** Description changed: 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
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2090994 Title: Seeing OS hang after running 300+ reboot loops on Turin with MI210 GPUs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/2090994/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
