Public bug reported: 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 ** Affects: ubuntu Importance: Undecided Status: New ** Tags: bot-comment -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1906279 Title: amd64: cma_alloc errors at boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1906279/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
