mixer panic

[Sascha Wildner]

Hi,

HEAD panics when the mixer tries to start via /etc/rc.d/mixer 
(specifically, the 'cat $mixer_conf | xargs mixer' command crashes the 
box). Crash dump available on request.

Backtrace:

#0  dumpsys () at thread.h:83
#1  0xc014eb41 in db_fncall (dummy1=1136, dummy2=0, dummy3=-956503448, 
dummy4=0xc6fcea64 "\317\a") at /usr/src/sys/ddb/db_command.c:541
#2  0xc014e8fb in db_command (last_cmdp=0xc04999f0, cmd_table=0x0, 
aux_cmd_tablep=0xc0444728, aux_cmd_tablep_end=0xc044472c)
    at /usr/src/sys/ddb/db_command.c:343
#3  0xc014e9db in db_command_loop () at /usr/src/sys/ddb/db_command.c:469
#4  0xc0151558 in db_trap (type=3, code=0) at /usr/src/sys/ddb/db_trap.c:71
#5  0xc03b825c in kdb_trap (type=3, code=0, regs=0xc6fceb80) at 
/usr/src/sys/i386/i386/db_interface.c:150
#6  0xc03cbb8e in trap (frame=
      {tf_fs = -956563432, tf_es = -1002831856, tf_ds = -956563440, 
tf_edi = 1, tf_esi = -1069278424, tf_ebp = -956503096, tf_isp = 
-956503124, tf_ebx = 256, tf\
_edx = -1072988160, tf_ecx = 32, tf_eax = 18, tf_trapno = 3, tf_err = 0, 
tf_eip = -1069840974, tf_cs = 8, tf_eflags = 662, tf_esp = -1069436450, 
tf_ss = -106952\
3019}) at /usr/src/sys/i386/i386/trap.c:788
#7  0xc03b952f in calltrap () at /usr/src/sys/i386/i386/exception.s:774
#8  0xc03b85b2 in Debugger (msg=0x12 <Address 0x12 out of bounds>) at 
cpufunc.h:73
#9  0xc01da0fc in panic (fmt=0xc0441b28 "syscall: critical section count 
mismatch! %d/%d") at /usr/src/sys/kern/kern_shutdown.c:682
#10 0xc03cc6b8 in syscall2 (frame=
      {tf_fs = 47, tf_es = 47, tf_ds = 47, tf_edi = 0, tf_esi = 3, 
tf_ebp = -1077937568, tf_isp = -956502668, tf_ebx = 26, tf_edx = -1, 
tf_ecx = -1077937492, tf\
_eax = 0, tf_trapno = 12, tf_err = 2, tf_eip = 671847888, tf_cs = 31, 
tf_eflags = 518, tf_esp = -1077937748, tf_ss = 47}) at 
/usr/src/sys/i386/i386/trap.c:1484
#11 0xc03b95ba in Xint0x80_syscall () at 
/usr/src/sys/i386/i386/exception.s:852
#12 0x0000001f in ?? ()
#13 0x0000002f in ?? ()
#14 0x00000000 in ?? ()
#15 0x00000000 in ?? ()
#16 0x00000000 in ?? ()
#17 0x00000000 in ?? ()
#18 0x02651000 in ?? ()
#19 0xc43a1a00 in ?? ()
#20 0xc43a1300 in ?? ()
#21 0xc6fcebec in ?? ()
#22 0xc6fcebcc in ?? ()
#23 0xff800000 in ?? ()
#24 0xc01e0127 in lwkt_switch () at /usr/src/sys/kern/lwkt_thread.c:740
Previous frame inner to this frame (corrupt stack?)

Sascha

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