mtrash_ctor panic caused by ACPI and ATAng was Re:
Interrupts, ATAng, and wayward pointers, oh my!
Steve Kargl
sgk at troutmask.apl.washington.edu
Mon Feb 9 11:02:59 PST 2004
On Mon, Feb 09, 2004 at 10:10:26AM -0800, Doug White wrote:
> On Fri, 6 Feb 2004, Steve Kargl wrote:
>
> > Yes, intriguing. I used the better part of 1 day to eliminate
> > possibilities for the problem. I forgot to mention the problem
> > does not depend on APIC or no APIC support in the kernel.
> >
> > > > PS: No, I can't get a core dump because the disk subsystem isn't
> > > > ready for a dump when the panics occurred and I can't hook
> > > > up a serial console. I can panic the machine as needed.
> > >
> > > You can say 'set dumpdev=/dev/foo0s1b' in loader to set the dump target.
> > >
> >
> > This doesn't work unless I can get a near instantaneous dump. That is,
> > db> call dumpsys
> > returns in under a second. Revision 1.19 of ata-queue.c (note the
> > typo of ata-queue.h above) reworked the locking of ATA. I suspect
> > that my laptop is tickling some race that Soren hasn't seen.
>
> try 'call doadump()'
>
db> call doadump()
Dumping 511 MB
Dump failed. Partition too small.
0x23
/dev/ad0s3b is a 1 GB swap partition. I guess I'm going to
have to try to find a serial cable or simply run without ACPI.
--
Steve
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