This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1804589
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1804589
Title:
AMD-Vi write error
Status in linux package in Ubuntu:
Incomplete
Bug description:
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
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