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Date: Thu, 10 Jan 2008 16:56:12 +0100 From: Matthew <jackdachef@...il.com> To: "Ingo Molnar" <mingo@...e.hu> Cc: "Ed Tomlinson" <edt@....ca>, "H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org, "Thomas Gleixner" <tglx@...utronix.de> Subject: Re: Fwd: Fwd: laptop / computer hardlocks during execution of 32bit applications(binaries) on 64bit system (Gentoo) > > My kernel is _not_ tainted. [...] > this time my kernel isn't tainted either (comm: thunderbird-bin Not tainted; http://kerneloftruth.neucode.org/other/crash_ia32_64/not_tainted/moto_0041.jpg) but still hardlocks: http://kerneloftruth.neucode.org/other/crash_ia32_64/not_tainted/ > ok, good. A series of questions: > > - can you reproduce it from the VGA console? > yes > - if yes, does booting with "nmi_watchdog=2 idle=poll" give you a > working NMI watchdog? (working NMI watchdog means the NMI counts > increase for all cores in /proc/interrupts). > no, I get err=-16 (watchdog is broken: cat /proc/interrupts | grep NMI reveals nothing) > if still 'yes', then try to reproduce the hard hang on the VGA text > console yes, despite broken watchdog steps: 1) startx 2) change to tty2, log in; DISPLAY:=0 thunderbird-bin 3) wait until it hardlocks known apps to trigger that locking: - realplayer - thunderbird-bin (2.0.0.9) - mozilla-firefox-bin (2.0.0.11) (all included in portage-tree) apps not triggering: - skype (not tested that thoroughly (yet)) - ... > - do you perhaps get an NMI backtrace printed within 1-2 minutes > after the hard hang happens? If yes then take a photo of that or write > it down. > only backtrace so far (once): http://kerneloftruth.neucode.org/other/crash_ia32_64/moto_0040.jpg I'll tar the whole kernel-directory & modules so that you'll be able to reproduce it more easily (if wanted), is there a place where I could upload it (it weighs around 300-400 MBs so that'll take some time ;) ) I got work to do so that'll be all for now, I hope you'll be able to find the culprit soon ... > Ingo > Mat -- 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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