Re: LOR pcm0:play:0 / kernel environment

Antoine Brodin <antoine.brodin_at_laposte.net> wrote:

CCing multimedia_at_, since there are the people which may be able to solve ths
issue.

> I have a LOR that doesn't seem to be on the LOR page:
>
> lock order reversal
> 1st 0xc30b3b00 pcm0:play:0 (pcm play channel) _at_ 
> /usr/src/sys/modules/sound/sound/../../../dev/sound/pcm/channel.c:1134
> 2nd 0xc06a7900 kernel environment (kernel environment) _at_ 
> /usr/src/sys/kern/subr_hints.c:117
> KDB: stack backtrace:
> kdb_backtrace(c065a9a4,c06a7900,c0653c0b,c0653c0b,c0658e0a) at 
> kdb_backtrace+0x2e
> witness_checkorder(c06a7900,1,c0658e0a,75,e62c9a04) at 
> witness_checkorder+0x6c3
> _sx_slock(c06a7900,c0658e0a,75,c0656022,18b) at _sx_slock+0x7e
> res_find(e62c9b44,0,c2ff42ec,e62c9b58,c0e74b0a) at res_find+0x1bd
> resource_find(e62c9b44,0,c2ff42ec,e62c9b58,c0e74b0a) at resource_find+0x67
> resource_int_value(c2ff42ec,0,c0e74b0a,e62c9b70,c30c0100) at 
> resource_int_value+0x6c
> vchan_create(c30c0100,0,c0e746b1,100,4) at vchan_create+0x32d
> sysctl_hw_snd_maxautovchans(c0e778e0,0,4,e62c9bfc,e62c9bfc) at 
> sysctl_hw_snd_maxautovchans+0x207
> sysctl_root(0,e62c9c6c,3,e62c9bfc,c3080320) at sysctl_root+0x14e
> userland_sysctl(c3080320,e62c9c6c,3,0,0) at userland_sysctl+0x122
> __sysctl(c3080320,e62c9d04,18,422,6) at __sysctl+0xb7
> syscall(3b,3b,3b,0,bfbfee10) at syscall+0x2a2
> Xint0x80_syscall() at Xint0x80_syscall+0x1f
> --- syscall (202, FreeBSD ELF32, __sysctl), eip = 0x2812f17b, esp = 
> 0xbfbfe55c, ebp = 0xbfbfe588 ---

I assume this is with a recent -current, is this right? If yes, how recent?

Bye,
Alexander.

-- 
http://www.Leidinger.net  Alexander _at_ Leidinger.net: PGP ID = B0063FE7
http://www.FreeBSD.org     netchild _at_ FreeBSD.org  : PGP ID = 72077137
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