[Bug 60020] New: Resuming Dell Precision M70 crashes

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org]

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https://bugs.freedesktop.org/show_bug.cgi?id=60020

          Priority: medium
            Bug ID: 60020
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
           Summary: Resuming Dell Precision M70 crashes
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: rcbixler-0BtJm3PWb0s@public.gmane.org
          Hardware: x86 (IA32)
            Status: NEW
           Version: git
         Component: Driver/nouveau
           Product: xorg

Created attachment 73830
  --> https://bugs.freedesktop.org/attachment.cgi?id=73830&action=edit
dmesg output - first bootup

I am running Debian wheezy and I have found that, with the nouveau driver
loaded, suspend/resume results in a hung system.  Originally, I was using the
proprietary NVidia driver and suspend/resume worked with it.  However, I
switched to the Nouveau driver after I found that the system was unstable with
the NVidia driver while watching videos.  I have made sure that all traces of
the NVidia driver have been removed before reproducing the bug.  Except for
this problem, the Nouveau driver works well -- no more crashes while watching
videos.

I have also confirmed that suspend/resume works after I unload the nouveau
driver.  I use the following commands:

echo 0 > /sys/class/vtconsole/vtcon1/bind
rmmod nouveau
pm-suspend

I have also done a test of suspend/resume with Nouveau loaded after activating
pm_trace (i.e. echo 1 > /sys/power/pm_trace).  I attach a couple of "dmesg"
outputs.  The most interesting lines from the second "dmesg" command from
rebooting after the crash are the following:

[    0.726626] PM: Hibernation image not present or could not be loaded.
[    0.726635] registered taskstats version 1
[    0.727033]   Magic number: 0:56:725
[    0.727036]   hash matches drivers/base/power/main.c:571
[    0.727078] pci 0000:01:00.0: hash matches
[    0.727139] rtc_cmos 00:06: setting system clock to 1996-05-07 08:42:38 UTC
(831458558)

Complete "dmesg" output attached.

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