bin/139989: atacontrol freezes the system

[Christophe Carré]

>Number:         139989
>Category:       bin
>Synopsis:       atacontrol freezes the system
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Oct 26 15:40:00 UTC 2009
>Closed-Date:
>Last-Modified:
>Originator:     Christophe Carré
>Release:        8.0-RC1
>Organization:
NETASQ
>Environment:
FreeBSD testRaid 8.0-RC1 FreeBSD 8.0-RC1 #0: Thu Sep 17 17:32:33 UTC 2009     root at testRaid:/usr/obj/usr/src/sys/GENERIC  i386
>Description:
Two SATA drives are used with gmirror to do mirroring.
When I stress atacontrol with attach and detach, my system freezes and I can just reboot the machine.
The problem occure during atacontrol detach or atacontrol attach.
>How-To-Repeat:
while true;do
atacontrol detach ata3
atacontrol attach ata3
done

If messages are displayed during this test, it is more difficult to freeze the system.
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: