On 2016-02-22 06:57, David Kiarie wrote: > On Sun, Feb 21, 2016 at 11:20 PM, Jan Kiszka <jan.kis...@web.de> wrote: >> On 2016-02-21 19:10, David Kiarie wrote: >>> Hello there, >>> >>> Repost, AMD IOMMU patches version 6. >>> >>> Changes since version 5 >>> -Fixed macro formating issues >>> -changed occurences of IO MMU to IOMMU for consistency >>> -Fixed capability registers duplication >>> -Rebased to current master >> >> I suspect this still has some subtle bugs: I'm running the patches over >> master with standard Linux distro as guest, full desktop, and I'm >> getting sporadic segfaults of arbitrary programs. These disappear once I >> disable the IOMMU or switch to the Intel version. > > Is this L1 guest or L2 guest ? - haven't got any such so far.
It's L1 only. > >> >> How did you test so far? > > I mainly test by logging. I've tested L1 without any iommu-related > command line parameters and with L1 with 'iommu=1 iommu=pt'. L2 guest; > passed-through a device checked it's working correctly, that all. > These guests barely have any load though. I quickly reproduced the issue by starting some "heavier" applications, a browser or an office suite. Something is apparently always corrupted then, data or code, thus the crashes. Jan
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