我有一个多线程Windows控制台应用程序。在应用程序中，一些线程＆＃39; priority设置为THREAD_PRIORITY_LOWEST（-2），其余设置为THREAD_PRIORITY_NORMAL（0）。有时，将日志输出到控制台时应用程序会挂起。我使用Windbg调试应用程序，发现挂起是由C运行时库中的printf函数引起的，如下所示。线程0,1和2的优先级为0，其他优先级为-2。线程2是主要启动线程，线程1由Symantec Endpoint Protection（UMEngx86.dll）创建。
0:015> !locks
CritSec MSVCR120D!lclcritsects+120 at 0f3ead80
WaiterWoken No
LockCount 0
RecursionCount 1
OwningThread 2fe8
EntryCount 0
ContentionCount 0
*** Locked
CritSec MSVCR120D!lclcritsects + 138 at 0f3ead98
WaiterWoken No
LockCount 1
RecursionCount 1
OwningThread 21c4
EntryCount 0
ContentionCount 6
* ** Locked
CritSec + 435da4 at 00435da4
WaiterWoken No
LockCount 0
RecursionCount 1
OwningThread 2fe8
EntryCount 0
ContentionCount 0
* ** Locked
CritSec + 435de4 at 00435de4
WaiterWoken No
LockCount 0
RecursionCount 1
OwningThread 21c4
EntryCount 0
ContentionCount 0
* ** Locked
Scanned 186 critical sections
0:015> !cs 0f3ead98
-----------------------------------------
Critical section = 0x0f3ead98 (MSVCR120D!lclcritsects+0x138)
DebugInfo = 0x00439878
LOCKED
LockCount = 0x1
WaiterWoken = No
OwningThread = 0x000021c4
RecursionCount = 0x1
LockSemaphore = 0xA4
SpinCount = 0x00000fa0
0:015> ~* kb
0 Id: 2af8.e9c Suspend: 1 Teb: 7efdd000 Unfrozen
ChildEBP RetAddr Args to Child
002bf460 74e715ce 0000004c 00000000 00000000
ntdll!ZwWaitForSingleObject+0x15
002bf4cc 76631194 0000004c ffffffff 00000000
KERNELBASE!WaitForSingleObjectEx+0x98
002bf4e4 76631148 0000004c ffffffff 00000000
kernel32!WaitForSingleObjectExImplementation+0x75
002bf4f8 011c533d 0000004c ffffffff 002bf6a8
kernel32!WaitForSingleObject+0x12
002bf5d4 011c024a 002bf6ac 002bf6b0 7efde000
demo_threadx!_tx_thread_schedule+0x16d [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_schedule.c @ 180]
002bf6a8 010e10ee 002bf850 00000000 7efde000
demo_threadx!_tx_initialize_kernel_enter+0x6a [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_initialize_kernel_enter.c
@ 186]
002bf77c 010e1023 00000000 00000000 7efde000 demo_threadx!optimus_main+0xae
[c:\cc-views\optimus_r11_ti\optimus\src\sys\main_os.c @ 218]
002bf850 011b87c9 00000001 00437c78 00438c40 demo_threadx!main+0x23 [c:\cc-
views\optimus_r11_ti\optimus\src\win32\demo_optimus.c @ 67]
002bf8a0 011b890d 002bf8b4 7663336a 7efde000
demo_threadx!__tmainCRTStartup+0x199
[f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c @ 626]
002bf8a8 7663336a 7efde000 002bf8f4 77269902 demo_threadx!mainCRTStartup+0xd
[f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c @ 466]
002bf8b4 77269902 7efde000 6218bd9d 00000000
kernel32!BaseThreadInitThunk+0xe
002bf8f4 772698d5 011b8900 7efde000 00000000 ntdll!__RtlUserThreadStart+0x70
002bf90c 00000000 011b8900 7efde000 00000000 ntdll!_RtlUserThreadStart+0x1b
1 Id: 2af8.2934 Suspend: 1 Teb: 7efda000 Unfrozen
ChildEBP RetAddr Args to Child
WARNING: Frame IP not in any known module. Following frames may be wrong.
