Messages in this thread | | | Date | Fri, 1 Aug 2008 00:17:44 +0200 | From | Ingo Molnar <> | Subject | Re: [patch 0/9] x86, xsave: xsave/xrstor support |
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* Suresh Siddha <suresh.b.siddha@intel.com> wrote:
> On Thu, Jul 31, 2008 at 02:29:15PM -0700, Ingo Molnar wrote: > > > Ingo, 2.6.25, 2.6.26 also reboots randomly with this config on my > > > dual-socket system. > > > > hmmm .... > > > > a few guesses: perhaps I2C related (the randconfig turned on I2C bits)? > > Do you have any way (hw test-kit) to figure out where the reboot comes > > from - is it a triple fault caused by the kernel? Or some hardware > > event? > > Doh! I knew something was wrong with your randconfig :) > > # > # Watchdog Device Drivers > # > .... > > CONFIG_PC87413_WDT=y > CONFIG_60XX_WDT=y > # CONFIG_SBC8360_WDT is not set > CONFIG_CPU5_WDT=y > CONFIG_SMSC37B787_WDT=y > CONFIG_W83627HF_WDT=y > CONFIG_W83697HF_WDT=y > CONFIG_W83877F_WDT=y > CONFIG_W83977F_WDT=y > CONFIG_MACHZ_WDT=y > CONFIG_SBC_EPX_C3_WATCHDOG=y > > Kernel was enabling watchdog, with out the userspace having the > heartbeat daemon....
I never had function hw watchdog support on this box - so i guess the 2.6.27-rc1 kernel started supporting it - cool.
This was unfortunate timing i guess - when i removed xsave i didnt get the reboot :-/
> randconfig is really not a good way to test! I can't even ssh to the > box with this config (something else is missing in the config!)
it is a randconfig tailored to my testboxes, it might not work out of box on yours :-)
randconfig is an excellent way of testing kernels, that testbox can run strings of hundreds (sometimes thousands) of random kernels without hitting any kernel bug. I had to resolve a large number of real kernel bugs (and a handful of glitches like this hardware watchdog thing) to get so far though.
> Anyhow, with watchdog removed, it works just fine. (both xsave and > non-xsave kernels)
Great, thanks. I've re-integrated tip/x86/xsave into x86/master and have pushed out the result.
Ingo
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