On Sat, Oct 20, 2012 at 05:41:49PM +0000, Artem S. Tashkinov wrote: > On Oct 20, 2012, Borislav Petkov wrote: > > > Yeah, your kernel is tainted with a proprietary module (vbox*, etc). Can > > you reproduce your corruptions (this is what it looks like) without that > > module? > > Yes, I can reproduce this panic with zero proprietary/non-free modules loaded. > > The problem is the kernel doesn't even print a kernel panic - the > system just freezes completely - cursor in a text console stops blinking. > > I have no means to debug it using a serial console - what can I do?
Ok, here's what you can try: * You say this happens with google chrome. Does it happen if you use another browser: firefox, etc? * Can you build a 64-bit kernel and try the same with it? The 32-bit userspace should work in compat mode just fine. * Can you run memtest on your machine and check whether your DIMMs aren't generating ECC errors? Are your DIMMs ECC, btw? * What about netconsole? You only need another machine on the same network: Documentation/networking/netconsole.txt. * boot with "pause_on_oops=600" on the kernel command line to stop the machine for 600 secs after the first oops happens. Then try to make a photo of the screen. Make sure to disable X or to be on a text console so that you can see the oops. * Try enabling a bunch of debugging options in "Kernel hacking". More specifically, CONFIG_DETECT_HUNG_TASK CONFIG_DEBUG_PREEMPT CONFIG_DEBUG_SPINLOCK CONFIG_DEBUG_MUTEXES CONFIG_DEBUG_LOCK_ALLOC CONFIG_PROVE_LOCKING CONFIG_PROVE_RCU CONFIG_DEBUG_ATOMIC_SLEEP CONFIG_DEBUG_BUGVERBOSE CONFIG_DEBUG_INFO CONFIG_DEBUG_VM CONFIG_DEBUG_VIRTUAL CONFIG_DEBUG_MEMORY_INIT CONFIG_DEBUG_LIST CONFIG_X86_VERBOSE_BOOTUP CONFIG_DEBUG_RODATA ... I hope those should scream in case something goes awry. HTH. -- Regards/Gruss, Boris. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/