https://bugs.kde.org/show_bug.cgi?id=415887
Bug ID: 415887
Summary: KIO Core KDiskFreeSpaceInfo freeSpaceInfo using wrong
free space on btrfs Filesystems
Product: frameworks-kio
Version: unspecified
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: fa...@kde.org
Reporter: linux2...@plntyk.name
CC: kdelibs-b...@kde.org
Target Milestone: ---
Krusader and Dolphin apparently use KIO/core/KDiskFreeSpaceInfo::freeSpaceInfo
to get free space of a certain filesystem/path.
As reported in
https://bugs.kde.org/show_bug.cgi?id=415512
this is reporting errors when there is sufficient capacity available on the
drive as it is "just" unallocated - also on a half full disk.
It might be an Kernel or API issue with sys/statvfs
not really knowing or guaranteeing the free space on BTRFS.
Other filesystems with late allocation or delayed allocation might experience
similar problems.
STEPS TO REPRODUCE
1. copying files with Krusader or Dolphin
2. observe error popup
EXPECTED RESULT
successful copy
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 5.4 Kernel/
KDE Plasma Version:5.17.4
KDE Frameworks Version: 5.65.0
Qt Version: 5.14.0
Copying on commandline works as expected
df <path> ouputs 0 space left
btrfs fi usage <path>
Overall:
Device size: 7.28TiB
Device allocated: 7.21TiB
Device unallocated: 69.00GiB
Device missing: 7.28TiB
Used: 7.15TiB
Free (estimated): 130.37GiB (min: 95.87GiB)
Data ratio: 1.00
Metadata ratio: 2.00
Global reserve: 512.00MiB (used: 0.00B)
Data,single: Size:7.19TiB, Used:7.13TiB (99.17%)
Metadata,DUP: Size:8.00GiB, Used:7.81GiB (97.64%)
System,DUP: Size:8.00MiB, Used:784.00KiB (9.57%)
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