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** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1906279
Title:
amd64: cma_alloc errors at boot
Status in linux package in Ubuntu:
Incomplete
Bug description:
I am a novice user attempting to get an RX 6800-XT GPU working on
Ubuntu 20.04. I'm using Ubuntu 20.04 because it's recommended by the
official AMD driver installer.
The RX 6800-XT requires kernel 5.10 or later. I have updated to kernel
5.10.0-rc6 using the mainline kernel updater GUI.
When booting into 5.10.0-rc6, I see about two dozen lines like
> cma: cma_alloc: alloc failed, req-size: 4 pages, ret: -12
The closest related bug I found was
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1823753
The boot hangs after those messages are printed.
I also tried kernel 5.9.10 and receive the same error.
However, if I boot into kernel recovery mode, and then select
"continue normal boot", then the system seems to boot normally.
My hardware
AMD Ryzen 9 3900X 3.8 GHz 12-Core Processor
AMD RX 6800-XT GPU
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