panic: ia64 r255811: deadlkres: possible deadlock detected for 0xe000000012d07b00, blocked for 902743 ticks
Anton Shterenlikht
mexas at bris.ac.uk
Wed Sep 25 10:57:39 UTC 2013
FreeBSD mech-as221.men.bris.ac.uk 10.0-ALPHA2 FreeBSD 10.0-ALPHA2 #8 r255811: Tue Sep 24 09:04:17 BST 2013 root at mech-as221.men.bris.ac.uk:/usr/obj/usr/src/sys/UZI ia64
panic: deadlkres: possible deadlock detected for 0xe000000012d07b00, blocked for 902743 ticks
cpuid = 1
KDB: stack backtrace:
db_trace_self(0x9ffc0000000c9ec0) at db_trace_self+0x40
db_trace_self_wrapper(0x9ffc0000004d40b0) at db_trace_self_wrapper+0x70
kdb_backtrace(0x9ffc000000bfb030, 0x9ffc00000045b350, 0x40c, 0x9ffc000000dd20a0) at kdb_backtrace+0xc0
vpanic(0x9ffc000000aec840, 0xa0000000005cb518) at vpanic+0x260
panic(0x9ffc000000aec840, 0x9ffc000000aecaa0, 0xe000000012d07b00, 0xdc657) at panic+0x80
deadlkres(0xdc657, 0xe000000012d07b00, 0x9ffc000000aef478, 0x9ffc000000aec7d0) at deadlkres+0x420
fork_exit(0x9ffc000000b441e0, 0x0, 0xa0000000005cb550) at fork_exit+0x120
enter_userland() at enter_userland
KDB: enter: panic
[ thread pid 0 tid 100047 ]
Stopped at kdb_enter+0x92: [I2] addl r14=0xffffffffffe28fb0,gp ;;
db>
db> show msgbuf
*skip*
<118>Sep 24 09:36:02 mech-as221 su: mexas to root on /dev/pts/0
lock order reversal:
1st 0xa00000005f0518b8 bufwait (bufwait) @ /usr/src/sys/kern/vfs_bio.c:3059
2nd 0xe000000012343000 dirhash (dirhash) @ /usr/src/sys/ufs/ufs/ufs_dirhash.c:284
KDB: stack backtrace:
db_trace_self(0x9ffc0000000c9ec0) at db_trace_self+0x40
db_trace_self_wrapper(0x9ffc0000004d40b0) at db_trace_self_wrapper+0x70
kdb_backtrace(0x9ffc000000bfb030, 0x9ffc000000509870) at kdb_backtrace+0xc0
_witness_debugger(0x1, 0x9ffc000000b01d10, 0x9ffc00000050d240, 0xb9d, 0x9ffc000000b2e268) at _witness_debugger+0x60
witness_checkorder(0xe000000012343000, 0x9ffc000000b01660, 0x9ffc000000b2e268, 0x11c, 0x0) at witness_checkorder+0x15b0
_sx_xlock(0xe000000012343000, 0x0, 0x9ffc000000b2e268, 0x11c) at _sx_xlock+0x120
ufsdirhash_acquire(0xe0000000123bd308, 0xe000000012343000, 0x9ffc0000008d1920, 0x38b) at ufsdirhash_acquire+0x50
ufsdirhash_remove(0xe0000000123bd308, 0xa000000060ecbd08, 0x1d08, 0xa00000008fea51e8) at ufsdirhash_remove+0x20
ufs_dirremove(0xe0000000123d8000, 0xe0000000129e29d8, 0x0, 0x0) at ufs_dirremove+0x380
ufs_remove(0xa00000008fea5380, 0xe0000000129e29d8, 0xa1c) at ufs_remove+0xe0
VOP_REMOVE_APV(0x9ffc000000bc3180, 0xa00000008fea5380, 0xe0000000122f8678, 0x0, 0x9ffc0000005c2920, 0xa1c, 0x9ffc000000dd20a0) at VOP_REMOVE_APV+0x220
kern_unlinkat(0xe0000000123e1200, 0xffffffffffffff9c, 0x7fffffffffffee36, 0x0, 0x0) at kern_unlinkat+0x3f0
kern_unlink(0xe0000000123e1200, 0x7fffffffffffee36, 0x0) at kern_unlink+0x40
sys_unlink(0xe0000000123e1200, 0xa00000008fea54e8, 0x9ffc000000988c80, 0x48d) at sys_unlink+0x30
syscall(0xe0000000123de940, 0x7fffffffffffee36, 0x7fffffffffffeb00, 0xe0000000123e1200, 0x0, 0x0, 0x9ffc000000983f20, 0x8) at syscall+0x5e0
epc_syscall_return() at epc_syscall_return
<6>pid 52065 (conftest), uid 0: exited on signal 11 (core dumped)
db> show thread
Thread 100047 at 0xe000000011973b00:
proc (pid 0): 0x9ffc000000c15828
name: deadlkres
stack: 0xa0000000005c4000-0xa0000000005cbfff
flags: 0x4 pflags: 0x200000
state: RUNNING (CPU 1)
priority: 108
container lock: sched lock 1 (0x9ffc000000c3de80)
db>
db> show proc
Process 0 (kernel) at 0x9ffc000000c15828:
state: NORMAL
uid: 0 gids: 0
ABI: null
threads: 151
100354 D - 0xe000000012697000 [zil_clean]
100353 D - 0xe00000001230c100 [zil_clean]
100347 D - 0xe000000012311c00 [zfs_vn_rele_taskq]
100345 D - 0xe000000012313500 [zio_ioctl_intr]
100344 D - 0xe000000012313400 [zio_ioctl_issue]
100343 D - 0xe000000012313300 [zio_claim_intr]
100342 D - 0xe000000012313200 [zio_claim_issue]
100341 D - 0xe000000012313100 [zio_free_intr]
100340 D - 0xe000000012313000 [zio_free_issue_99]
100339 D - 0xe000000012313000 [zio_free_issue_98]
100338 D - 0xe000000012313000 [zio_free_issue_97]
100337 D - 0xe000000012313000 [zio_free_issue_96]
100336 D - 0xe000000012313000 [zio_free_issue_95]
100335 D - 0xe000000012313000 [zio_free_issue_94]
100334 D - 0xe000000012313000 [zio_free_issue_93]
100333 D - 0xe000000012313000 [zio_free_issue_92]
100332 D - 0xe000000012313000 [zio_free_issue_91]
100331 D - 0xe000000012313000 [zio_free_issue_90]
100330 D - 0xe000000012313000 [zio_free_issue_89]
100329 D - 0xe000000012313000 [zio_free_issue_88]
100328 D - 0xe000000012313000 [zio_free_issue_87]
100327 D - 0xe000000012313000 [zio_free_issue_86]
100326 D - 0xe000000012313000 [zio_free_issue_85]
100325 D - 0xe000000012313000 [zio_free_issue_84]
100324 D - 0xe000000012313000 [zio_free_issue_83]
100323 D - 0xe000000012313000 [zio_free_issue_82]
100322 D - 0xe000000012313000 [zio_free_issue_81]
100321 D - 0xe000000012313000 [zio_free_issue_80]
100320 D - 0xe000000012313000 [zio_free_issue_79]
100319 D - 0xe000000012313000 [zio_free_issue_78]
100318 D - 0xe000000012313000 [zio_free_issue_77]
100317 D - 0xe000000012313000 [zio_free_issue_76]
100316 D - 0xe000000012313000 [zio_free_issue_75]
100315 D - 0xe000000012313000 [zio_free_issue_74]
100314 D - 0xe000000012313000 [zio_free_issue_73]
100313 D - 0xe000000012313000 [zio_free_issue_72]
100312 D - 0xe000000012313000 [zio_free_issue_71]
100311 D - 0xe000000012313000 [zio_free_issue_70]
100310 D - 0xe000000012313000 [zio_free_issue_69]
100309 D - 0xe000000012313000 [zio_free_issue_68]
100308 D - 0xe000000012313000 [zio_free_issue_67]
100307 D - 0xe000000012313000 [zio_free_issue_66]
100306 D - 0xe000000012313000 [zio_free_issue_65]
100305 D - 0xe000000012313000 [zio_free_issue_64]
100304 D - 0xe000000012313000 [zio_free_issue_63]
100303 D - 0xe000000012313000 [zio_free_issue_62]
100302 D - 0xe000000012313000 [zio_free_issue_61]
