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. > > Gary
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