Subject: port-amiga/2649: A3000 hangs when attaching HP Scanjet IIcx
To: None <gnats-bugs@NetBSD.ORG>
From: Ignatios Souvatzis <is@beverly.rhein.de>
List: netbsd-bugs
Date: 07/23/1996 08:51:10
>Number:         2649
>Category:       port-amiga
>Synopsis:       A3000 hangs when attaching HP Scanjet IIcx
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    gnats-admin (GNATS administrator)
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Jul 23 03:05:04 1996
>Last-Modified:
>Originator:     Ignatios Souvatzis
>Organization:
>Release:        1.2_BETA
>Environment:
	
System: NetBSD beverly.rhein.de 1.2_BETA NetBSD 1.2_BETA (GENERIC) #42: Sun Jul 14 14:34:45 MET DST 1996 is@jocelyn.rhein.de:/bulk/s2/src/sys/arch/amiga/compile/GENERIC amiga


>Description:
	My A3000 hangs when attaching to a HP Scanjet II cx.
	This happens right after the string "scan0: HP ScanJet IIcx" is
	printed to the console. The SCSI bus busy LED stays lighted.

	Yes, the SCSI bus was properly terminated. The same scanner works
	fine with NetBSD-1.2_BETA on a i486 machine it is normally connected
	to via an Adaptec 2940 interface.

	I booted into the debugger and tried to toggle several of the sbic.c
	switches (sbic_enable_reselect=0, sbic_no_dma=1,
	sbic_parallel_operations=0), without any change in behaviour.

	I guess I'm a victim of the remaining 1% of bugs in the Amiga sbic.c
	driver after the last big change just before -1.1.

	Note that there is another report (although not as a formal PR to us)
	from neil@crash.drempel.org.uk (Neil Brewitt). He tried to use a 
	MUSTEK 6000 with an A3000. His scenario is a bit different: The machine
	survives the auto-configure period, then any process trying to talk
	to the Mustek hangs in "disk wait" (D).

>How-To-Repeat:
	Connect HP Scanjet to built-in SCSI interface; reboot.
>Fix:
	Fix: not known.
	Workaround: switch scanner off before booting and don't use it.
>Audit-Trail:
>Unformatted: