Bug#545517: Intel/KMS/suspend-to-disk bug still present on 2.6.34
Hi,
Today, I took time to find the old bug I submitted to see if some
progress occurs. It happens I missed the closing (and the archiving)
of the bug. Sorry for that. But it is not fixed, so I reopen it.
Since the introduction of KMS, suspend-to-disk never works reliably
on my laptop. Todays, it is so unstable that I do not try it. The
biggest problem is that, when it does not work, the session is restored
but (I think) memory corruption occurs. So the symptom can differ from
time to time.
My "classical" symptom is applications crashing or refusing to be
load (with a segv in libc when trying to run "ls" for example).
In these cases, I immediately hard-switch-off the laptop so that
in-memory corruption was not writen-back on disk (I had several
difficult fsck before I do that).
I'm not sure that this is related to KMS but it begins to occurs when
KMS has been introduced and (in the first time, I do not recheck recently),
I have no problems when I disabled KMS.
#534422 can be linked to this bug.
This bug is also reported to xorg:
https://bugs.freedesktop.org/show_bug.cgi?id=23836
Regards,
Vincent
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