00b0f7e8 7663336a 00130000 00b0f834 77269902 0x903a3
00b0f7f4 77269902 00130000 6283bd5d 00000000
kernel32!BaseThreadInitThunk+0xe
00b0f834 772698d5 00130064 00130000 00000000 ntdll!__RtlUserThreadStart+0x70
00b0f84c 00000000 00130064 00130000 00000000 ntdll!_RtlUserThreadStart+0x1b
2 Id: 2af8.2e44 Suspend: 1 Teb: 7efd7000 Unfrozen
ChildEBP RetAddr Args to Child
WARNING: Frame IP not in any known module. Following frames may be wrong.
00e0f5fc 69663fd2 80006043 00e0f640 00000010 0x90154
00e0f674 696640d5 69665ef3 00e0f6e0 00e0f6d4 UMEngx86+0x3fd2
00e0f6d8 74e73c8f 00000068 00e0f6f0 00e0f7cc UMEngx86+0x40d5
00e0f6e8 011c7609 00000068 00e0f8a0 00e0f7d4 KERNELBASE!SuspendThread+0x12
00e0f7cc 011c4c2d 00000000 00000000 00437d08
demo_threadx!_tx_thread_context_save+0x79 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_context_save.c @
133]
00e0f8a0 0f2a3651 00000000 164b464c 00000000
demo_threadx!_tx_win32_timer_interrupt+0x3d [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_initialize_low_level.c @
439]
00e0f8dc 0f2a3861 00475d00 00e0f8f4 7663336a
MSVCR120D!_callthreadstartex+0x51
[f:\dd\vctools\crt\crtw32\startup\threadex.c @ 376]
00e0f8e8 7663336a 00475d00 00e0f934 77269902 MSVCR120D!_threadstartex+0xb1
[f:\dd\vctools\crt\crtw32\startup\threadex.c @ 359]
00e0f8f4 77269902 00437d08 62d3bc5d 00000000
kernel32!BaseThreadInitThunk+0xe
00e0f934 772698d5 0f2a37b0 00437d08 00000000 ntdll!__RtlUserThreadStart+0x70
00e0f94c 00000000 0f2a37b0 00437d08 00000000 ntdll!_RtlUserThreadStart+0x1b
3 Id: 2af8.2fe8 Suspend: 1 Teb: 7efaf000 Unfrozen
ChildEBP RetAddr Args to Child
00c9f3ac 766d7b49 00000003 0f3ec700 00001000
kernel32!ReadConsoleInternal+0x15
00c9f434 7665f1f2 00000003 0f3ec700 00001000 kernel32!ReadConsoleA+0x40
00c9f47c 0f370cad 00000003 0f3ec700 00001000
kernel32!ReadFileImplementation+0x75
00c9f530 0f370473 00000000 0f3ec700 00001000 MSVCR120D!_read_nolock+0x7bd
[f:\dd\vctools\crt\crtw32\lowio\read.c @ 256]
00c9f588 0f2b62f6 00000000 0f3ec700 00001000 MSVCR120D!_read+0x253
[f:\dd\vctools\crt\crtw32\lowio\read.c @ 92]
00c9f5b8 0f32aef9 0f3e72f0 00000000 ffffffff MSVCR120D!_filbuf+0x126
[f:\dd\vctools\crt\crtw32\stdio\_filbuf.c @ 158]
00c9f5cc 0f32cc3a 0f3e72f0 00000064 00c9f864 MSVCR120D!_inc+0x49
[f:\dd\vctools\crt\crtw32\stdio\input.c @ 1421]
00c9f5dc 0f32b67e 00c9f6d4 0f3e72f0 00c9f5f8 MSVCR120D!_whiteout+0x1a
[f:\dd\vctools\crt\crtw32\stdio\input.c @ 1438]
00c9f864 0f2bdb7d 0f3e72f0 011c83b9 00000000 MSVCR120D!_input_l+0x76e
[f:\dd\vctools\crt\crtw32\stdio\input.c @ 609]
00c9f8b0 0f2bda2e 0f32af10 011c83b8 00000000 MSVCR120D!vscanf_fn+0xed
[f:\dd\vctools\crt\crtw32\stdio\scanf.c @ 54]
00c9f8cc 010e11af 011c83b8 00c9f9bc 00000000 MSVCR120D!scanf+0x1e
[f:\dd\vctools\crt\crtw32\stdio\scanf.c @ 88]
