https://bugzilla.kernel.org/show_bug.cgi?id=217572 --- Comment #4 from Christian Theune (ct@xxxxxxxxxxxxxxx) --- I've only seen this once, so no indication on older or newer kernels, yet, either with smaller or larger databases. I fortunately could repair the PostgreSQL database with a FULL VACUUM on the table and then the dump worked fine again. Hanging in the past typically indicated a network storage issue, so I'm aware of the multiple causes the hung tasks can have, I still appreciate the link. :) At the time of the hung tasks, I can see almost no IO (but also no IO pressure) and 60% (of 3 CPUs) are reported as using up SYSTEM time. Something that made me think XFS was that we ended up with inconsistent data within PostgreSQL which I haven't seen in a decade. Nevertheless, it appears this might be a MM issue as I stumbled over this inquiry which also mentions a 6.1 kernel: https://www.spinics.net/lists/kernel/msg4783004.html I'm trying to get in touch with Daniel to see whether his analysis went anywhere ... -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
