kernel panic after 5.2 RELEASE --> 5.2.1, DELL PE2650, SCSI (fwd)

[Alexandr Kovalenko]

Hello, Jason M. Leonard!

On Sun, Feb 22, 2004 at 03:30:30PM -0500, you wrote:

> > > Lachlan O'Dea wrote:
> > > > -----BEGIN PGP SIGNED MESSAGE-----
> > > > Hash: SHA1
> > > >
> > > > On 18 Feb 2004, at 10:41, Scott Long wrote:
> > > >
> > > >> Jason M. Leonard wrote:
> > > >>
> > > >>> Without seeing the actual SCSI errors it is hard to say, but I was
> > > >>> experiencing a very similar issue with my PE2650.  Disabling write
> > > >>> caching
> > > >>> on the RAID 1 container cleared it up.  I do not know if that is the
> > > >>> best
> > > >>> way to go about it, but this server had to be in production pronto, so I
> > > >>> was happy.
> > > >>> :Fuzz
> > > >>
> > > >>
> > > >> If there is any way that you could send me the errors that you were
> > > >> getting, I would appreciate it.
> 
> cvsup'd last night...

Try this patch:

http://www.FreeBSD.org/cgi/cvsweb.cgi/src/sys/dev/aac/aacvar.h.diff?&r1=1.36.2.0&r2=1.36.2.1&f=h

It didn't get commited to HEAD, and it is workaround, but it helped me
with the same PE2650.

> lorax.ldc.upenn.edu 5.2-CURRENT FreeBSD 5.2-CURRENT #0: Sun Feb 22
> 01:58:58 EST 2004     fuzz at lorax.ldc.upenn.edu:/usr/obj/usr/src/sys/LORAX
> i386
> 
> Today while doing a portupgrade the machine crashed.  This is what was on
> the console when I got there (copied by hand):
> 
> command 0xc5e280f8 not in queue, flags = 0x5, bit = 0x80
> 
> panic: command not in queue at line 534 in file
> /usr/src/sys/dev/aac/aacvar.h
> 
> cpuid = 1;
> 
> boot() called on cpu#1
> 
> syncing disks, buffers remaining... kernel trap 12 with interrupts
> disabled
> 
> fatal trap 12: page fault while in kernel mode
> cpuid=0; apic is = 00
> fault virtual address		= 0x24
> fault code			= supervisor read, page not present
> instruction pointer		= 0x8:0xc04de488
> stack pointer			= 0x10:0xe148dc68
> frame pointer			= 0x10:0xe148dc78
> code segment			= base 0x0, limit 0xfffff, type 0x1b
> 				= DPL 0, pres 1, def 32, gran 1
> processor eflags		= resume, IOPL = 0
> current process			= 65 (swi5:+)
> trap number			= 12

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