[Bug 88875] [HSW/BDW]S4 resume cause reboot sporadically.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88875

Imre Deak <imre.deak at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |RESOLVED
         Resolution|---                         |NOTOURBUG

--- Comment #4 from Imre Deak <imre.deak at intel.com> ---
(In reply to Ding Heng from comment #3)
> (In reply to Imre Deak from comment #2)
> > As usual for suspend/resume issues, could you check if this can be
> > reproduced when booting with the nomodeset kernel parameter?
> 
> root at x-bdw05:~# cat /proc/cmdline
> BOOT_IMAGE=kernels//nightly_parents/2015_02_06/drm-intel-nightly/
> 75ce8af7223f8b8554e2566d0c48d9fb844f0e3e/bzImage_x86_64 root=/dev/sda3
> drm.debug=0xe i915.modeset=0 hostname=x-bdw05
> modules_path=kernels//nightly_parents/2015_02_06/drm-intel-nightly/
> 75ce8af7223f8b8554e2566d0c48d9fb844f0e3e/modules_x86_64/lib/modules/3.19.0-
> rc7_drm-intel-nightly_75ce8a_20150206+ acpi_rsdp=0xac7e1014
> 
> i915.modeset was set to 0. issue still exist.

Ok, so this is not our bug (at least at this point). I suggest opening a bug at
bugzilla.kernel.org under the Power Management component, attaching a dmesg log
taken with the initcall_debug kernel parameter and using serial or net console.
If possible you could try narrowing down the issue by disabling drivers,
starting perhaps with the one initcall_debug shows as a culprit. If you manage
to get the dmesg log, you could also send a report to lkml referencing this and
the bugzilla.kernel.org bugzilla ticket.

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