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SubjectRe: Corrupted files after suspend to disk
Rafael J. Wysocki schrieb:
> On Tuesday, March 13, 2012, Andreas Hartmann wrote:
>> Dave Jones wrote:
>>> On Mon, Mar 12, 2012 at 02:24:00PM +0100, Andreas Hartmann wrote:
>>>
>>> > >>>>> This is happening to me as well. Something like 1 resume out of 5 goes
>>> > >>>>> wrong this very same way.
>>> > >>>>>
>>> > >>>>> This is thinkpad x200s.
>>> > >>>>>
>>> > >>>>> All the userspace is segfaulting all over the place (most frequently in
>>> > >>>>> libselinux for some reason).
>>> > >>>>>
>>> > >>>>> I am not able to verify the 'drop_caches' theory, as I can't invoke a
>>> > >>>>> single command that wouldn't crash.
>>> > >>>>
>>> > >>>> The question is how should we proceed?
>>> > >>>> I've reported this issue one year (!!!) ago.
>>> > >>>
>>> > >>> Hmm, 3.3-rcX seems to be the first version when it started to happen to
>>> > >>> me. I take it that you have seen this also with 3.2? 3.1?
>>> > >>
>>> > >> Quote from my very first email:
>>> > >> "I'm facing a very strange problem on my netbook (Lenovo Ideapad S10)
>>> > >> running Linux 2.6.37.4."
>>> > >
>>> > > So we both seem to have Lenovos at least. I thus wanted to verify whether
>>> > > the problem will trigger with thinkpad_acpi removed, but it oopsed while
>>> > > rmmoding :) I will start looking into this right away.
>>> > >
>>> > > Is your system using thinkpad_acpi as well?
>>> >
>>> > I dont't think, that it is lenovo related as I'm having a MSI machine.
>>> >
>>> > https://bugzilla.novell.com/show_bug.cgi?id=732908
>>> >
>>> > Following the link, you are able to compare the used chips - maybe there
>>> > are some equal components?
>>>
>>> This looks like the i915 corruption problem mentioned in a few other threads.
>>>
>>> if you compare the hexdump of the good/bad files, you find that the corruption
>>> happens in 8x 4 byte writes of either 0x00000000 or 0x00aaaaaa.
>>>
>>> KeithP clued me in last week that that looks like an ARGB pixel quad, so these
>>> writes are likely 8 pixel strips.
>>
>> Thanks Dave. I disabled i915 (with nomodeset) and voila, the problem
>> disappears. As I already know, that the problem isn't X-related (I saw
>> it even without any X involved, only with runlevel 3 and nothing more),
>> the problem seems to be now narrowed down to the relevant component.
>
> I wonder what's the kernel command line you can reproduce the problem with?

It's the standard kernel command line of openSUSE:
root=/dev/system/root resume=/dev/system/swap splash=silent quiet vga=791 3

I added a complete dmesg output to
https://bugzilla.novell.com/show_bug.cgi?id=732908


Regards,
Andreas Hartmann


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