Messages in this thread | | | Date | Tue, 28 Aug 2007 12:28:47 -0600 | From | Grant Grundler <> | Subject | Re: [PATCH] Fix boot-time hang on G31/G33 PC |
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On Tue, Aug 28, 2007 at 11:59:08AM -0600, Grant Grundler wrote: > On Sat, Aug 25, 2007 at 07:55:56PM -0600, Matthew Wilcox wrote: > > > > This patch, loosely based on a patch from Robert Hancock, which was in > > turn based on a patch from Jesse Barnes, fixes a boot-time hang on my > > shiny new PC. The 'conflict' mentioned in the patch in my case happens > > to be between mmconfig and the graphics card, but it could easily be > > between any pair of devices if they are left enabled by the BIOS and > > mappen in the wrong place. > > This issue has come up before: > http://www.uwsg.indiana.edu/hypermail/linux/kernel/0212.2/0232.html
Ok...finally found the thread I was looking for: http://www.ussg.iu.edu/hypermail/linux/kernel/0212.2/0978.html
or look at the "by Thread" page and search for "disable BAR": http://www.ussg.iu.edu/hypermail/linux/kernel/0212.2/index.html
Main difference now is not disabling anything on any sort of Bridge.
Summary: Sizing BARs has never been a very safe operation. We have to mitigate as best we can and then live with the remaining risks.
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