Date: Wed, 18 Apr 2001 15:35:26 +0100 (BST) From: Doug Rabson <dfr@nlsystems.com> To: John Baldwin <john@baldwin.cx> Cc: John Baldwin <jhb@FreeBSD.ORG>, <ia64@FreeBSD.ORG>, <dfr@FreeBSD.ORG> Subject: RE: Need some help w/ia64 :) Message-ID: <Pine.BSF.4.33.0104181533420.85481-100000@herring.nlsystems.com> In-Reply-To: <XFMail.010413164603.john@baldwin.cx>
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On Fri, 13 Apr 2001, John Baldwin wrote:
>
> On 13-Apr-01 John Baldwin wrote:
> > At the moment ia64 kernels on -current panic in the pmap code. I'd like to
> > get
> > a backtrace in ddb, but I can't seem to be able to send input to the console.
> > I was curious if that worked at all or is known to be broken. I also recall
> > Dough saying that ski engaged in some Linux stupidness with respect to the
> > tty's that he had to work around. Unfortunately, I can't seem to find an
> > e-mail with the actual workaround in it, so I'd appreciate any pointers
> > people
> > have. Also, I've noticed that once I start the kernel going, ski is
> > basically
> > unresponsive after the kernel panics. None of the windows update if I move
> > them around, no mouse events, etc. Also, if anyone knows how to fix this
> > panic
> > (dmesg below) that would be great as well. :)
>
> Well, I've managed to do enough quirky things to kick the console into a usable
> mode, but trying to do a 'trace' gives a SSC breakpoint. At this point I
> checked the code to discover:
>
> void
> db_stack_trace_cmd(db_expr_t addr, boolean_t have_addr, db_expr_t count, char *m
> odif)
> {
> }
>
> Hmm, guess that still needs to be implemented. :-P
I just committed something. The linux bootloader doesn't load symbols (big
surprise) but you can make pretty good sense of the stack frame. I might
even be able to figure out how to print the arguments too.
--
Doug Rabson Mail: dfr@nlsystems.com
Phone: +44 20 8348 6160
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