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    SubjectRe: Machine crashes right *after* ~successful resume
    Hi!

    > Rafael, including you on this since http://linuxconcloudopenna2013.sched.org/event/d708f47d07cd44b9669610778c024708#.VDRzTDS_EUF
    > mentions you as the maintainer for Linux + power management. I hope this is
    > still accurate.
    >
    > Since Linux 3.12 (Debian version 3.12.9-1~bpo70+1) and all the way up to
    > 3.16 (Debian version 3.16.3-2), I'm having suspend-resume issues on my
    > machine (Intel Z68, i7-3770K) that are somewhat less obvious.
    >
    > After every boot, I get two successful suspend+resume cycles, but after the
    > third suspend, it won't resume successfully. On the VGA console I've never
    > had anything useful logged, luckily over the serial console I've had more
    > luck. I seem to get as far as:

    Has it ever worked ok? ...aha, in 3.10, ok.

    > I've found out about pm_trace, which always points at the same line (and no
    > device):
    >
    > /var/log/syslog.1:Oct 10 16:43:58 ruby kernel: [ 0.780503] Magic
    > number: 0:52:740
    > /var/log/syslog.1:Oct 10 16:43:58 ruby kernel: [ 0.780599] hash matches
    > /tmp/linux-3.16.3/drivers/base/power/main.c:812
    >
    > In my source tree that line is:
    >
    > TRACE_RESUME(error);


    if it resumes ok, this kind of tracking will not help.

    > With kernels 3.10 and older I have no such problems, I can suspend+resume as
    > often as I want.

    is there chance to bisect?

    > I've already tried to skip the NVidia + VMware modules at boot time (as you
    > can see from the logs they're not loaded at any point), but it didn't help.
    > I could try omitting more modules.

    Yes, try with minimal modules (and no s2ram) would be nice.

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


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