Hi again!
I tried to boot into VGA mode with NMI watchdog=2. System loads OK,
nmi counter is increasing on both CPUs (procesor is HT), but
when I start to load the CPU (compiling kernel), system locks
without any message. Even blinking cursor disapears. I will
try to do netconsole loging, but I can't promise any results for today.
Rok
Ingo Molnar wrote:
>> I tried to recompile with those options enabled, kernel and linux
>> boots and loads fine, but after few minutes (if i try to recompile
>> kernel in console) the system locks completely (hard reset) without
>> any messages. Is there anything I can do, maybe console on serial
>> port? My new config is atached.
>
> yes, serial console (or netconsole) output would be useful, if you can
> solve that. Another way would be to boot with nmi_watchdog=2, do the
> kernel recompile in a VGA text console, and wait for the lockup to
> occur. Either you get some crash message to the text console
> immediately, or you should get the NMI watchdog print something within a
> minute or so. If neither happens you just get a blank hard lockup then
> the wedge is very deep ...
>
> (also make sure that the NMI counter in /proc/interrupts is increasing
> on all CPUs properly, with nmi_watchdog=2. If not all CPUs/cores are
> increasing their NMI counters once per second then the NMI watchdog wont
> be able to print out a stackdump.)
>
> Ingo
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