https://bugs.kde.org/show_bug.cgi?id=514681
Bug ID: 514681
Summary: Directories and hardlinked files are skipped if their
inode number matches an entry on another filesystem
Classification: Applications
Product: filelight
Version First 25.08.3
Reported In:
Platform: Gentoo Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Target Milestone: ---
SUMMARY
When the scan sees that a directory entry has >=2 links, it checks if it has
seen the inode before, and if it has, skips it. This is incorrect when there
are multiple filesystems involved, as inodes are not globally unique. As mount
points have the inode of the root of the mounted filesystem rather than the
directory they were mounted on, this can lead to collisions even within the
same directory.
STEPS TO REPRODUCE
1. Mount several filesystems of the same type (tmpfs works to reproduce) on
mountpoints in the same directory
2. Run filelight
OBSERVED RESULT
Filelight skips all but one
EXPECTED RESULT
Filelight shows all of them
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Gentoo Linux 2.18
KDE Plasma Version: 6.4.5
KDE Frameworks Version: 6.20.0
Qt Version: 6.9.3
ADDITIONAL INFORMATION
I think identifying files by a `(st_dev, st_ino)` pair should be sufficient for
most filesystems?
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