Date: Wed, 25 Sep 2013 10:11:51 +0100 (BST) From: Anton Shterenlikht <mexas@bris.ac.uk> To: freebsd-current@freebsd.org, freebsd-ia64@freebsd.org Subject: panic: ia64 r255811: deadlkres: possible deadlock detected for 0xe000000012d07b00, blocked for 902743 ticks Message-ID: <201309250911.r8P9Bpax001371@mech-cluster241.men.bris.ac.uk>
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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@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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