Tested the -proposed kernel on boomer with 6.2 fw version. ubuntu@boomer:~$ dmesg | grep sbsa ubuntu@boomer:~$ sudo modprobe sbsa_gwdt ubuntu@boomer:~$ dmesg | grep sbsa ubuntu@boomer:~$ lsmod | grep sbsa sbsa_gwdt 16384 0 ubuntu@boomer:~$ ls /dev/watchdog ls: cannot access '/dev/watchdog': No such file or directory ubuntu@boomer:~$
Looks like sbsa is not exposed by fw6.2 on this thunderx2 system. No kernel crash was observed. ** Tags removed: verification-needed-artful ** Tags added: verification-done-artful -- 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/1755595 Title: sbsa watchdog crashes thunderx2 system Status in linux package in Ubuntu: Fix Released Status in linux source package in Artful: Fix Committed Status in linux source package in Bionic: Fix Released Bug description: [Impact] Using the SBSA watchdog will crash the OS on ThunderX2 systems. This is not an issue in current firmware because the SBSA watchdog is not exposed - but it is likely to be introduced in a future update. [Test Case] $ sudo bash # cat < /dev/watchdog [Regression Risk] The fix is restricted the sbsa_gwdt driver, which is only currently available on some arm64 servers. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1755595/+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
