Public bug reported:
I use heavily encfs and sshfs filesystems. Since 12.10 I observe
regularly that mounted filesystems go awry but remain mounted, and files
within them are not accessible. The obvious symptom is listing the
folder in which they're mounted. In the following example an encfs is
mounted in a folder named 'dropbox':
$ ls -lF
ls: cannot access dropbox: Transport endpoint is not connected
total 16K
d????????? ? ? ? ? ? dropbox/
-rwxr-xr-x 1 jano jano 937 mar 6 10:39 fixlinks*
There is the dropbox folder and the the regular file fixlinks, for
comparison, which is in the same folder.
Sometimes the folder can be unmounted simply with sudo umount <folder>,
others it is necessary to use -l (lazy unmount).
I suspected encfs could be responsible, until I saw this with a sshfs
filesystem. Still, I've been able to locate any log or crash message to
confirm that fuse is the culprit. Any indications on how to debug this
further are welcome.
This tends to happen once a day, but it seems that heavy access (e.g.,
doing a find in the root of the fs) tends to favor its occurrence.
I'm sorry if this has been already reported but searching for
'd?????????' seems futile in google.
$ lsb_release -rd
Description: Ubuntu 12.10
Release: 12.10
$ apt-cache policy fuse
fuse:
Installed: 2.9.0-1ubuntu2
** Affects: fuse (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1152186
Title:
possible fuse crash and inaccessible mounted filesystem
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