00c9f9d0 0f2a3651 00000000 1662449c 00000000
demo_threadx!thread_user_input+0x9f [c:\cc-
views\optimus_r11_ti\optimus\src\sys\main_os.c @ 541]
00c9fa0c 0f2a3861 00475918 00c9fa24 7663336a
MSVCR120D!_callthreadstartex+0x51
[f:\dd\vctools\crt\crtw32\startup\threadex.c @ 376]
00c9fa18 7663336a 00475918 00c9fa64 77269902 MSVCR120D!_threadstartex+0xb1
[f:\dd\vctools\crt\crtw32\startup\threadex.c @ 359]
00c9fa24 77269902 004380f0 62fabf0d 00000000
kernel32!BaseThreadInitThunk+0xe
00c9fa64 772698d5 0f2a37b0 004380f0 00000000 ntdll!__RtlUserThreadStart+0x70
00c9fa7c 00000000 0f2a37b0 004380f0 00000000 ntdll!_RtlUserThreadStart+0x1b
4 Id: 2af8.2d84 Suspend: 1 Teb: 7efac000 Unfrozen
ChildEBP RetAddr Args to Child
0102f1e8 74e715ce 0000005c 00000000 00000000
ntdll!ZwWaitForSingleObject+0x15
0102f254 76631194 0000005c ffffffff 00000000
KERNELBASE!WaitForSingleObjectEx+0x98
0102f26c 76631148 0000005c ffffffff 00000000
kernel32!WaitForSingleObjectExImplementation+0x75
0102f280 011c67a8 0000005c ffffffff 0102f4f0
kernel32!WaitForSingleObject+0x12
0102f3a4 011c5a65 0102f634 0102f4fc 004384d8
demo_threadx!_tx_thread_system_return+0x168 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_system_return.c @
201]
0102f4f0 011c79ec 01230580 0102f730 0102f640
demo_threadx!_tx_thread_system_suspend+0x5a5 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_system_suspend.c @
615]
0102f634 011c5ee2 4154494d 0102f810 0102f738
demo_threadx!_tx_timer_thread_entry+0x23c [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_timer_thread_entry.c @
496]
0102f730 011c6121 00000000 00000000 004384d8
demo_threadx!_tx_thread_shell_entry+0x72 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_shell_entry.c @
164]
0102f810 0f2a3651 01230580 17a946dc 00000000
demo_threadx!_tx_win32_thread_entry+0x41 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_stack_build.c @
186]
0102f84c 0f2a3861 004725e0 0102f864 7663336a
MSVCR120D!_callthreadstartex+0x51
[f:\dd\vctools\crt\crtw32\startup\threadex.c @ 376]
0102f858 7663336a 004725e0 0102f8a4 77269902 MSVCR120D!_threadstartex+0xb1
[f:\dd\vctools\crt\crtw32\startup\threadex.c @ 359]
0102f864 77269902 004384d8 6331bdcd 00000000
kernel32!BaseThreadInitThunk+0xe
0102f8a4 772698d5 0f2a37b0 004384d8 00000000 ntdll!__RtlUserThreadStart+0x70
0102f8bc 00000000 0f2a37b0 004384d8 00000000 ntdll!_RtlUserThreadStart+0x1b
5 Id: 2af8.2e18 Suspend: 1 Teb: 7efa9000 Unfrozen
ChildEBP RetAddr Args to Child
013df4e4 74e715ce 00000064 00000000 00000000
ntdll!ZwWaitForSingleObject+0x15
013df550 76631194 00000064 ffffffff 00000000
KERNELBASE!WaitForSingleObjectEx+0x98
013df568 76631148 00000064 ffffffff 00000000
kernel32!WaitForSingleObjectExImplementation+0x75
013df57c 011c67a8 00000064 ffffffff 013df7ec
kernel32!WaitForSingleObject+0x12
