kern/56760: System hangs at boot with adaptec 1542

[Jason Bacon]

>Number:         56760
>Category:       kern
>Synopsis:       System hangs at boot with adaptec 1542
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Sep 13 17:40:13 PDT 2003
>Closed-Date:
>Last-Modified:
>Originator:     Jason Bacon
>Release:        FreeBSD 5.1-RELEASE i386
>Organization:
Medical College of Wisconsin
>Environment:
System: FreeBSD smithers.neuro.mcw.edu 5.1-RELEASE FreeBSD 5.1-RELEASE #0: Thu Jun 5 02:55:42 GMT 2003 root at wv1u.btc.adaptec.com:/usr/obj/usr/src/sys/GENERIC i386

	ASUS P5A, BIOS 1011-beta, K6-2 500Mhz, Adaptec 1542 with default
	settings and otherwise.
>Description:
	After installing 5.1R with an Advansys PCI host adapter, tried
	replacing the adapter with an Adaptec 1542 and enabling aha
	by commenting out

	hint.aha.0.disabled="1"

	in /boot/device.hints.  System then hangs at boot while trying
	to probe adapter.o

	Waiting 15 seconds for SCSI devices to settle...
	(probe3:aha0:0:3:0) CCB 0xd43bf508 timed out
	aha0: aha_cmd: Timeout waiting for adapter idle
	ahainitmboxes: Init command failed.

	( Repeats with aha0:0:6:0, aha0:0:0:0 )

>How-To-Repeat:
	Should be able to repeat on a pristine 5.1R system.  This was the
	first major change following successful installation.
>Fix:
	Unknown.
>Release-Note:
>Audit-Trail:
>Unformatted: