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Re: kern/56816: Deadlock: sleep during unloading module with kernconfig_lock being held

To: kern-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost
Subject: Re: kern/56816: Deadlock: sleep during unloading module with kernconfig_lock being held
From: Rin Okuyama <rokuyama.rk%gmail.com@localhost>
Date: Sat, 7 May 2022 13:01:15 +0900

Summary:

During audio(4) module being unloaded, devsw_detach() sleeps in
localcount_fini() with kernconfig_lock() being held. This results in
deadlock when the next module is loaded.


Oops, not localcount_fini() but localcount_drain() here.

Thanks,
rin

References:
- kern/56816: Deadlock: sleep during unloading module with kernconfig_lock being held
  - From: rokuyama . rk

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