On 2013-01-23 00:29, Suravee Suthikulanit wrote:Please try the first one first. If the issue doesn't reproduce, you can use the second patch to try to trigger it.I sent out a patchThanks!
(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"
I'll check for that after these messages.
The following patch slightly modifyShould I test with these two patches together?
the code to always issue "COMPLETION_WAIT" after every command. This
should help increasing the chance of reproducing
the issue.
Or should I apply the first one first and then see what the second can help?
Kind regards,
Udo