* Linus Torvalds <torva...@linux-foundation.org> wrote:
> On Mon, Apr 6, 2015 at 12:08 PM, Sasha Levin <sasha.le...@oracle.com> wrote:
> >
> > Your patch just makes it hang in memset instead:
>
> So it's certainly a big memset (2GB or so: original count in RDX:
> 0x7e777000, and "%rcx << 6" is bytes left, so it has done about 85%
> of it), which is certainly going to be slow, but it shouldn't
> *hang*. [...]
Would be nice to see the actual kernel .config, as there's a few debug
features that can slow things down significantly, such as
CONFIG_KMEMCHECK=y or in some cases CONFIG_DEBUG_PAGEALLOC=y.
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/
