LOR pcm0:play:0 / kernel environment

Hi,

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 ---

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