This bug is awaiting verification that the linux-lowlatency- hwe-6.11/6.11.0-1007.7~24.04.1 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-noble-linux- lowlatency-hwe-6.11' to 'verification-done-noble-linux-lowlatency- hwe-6.11'. If the problem still exists, change the tag 'verification- needed-noble-linux-lowlatency-hwe-6.11' to 'verification-failed-noble- linux-lowlatency-hwe-6.11'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: kernel-spammed-noble-linux-lowlatency-hwe-6.11-v2 verification-needed-noble-linux-lowlatency-hwe-6.11 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2078773 Title: Missing devices nodes for AMD Instinct MI300 card when installed along with integrated display Status in HWE Next: New Status in linux package in Ubuntu: Fix Committed Status in linux-oem-6.11 package in Ubuntu: Invalid Status in linux source package in Noble: Invalid Status in linux-oem-6.11 source package in Noble: Fix Released Status in linux source package in Oracular: Fix Released Status in linux-oem-6.11 source package in Oracular: Invalid Bug description: [SRU Justification] BugLink: https://bugs.launchpad.net/bugs/2078773 [Impact] Missing devices nodes for AMD Instinct MI300 card when installed along with integrated display. [Fix] * https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.12-rc1&id=5fbca8b48b3050ae7fb611a8b09af60012ed6de1 ("drm: Use XArray instead of IDR for minors") * https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.12-rc1&id=45c4d994b82b08f0ce5eb50f8da29379c92a391e ("accel: Use XArray instead of IDR for minors") * https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.12-rc1&id=071d583e01c88272f6ff216d4f867f8f35e94d7d ("drm: Expand max DRM device number to full MINORBITS") [Test Case] When enabled, additional drm devices will become available: ``` root123@g593-sx1:~$ ls -l /sys/class/drm/ lrwxrwxrwx 1 root root 0 Sep 21 00:55 card10 -> ../../devices/platform/amdgpu_xcp_7/drm/card10 lrwxrwxrwx 1 root root 0 Sep 21 00:55 card11 -> ../../devices/platform/amdgpu_xcp_8/drm/card11 lrwxrwxrwx 1 root root 0 Sep 21 00:55 card12 -> ../../devices/platform/amdgpu_xcp_9/drm/card12 lrwxrwxrwx 1 root root 0 Sep 21 00:55 card13 -> ../../devices/platform/amdgpu_xcp_10/drm/card13 lrwxrwxrwx 1 root root 0 Sep 21 00:55 card14 -> ../../devices/platform/amdgpu_xcp_11/drm/card14 lrwxrwxrwx 1 root root 0 Sep 21 00:55 card15 -> ../../devices/platform/amdgpu_xcp_12/drm/card15 lrwxrwxrwx 1 root root 0 Sep 21 00:55 card16 -> ../../devices/platform/amdgpu_xcp_13/drm/card16 ... ``` [Where problems could occur] New hardware support. Expect more fixes in need. [Other Info] Targeting last supported generic/oem kernels only. Nominated for oem-6.11, generic-6.11 and unstable. ========== original bug descriptions ========== An issue has come up with MI300 OEM deployments where, due to the current limit of 64 drm device nodes in the kernel, MI300 systems with an integrated display (e.g., mgag200 or ast) fail to light up the console because the AMD GPU driver has used up all of the drm device nodes. A patch set recently landed in drm-misc to extend the number of device nodes. These are the relevant commits: * https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=5fbca8b48b3050ae7fb611a8b09af60012ed6de1 ("drm: Use XArray instead of IDR for minors") * https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=45c4d994b82b08f0ce5eb50f8da29379c92a391e ("accel: Use XArray instead of IDR for minors") * https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=071d583e01c88272f6ff216d4f867f8f35e94d7d ("drm: Expand max DRM device number to full MINORBITS") When enabled, additional drm devices will become available: ``` root123@g593-sx1:~$ ls -l /sys/class/drm/ lrwxrwxrwx 1 root root 0 Sep 21 00:55 card10 -> ../../devices/platform/amdgpu_xcp_7/drm/card10 lrwxrwxrwx 1 root root 0 Sep 21 00:55 card11 -> ../../devices/platform/amdgpu_xcp_8/drm/card11 lrwxrwxrwx 1 root root 0 Sep 21 00:55 card12 -> ../../devices/platform/amdgpu_xcp_9/drm/card12 lrwxrwxrwx 1 root root 0 Sep 21 00:55 card13 -> ../../devices/platform/amdgpu_xcp_10/drm/card13 lrwxrwxrwx 1 root root 0 Sep 21 00:55 card14 -> ../../devices/platform/amdgpu_xcp_11/drm/card14 lrwxrwxrwx 1 root root 0 Sep 21 00:55 card15 -> ../../devices/platform/amdgpu_xcp_12/drm/card15 lrwxrwxrwx 1 root root 0 Sep 21 00:55 card16 -> ../../devices/platform/amdgpu_xcp_13/drm/card16 ... ``` To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/2078773/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
