| LOR |
lock order reversal
1st 0xc12bf0c0 sbc0 (sound softc) @ sys/dev/sound/isa/sbc.c:131
2nd 0xc12ad840 pcm0:play:0 (pcm play channel) @ sys/dev/sound/pcm/channel.c:525
KDB: stack backtrace:
kdb_backtrace(c06d6729,c12ad840,c12c4d54,c06c96c9,c06c9717) at kdb_backtrace+0x2e
witness_checkorder(c12ad840,9,c06c9717,20d,0) at witness_checkorder+0x6c3
_mtx_lock_flags(c12ad840,0,c06c9717,20d,c1295b00) at _mtx_lock_flags+0x8a
chn_intr(c12c4d00,c,c04fab2a,0,c1295ad8) at chn_intr+0x2d
ess_intr(c1295b00,c12add80,c11a0b00,c5bd2d00,c04ed4b2) at ess_intr+0x75
sbc_intr(c1295ad8,0,c06d05e1,220,c5bd2d00) at sbc_intr+0x24
ithread_loop(c11a0b00,c5bd2d38,c06d03d8,30d,3c89ffff) at ithread_loop+0x162
fork_exit(c04ed350,c11a0b00,c5bd2d38) at fork_exit+0xc1
fork_trampoline() at fork_trampoline+0x8
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