[Expired for linux (Ubuntu) because there has been no activity for 60 days.]
** Changed in: linux (Ubuntu) Status: Incomplete => Expired -- 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/2090994 Title: Seeing OS hang after running 300+ reboot loops on Turin with MI210 GPUs Status in linux package in Ubuntu: Expired Bug description: 1. Run a rebooter script on Turin blade with AMD GPU MI210 installed in Gdale Result: After 300+ reboots OS (Ubuntu) hangs (see image attached) Rebooting OS will fix an issue. Seen on multiple blade setups. No hangs observer with less than 300 loops so far. Here is a Linux grub workaround provided by AMD (also see image attached): Please disable 5-level page tables. Here is how to do it: 1. Open the GRUB configuration file: sudo nano /etc/default/grub 2. Add no5lvl to the list of parameters: GRUB_CMDLINE_LINUX="... no5lvl" 3. Add add iommu=pt to GRUB_CMDLINE_LINUX_DEFAULT 4. Update GRUB: sudo update-grub 5. Reboot the system. Ubuntu OS version used here is 22.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2090994/+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