In other words: having /focal-proposed enabled, and installing linux- generic 5.4.0.91.95 will install the kernel that needs the verification.
------- Comment From [email protected] 2021-11-10 12:30 EDT------- Ah ok didn't know that, thanks for the explanation. I tried the test scenario with this kernel and actually saw the behavior of the common PCI core keeping a reference to the removed function 0 that I didn't see in some previous kernels. This could also be due to other circumstances in testing but it does mean that without this fix the kernel would likely have crashed in my test. It did not and the /sys/kernel/debug/s390dbf/pci_msg/sprintf prints added with the fix showed that it worked as designed. In summary the fix is working in the proposed kernel and we do definitely need it to prevent NULL pointer dereference and subsequent kernel crash in the test scenario. The "FW pages counter is 43318 after reclaiming all pages" warning is still there as expected though. I did a quick search but I'm not sure which upstream commit in the Mellanox driver would get rid of that too but at least this doesn't lead to a panic. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1943464 Title: Reassign I/O Path of ConnectX-5 Port 1 before Port 2 causes NULL dereference To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1943464/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
