Hello Junjiro,
I may be experiencing a deadlock issue with AUFS.
I'm running Slax with root filesystem on aufs, which consists of one
writable branch (tmpfs) and many readonly squashfs loop-mounted
branches.
I'm experiencing deadlock in KDE after adding a branch to aufs. The
main KDE processes (knotify4, plasma-desktop, krunner) are in D state
(uninterruptible sleep) and KDE freezes. The rest of the system is
usable, but if I try "find /root" it freezes on
/root/.kde/share/config (that is a directory full of different
configuration files, KDE writes to it very often and probably has some
files open from there too)
I also tried lsof | grep share/config and it produced strange output:
plasma-de 2189 root 16w REG 0,15 25 11354
/root/.kde/share/config/plasma-desktop-appletsrc.lock
find 2524 root 4r unknown
/root/.kde/share/config (deleted) (stat: Stale NFS file handle)
Notice in the second line that it claims the directory 'config' is
deleted, which is not true, I can 'stat' it.
What more info should I provide in order for you to debug this? Thank you
Tomas M
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