Package: src:linux Version: 4.19.37-3 Severity: normal Sequence of events:
1. Notebook is rebooted properly, used for work for some hours 2. Notebook lid was closed, STR works as usual 3. Notebook opened; some work; lid close, STR works 4. Notebook was opened; NFS4 from remote machine mounted 5. Files copied around 6. NFS server stopped (data only temporarily shared) 7. NFS unmounted via "umount dir/", returns immediately to shell 7. I remember that I stopped the server already, "umount dir/ -f &" 9. Closing the lid 6. About half an hour later I take the notebook from my bag and see that it's still running 10. I see the messages about NFS 11. I start NFS again for a clean umount - but it's not mounted any more, so there's nothing to umount 12. Manual "acpitool -s" (twice) doesn't work (19:34:26) 13. I stop the NFS server again 14. Closing the lid still doesn't work 15. I start NFS again 16. At 20:00 an "at" job stops the NFS server again 17. MUCH LATER one of the backgrounded "acpitool -s" seems to work, notebook gets suspended while I'm working with it 18. Something's still thinking that NFS is mounted Here's some log data, shortened/annotated: 16:24:14 2. PM: suspend entry (deep) 16:24:14 PM: Syncing filesystems ... done. 16:49:34 3. PM: suspend exit 17:13:53 " PM: suspend entry (deep) 18:23:36 " PM: Syncing filesystems ... done. 18:23:36 4. PM: suspend exit 18:41:39 9. PM: suspend entry (deep) 18:43:31 PM: Syncing filesystems ... 18:45:12 10. INFO: task systemd-sleep:3057 blocked for more than 120 seconds. 18:47:13 INFO: task systemd-sleep:3057 blocked for more than 120 seconds. 18:49:14 INFO: task systemd-sleep:3057 blocked for more than 120 seconds. 18:51:14 INFO: task systemd-sleep:3057 blocked for more than 120 seconds. 18:53:15 INFO: task systemd-sleep:3057 blocked for more than 120 seconds. 18:55:16 INFO: task systemd-sleep:3057 blocked for more than 120 seconds. 18:57:17 INFO: task systemd-sleep:3057 blocked for more than 120 seconds. 18:59:18 INFO: task systemd-sleep:3057 blocked for more than 120 seconds. 19:01:19 INFO: task systemd-sleep:3057 blocked for more than 120 seconds. 19:03:19 INFO: task systemd-sleep:3057 blocked for more than 120 seconds. 19:32:34 11. nfs: server rpi3 OK 19:34:26 12. PM: suspend entry (deep) 19:34:26 PM: suspend exit 19:34:30 PM: suspend entry (deep) 19:34:30 PM: suspend exit 19:37:09 14. PM: suspend entry (deep) 19:37:09 PM: suspend exit 19:40:27 15. nfs: server rpi3 OK 20:52:49 17. done. 20:52:49 Freezing user space processes ... (elapsed 0.029 seconds) done. 20:52:49 18. PM: suspend exit 20:55:33 nfs: server rpi3 not responding, timed out I know this is not that easy to understand; still, I hope it's reproducible. Thank you! -- Package-specific info: ** Version: Linux version 4.19.0-5-amd64 (debian-kernel@lists.debian.org) (gcc version 8.3.0 (Debian 8.3.0-7)) #1 SMP Debian 4.19.37-3 (2019-05-15) ** Command line: BOOT_IMAGE=/vmlinuz-4.19.0-5-amd64 root=/dev/mapper/n555--vg-root ro initrd=/install/initrd.gz quiet ** Not tainted