Re: strange guest slowness after some time

[Tomasz Chmielewski <mangoo@wpkg.org>]

Tomasz Chmielewski schrieb:
> Tomasz Chmielewski schrieb:
> 
>> Sorry, both machines run Debian Lenny and 2.6.26 kernel.
>> The only difference is that machine which crashes (with MTU=100) or 
>> locks up (with MTU=1500) runs a "2.6.26-1-686" kernel and the one 
>> which doesn't lock up runs "2.6.26-1-486" kernel (both are Debian's 
>> kernels).
> 
> Some more tries and I got this one. Serial console died, but SSH is 
> still working.
> 
> Note the "S" tainted flag.
> According to Documentation/oops-tracing.txt, it means:
> 
>  3: 'S' if the oops occurred on an SMP kernel running on hardware that
>     hasn't been certified as safe to run multiprocessor.
>     Currently this occurs only on various Athlons that are not
>     SMP capable.
> 
> 
> And this is a difference between "2.6.26-1-686" and "2.6.26-1-486" kernels.
> 
> # grep -i smp /boot/config-2.6.26-1-686
> CONFIG_X86_SMP=y
> CONFIG_X86_32_SMP=y
> CONFIG_SMP=y
> 
> 
> # grep -i smp /boot/config-2.6.26-1-486
> CONFIG_BROKEN_ON_SMP=y
> # CONFIG_SMP is not set

BTW, it was the machine with /boot/config-2.6.26-1-486 kernel (non-SMP) 
which got slow for me today.


-- 
Tomasz Chmielewski
http://wpkg.org