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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [BSW] System fail to enter S3 with system hang up after load i915 driver"
href="https://bugs.freedesktop.org/show_bug.cgi?id=84903#c4">Comment # 4</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [BSW] System fail to enter S3 with system hang up after load i915 driver"
href="https://bugs.freedesktop.org/show_bug.cgi?id=84903">bug 84903</a>
from <span class="vcard"><a class="email" href="mailto:ville.syrjala@linux.intel.com" title="Ville Syrjala <ville.syrjala@linux.intel.com>"> <span class="fn">Ville Syrjala</span></a>
</span></b>
<pre>(In reply to wendy.wang from <a href="show_bug.cgi?id=84903#c2">comment #2</a>)
<span class="quote">> Verified the git://gitorious.org/vsyrjala/linux.git chv_stuff_21 + attached
> patch, on BSW B1 with RVP FAB1 board,
> Appear below call trace when wake up S3, details pls refer to attached
> dmesg-S3.log file.
>
> [ 127.767593] Call Trace:
> [ 127.767603] [<ffffffff81715d26>] ? dump_stack+0x41/0x51
> [ 127.767609] [<ffffffff810373c0>] ? warn_slowpath_common+0x6f/0x84
> [ 127.767636] [<ffffffffa007970d>] ? intel_gen6_powersave_work+0xf7/0xe9f
> [i915]
> [ 127.767663] [<ffffffffa007970d>] ? intel_gen6_powersave_work+0xf7/0xe9f
> [i915]
> [ 127.767669] [<ffffffff810469a6>] ? process_one_work+0x19f/0x2a8
> [ 127.767672] [<ffffffff810472e2>] ? worker_thread+0x278/0x364
> [ 127.767676] [<ffffffff8104706a>] ? rescuer_thread+0x219/0x219
> [ 127.767681] [<ffffffff8104a7ef>] ? kthread+0xca/0xd2
> [ 127.767685] [<ffffffff8104a725>] ? kthread_create_on_node+0x162/0x162
> [ 127.767690] [<ffffffff8171b4ec>] ? ret_from_fork+0x7c/0xb0
> [ 127.767694] [<ffffffff8104a725>] ? kthread_create_on_node+0x162/0x162</span >
That looks to to be a BIOS bug to me:
"PCBR offset : 0x0"
The BIOS is in charge of setting up the power context, so I believe it should
also restore the address on resume.</pre>
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