Hi,
After this commit, audio playback causes kernel panic.
The following is kernel panic message from LOCKDEBUG kernel
(manually rewritten).
Mutex error: mutex_vector_exit,717: exiting unheld spin mutex
lock address : 0xfffffe810fc11010 type: spin
ininialized : 0xffffffff80733860
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
current cpu : 0 last held: 2
current lwp : 0xfffffe821eae1000 last held: 000000000000000000
last locked : 0xffffffff8072440b unlocked*: 0xffffffff808ca55d
owner field : 0x0000000000000700 wait/spin: 0/1
panic: LOCKDEBUG: Mutex error: mutex_vector_exit,717: exiting unheld spin mutex
fatal breakpoint trap in supervisor mode
trap type 1 code 0 rip ffffffff80215365 cs 8 rflags 246 cr2 7e01df80e010 ilevel
8 rsp fffffe8110371c40
curlwp 0xfffffe821eae1000 pid 41.2 lowest kstack 0xfffffe811036f2c0
Stopped in pid 41.2 (pulseaudio) at netbsd:breakpoint:0x5: leave
db{0}>
From: "Nathanial Sloss" <n...@netbsd.org>, Date: Fri, 24 Feb 2017 09:49:49 +0000
> Module Name: src
> Committed By: nat
> Date: Fri Feb 24 09:49:49 UTC 2017
>
> Modified Files:
> src/sys/dev: audio.c
>
> Log Message:
> Simplify locking. Hold intr lock only when dealing with sc_pr (mix ring)
> or virtual channel 0 (hardware).
>
>
> To generate a diff of this commit:
> cvs rdiff -u -r1.309 -r1.310 src/sys/dev/audio.c
>
> Please note that diffs are not public domain; they are subject to the
> copyright notices on the relevant files.
>
--
Ryo ONODERA // ryo...@yk.rim.or.jp
PGP fingerprint = 82A2 DC91 76E0 A10A 8ABB FD1B F404 27FA C7D1 15F3