013df6a0 011c5a65 013df954 013df970 00471fe8
demo_threadx!_tx_thread_system_return+0x168 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_system_return.c @
201]
013df7ec 011c0de5 01262e20 013dfa4c 013df970
demo_threadx!_tx_thread_system_suspend+0x5a5 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_system_suspend.c @
615]
013df954 010e5b54 01262a80 00000018 00000001
demo_threadx!_tx_event_flags_get+0x205 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_event_flags_get.c @ 402]
013dfa4c 011c5ee2 00000000 013dfc28 013dfb50 demo_threadx!ERR_Task+0x64
[c:\cc-views\optimus_r11_ti\optimus\src\err\errmanager.c @ 482]
013dfb48 011c6121 00000000 00000000 00471fe8
demo_threadx!_tx_thread_shell_entry+0x72 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_shell_entry.c @
164]
013dfc28 0f2a3651 01262e20 179642f4 00000000
demo_threadx!_tx_win32_thread_entry+0x41 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_stack_build.c @
186]
013dfc64 0f2a3861 004729c8 013dfc7c 7663336a
MSVCR120D!_callthreadstartex+0x51
[f:\dd\vctools\crt\crtw32\startup\threadex.c @ 376]
013dfc70 7663336a 004729c8 013dfcbc 77269902 MSVCR120D!_threadstartex+0xb1
[f:\dd\vctools\crt\crtw32\startup\threadex.c @ 359]
013dfc7c 77269902 00471fe8 630eb9d5 00000000
kernel32!BaseThreadInitThunk+0xe
013dfcbc 772698d5 0f2a37b0 00471fe8 00000000 ntdll!__RtlUserThreadStart+0x70
013dfcd4 00000000 0f2a37b0 00471fe8 00000000 ntdll!_RtlUserThreadStart+0x1b
6 Id: 2af8.1b28 Suspend: 1 Teb: 7efa6000 Unfrozen
ChildEBP RetAddr Args to Child
0167f028 7727ebae 000000a4 00000000 00000000
ntdll!ZwWaitForSingleObject+0x15
0167f08c 7727ea92 00000000 00000000 00471fe8
ntdll!RtlpWaitOnCriticalSection+0x13e
0167f0b4 0f29f4db 0f3ead98 0167f0cc 0f2b68a5
ntdll!RtlEnterCriticalSection+0x150
0167f0c0 0f2b68a5 00000011 0167f118 0f2bcf3d MSVCR120D!_lock+0x3b
[f:\dd\vctools\crt\crtw32\startup\mlock.c @ 341]
0167f0cc 0f2bcf3d 00000001 0f3e7310 17cc4f88 MSVCR120D!_lock_file2+0x15
[f:\dd\vctools\crt\crtw32\stdio\_file.c @ 256]
0167f118 01160eda 011d2968 0167f2d0 0167f3c8 MSVCR120D!printf+0xcd
[f:\dd\vctools\crt\crtw32\stdio\printf.c @ 58]
0167f1f4 01134cb8 012396c0 0167f3b4 0167f3c8
demo_threadx!dsysIsaProcessNewMode+0x4aa [c:\cc-
views\optimus_r11_ti\optimus\src\isa\isasys\dsys0isa.c @ 386]
0167f2d0 011344a5 0167f4e8 0167f3c8 00471fe8
demo_threadx!kerHookNoCycExec+0x28 [c:\cc-
views\optimus_r11_ti\optimus\src\isa\isasys\dsys0uhk.c @ 460]
0167f3b4 01120ebb 0167f4a7 0167f4b3 0167f4bc
demo_threadx!kerHookBegScan+0x195 [c:\cc-
views\optimus_r11_ti\optimus\src\isa\isasys\dsys0uhk.c @ 617]
0167f4e8 010e5e2e 00000000 00000000 0167f6c0 demo_threadx!dkerMain+0x1db
[c:\cc-views\optimus_r11_ti\optimus\src\isa\isaker\dker0mai.c @ 1087]
0167f5c4 011c5ee2 00000000 0167f7a0 0167f6c8 demo_threadx!ISA_Task+0x5e
[c:\cc-views\optimus_r11_ti\optimus\src\isa\isamanager.c @ 192]
0167f6c0 011c6121 00000000 00000000 00471fe8
demo_threadx!_tx_thread_shell_entry+0x72 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_shell_entry.c @
164]
0167f7a0 0f2a3651 01263078 17cc494c 00000000
demo_threadx!_tx_win32_thread_entry+0x41 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_stack_build.c @
186]
0167f7dc 0f2a3861 00473198 0167f7f4 7663336a
MSVCR120D!_callthreadstartex+0x51
[f:\dd\vctools\crt\crtw32\startup\threadex.c @ 376]
0167f7e8 7663336a 00473198 0167f834 77269902 MSVCR120D!_threadstartex+0xb1
[f:\dd\vctools\crt\crtw32\startup\threadex.c @ 359]
0167f7f4 77269902 00471fe8 6354bd5d 00000000
kernel32!BaseThreadInitThunk+0xe
0167f834 772698d5 0f2a37b0 00471fe8 00000000 ntdll!__RtlUserThreadStart+0x70
0167f84c 00000000 0f2a37b0 00471fe8 00000000 ntdll!_RtlUserThreadStart+0x1b
7 Id: 2af8.2f74 Suspend: 1 Teb: 7efa3000 Unfrozen
ChildEBP RetAddr Args to Child
0187f6c0 74e715ce 00000074 00000000 00000000
ntdll!ZwWaitForSingleObject+0x15
0187f72c 76631194 00000074 ffffffff 00000000
KERNELBASE!WaitForSingleObjectEx+0x98
0187f744 76631148 00000074 ffffffff 00000000
kernel32!WaitForSingleObjectExImplementation+0x75
0187f758 011c67a8 00000074 ffffffff 0187f9c8
kernel32!WaitForSingleObject+0x12
0187f87c 011c5a65 0187fb30 0187fb4c 00472db0
demo_threadx!_tx_thread_system_return+0x168 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_system_return.c @
201]
0187f9c8 011c0de5 01262bc8 0187fc24 0187fb4c
demo_threadx!_tx_thread_system_suspend+0x5a5 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_system_suspend.c @
615]
0187fb30 010e396a 011d7688 00000005 00000001
demo_threadx!_tx_event_flags_get+0x205 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_event_flags_get.c @ 402]
0187fc24 011c5ee2 00446ba0 0187fe00 0187fd28 demo_threadx!COM_Task+0xba
[c:\cc-views\optimus_r11_ti\optimus\src\com\commanager.c @ 1677]
0187fd20 011c6121 00000000 00000000 00472db0
demo_threadx!_tx_thread_shell_entry+0x72 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_shell_entry.c @
164]
0187fe00 0f2a3651 01262bc8 172c40ac 00000000
demo_threadx!_tx_win32_thread_entry+0x41 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_stack_build.c @
186]
0187fe3c 0f2a3861 00473790 0187fe54 7663336a
MSVCR120D!_callthreadstartex+0x51
[f:\dd\vctools\crt\crtw32\startup\threadex.c @ 376]
0187fe48 7663336a 00473790 0187fe94 77269902 MSVCR120D!_threadstartex+0xb1
[f:\dd\vctools\crt\crtw32\startup\threadex.c @ 359]
0187fe54 77269902 00472db0 63b4bbfd 00000000
kernel32!BaseThreadInitThunk+0xe
0187fe94 772698d5 0f2a37b0 00472db0 00000000 ntdll!__RtlUserThreadStart+0x70
0187feac 00000000 0f2a37b0 00472db0 00000000 ntdll!_RtlUserThreadStart+0x1b
