Date: Mon, 9 Feb 2004 11:02:58 -0800 From: Steve Kargl <sgk@troutmask.apl.washington.edu> To: Doug White <dwhite@gumbysoft.com> Cc: freebsd-current@freebsd.org Subject: Re: mtrash_ctor panic caused by ACPI and ATAng was Re: Interrupts, ATAng, and wayward pointers, oh my! Message-ID: <20040209190258.GA45929@troutmask.apl.washington.edu> In-Reply-To: <20040209100947.K47197@carver.gumbysoft.com> References: <20040205231737.GB17451@troutmask.apl.washington.edu> <20040206231933.GA25826@troutmask.apl.washington.edu> <20040206224459.G20729@carver.gumbysoft.com> <20040207070653.GA28676@troutmask.apl.washington.edu> <20040209100947.K47197@carver.gumbysoft.com>
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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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