OSXFUSE has a lingering mount

[gabriel]

I am trying to unload the osxfuse kext, and it's not letting me.

sudo kextunload -v 6 -b com.github.osxfuse.filesystems.osxfusefs

Kext user-space log filter changed from 0xff2 to 0xfff.
Kext kernel-space log filter changed from 0xff2 to 0xfff.
Requesting unload of com.github.osxfuse.filesystems.osxfusefs (with termnation of IOServices).
(kernel) User-space log flags changed from 0x0 to 0xfff.
(kernel) Received 'Unload' request from user space.
(kernel) Kext com.github.osxfuse.filesystems.osxfusefs calling module stop function.
(kernel) Kext com.github.osxfuse.filesystems.osxfusefs did not stop (return code 0x5).
(kernel) Kext com.github.osxfuse.filesystems.osxfusefs can't unload - module stop returned 0xdc008017.
Kernel error handling kext request - (libkern/kext) kext (kmod) start/stop routine failed.
Failed to unload com.github.osxfuse.filesystems.osxfusefs - (libkern/kext) kext (kmod) start/stop routine failed.

The console log reports:

8/28/15 3:57:09.000 PM kernel[0]: OSXFUSE: /dev/osxfuse1 has a lingering mount (pid=75302, ?)
8/28/15 3:57:09.000 PM kernel[0]: Kext com.github.osxfuse.filesystems.osxfusefs did not stop (return code 0x5).
8/28/15 3:57:09.000 PM kernel[0]: Kext com.github.osxfuse.filesystems.osxfusefs can't unload - module stop returned 0xdc008017.

There are no mounts and there is no process 75302 although there may have been in the past.

[gabriel]

It's possible if you try to unload the kext while mounted. And then even if you unmount, you'll never be able to kextunload?

[gabriel]

This is with osxfuse 2.8.0

[swiknaba]

Is there any solution to this already? My Macbook Pro Mid 2012 15" crashes around 5 times a day so I'm trying to get rid of everything that might cause this error. Uninstalling Tuxera gives me a really hard time. The kext is still loaded even though the system should be cleaned.

bash-3.2# kextunload -b com.tuxera.filesystems.tufsfs.fusefs_txantfs
(kernel) Kext com.tuxera.filesystems.tufsfs.fusefs_txantfs did not stop (return code 0x5).
(kernel) Kext com.tuxera.filesystems.tufsfs.fusefs_txantfs can't unload - module stop returned 0xdc008017.
Failed to unload com.tuxera.filesystems.tufsfs.fusefs_txantfs - (libkern/kext) kext (kmod) start/stop routine failed.

Before I tried with "normal" Terminal like this:

Ludwigs-MacBook-Pro:~ lud$ sudo kextunload -b com.tuxera.filesystems.tufsfs.fusefs_txantfs
sudo: unknown uid 501: who are you?
Ludwigs-MacBook-Pro:~ lud$ id
uid=501(lud) . . .

resulting in the "who are you?" error even though the computer knows I exist. Just for the record and for others: type "sudo -s" and hit enter, enter your password, voila you are using now the bash-3.2 terminal.

[bfleischer]

@gabriel Is this issue still reproducible with the latest version of FUSE for macOS?

[gabriel]

Nope, not reproducible anymore

[bfleischer]

Great, I'm closing the ticket then.