[Bug 201753] AMD-Vi: Unable to write to IOMMU perf counter

bugzilla-daemon
2021-02-24T20:32:59Z

--- Comment #9 from Paul Menzel (pmenzel+bugzilla.kernel.org@molgen.mpg.de) ---
Created attachment 295423
--> https://bugzilla.kernel.org/attachment.cgi?id=295423&action=edit
Linux 5.12+ messages

Some days ago, Linus added the commit to this main branch [1].

Unfortunately, I am still seeing this error.

[ 0.000000] Linux version 5.11.0-10281-g19b4f3edd5c9 (root@a2ab663d937e)
(gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian)
2.35.1) #138 SMP Wed Feb 24 11:28:17 UTC 2021
[…]
[ 0.106422] smpboot: CPU0: AMD Ryzen 3 2200G with Radeon Vega Graphics
(family: 0x17, model: 0x11, stepping: 0x0)
[…]
[ 0.291257] pci 0000:00:00.2: AMD-Vi: Unable to read/write to IOMMU perf
counter.
[…]

@00oo00, is the error gone for you now (AMD Ryzen 5 2400G with Radeon Vega
Graphics (family: 0x17, model: 0x11, stepping: 0x0))?

[1]: