| 1 | kdebug> message
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| 2 | Invalid concurrent access to page %p (check), currently accessed by: %ld
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| 3 |
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| 4 | kdebug> bt
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| 5 | stack trace for thread 10 "page daemon"
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| 6 | kernel stack: 0x8016c000 to 0x80170000
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| 7 | frame caller <image>:function + offset
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| 8 | 0 8016fb9c (+ 48) 8006fa30 <kernel_x86> invoke_command_trampoline(0x8016fc34) + 0x001c
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| 9 | 1 8016fbcc (+ 12) 800f8744 <kernel_x86>:arch_debug_call_with_fault_handler + 0x001b
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| 10 | 2 8016fbd8 (+ 48) 8006ec00 <kernel_x86>:debug_call_with_fault_handler + 0x0060
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| 11 | 3 8016fc08 (+ 64) 8006fc89 <kernel_x86>:invoke_debugger_command + 0x00b9
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| 12 | 4 8016fc48 (+ 64) 8006fab5 <kernel_x86> invoke_pipe_segment(debugger_command_pipe*: 0x852e9030, int32: 0, 0x0 "<NULL>") + 0x0079
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| 13 | 5 8016fc88 (+ 64) 8006fdf4 <kernel_x86>:invoke_debugger_command_pipe + 0x009c
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| 14 | 6 8016fcc8 (+ 48) 800717ac <kernel_x86> ExpressionParser<0x8016fd78>::_ParseCommandPipe(0x8016fd74) + 0x0234
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| 15 | 7 8016fcf8 (+ 64) 80070be6 <kernel_x86> ExpressionParser<0x8016fd78>::EvaluateCommand(0x8014bce0 "bt", 0x8016fd74) + 0x02ba
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| 16 | 8 8016fd38 (+ 224) 80072bc0 <kernel_x86>:evaluate_debug_command + 0x0080
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| 17 | 9 8016fe18 (+ 64) 8006d6fe <kernel_x86> kernel_debugger_loop(0x8012bbd7 "PANIC: ", 0x8013b7c0 "Invalid concurrent access to page %p (check), currently accessed by: %ld", 0x8016fec4 "Ü", int32: 0) + 0x02de
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| 18 | 10 8016fe58 (+ 48) 8006d958 <kernel_x86> kernel_debugger_internal(0x8012bbd7 "PANIC: ", 0x8013b7c0 "Invalid concurrent access to page %p (check), currently accessed by: %ld", 0x8016fec4 "Ü", int32: 0) + 0x0048
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| 19 | 11 8016fe88 (+ 48) 8006ed98 <kernel_x86>:panic + 0x0024
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| 20 | 12 8016feb8 (+ 64) 800e3c9c <kernel_x86>:vm_page_requeue + 0x0060
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| 21 | 13 8016fef8 (+ 64) 800e0a38 <kernel_x86> idle_scan_active_pages(page_stats&:0x8016ffc4) + 0x0078
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| 22 | 14 8016ff38 (+ 64) 800e15da <kernel_x86> page_daemon_idle_scan(page_stats&: 0x8016ffc4) + 0x0072
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| 23 | 15 8016ff78 (+ 96) 800e16fa <kernel_x86> page_daemon(NULL) + 0x0092
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| 24 | 16 8016ffd8 (+ 32) 80060f6f <kernel_x86> _create_kernel_thread_kentry() + 0x001b
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| 25 | 17 8016fff8 (+2145976328) 80060f0c <kernel_x86> thread_kthread_exit() + 0x0000
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| 26 |
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| 27 | kdebug> page -m 0x8300dc84
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| 28 | PAGE: 0x8300dc84
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| 29 | queue_next,prev: 0x83009dc8, 0x00000000
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| 30 | physical_number: 0x503
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| 31 | cache: 0xccd4b660
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| 32 | cache_offset: 0
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| 33 | cache_next: 0x8300dcb0
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| 34 | state: active
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| 35 | wired_count: 0
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| 36 | usage_count: 8
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| 37 | busy: 1
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| 38 | busy_writing: 0
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| 39 | accessed: 0
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| 40 | modified: 0
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| 41 | accessor: -1
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| 42 | area mappings:
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| 43 | 0xcd945500 (1895)
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| 44 | 0xccd66460 (1858)
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| 45 | 0xce53f730 (1801)
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| 46 | 0xccd62fa0 (1772)
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| 47 | 0xcd93bd70 (1739)
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| 48 | 0xccd621e0 (1732)
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| 49 | 0xcd93ba50 (1697)
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| 50 | 0xccd628c0 (1659)
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| 51 | 0xccd55050 (1547)
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| 52 | 0x82029b40 (1451)
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| 53 | 0x82029640 (1395)
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| 54 | 0xcd9259b0 (1156)
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| 55 | 0xce519a00 (1143)
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| 56 | 0xcd925910 (1098)
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| 57 | 0xcd925460 (1003)
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| 58 | 0xccd3e870 (742)
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| 59 | all mappings:
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| 60 | aspace 1, area 3: 0x81035000 (rw accessed)
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| 61 | aspace 1, area 3: 0x81077000 (rw accessed)
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| 62 | aspace 53, area 742: 0x100000 (r-)
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| 63 | aspace 62, area 1003: 0x100000 (r-)
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| 64 | aspace 69, area 1098: 0x100000 (r-)
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| 65 | aspace 70, area 1143: 0x100000 (r-)
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| 66 | aspace 71, area 1156: 0x100000 (r-)
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| 67 | aspace 83, area 1395: 0x100000 (r-)
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| 68 | aspace 92, area 1451: 0x100000 (r-)
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| 69 | aspace 103, area 1547: 0x100000 (r-)
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| 70 | aspace 110, area 1659: 0x100000 (r-)
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| 71 | aspace 111, area 1697: 0x100000 (r-)
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| 72 | aspace 113, area 1739: 0x100000 (r-)
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| 73 | aspace 114, area 1732: 0x100000 (r-)
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| 74 | aspace 115, area 1772: 0x100000 (r-)
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| 75 | aspace 116, area 1801: 0x100000 (r-)
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| 76 | aspace 117, area 1858: 0x100000 (r-)
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| 77 | aspace 118, area 1895: 0x100000 (r-)
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| 78 |
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| 79 | kdebug> info
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| 80 | kernel build: Feb 20 2010 16:02:41
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| 81 | SVN revision: 35537
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| 82 |
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| 83 | cpu count: 4, active times:
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| 84 | [1] 697396
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| 85 | [2] 2788286
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| 86 | [3] 1082799
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| 87 | [4] 2571001
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| 88 | pages: 34441 (786144 max)
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| 89 | sems: 469 (65536 max)
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| 90 | ports: 47 (4096 max)
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| 91 | threads: 83 (4096 max)
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| 92 | teams: 19 (2048 max)
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