Re: 2.6.16-rc1-mm4 i386 atomic operations broken on SMP (in modulesat least)
From: Neil Brown
Date: Wed Feb 01 2006 - 20:48:37 EST
On Thursday February 2, jamagallon@xxxxxxx wrote:
> On Thu, 2 Feb 2006 12:19:22 +1100, Neil Brown <neilb@xxxxxxx> wrote:
>
> >
> > I've been testing md/raid in 2.6.16-rc1-mm4 on a dual Xeon with most
> > of the md personalities compiled as modules, and weird stuff if
> > happening.
> >
> > In particular I'm getting lots of
> >
> > BUG: atomic counter underflow at:
> >
> > reports in raid10 and raid5, which are modules.
> >
> >
>
> I also run this kernel (plus a couple patches) on a SATA raid5 setup, and
> had no problems. People throws and gets files via SMB/AFP, mainly.
>
> My box is dual PIII@933.
Is 'raid5' a module, or is it compiled in?
NeilBrown
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