>Number:         26204
>Category:       kern
>Synopsis:       if_txp doesn't work with 3com 3CR990B-FX, panics at boot time
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Jul 08 12:02:00 UTC 2004
>Closed-Date:
>Last-Modified:
>Originator:     Ignatios Souvatzis
>Release:        NetBSD 2.0_BETA
>Organization:
computer science department, university of Bonn, Germany
>Environment:
	
	
System: NetBSD sinus 2.0_BETA NetBSD 2.0_BETA (GENERIC) #9: Thu Jul 1 14:31:57 CEST 2004 ignatios@sinus:/usr/local/src/cur/oi/sys/arch/i386/compile/GENERIC i386
Architecture: i386
Machine: i386
>Description:
	At boot time, the if_txp driver fails to load the firmware into
	our 3com 3CR990B-FX cards. 
	Additionally, it does this after establish()ing the interupt handler,
	and doesn't disestablish it when the attach() failure is detected.
	At interupt enable time, an uninitialized pointer is accessed,
	causing a kernel panic.
>How-To-Repeat:
	add:
	device txp* at pci?....
	recompile, reboot.
>Fix:
	Fix: unknown.
	Workaround: sys/dev/pci/if_txp.c 1.7 disestablish()es the interupt
	handler, thus avoiding the kernel panic. (While the cards stays 
	unusable).
>Release-Note:
>Audit-Trail:
>Unformatted: