Subject: kern/4974: ISP driver needs better reset strategies
To: None <>
From: None <>
List: netbsd-bugs
Date: 02/11/1998 12:41:42
>Number:         4974
>Category:       kern
>Synopsis:       ISP driver needs better reset strategies
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    kern-bug-people (Kernel Bug People)
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Feb 11 12:50:03 1998
>Originator:     Matthew Mjacob
	Nasa Ames Reseach Center
>Release:        1.3
System: NetBSD 1.3_ALPHA NetBSD 1.3_ALPHA (MSS3) #0: Mon Jan 19 10:44:42 PST 1998 alpha

The reset recovery code for the ISP HBA adapter doesn't work very well.
        Jam up the ISP by powering off a disk on the ISP's SCSI bus while
        that disk is really active. Eventually a command will time out.
        The ISP driver will reset, but not cleanly or completely, sometimes
        leading to a panic: