Re: [BUG] kernel BUG at arch/x86/kernel/tlb_32.c:130!

[Jaswinder Singh Rajput]

On Wed, 2009-01-21 at 08:44 +0800, Li Zefan wrote:
> >>> okay, a testsystem of mine just triggered this crash too.
> >>>
> >>> Li Zefan, Jaswinder, does the patch below fix it for you?
> >>>
> >> I'll test it, but I have to run for several hours to confirm it, since 
> >> the bug is not easy to trigger. :)
> > 
> > yes. It triggered on an old 32-bit dual-socket HyperThreading system for 
> > me and that is because HyperThreading is very good at triggering narrow 
> > SMP races. (which this one certainly is)
> > 
> > (I'd expect Nehalem to trigger this TLB flushing race more easily too, 
> > where HyperThreading made a comeback.)
> > 
> 
> Nothing bad happaned in the last 16+ hours. :)
> 
> Tested-by: Li Zefan <lizf@xxxxxxxxxxxxxx>
> 

And my HT machine is also happy with this patch :-)

--
JSR

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/