> Did this issue start happening after an update/upgrade? I did not have hard lockups before upgrading to 4.13.0-25. The lockup happened once, after several days past the upgrade. I did not look in the logs until after the lockup, so I can't tell if the tcp_fastretrans_alert errors were there with older kernels.
> Would it be possible for you to test the latest upstream kernel? Given that I had only one lockup so far and tcp_fastretrans_alert errors happen at unknown points, I can only see if such errors appear in logs after a few days of use. I cannot be sure if it fixes the lockup. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1744379 Title: tcp_fastretrans_alert kernel warnings, possible system hardlock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1744379/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
