[LinuxBIOS] CONFIG_LB_MEM_TOPK (and a patch)

Lu, Yinghai yinghai.lu at amd.com
Mon Apr 10 18:01:03 CEST 2006

Please try another switch

In southbridge/amd/amd8111/amd8111_pci.c

Line dword |= (1<<27) /* discard Timer */
===> dword &= ~(1<<27);


-----Original Message-----
From: linuxbios-bounces at linuxbios.org
[mailto:linuxbios-bounces at linuxbios.org] On Behalf Of Ward Vandewege
Sent: Monday, April 10, 2006 7:15 AM
To: Alan Mimms
Cc: linuxbios at linuxbios.org; Lu, Yinghai
Subject: Re: [LinuxBIOS] CONFIG_LB_MEM_TOPK (and a patch)

On Fri, Apr 07, 2006 at 04:00:28PM -0700, Alan Mimms wrote:
> The code should be setting the 1<<4 bit (so as to clear one of the
> bits) instead of 1<<6 (the read only bit that signals end of HT bus
> chain).
> After making this change, your board won't hang when the BIOS or Linux
> detects a need to reboot due to some fatal error.
> This is a pretty trivial change to an error case that hardly ever
> but was crucial for us.  I claim this change is safe and correct and
> should be merged into the main line code.

Yes, please merge that change!

Our box now keeps rebooting itself instead of crashing - have a look at
attached boot log. Maybe this will be more of a clue as to what exactly
happening? Anyone got anymore ideas?

Thanks, Alan!!

Ward Vandewege <ward at fsf.org>
Free Software Foundation - Senior System Administrator

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