I am also seeing this with current Linux (5.7-rc7) on an MSI B350M MORTAR and a Dell OptiPlex 5055. Both are AMD Ryzen systems, so this seems to affect all of those.
The IOMMU subsystem maintainer responded to report this issue to the mainboard vendor, so they fix the firmware [1]. Everybody experiencing this, please contact the mainboard vendor to fix this. I already did, and the more contact them, the higher it will rise in their ticketing system. [1]: https://lists.linuxfoundation.org/pipermail/iommu/2018-July/028925.html -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1804589 Title: AMD-Vi write error To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1804589/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
