On 2013-01-23 00:29, Suravee Suthikulanit wrote: > I sent out a patch > (http://marc.info/?l=linux-kernel&m=135889686523524&w=2) which should > implement > the workaround for AMD processor family15h model 10-1Fh erratum 746 in > the IOMMU driver. > In your case, the output from "setpci -s 00:00.02 F4.w" is "0050" which > tells me that BIOS doesn't > implement the work around. After patching, you should see the following > message in "dmesg". > > "AMD-Vi: Applying erratum 746 for IOMMU at 0000:00:00.2"
Thanks! I'll check for that after these messages. > The following patch slightly modify > the code to always issue "COMPLETION_WAIT" after every command. This > should help increasing the chance of reproducing > the issue. Should I test with these two patches together? Or should I apply the first one first and then see what the second can help? Kind regards, Udo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
