How to stop 'uninterruptible' process on Linux?

Tilo Prütz :

I have a VirtualBox process hanging around which I tried to kill (KILL/ABORT) but without success. The parent pid is 1 (init).

top shows the process as D which is documented as "uninterruptible sleep".

strace shows up nothing.

How can I get rid of this? It prevents me from unloading the VirtualBox kernel driver to load a newer one.

jpalecek :

Simple answer: you cannot.

Longer answer: the uninterruptable sleep means the process will not be woken up by signals. It can be only woken up by what it's waiting for. When I get such situations eg. with CD-ROM, I usually reset the computer by using suspend-to-disk and resuming.

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