root@fledgling:~ # d debug.kdb.enter: 0KDB: enter: sysctl debug.kdb.enter [ thread pid 29475 tid 100945 ] Stopped at kdb_trap+0x71c: ori r0, r0, 0x0 db> ps pid ppid pgrp uid state wmesg wchan cmd 29475 29474 29474 0 R+ CPU 12 sysctl 29474 93121 29474 0 S+ wait 0xc000000235bda000 sh 29473 29354 29353 0 RV+ CPU 3 cc 29472 29366 29365 0 LV+ *vm obje 0xc00000003322eb40 cc 29471 29470 29470 0 LV+ *vm obje 0xc00000003322eb40 sh 29470 24910 29470 0 D+ ppwait 0xc00000002cea74d0 sh 29469 29341 29340 0 L+ *vm obje 0xc00000003322eb40 cc 29468 29467 29467 0 LV+ *vm obje 0xc00000003322eb40 sh 29467 24910 29467 0 D+ ppwait 0xc0000000515d7ef0 sh 29466 29465 29465 0 LV+ *vm obje 0xc00000003322eb40 sh 29465 24910 29465 0 D+ ppwait 0xc0000002290da9e0 sh 29464 29463 29463 0 LV+ *vm obje 0xc00000003322eb40 sh 29463 24910 29463 0 D+ ppwait 0xc00000002b270ef0 sh 29462 29461 29461 0 LV+ *vm obje 0xc00000003322eb40 sh 29461 24910 29461 0 D+ ppwait 0xc00000002b1564d0 sh 29460 29349 29346 0 LV+ *vm obje 0xc00000003322eb40 cc 29459 29458 29458 0 LV+ *vm obje 0xc00000003322eb40 sh 29458 24910 29458 0 D+ ppwait 0xc00000002dc82ef0 sh 29457 29345 29344 0 LV+ *vm obje 0xc00000003322eb40 cc 29456 29383 29382 0 LV+ *vm obje 0xc00000003322eb40 cc 29455 29351 29350 0 LV+ *vm obje 0xc00000003322eb40 cc 29454 29453 29453 0 LV+ *vm obje 0xc00000003322eb40 sh 29453 24910 29453 0 D+ ppwait 0xc000000229806ef0 sh 29452 29451 29451 0 LV+ *vm obje 0xc00000003322eb40 sh 29451 24910 29451 0 D+ ppwait 0xc0000000348c79e0 sh 29450 29449 29449 0 LV+ *vm obje 0xc00000003322eb40 sh 29449 24910 29449 0 D+ ppwait 0xc0000000355989e0 sh 29448 29315 29314 0 LV+ *vm obje 0xc00000003322eb40 cc 29447 29446 29446 0 LV+ *vm obje 0xc00000003322eb40 sh 29446 24910 29446 0 D+ ppwait 0xc000000034ace4d0 sh 29445 29444 29444 0 LV+ *vm obje 0xc00000003322eb40 sh 29444 24910 29444 0 D+ ppwait 0xc0000002b6d949e0 sh 29443 29442 29442 0 LV+ *vm obje 0xc00000003322eb40 sh 29442 24910 29442 0 D+ ppwait 0xc0000002bb60d4d0 sh 29441 29440 29440 0 LV+ *vm obje 0xc00000003322eb40 sh 29440 24910 29440 0 D+ ppwait 0xc000000035f949e0 sh 29439 29438 29438 0 L+ *vm obje 0xc00000003322eb40 cc 29438 24910 29438 0 S+ wait 0xc000000036b0a000 sh 29437 29311 29310 0 L+ *vm obje 0xc00000003322eb40 cc db> show lock 0xc00000003322eb40 class: spin mutex name: turnstile lock flags: {SPIN, RECURSE} state: {UNOWNED} db> show turnstile 0xc00000003322eb40 Lock: 0xc000000033569500 - (rw) vm object Lock Owner: none Shared Waiters: empty Exclusive Waiters: 0xc00000002cc5b580 (tid 100770, pid 29263, "cc") 0xc0000002366c1000 (tid 101237, pid 29400, "cc") 0xc0000000775e2000 (tid 103120, pid 29339, "cc") 0xc0000000775d3000 (tid 102984, pid 29410, "cc") 0xc000000077628580 (tid 102225, pid 29391, "cc") 0xc000000050b5e000 (tid 102238, pid 29408, "cc") 0xc00000002cf5d580 (tid 102125, pid 29394, "cc") 0xc0000000a3c12000 (tid 101019, pid 29376, "cc") 0xc00000007762a000 (tid 102221, pid 29389, "cc") 0xc000000236686000 (tid 101265, pid 29445, "sh") 0xc000000050bd5580 (tid 102670, pid 29296, "cc") 0xc000000035f6b000 (tid 102076, pid 29430, "sh") 0xc0000002366fb580 (tid 100898, pid 29434, "sh") 0xc000000034724000 (tid 102209, pid 29455, "cc") 0xc00000002b16b580 (tid 102025, pid 29462, "sh") 0xc00000022dbcd000 (tid 103178, pid 29406, "cc") 0xc00000002dc8f000 (tid 101957, pid 29459, "sh") 0xc000000236655000 (tid 101117, pid 29401, "cc") 0xc0000000357e4580 (tid 102086, pid 29396, "cc") 0xc0000000775be580 (tid 100890, pid 29395, "cc") 0xc0000000294ab000 (tid 102087, pid 29457, "cc") 0xc0000000355ba580 (tid 100978, pid 29450, "sh") 0xc0000002366b5580 (tid 100900, pid 29379, "cc") 0xc000000035ff6000 (tid 102051, pid 29398, "cc") 0xc0000000348d3580 (tid 102243, pid 29452, "sh") 0xc000000236672000 (tid 100915, pid 29428, "cc") 0xc000000034725580 (tid 102059, pid 29448, "cc") 0xc0000000775cb000 (tid 102848, pid 29422, "sh") 0xc00000003a028580 (tid 102073, pid 29374, "cc") 0xc00000003389f580 (tid 102006, pid 29290, "cc") 0xc000000034ac3580 (tid 103090, pid 29447, "sh") 0xc000000034adf000 (tid 100880, pid 29460, "cc") 0xc000000035f9c580 (tid 102034, pid 29441, "sh") 0xc0000000515dc580 (tid 102039, pid 29386, "cc") 0xc00000002b28b000 (tid 100867, pid 29424, "sh") 0xc0000002366e8580 (tid 101152, pid 29362, "cc") 0xc00000022b190000 (tid 102963, pid 29420, "sh") 0xc0000000a03e9580 (tid 102943, pid 29466, "sh") 0xc000000051749000 (tid 102052, pid 29405, "cc") 0xc0000002365d4000 (tid 101254, pid 29409, "sh") 0xc000000236682000 (tid 101001, pid 29416, "sh") 0xc0000000348c9000 (tid 102300, pid 29469, "cc") 0xc00000003a029580 (tid 102032, pid 29388, "cc") 0xc000000035d78000 (tid 100866, pid 29414, "sh") 0xc0000000a02bf000 (tid 101278, pid 29403, "cc") 0xc000000236605580 (tid 100942, pid 29432, "sh") 0xc00000002deee580 (tid 101903, pid 29472, "cc") 0xc0000000a01ea580 (tid 101047, pid 29381, "cc") 0xc0000002365cb580 (tid 100894, pid 29412, "sh") 0xc000000034288000 (tid 101972, pid 29301, "cc") 0xc000000039b8b580 (tid 102868, pid 29377, "sh") 0xc000000034ba1000 (tid 100819, pid 29384, "cc") 0xc0000000515db580 (tid 102135, pid 29436, "sh") 0xc00000022cedc000 (tid 103031, pid 29397, "cc") 0xc000000035c63580 (tid 101927, pid 29456, "cc") 0xc000000039b8f000 (tid 102938, pid 29439, "cc") 0xc00000002cecd580 (tid 102237, pid 29392, "cc") 0xc0000000357a5000 (tid 103034, pid 29426, "sh") 0xc00000002f848580 (tid 102136, pid 29360, "cc") 0xc00000022dbcc000 (tid 103184, pid 29418, "sh") 0xc0000000a03ed580 (tid 101005, pid 29361, "cc") 0xc00000034fb0e580 (tid 101062, pid 29372, "cc") 0xc00000007762b000 (tid 102217, pid 29402, "cc") 0xc000000035561580 (tid 101960, pid 29437, "cc") 0xc0000002366f1580 (tid 100905, pid 29390, "cc") 0xc0000000a0299580 (tid 102852, pid 29393, "cc") 0xc000000236596000 (tid 102373, pid 29443, "sh") 0xc00000002b27c580 (tid 102656, pid 29464, "sh") 0xc0000000a021d580 (tid 103046, pid 29454, "sh") 0xc0000000a3c17580 (tid 100989, pid 29471, "sh") 0xc0000000a3c16580 (tid 102563, pid 29468, "sh") Pending Threads: empty db> show lock 0xc000000033569500 class: rw name: vm object state: RLOCK: 1 locks waiters: writers db>