today I noticed those lines appearing in my dmesg command output:
May 29 20:00:32 PC kernel: vfs-change discarded[75]: 1527614896 file-deleted, /etc/.#grouptKnxCp, (null)
May 29 20:00:32 PC kernel: vfs-change discarded[77]: 1527614896 file-deleted, /etc/.#gshadow12IUYc, (null)
May 29 20:00:32 PC kernel: vfs-change discarded[221]: 1527614896 file-created, /var/log/journal/83d7b3d9fdbb4d9a871a34a0eedda56c/[email protected]~, (null)
May 29 20:00:32 PC kernel: vfs-change discarded[121]: 1527614896 file-created, /var/log/journal/83d7b3d9fdbb4d9a871a34a0eedda56c/system.journal, (null)
May 29 20:00:32 PC kernel: vfs-change discarded[159]: 1527614896 file-deleted, /var/log/journal/83d7b3d9fdbb4d9a871a34a0eedda56c/[email protected]~, (null)
May 29 20:00:32 PC kernel: vfs-change discarded[102]: 1527614896 file-created, /etc/udev/hwdb.bin, (null)
May 29 20:00:32 PC kernel: vfs-change discarded[132]: 1527614903 file-created, /var/lib/systemd/catalog/database, (null)
May 29 20:00:32 PC kernel: vfs-change discarded[71]: 1527614903 dir-created, /tmp/.X11-unix, (null)
May 29 20:00:32 PC kernel: vfs-change discarded[71]: 1527614903 dir-created, /tmp/.ICE-unix, (null)
May 29 20:00:32 PC kernel: vfs-change discarded[71]: 1527614903 dir-created, /tmp/.XIM-unix, (null)
I wanted to understand what those messages mean. They appear sometimes when system deletes or creates a file/directory. It does not seem to be dependent on any specific drive or partition or filesystem as / (root partition), my RAID partition and even /tmp are affected.
As I investigated further I found out they were appearing since about 10 days. There are at least thousnds of those and it makes hard to read dmesg or journalctl output because of that.
I tried to google some parts of the lines but couldn't find any clue except that it is probably Virtual File System log (from kernel).
Thanks for any help.