mtrash_ctor panic caused by ACPI and ATAng was Re:Interrupts, ATAng, and wayward pointers, oh my!

[Doug White]

On Fri, 6 Feb 2004, Steve Kargl wrote:

> Via trial and error, I have determined that the above panic is
> caused by ACPI and ATAng.  This is a Dell 4150 laptop.  I can
> build a working kernel with sources checked out via cvsup with
> date=2004.01.30.19.00.00.  If I use a date of 2004.01.30.20.00.00,
> I retrieve only revision 1.203 of ata-all.c and revision 1.19 of
> ata-queue.h.  No other files are changed in sys/ and the resulting
> kernel produces the above panic.  Finally, if I set
> hint.acpi.0.disabled="1" in /boot/loader.conf.  The kernel that
> previously panicked will boot fine.

Intriguing.

> 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.

-- 
Doug White                    |  FreeBSD: The Power to Serve
dwhite at gumbysoft.com          |  www.FreeBSD.org