* Peter Zijlstra <pet...@infradead.org> wrote:
> On Wed, Oct 09, 2013 at 08:19:11PM +0800, Fengguang Wu wrote:
> > > > Fengguang, I do not think this will help, but just in case. Could you
> > > > show the result of
> > > >
> > > > $ kernel/task_work.s
> >
> > Update: I recompiled the kernel with gcc 4.4.7 and find it booting fine!
>
> > # 208 "/c/wfg/tip/arch/x86/include/asm/bitops.h" 1
> > bts $1, 8(%eax); setc %dl #,, c
>
> That compiler doesn't appear to have asm goto support, so we fall back
> to the code we already knew worked :-)
I'm using 4.7.2 with randconfig testing, which has asm goto support, and I
haven't seen this crash yet.
Unless my testing is off it might be a bug in GCC 4.8, or a pre-existing
bug gets exposed by GCC 4.8.
Thanks,
Ingo
--
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/
