On Tue, Apr 10, 2012 at 3:53 AM, Steven Newbury <steve@xxxxxxxxxxxxxxx> wrote: > On 10/04/12 01:51, Bjorn Helgaas wrote: >> On Mon, Apr 9, 2012 at 4:49 AM, Steven Newbury <steve@xxxxxxxxxxxxxxx> wrote: >>> Hi Bjorn, >>> >>> like many users here: >>> >>> https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-180/+bug/342926 >>> >>> I've hit this bug: >>> https://bugzilla.kernel.org/show_bug.cgi?id=10461 >>> >>> I was wondering whether an option to enable an algorithm which >>> allocated all 64bit capable devices above 4GB would at least allow >>> systems where the BIOS has not provided a sufficient PCI hole to >>> initialise all PCI devices? I've been digging into the code, but I'm >>> not yet comfortable to seriously attempt this myself, certainly not >>> without guidance. >>> >>> It's a shame TJ seems to have disappeared, it would have been great to >>> have had a look at his code, I'm sure many of these problems would have >>> been resolved. >>> >>> Any help, workarounds, guidance or patches welcome! :) >> Please attach complete dmesg logs with and without "pci=use_crs" to >> the bugzilla. >> >> > dmesg logs attached to bug, for both pci=use_crs and pci=nocrs. In both > cases assignment fails. Can you please try attached patches with pci=nocrs? for pci=use_crs, we need find safe place beyond _CRS, because your _CRS limit under 4g. Thanks Yinghai
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