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Date: Sun, 12 Oct 2014 16:30:25 +0200 From: Pavel Machek <pavel@....cz> To: Wilmer van der Gaast <wilmer@...st.net> Cc: rafael.j.wysocki@...el.com, linux-kernel@...r.kernel.org Subject: Re: 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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