FYI:
Full source CVSupped on the 18th or 19th
Panic came about when I did a 'ls' in ngctl(8).
Kernel config attached, gdb of core follows below:
This GDB was configured as "i386-unknown-freebsd"...
IdlePTD 5300224
initial pcb at 31c4e0
panicstr: from debugger
panic messages:
---
panic: mutex_enter: MTX_SPIN on MTX_DEF mutex netgraph node mutex @
../../netgraph/ng_base.c:2205
panic: from debugger
Uptime: 1d4h5m24s
dumping to dev ad0s2b, offset 262144
dump ata0: resetting devices .. done
128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110
109 108 107 106 105 104 103 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88
87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63
62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38
37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13
12 11 10 9 8 7 6 5 4 3 2 1
---
#0 dumpsys () at ../../kern/kern_shutdown.c:477
477 if (dumping++) {
(kgdb) trace
trace command requires an argument
(kgdb) where
#0 dumpsys () at ../../kern/kern_shutdown.c:477
#1 0xc0187342 in boot (howto=260) at ../../kern/kern_shutdown.c:320
#2 0xc0187711 in panic (fmt=0xc02a1794 "from debugger")
at ../../kern/kern_shutdown.c:570
#3 0xc0142b51 in db_panic (addr=-1071151608, have_addr=0, count=-1,
modif=0xc7f70bac "") at ../../ddb/db_command.c:433
#4 0xc0142af1 in db_command (last_cmdp=0xc02e20f4, cmd_table=0xc02e1f54,
aux_cmd_tablep=0xc0305e7c) at ../../ddb/db_command.c:333
#5 0xc0142bb6 in db_command_loop () at ../../ddb/db_command.c:455
#6 0xc0144d83 in db_trap (type=3, code=0) at ../../ddb/db_trap.c:71
#7 0xc027839a in kdb_trap (type=3, code=0, regs=0xc7f70cb0)
at ../../i386/i386/db_interface.c:164
#8 0xc028376c in trap (frame={tf_fs = -1070530536, tf_es = 16,
tf_ds = -940113904, tf_edi = -1056367804, tf_esi = 256,
tf_ebp = -940110596, tf_isp = -940110628, tf_ebx = 2,
tf_edx = -1072984320, tf_ecx = 32, tf_eax = 18, tf_trapno = 3,
tf_err = 0, tf_eip = -1071151608, tf_cs = 8, tf_eflags = 70,
tf_esp = -1070788385, tf_ss = -1070936125}) at
../../i386/i386/trap.c:596
#9 0xc0278608 in Debugger (msg=0xc02acfc3 "panic") at machine/cpufunc.h:60
#10 0xc0187708 in panic (
fmt=0xc02ac060 "mutex_enter: MTX_SPIN on MTX_DEF mutex %s @ %s:%d")
at ../../kern/kern_shutdown.c:568
#11 0xc01813aa in witness_enter (m=0xc1091b48, flags=1,
file=0xc02b5c91 "../../netgraph/ng_base.c", line=2205)
---Type <return> to continue, or q <return> to quit---
at ../../kern/kern_mutex.c:842
#12 0xc01e25e6 in ng_snd_item (item=0xc132e740, queue=1)
at ../../sys/mutex.h:528
#13 0xc01e4640 in ng_generic_msg (here=0xc1091b00, item=0xc132e740,
lasthook=0x0) at ../../netgraph/ng_base.c:2855
#14 0xc01e2f14 in ng_apply_item (node=0xc1091b00, item=0xc132e740)
at ../../netgraph/ng_base.c:2386
#15 0xc01e2ab0 in ng_snd_item (item=0xc132e740, queue=0)
at ../../netgraph/ng_base.c:2249
#16 0xc139890f in ?? ()
#17 0xc01ae707 in sosend (so=0xc81e2c00, addr=0xc0f5fb30, uio=0xc7f70edc,
top=0xc0b3fa00, control=0x0, flags=0, p=0xc8d83ca0)
at ../../kern/uipc_socket.c:620
#18 0xc01b3668 in sendit (p=0xc8d83ca0, s=3, mp=0xc7f70f1c, flags=0)
at ../../kern/uipc_syscalls.c:577
#19 0xc01b371e in sendto (p=0xc8d83ca0, uap=0xc7f70f80)
at ../../kern/uipc_syscalls.c:630
#20 0xc0284551 in syscall2 (frame={tf_fs = 47, tf_es = 47, tf_ds = 47,
tf_edi = -1077967404, tf_esi = -1077967406, tf_ebp = -1077966892,
tf_isp = -940109868, tf_ebx = 671528168, tf_edx = -1077967408,
tf_ecx = -1077967408, tf_eax = 133, tf_trapno = 12, tf_err = 2,
tf_eip = 671772124, tf_cs = 31, tf_eflags = 518, tf_esp = -1077967496,
tf_ss = 47}) at ../../i386/i386/trap.c:1153
#21 0xc0278d03 in Xint0x80_syscall ()
---Type <return> to continue, or q <return> to quit---
#22 0x28069995 in ?? ()
#23 0x8049dc7 in ?? ()
#24 0x8049119 in ?? ()
#25 0x80490ca in ?? ()
#26 0x804904b in ?? ()
#27 0x8048d1f in ?? ()
#28 0x8048acd in ?? ()
(kgdb)
VENUS
