Public bug reported:
AMD-Vi write error.
[ 0.777408] AMD-Vi: Unable to write to IOMMU perf counter.
[ 0.777529] pci 0000:00:00.2: can't derive routing for PCI INT A
[ 0.777530] pci 0000:00:00.2: PCI INT A: not connected
[ 0.778000] iommu: Adding device 0000:00:01.0 to group 0
[ 0.778231] iommu: Adding device 0000:00:01.2 to group 1
[ 0.778463] iommu: Adding device 0000:00:01.6 to group 2
[ 0.778690] iommu: Adding device 0000:00:08.0 to group 3
[ 0.778914] iommu: Adding device 0000:00:08.1 to group 4
[ 0.778940] iommu: Adding device 0000:00:08.2 to group 3
[ 0.779154] iommu: Adding device 0000:00:14.0 to group 5
[ 0.779176] iommu: Adding device 0000:00:14.3 to group 5
[ 0.779444] iommu: Adding device 0000:00:18.0 to group 6
[ 0.779474] iommu: Adding device 0000:00:18.1 to group 6
[ 0.779495] iommu: Adding device 0000:00:18.2 to group 6
[ 0.779516] iommu: Adding device 0000:00:18.3 to group 6
[ 0.779544] iommu: Adding device 0000:00:18.4 to group 6
[ 0.779566] iommu: Adding device 0000:00:18.5 to group 6
[ 0.779586] iommu: Adding device 0000:00:18.6 to group 6
[ 0.779606] iommu: Adding device 0000:00:18.7 to group 6
[ 0.779835] iommu: Adding device 0000:15:00.0 to group 7
[ 0.779869] iommu: Adding device 0000:15:00.1 to group 7
[ 0.779903] iommu: Adding device 0000:15:00.2 to group 7
[ 0.779933] iommu: Adding device 0000:16:04.0 to group 7
[ 0.779956] iommu: Adding device 0000:16:05.0 to group 7
[ 0.779977] iommu: Adding device 0000:16:06.0 to group 7
[ 0.779999] iommu: Adding device 0000:16:07.0 to group 7
[ 0.780031] iommu: Adding device 0000:1b:00.0 to group 7
[ 0.780058] iommu: Adding device 0000:1c:00.0 to group 7
[ 0.780296] iommu: Adding device 0000:2e:00.0 to group 8
[ 0.780592] iommu: Adding device 0000:38:00.0 to group 9
[ 0.780672] iommu: Using direct mapping for device 0000:38:00.0
[ 0.780767] iommu: Adding device 0000:38:00.1 to group 10
[ 0.780807] iommu: Adding device 0000:38:00.2 to group 10
[ 0.780847] iommu: Adding device 0000:38:00.3 to group 10
[ 0.780887] iommu: Adding device 0000:38:00.4 to group 10
[ 0.780934] iommu: Adding device 0000:38:00.6 to group 10
[ 0.780965] iommu: Adding device 0000:39:00.0 to group 3
[ 0.781307] AMD-Vi: Found IOMMU at 0000:00:00.2 cap 0x40
[ 0.781308] AMD-Vi: Extended features (0x4f77ef22294ada):
[ 0.781308] PPR NX GT IA GA PC GA_vAPIC
[ 0.781311] AMD-Vi: Interrupt remapping enabled
[ 0.781311] AMD-Vi: virtual APIC enabled
[ 0.781534] AMD-Vi: Lazy IO/TLB flushing enabled
** Affects: ubuntu
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1804589
Title:
AMD-Vi write error
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