? 2012?2?16? ??5:21?Chen Jie <chenj at lemote.com> ??? > Hi, > > ? 2012?2?15? ??11:53?Jerome Glisse <j.glisse at gmail.com> ??? >> To me it looks like the CP is trying to fetch memory but the >> GPU memory controller fail to fullfill cp request. Did you >> check the PCI configuration before & after (when things don't >> work) My best guest is PCI bus mastering is no properly working >> or the PCIE GPU gart table as wrong data. >> >> Maybe one need to drop bus master and reenable bus master to >> work around some bug... > Thanks for your suggestion. We've tried the 'drop and reenable master' > trick, unfortunately doesn't work. > The PCI configuration compare will be done later. Update: We've checked the first 64 bytes of PCI configuration space before & after, and didn't find any difference.
Regards, -- Chen Jie
