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I want to remove a module currently in use in linux. Module name is say i915 (display module) rmmod i915 shows Module currently in use. Similar output using rmmod -f i915 and it is not dependent on any module. How to go about doing this.

Thanks in advance

Jatin Kumar
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2 Answers2

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i915 is currently being used by some user-space application, such as the X server. You'll have to shut down whatever is using it before you can remove the module.

bdonlan
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  • I have understood that we need to close the applications currently using that module. I was wondering if we can forcefully do something like this. Thanks for quick response. – Jatin Kumar Jul 02 '11 at 12:13
  • In general, you can't force a module to unload; doing so would leave all kinds of stray pointers into it after it's unloaded, leading to almost-certain crashes :) – bdonlan Jul 03 '11 at 02:17
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Besides the module being in use, the inability to unload it could also be caused by a bug in the driver.

This problem occurred when a driver I was developing was missing the logic to unlink the /dev entry linkage structure during the driver unload operation.

wallyk
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