Running on any directory/filesystem causes the command to hang indefinitely, using 100% of a single CPU core. Downgrading to 2.9.1-1 fixes the problem. I couldn’t even run ncdu --help without the process hanging.
None of its dependencies are affected; all are older than the recent upgrade (2025-10-21).
Seems to be working fine on my end:
Name : ncdu
Version : 2.9.1-2
--- /home/cactux/.local/share/themes ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
6.9 MiB [##############################] /Nordic-darker-v40
6.9 MiB [##############################] /Nordic-darker
5.9 MiB [######################### ] /Qogir-Dark
5.5 MiB [####################### ] /Dracula
2.6 MiB [########### ] /Material-Black-Frost
1.7 MiB [####### ] /Adwaita-dark-nord
452.0 KiB [# ] /Midnight-Red
356.0 KiB [# ] /Material-Magic-Ink-GS
324.0 KiB [# ] /Pretty-In-Purple
320.0 KiB [# ] /Onyx
16.0 KiB [ ] /HighContrast
$ ncdu --help
ncdu <options> <directory>
Mode selection:
-h, --help This help message
-v, -V, --version Print version
-f FILE Import scanned directory from FILE
-o FILE Export scanned directory to FILE in JSON format
-O FILE Export scanned directory to FILE in binary format
-e, --extended Enable extended information
--ignore-config Don't load config files
Scan options:
-x, --one-file-system Stay on the same filesystem
--exclude PATTERN Exclude files that match PATTERN
-X, --exclude-from FILE Exclude files that match any pattern in FILE
--exclude-caches Exclude directories containing CACHEDIR.TAG
-L, --follow-symlinks Follow symbolic links (excluding directories)
--exclude-kernfs Exclude Linux pseudo filesystems (procfs,sysfs,cgroup,...)
-t NUM Scan with NUM threads
Export options:
-c, --compress Use Zstandard compression with `-o`
--compress-level NUM Set compression level
--export-block-size KIB Set export block size with `-O`
Interface options:
-0, -1, -2 UI to use when scanning (0=none,2=full ncurses)
-q, --slow-ui-updates "Quiet" mode, refresh interval 2 seconds
--enable-shell Enable/disable shell spawning feature
--enable-delete Enable/disable file deletion feature
--enable-refresh Enable/disable directory refresh feature
-r Read only (--disable-delete)
-rr Read only++ (--disable-delete & --disable-shell)
--si Use base 10 (SI) prefixes instead of base 2
--apparent-size Show apparent size instead of disk usage by default
--hide-hidden Hide "hidden" or excluded files by default
--show-itemcount Show item count column by default
--show-mtime Show mtime column by default (requires `-e`)
--show-graph Show graph column by default
--show-percent Show percent column by default
--graph-style STYLE hash / half-block / eighth-block
--shared-column off / shared / unique
--sort COLUMN-(asc/desc) disk-usage / name / apparent-size / itemcount / mtime
--enable-natsort Use natural order when sorting by name
--group-directories-first Sort directories before files
--confirm-quit Ask confirmation before quitting ncdu
--no-confirm-delete Don't ask confirmation before deletion
--delete-command CMD Command to run for file deletion
--color SCHEME off / dark / dark-bg
Refer to `man ncdu` for more information.
There’s an Arch bug report from 2 days ago:
Which leads to:
As a (temporary) workaround, you could try launching ncdu with the argument --ignore-config - this worked for the individual who intially reported the bug.
The package was flagged out of date sometime day, so I’ll wait for the new one. Thanks for all the info, everyone!
I just got an update to ncdu >> 2.9.2-1
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