dc(4) related misalignment trap

John Baldwin jhb at freebsd.org
Mon Nov 21 13:51:42 PST 2005


On Monday 21 November 2005 04:23 pm, John Baldwin wrote:
> On Monday 21 November 2005 04:14 pm, John Baldwin wrote:
> > On Monday 21 November 2005 09:49 am, John Baldwin wrote:
> > > > Register s3 holds the sp variable ($2 in kgdb)
> > > > Register t0 holds the result the left-hand side of the statement,
> > > > which is not properly aligned for a 16-bit load ($7 = register t0 +
> > > > 8).
> > > >
> > > > Rough patch to fix the problem attached:
> > >
> > > I think de(4) would need the same fix as well at least.
> >
> > Once I fixed another bug with de(4) due to ru@'s recent changes I wasn't
> > able to reproduce an alignment trap with de(4) on my alpha, so although I
> > have a patch for de(4) I can't test it.  How are you triggering the
> > alignment fault? Do you have something other than 'ifconfig_dc0="DHCP"'
> > in /etc/rc.conf?
>
> Check that, it would help to let the multiuser boot finish before firing
> off the e-mail.  I did indeed get the alignment fault during dhcp, so I'll
> be testing that alignment patch in a minute or so.

Ok, so the same change Marcel posted for dc(4) fixed de(4) as well, so Marcel, 
I think you should be good to go to commit your dc(4) patch.

-- 
John Baldwin <jhb at FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org


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