Date: Sat, 31 Dec 2005 07:40:51 GMT From: Trent George <trent@norwalkdist.com> To: freebsd-gnats-submit@FreeBSD.org Subject: misc/91121: kernel divide by zero on boot with ATI IXP400 UMDA controller Message-ID: <200512310740.jBV7epnW025506@www.freebsd.org> Resent-Message-ID: <200512310750.jBV7o32l055107@freefall.freebsd.org>
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>Number: 91121
>Category: misc
>Synopsis: kernel divide by zero on boot with ATI IXP400 UMDA controller
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sat Dec 31 07:50:03 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator: Trent George
>Release: 6.0-Stable
>Organization:
none
>Environment:
FreeBSD 6.0-STABLE FreeBSD 6.0-STABLE #0: Fri Dec 30
:/usr/obj/usr/src/sys/SMP1 i386
>Description:
When trying to boot after install with 6.0 or 7.0 the kernel panics with a divide by zero on a ATI IXP400 UMDA Controller (new ATI chipset for AMD)
when booting the same drive off a differnt intel 865 motherboard, all is fine.
when booting the same drive off a Promise TX 100 on the bad MB, all is fine .
I think the fast processor AMD 3800+ X2 may be effecting a timing calculation for this specific controller code ?
Trent
PS: Hello Soren.
>How-To-Repeat:
Boot up problem machine with 6.0 or 7.0 installed on HD off onboard Controller.
Boot will not complete.
>Fix:
booting the same drive off a differnt intel 865 motherboard, all is fine.
booting the same drive off a Promise TX 100 on the bad MB, all is fine .
>Release-Note:
>Audit-Trail:
>Unformatted:
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