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Date: Wed, 27 Nov 2002 21:24:42 +0100
From: Rasmus Andersen <rasmus@jaquet.dk>
To: Andrew Morton <akpm@digeo.com>
Cc: lkml <linux-kernel@vger.kernel.org>, linux-mm@kvack.org
Subject: Re: 2.5.49-mm2
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References: <3DE48C4A.98979F0C@digeo.com> <20021127210153.A8411@jaquet.dk> <3DE526FC.3D78DB54@digeo.com>
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On Wed, Nov 27, 2002 at 12:11:40PM -0800, Andrew Morton wrote:
> > Debug: Sleeping function called from illegal context at include/
> > linux/rwsem.h:66
> > Call Trace: __might_sleep+0x54/0x58
> >            sys_mprotect+0x97/0x22b
> >            syscall_call+0x7/0xb
>=20
> Oh that's cute.  Looks like we've accidentally disabled preemption
> somewhere...
>=20
> > Unable to handle kernel paging request at virtual address 4001360c
>=20
> And once you do that, the pagefault handler won't handle pagefaults.
> =20
> > (I did not copy the rest but can reproduce at will.)
>=20
> Please do.  And tell how you're making it happen.

I'm booting my debian testing system, going into kdm.
Various versions as per my last mail.

Does your 'Please do' mean that you would like the rest of
oops?

> Is that .config still current?

The .config used for -mm2 is at www.jaquet.dk/kernel/config-2.5.49-mm2

> Does it go away if you turn off preemption?

I'll test that right away.

Regards,=20
  Rasmus

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