Date: Wed, 18 Apr 2001 09:14:01 -0700 (PDT) From: John Baldwin <jhb@FreeBSD.org> To: Doug Rabson <dfr@nlsystems.com> Cc: dfr@FreeBSD.org, ia64@FreeBSD.org, John Baldwin <john@baldwin.cx> Subject: RE: Need some help w/ia64 :) Message-ID: <XFMail.010418091401.jhb@FreeBSD.org> In-Reply-To: <Pine.BSF.4.33.0104181533420.85481-100000@herring.nlsystems.com>
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On 18-Apr-01 Doug Rabson wrote:
> 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.
Cool, thanks!
--
John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/
PGP Key: http://www.baldwin.cx/~john/pgpkey.asc
"Power Users Use the Power to Serve!" - http://www.FreeBSD.org/
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