100301 D - 0xe000000012313000 [zio_free_issue_60]
100300 D - 0xe000000012313000 [zio_free_issue_59]
100299 D - 0xe000000012313000 [zio_free_issue_58]
100298 D - 0xe000000012313000 [zio_free_issue_57]
100297 D - 0xe000000012313000 [zio_free_issue_56]
100296 D - 0xe000000012313000 [zio_free_issue_55]
100295 D - 0xe000000012313000 [zio_free_issue_54]
100294 D - 0xe000000012313000 [zio_free_issue_53]
100293 D - 0xe000000012313000 [zio_free_issue_52]
100292 D - 0xe000000012313000 [zio_free_issue_51]
100291 D - 0xe000000012313000 [zio_free_issue_50]
100290 D - 0xe000000012313000 [zio_free_issue_49]
100289 D - 0xe000000012313000 [zio_free_issue_48]
100288 D - 0xe000000012313000 [zio_free_issue_47]
100287 D - 0xe000000012313000 [zio_free_issue_46]
100286 D - 0xe000000012313000 [zio_free_issue_45]
100285 D - 0xe000000012313000 [zio_free_issue_44]
100284 D - 0xe000000012313000 [zio_free_issue_43]
100283 D - 0xe000000012313000 [zio_free_issue_42]
100282 D - 0xe000000012313000 [zio_free_issue_41]
100281 D - 0xe000000012313000 [zio_free_issue_40]
100280 D - 0xe000000012313000 [zio_free_issue_39]
100279 D - 0xe000000012313000 [zio_free_issue_38]
100278 D - 0xe000000012313000 [zio_free_issue_37]
100277 D - 0xe000000012313000 [zio_free_issue_36]
100276 D - 0xe000000012313000 [zio_free_issue_35]
100275 D - 0xe000000012313000 [zio_free_issue_34]
100274 D - 0xe000000012313000 [zio_free_issue_33]
100273 D - 0xe000000012313000 [zio_free_issue_32]
100272 D - 0xe000000012313000 [zio_free_issue_31]
100271 D - 0xe000000012313000 [zio_free_issue_30]
100270 D - 0xe000000012313000 [zio_free_issue_29]
100269 D - 0xe000000012313000 [zio_free_issue_28]
100268 D - 0xe000000012313000 [zio_free_issue_27]
100267 D - 0xe000000012313000 [zio_free_issue_26]
100266 D - 0xe000000012313000 [zio_free_issue_25]
100265 D - 0xe000000012313000 [zio_free_issue_24]
100264 D - 0xe000000012313000 [zio_free_issue_23]
100263 D - 0xe000000012313000 [zio_free_issue_22]
100262 D - 0xe000000012313000 [zio_free_issue_21]
100261 D - 0xe000000012313000 [zio_free_issue_20]
100260 D - 0xe000000012313000 [zio_free_issue_19]
100259 D - 0xe000000012313000 [zio_free_issue_18]
100258 D - 0xe000000012313000 [zio_free_issue_17]
100257 D - 0xe000000012313000 [zio_free_issue_16]
100256 D - 0xe000000012313000 [zio_free_issue_15]
100255 D - 0xe000000012313000 [zio_free_issue_14]
100254 D - 0xe000000012313000 [zio_free_issue_13]
100253 D - 0xe000000012313000 [zio_free_issue_12]
100252 D - 0xe000000012313000 [zio_free_issue_11]
100251 D - 0xe000000012313000 [zio_free_issue_10]
100250 D - 0xe000000012313000 [zio_free_issue_9]
100249 D - 0xe000000012313000 [zio_free_issue_8]
100248 D - 0xe000000012313000 [zio_free_issue_7]
100247 D - 0xe000000012313000 [zio_free_issue_6]
100246 D - 0xe000000012313000 [zio_free_issue_5]
100245 D - 0xe000000012313000 [zio_free_issue_4]
100244 D - 0xe000000012313000 [zio_free_issue_3]
