On Thu, Apr 26, 2018 at 4:51 PM, ojab // <[email protected]> wrote: > On Thu, Apr 26, 2018 at 4:25 PM, Gary R Hook <[email protected]> wrote: >> On 04/26/2018 10:22 AM, Joerg Roedel wrote: >>> >>> I've added some AMD people to Cc. Suravee, Tom, any ideas here? One of >>> the screen-shots behind the link below show IOTLB_INV_TIMEOUT errors, so >>> it is likely ATS related. Maybe you guys can reproduce it on your side? >>> >>> >>> Thanks, >>> >>> Joerg >>> >>> >>> On Thu, Apr 26, 2018 at 10:28:47AM +0000, ojab // wrote: >>>> >>>> I've made a bugzilla issue [1] about it, but I'm not sure if anyone >>>> reading bugzilla reports, so duplicating here. >>>> I have raven ridge APU (2400g) + ASUS A320M-K motherboard and boot >>>> (4.16.4 & 4.17-rc2) hangs printing many `[ 0.001000] AMD-Vi Command >>>> Buffer Timeout` messages. With IOMMU disabled (either via EFI/BIOS or >>>> using amd_iommu=off) it boots fine. >>>> >>>> What info is needed to debug/fix it? >> >> >> I realize this is an Asus system, but what BIOS version is on it? Did you >> look to see if an update is available (which I suspect is not, given that RR >> is quite new). > Latest BIOS (4008, release notes says `Update AGESA 1002a`). RR support was > added a while ago, but I've bought MB/CPU yesterday, so I'm not sure if it > works > on previous kernels/bioses. >> >> Have you made Asus aware of the problem? > Just sent request to their tech support via website form, but I doubt > that I'll hear > something useful from them.
and BTW screenshots w/ kernel panic and IOTLB_INV_TIMEOUT in bugzilla are not mine, it's another user with quite not the same issue. I have continuous messages >[ 0.001000] AMD-Vi Command Buffer Timeout (i. e. time is always 0.001000) with no kernel panics or any other feedback. //wbr ojab _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
