Hrm, can't find the debug symbols package for containderd, attached gdb to the busy thread and observed:
0x0000555dbb5d3913 in runtime.futex () (gdb) where #0 0x0000555dbb5d3913 in runtime.futex () #1 0x0000555dbb59f650 in runtime.futexsleep () #2 0x0000555dbcfa5010 in runtime.sched () #3 0x0000000000000000 in ?? () (gdb) The addresses map to the core of containerd and no other support libs: /proc/$PID/maps shows: 555dba8cf000-555dbb576000 r--p 00000000 fd:01 10619259 /usr/bin/containerd 555dbb576000-555dbc246000 r-xp 00ca7000 fd:01 10619259 /usr/bin/containerd 555dbc246000-555dbc388000 r--p 01977000 fd:01 10619259 /usr/bin/containerd 555dbc388000-555dbcf45000 r--p 01ab8000 fd:01 10619259 /usr/bin/containerd 555dbcf45000-555dbcfa0000 rw-p 02675000 fd:01 10619259 /usr/bin/containerd -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1826684 Title: containerd is polling on a pselect every 20,000 nanoseconds causing rapid system wakeup events To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/containerd/+bug/1826684/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