100243 D - 0xe000000012313000 [zio_free_issue_2]
100242 D - 0xe000000012313000 [zio_free_issue_1]
100241 D - 0xe000000012313000 [zio_free_issue_0]
100240 D - 0xe000000012312f00 [zio_write_intr_high]
100239 D - 0xe000000012312f00 [zio_write_intr_high]
100238 D - 0xe000000012312f00 [zio_write_intr_high]
100237 D - 0xe000000012312f00 [zio_write_intr_high]
100236 D - 0xe000000012312f00 [zio_write_intr_high]
100235 D - 0xe000000012312e00 [zio_write_intr_7]
100234 D - 0xe000000012312e00 [zio_write_intr_6]
100233 D - 0xe000000012312e00 [zio_write_intr_5]
100232 D - 0xe000000012312e00 [zio_write_intr_4]
100231 D - 0xe000000012312e00 [zio_write_intr_3]
100230 D - 0xe000000012312e00 [zio_write_intr_2]
100229 D - 0xe000000012312e00 [zio_write_intr_1]
100228 D - 0xe000000012312e00 [zio_write_intr_0]
100227 D - 0xe000000012312d00 [zio_write_issue_hig]
100226 D - 0xe000000012312d00 [zio_write_issue_hig]
100225 D - 0xe000000012312d00 [zio_write_issue_hig]
100224 D - 0xe000000012312d00 [zio_write_issue_hig]
100223 D - 0xe000000012312d00 [zio_write_issue_hig]
100222 D - 0xe000000012312c00 [zio_write_issue_1]
100221 D - 0xe000000012312c00 [zio_write_issue_0]
100220 D - 0xe000000012312b00 [zio_read_intr_1]
100219 D - 0xe000000012312b00 [zio_read_intr_0]
100218 D - 0xe000000012312a00 [zio_read_issue_7]
100217 D - 0xe000000012312a00 [zio_read_issue_6]
100216 D - 0xe000000012312a00 [zio_read_issue_5]
100215 D - 0xe000000012312a00 [zio_read_issue_4]
100214 D - 0xe000000012312a00 [zio_read_issue_3]
100213 D - 0xe000000012312a00 [zio_read_issue_2]
100212 D - 0xe000000012312a00 [zio_read_issue_1]
100211 D - 0xe000000012312a00 [zio_read_issue_0]
100210 D - 0xe000000012312900 [zio_null_intr]
100209 D - 0xe000000012312800 [zio_null_issue]
100067 D - 0xe000000012313700 [system_taskq_1]
100066 D - 0xe000000012313700 [system_taskq_0]
100047 Run CPU 1 [deadlkres]
100023 D - 0xe000000010bb5300 [kqueue taskq]
100022 D - 0xe000000010bb5400 [ffs_trim taskq]
100019 D - 0xe000000010bb5700 [thread taskq]
100016 D - 0xe000000010bb5a00 [acpi_task_2]
100015 D - 0xe000000010bb5a00 [acpi_task_1]
100014 D - 0xe000000010bb5a00 [acpi_task_0]
100009 D - 0xe000000010bb5d00 [firmware taskq]
100000 D swapin 0x9ffc000000c15828 [swapper]
db>
db>
db> thread 100047
[ thread pid 0 tid 100047 ]
kdb_enter+0x92: [I2] addl r14=0xffffffffffe28fb0,gp ;;
db> bt
Tracing pid 0 tid 100047 td 0xe000000011973b00
kdb_enter(0x9ffc000000af6e20, 0x9ffc000000af6e20, 0x9ffc00000045b3a0, 0x40c) at kdb_enter+0x92
vpanic(0x9ffc000000aec840, 0xa0000000005cb518) at vpanic+0x2b0
panic(0x9ffc000000aec840, 0x9ffc000000aecaa0, 0xe000000012d07b00, 0xdc657) at panic+0x80
deadlkres(0xdc657, 0xe000000012d07b00, 0x9ffc000000aef478, 0x9ffc000000aec7d0) at deadlkres+0x420
fork_exit(0x9ffc000000b441e0, 0x0, 0xa0000000005cb550) at fork_exit+0x120
enter_userland() at enter_userland
db>
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