I have now purged all -43 and -44 kernels (i.e. the released -43 kernel and all test kernels v1 through v5), then reinstalled the released -43 kernel, and also pulled in the compat-wireless package for -43. After rebooting the machine has stayed up overnight.
Luis and I both had a theory about the cause: - Luis found an installation issue in the apt logs which might have caused the initial installation of the -43 kernel to be bodged. I would however have expected that situation to have been corrected by my subsequent dpkg -i-ing of the test kernel packages. - I noticed that I am using certain modules from the compat-wireless package, and that a compat-wireless package corresponding with the -43 kernel package had not yet been available when I first upgraded to -43, nor while I was testing the v1 through v3 test kernels which were also based on the -43 ABI. I could try and remove the -43 compat-wireless package and test again; would you like me to do that? (Meanwhile I'll keep the current situation until the machine has been up for at least 48 hours in order to confirm stability). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1052861 Title: After upgrade to new kernel version, machine crashes after a few hours of uptime To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1052861/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs