>>>>> "JFW" == John F Woods <jfw@jfwhome.funhouse.com> writes:


JFW> Which panic do you see?  The one I get goes something like this:
JFW> 	page fault trap, code=0
JFW> 	_free+0x1de	movl %edx,0xc(%eax)
JFW> 	free(f8664c60, 2b)
JFW> 	cluster_callback(f8c66ae8, 0)
JFW> 	biodone(...)
JFW> 	scsi_error(...)
JFW> 	sc_err1(...)
JFW> 	scsi_done(..)
JFW> 	aha_done(...)
JFW> 	ahaintr()

I have seen exactly this traceback on an i386/current system with an
AHA1540B, with only one hard disk drive, which is a seagate:

aha0 targ 0 lun 0: <SEAGATE, ST11200N, 9300> SCSI2 0/direct fixed
sd0 at scsibus0: 1005MB, 1872 cyl, 15 head, 73 sec, 512 bytes/sec

(the CD-ROM and tape on the bus were idle at the time of the failure)

JFW> This panic only happens once in a while though, usually while bringing the
JFW> system up.

I've seen it happen when I was doing some heavy I/O (compiling or some
such), after the system had been up a while.

==John