http://bugzilla.suse.com/show_bug.cgi?id=1165374 Bug ID: 1165374 Summary: btrfs: dmesg flooded with BTRFS info (device dm-2): found 1 extents, command btrfs balance stuck Classification: openSUSE Product: openSUSE Distribution Version: Leap 15.1 Hardware: x86-64 OS: Linux Status: NEW Severity: Normal Priority: P5 - None Component: Kernel Assignee: kernel-maintainers@forge.provo.novell.com Reporter: ohering@suse.com QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- Leap 15.1, 4.12.14-lp151.28.36-default #1 SMP Fri Dec 6 13:50:27 UTC 2019 (8f4a495) x86_64 The cron job is running since hours: 480 ? Ss 0:00 /bin/sh /usr/share/btrfsmaintenance/btrfs-scrub.sh 502 ? S 0:00 \_ /bin/sh /usr/share/btrfsmaintenance/btrfs-scrub.sh 512 ? Sl 2:21 | \_ btrfs scrub start -Bd / 503 ? S 0:00 \_ /bin/sh /usr/share/btrfsmaintenance/btrfs-scrub.sh 506 ? S 0:00 \_ cat 484 ? Ss 0:00 /bin/sh /usr/share/btrfsmaintenance/btrfs-balance.sh 495 ? S 0:00 \_ /bin/sh /usr/share/btrfsmaintenance/btrfs-balance.sh 583 ? D 391:14 | \_ btrfs balance start -v -dusage 1 / 496 ? S 0:00 \_ /bin/sh /usr/share/btrfsmaintenance/btrfs-balance.sh 501 ? S 0:00 \_ cat Mar 01 00:00:07 latitude systemd[1]: Started Discard unused blocks on a mounted filesystem. Mar 01 00:00:07 latitude systemd[1]: Starting Rotate log files... Mar 01 00:00:07 latitude systemd[1]: Started Scrub btrfs filesystem, verify block checksums. Mar 01 00:00:07 latitude systemd[1]: Starting update of the root trust anchor for DNSSEC validation in unbound... Mar 01 00:00:07 latitude systemd[1]: Starting Do daily mandb update... Mar 01 00:00:07 latitude systemd[1]: Started Balance block groups on a btrfs filesystem. Mar 01 00:00:07 latitude btrfs-balance.sh[484]: Before balance of / Mar 01 00:00:07 latitude systemd[1]: Started Rotate log files. Mar 01 00:00:07 latitude btrfs-scrub.sh[480]: Running scrub on / Mar 01 00:00:07 latitude btrfs-trim.sh[475]: Running fstrim on / Mar 01 00:00:07 latitude btrfs-balance.sh[484]: Data, single: total=291.96GiB, used=248.47GiB Mar 01 00:00:07 latitude btrfs-balance.sh[484]: System, single: total=32.00MiB, used=48.00KiB Mar 01 00:00:07 latitude btrfs-balance.sh[484]: Metadata, single: total=8.01GiB, used=5.67GiB Mar 01 00:00:07 latitude btrfs-balance.sh[484]: GlobalReserve, single: total=512.00MiB, used=0.00B Mar 01 00:00:07 latitude btrfs-balance.sh[484]: Filesystem Size Used Avail Use% Mounted on Mar 01 00:00:07 latitude btrfs-balance.sh[484]: /dev/mapper/$NAME 323G 274G 47G 86% / Mar 01 00:00:07 latitude kernel: BTRFS info (device dm-2): relocating block group 650800791552 flags data Mar 01 00:00:07 latitude systemd[1]: Started update of the root trust anchor for DNSSEC validation in unbound. Mar 01 00:00:07 latitude systemd[1]: Started Do daily mandb update. Mar 01 00:00:10 latitude kernel: BTRFS info (device dm-2): relocating block group 650800791552 flags data Mar 01 00:00:13 latitude btrfs-balance.sh[484]: Done, had to relocate 0 out of 307 chunks Mar 01 00:00:13 latitude kernel: BTRFS info (device dm-2): relocating block group 650800791552 flags data Mar 01 00:00:15 latitude kernel: BTRFS info (device dm-2): relocating block group 650800791552 flags data Mar 01 00:00:18 latitude kernel: BTRFS info (device dm-2): relocating block group 669846077440 flags data Mar 01 00:00:23 latitude kernel: btrfs_printk: 44 callbacks suppressed Mar 01 00:00:28 latitude kernel: btrfs_printk: 49 callbacks suppressed Mar 01 00:00:33 latitude kernel: btrfs_printk: 20 callbacks suppressed Mar 01 00:08:39 latitude btrfs-trim.sh[475]: /: 52.3 GiB (56112553984 bytes) trimmed Mar 01 00:08:48 latitude kernel: btrfs_printk: 4 callbacks suppressed Since this time dmesg (and syslog!) is flooded: ... [133288.707878] BTRFS info (device dm-2): found 1 extents [133288.789487] BTRFS info (device dm-2): found 1 extents [133288.863970] BTRFS info (device dm-2): found 1 extents [133288.942187] BTRFS info (device dm-2): found 1 extents ... Situation unclear: will shutdown or suspend trash my filesystem? -- You are receiving this mail because: You are on the CC list for the bug.