https://bugzilla.kernel.org/show_bug.cgi?id=198187 Bug ID: 198187 Summary: jbd2_log_wait_commit hangs Product: File System Version: 2.5 Kernel Version: >=4.13 Hardware: Intel OS: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: ext4 Assignee: fs_ext4@xxxxxxxxxxxxxxxxxxxx Reporter: lav@xxxxxx Regression: No sometimes, a process stucks in jbd2_log_wait_commit wait state. After that, any "sync" and probably fsync calls stuck too. The symptom is LA growing to insane values. On one server the most common stuck process is logrotate in a lxc container. I could not log in to two other affected servers. Another few servers at my disposal do not exhibit this behaviour. There is no disk related messages in the log or dmesg. Nothing suspicious at all in the log. Graceful reboot hangs too. The problem started with 4.13.8 and did not occur in 4.12.8. Here is the dnf history info after which the problem started to occur: Erase kernel-4.12.8-200.fc25.i686 @updates/25 Install kernel-4.13.8-100.fc25.i686 @updates/25 kernel downgrade fixes the problem. -- You are receiving this mail because: You are watching the assignee of the bug.
