Update - Tried Both these options.
1) Adding pcie_aspm=off to kernel parameters
2) adding pci=noaer to kernel parameters.
Doing either stops IRQ process hogging the CPU. Planning to go with
pcie_aspm=off.
Thank you.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1880653
Title:
irq/126-aerdrv always eating 30-40 % of a CPU core
To manage
As requested, attached output of 'sudo lspci -vvv'
** Attachment added: "Output of 'sudo lspci -vvv'"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1880653/+attachment/5376895/+files/sudo%20lspci%20-vvv.txt
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Public bug reported:
HP Pavilion - 14-al103ne
Ubuntu 20.04
'top' command shows irq/126-aerdrv always running eating a lot of CPU.
Have attached 'powertop' and 'watch -n 1 cat /proc/interrupts' screenshots.
Thank you. Please get back for more information
ProblemType: Bug
DistroRelease: Ubuntu
