Date: Mon, 15 Mar 1999 10:43:06 -0500 (EST) From: Andrew Gallatin <gallatin@cs.duke.edu> To: Thomas Valentino Crimi <tcrimi+@andrew.cmu.edu> Cc: alpha@FreeBSD.ORG, paul@originative.co.uk Subject: Re: New bootblocks Message-ID: <14061.10536.602675.696939@grasshopper.cs.duke.edu> In-Reply-To: <EqvGOrO00Uw_0GbbM0@andrew.cmu.edu> References: <A6D02246E1ABD2119F5200C0F0303D10FE5A@octopus> <EqvGOrO00Uw_0GbbM0@andrew.cmu.edu>
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Thomas Valentino Crimi writes:
> Excerpts from FreeBSD-Alpha: 15-Mar-99 New bootblocks by
> paul@originative.co.uk
> > halt code = 2
> > kernel stack not valid halt
> > PC = 184ec
> >
>
>
> I had this same problem, too, making it worse was that I had played
> around with my boot.conf and guess what, unload was halting (in the
> older bootblocks, wasn't this recently fixed?)
>
> One good replacement to fixit disks I found was that the emergecy
> shell, while lacking ls (use echo *) did have ifconfig, ppp and
> mount_nfs if you happen to have a machine nearby to stick an alpha dist
> on for binaries. The way I got my machine to boot doens't seem like
> more than luck (replaced bootblocks and booted of an old kernel). Just
> wanted to share the fixit trick for all who may come to need it.
>
In addition to the bootblocks, there's also some breakage in revision
1.24 of kern/kern_lock.c which causes alphas to crash in strange
ways just after they print the copyright & before they size memory.
I've pointed this out to Julian, and he committed a fix last night.
Make sure that you have the latest revision of kern_lock.c. If, for
whatever reason, you cannot update your sources the fix was:
diff -u -b -B -c -r1.24 kern_lock.c
*** kern_lock.c 1999/03/12 03:09:29 1.24
--- kern_lock.c 1999/03/15 00:43:37
***************
*** 215,221 ****
* lock itself ).
*/
if (lkp->lk_lockholder != pid) {
! if (p->p_flag & P_DEADLKTREAT) {
error = acquire(
lkp,
extflags,
--- 215,221 ----
* lock itself ).
*/
if (lkp->lk_lockholder != pid) {
! if (p && (p->p_flag & P_DEADLKTREAT)) {
error = acquire(
lkp,
extflags,
Cheers,
Drew
------------------------------------------------------------------------------
Andrew Gallatin, Sr Systems Programmer http://www.cs.duke.edu/~gallatin
Duke University Email: gallatin@cs.duke.edu
Department of Computer Science Phone: (919) 660-6590
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