Re: 2.6.17-rc5-mm1-lockdep: a rather strange oops

[Andrew Morton <akpm@osdl.org>]

On Wed, 31 May 2006 19:47:10 -0700
"Barry K. Nathan" <barryn@pobox.com> wrote:

> On 5/31/06, Andrew Morton <akpm@osdl.org> wrote:
> > The original oops was a jump-to-null.  I had a few of those when getting
> > the latest git-libata-all tree working, due to missing
> > ata_port_operations.data_xfer vectors.  But it appears that both sata_sil.c
> > and sata_promise.c do have those filled in.
> 
> Ah, but pata_pdc2027x.c doesn't. (Oh, by the way, neither does sata_sil24.c.)
> 
> I tried filling it in, with the following patch, but booting that gave
> me lots of weird output before the kernel finally failed to boot from
> the root device. "Lots" meaning, enough that I think I'll need a
> serial console to get anything meaningful. I didn't see any oopses;
> rather, it seemed like the driver was misbehaving. I don't know
> whether the fault is in my patch, or elsewhere in the pdc2027x driver.
> I don't have time tonight (or probably this week, for that matter) to
> look into this further.
> 
> As a reminder (in case anyone else jumps into this thread in the
> future), 2.6.17-rc4-mm3 works perfectly...

Right, thanks.  I'll drop the ata tree.  I have no idea what they were
thinking of, checking in that stuff.