Re: kern/40488: Unable to reboot Dell PE 2970

[Andrew Doran <ad%netbsd.org@localhost>]

On Mon, Jan 26, 2009 at 11:05:04PM +0000, Andrew Doran wrote:
> The following reply was made to PR kern/40488; it has been noted by GNATS.
> 
> From: Andrew Doran <ad%netbsd.org@localhost>
> To: gnats-bugs%NetBSD.org@localhost
> Cc: port-i386%netbsd.org@localhost, port-amd64%netbsd.org@localhost
> Subject: Re: kern/40488: Unable to reboot Dell PE 2970
> Date: Mon, 26 Jan 2009 23:03:16 +0000
> 
>  On Mon, Jan 26, 2009 at 10:45:00PM +0000, mbowie%buzmo.com@localhost wrote:
>  
>  > Running a fresh install of either 4.0.1 or 5.0_BETA (from 20090125) on a 
> Dell PowerEdge 2970 (BIOS 3.0.3).  Issuing a reboot or "shutdown -r now" 
> results in the machine hanging indefinitely after unmounting the local 
> filesystems.  A test installation of FreeBSD on the same system reboots 
> successfully.  Testing with both ACPI and ACPI / SMP disabled yields the same 
> results.  There are no ACPI tunables in the BIOS.
>  
>  We could try port 0x92 and the PCI reset vector before the triple fault.
>  Anyone interested in taking a look?

FreeBSD at seems to try the port 92 method but not the PCI method.

        http://fxr.watson.org/fxr/source/i386/i386/vm_machdep.c#L652

Andrew