disabling runtime PM support
[  well it looks like the same as when I limit  3.799990]
[drm:intel_print_rc6_info] Enabling RC6 states: RC6 off

and once in the parameters:
/sys/module/i915/parameters/enable_rc6=0

Well it looks like as the same when I limit in the Bios the C State to C3.
There is a trace on the end of the attached Logfile and if I run an mkv it
freeze after some minutes.

the next test will be with intel_pstate=disable
actually the settings looks like:
for i in /sys/devices/system/cpu/intel_pstate/*; do echo $i=$(cat $i); done
/sys/devices/system/cpu/intel_pstate/max_perf_pct=100
/sys/devices/system/cpu/intel_pstate/min_perf_pct=100
/sys/devices/system/cpu/intel_pstate/no_turbo=0

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