Seems like a process is still running at umount time and a re-mount fails. I think it snowballs after that.
[ 1209.031563] Mount point: /mnt/vfat-test-15951 [ 1209.032392] Started, PID 67047 [ 1224.249103] stress-ng now terminated [ 1224.249203] Stopped, PID 67047 (after 14 seconds) [ 1224.249312] umounting vfat [ 1224.468077] umounting tmpfs [ 1224.548526] Testing: --verify --times --metrics-brief --syslog --keep-name -t 10s --hdd 2 --hdd-opts sync,wr-rnd,rd-rnd,fadv-willneed,fadv-rnd --lockf 2 --seek 2 --aio 2 --aio-requests 32 --dentry 2 --dir 2 --dentry-order stride --fallocate 2 --fstat 2 --dentries 100 --lease 2 --open 2 --rename 2 --hdd-bytes 4M --fallocate-bytes 4M --chdir 2 --rename 2 --hdd-write-size 512 [ 1225.606221] Created loop image /mnt/vfat-test-15951/vfat-loop-data [ 1225.684994] ubuntu_vfat_str (15951): drop_caches: 1 [ 1225.692320] ubuntu_vfat_str (15951): drop_caches: 2 [ 1225.695075] ubuntu_vfat_str (15951): drop_caches: 3 [ 1226.046191] VFAT options: fmask=777 [ 1226.046241] Stress test: /home/ubuntu/autotest/client/tmp/ubuntu_vfat_stress/src/stress-ng/stress-ng --verify --times --metrics-brief --syslog --keep-name -t 10s --hdd 2 --hdd-opts sync,wr-rnd,rd-rnd,fadv-willneed,fadv-rnd --lockf 2 --seek 2 --aio 2 --aio-requests 32 --dentry 2 --dir 2 --dentry-order stride --fallocate 2 --fstat 2 --dentries 100 --lease 2 --open 2 --rename 2 --hdd-bytes 4M --fallocate-bytes 4M --chdir 2 --rename 2 --hdd-write-size 512 [ 1226.046261] Mount point: /mnt/vfat-test-15951 [ 1226.046733] Started, PID 107847 [ 1230.696549] stress-ng now terminated [ 1230.696689] Stopped, PID 107847 (after 4 seconds) [ 1230.696870] umounting vfat [ 1230.729214] umount vfat /mnt/vfat-test-15951 failed [ 1230.729283] umounting tmpfs [ 1230.730847] umount /mnt/vfat-test-15951 failed [ 1230.746365] /mnt/vfat-test-15951 is already mounted! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1805778 Title: ubuntu_vfat_stress failed again with P8/P9 Bionic To manage notifications about this bug go to: https://bugs.launchpad.net/stress-ng/+bug/1805778/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
