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    SubjectRe: Machine crashes right *after* ~successful resume
    On Mon 2014-10-27 10:50:04, Wilmer van der Gaast wrote:
    > Hello Yinghai,
    >
    > Thanks again for your time!
    >
    > I've applied your two patches, and as a wild guess also added pci=dump to my
    > kernel cmdline though I guess that just gave me a boot-time dump - which
    > mostly didn't make it into my dmesg.
    >
    > I accidentally booted with no_console_suspend on the first run, which still
    > caused no output at all on the failed resume. I'm including the output of
    > that anyway, but also I have a run with that flag removed, and annoyingly
    > the crash appears to happen before the dump during the crash finishes -
    > while dumping info for this device, it seems:
    >
    > 04:00.0 PCI bridge: Integrated Technology Express, Inc. Device 8892 (rev 10)
    > (prog-if 01 [Subtractive decode])
    >
    > (More info in my lspci.txt)
    >
    > Wondering what device that is exactly, I stumbled upon
    > http://sourceforge.net/p/linux1394/mailman/message/29755048/ where someone
    > describes it as a "cheap and crappy PCI bridge". More and more I wonder if I
    > should just buy a new motherboard - sadly this one wasn't even that
    > cheap.

    It is probably not just you that is affected, and we already know what
    change broke it. So we really should fix it.

    > :-( Though I don't know if the output stopping while dumping output for this
    > device means that it is the culprit, is printk() to the serial console in
    > any way blocking/buffered?

    --
    (english) http://www.livejournal.com/~pavelmachek
    (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html


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