kern/88047: 6.0-RC1 reboots with SMP and asr

[Andrzej Kukula]

>Number:         88047
>Category:       kern
>Synopsis:       6.0-RC1 reboots with SMP and asr
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Oct 26 19:00:32 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator:     Andrzej Kukula
>Release:        6.0-RC1 (RELENG_6_0) with SMP
>Organization:
>Environment:
FreeBSD 6.0-RC1 #6: Wed Oct 26 15:01:10 CEST 2005     root at freebsd.local:/usr/obj/usr/src/sys/KERN6  i386
Compaq Proliant 800, 2*P3 800MHz, 640 MB RAM, ADAPTEC 3200S (chipset 7899G), 2*18GB Ultra 160 in HW RAID-1, / on that RAID (da0 on asr0)
              
>Description:
While doing normal boot, the last lines are:
asr0: <Adaptec Caching SCSI RAID> mem 0xc4000000-0xc5ffffff irq 9 at device 8.1 on pci1
asr0: [GIANT-LOCKED]
A second after this message appears, the system reboots without any further warning.

No compiler optimization options were used, tried with and without ASR_COMPAT. No differences.
              
>How-To-Repeat:
Get RELENG_6_0 and compile it with "options SMP". Connect asr and observe repeated restarts.

>Fix:
Not known. An (unacceptable) workaround is to compile the kernel without SMP and use 1 CPU.

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