[Bug 248500] cam_sim_free() sleeping forever

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=248500

Conrad Meyer <cem at freebsd.org> changed:

           What    |Removed                     |Added
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                 CC|                            |cem at freebsd.org

--- Comment #1 from Conrad Meyer <cem at freebsd.org> ---
I don't remember if it was in cam_sim_free, but I've experienced a similar
refcount leak when removing a USB device in the past.  Eventually something
else blocks on one of the deadlocks and the system dies.

I did some cursory debugging, but didn't identify the problem:
https://reviews.freebsd.org/P300

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