8 Id: 2af8.1edc Suspend: 1 Teb: 7efa0000 Unfrozen
ChildEBP RetAddr Args to Child
01a7f280 74e715ce 0000007c 00000000 00000000
ntdll!ZwWaitForSingleObject+0x15
01a7f2ec 76631194 0000007c ffffffff 00000000
KERNELBASE!WaitForSingleObjectEx+0x98
01a7f304 76631148 0000007c ffffffff 00000000
kernel32!WaitForSingleObjectExImplementation+0x75
01a7f318 011c67a8 0000007c ffffffff 01a7f588
kernel32!WaitForSingleObject+0x12
01a7f43c 011c5a65 01a7f6f0 01a7f70c 00471fe8
demo_threadx!_tx_thread_system_return+0x168 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_system_return.c @
201]
01a7f588 011c0de5 01262c90 01a7f7e4 01a7f70c
demo_threadx!_tx_thread_system_suspend+0x5a5 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_system_suspend.c @
615]
01a7f6f0 010e4338 011d76b0 00000001 00000003
demo_threadx!_tx_event_flags_get+0x205 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_event_flags_get.c @ 402]
01a7f7e4 011c5ee2 0044a3a8 01a7f9c0 01a7f8e8 demo_threadx!COM_TimerTask+0x98
[c:\cc-views\optimus_r11_ti\optimus\src\com\commanager.c @ 1739]
01a7f8e0 011c6121 00000000 00000000 00471fe8
demo_threadx!_tx_thread_shell_entry+0x72 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_shell_entry.c @
164]
01a7f9c0 0f2a3651 01262c90 170c476c 00000000
demo_threadx!_tx_win32_thread_entry+0x41 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_stack_build.c @
186]
01a7f9fc 0f2a3861 00473b78 01a7fa14 7663336a
MSVCR120D!_callthreadstartex+0x51
[f:\dd\vctools\crt\crtw32\startup\threadex.c @ 376]
01a7fa08 7663336a 00473b78 01a7fa54 77269902 MSVCR120D!_threadstartex+0xb1
[f:\dd\vctools\crt\crtw32\startup\threadex.c @ 359]
01a7fa14 77269902 00471fe8 6394bf3d 00000000
kernel32!BaseThreadInitThunk+0xe
01a7fa54 772698d5 0f2a37b0 00471fe8 00000000 ntdll!__RtlUserThreadStart+0x70
01a7fa6c 00000000 0f2a37b0 00471fe8 00000000 ntdll!_RtlUserThreadStart+0x1b
9 Id: 2af8.29c8 Suspend: 1 Teb: 7ef9d000 Unfrozen
ChildEBP RetAddr Args to Child
014ef6a8 74e715ce 00000084 00000000 00000000
ntdll!ZwWaitForSingleObject+0x15
014ef714 76631194 00000084 ffffffff 00000000
KERNELBASE!WaitForSingleObjectEx+0x98
014ef72c 76631148 00000084 ffffffff 00000000
kernel32!WaitForSingleObjectExImplementation+0x75
014ef740 011c67a8 00000084 ffffffff 014ef9b0
kernel32!WaitForSingleObject+0x12
014ef864 011c5a65 014efaf4 014efb08 00471fe8
demo_threadx!_tx_thread_system_return+0x168 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_system_return.c @
201]
014ef9b0 011c261b 01262d58 014efbf4 014efb08
demo_threadx!_tx_thread_system_suspend+0x5a5 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_system_suspend.c @
615]
014efaf4 010e6077 011d76f0 014efbd8 ffffffff
demo_threadx!_tx_queue_receive+0x4db [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_queue_receive.c @ 499]
014efbf4 011c5ee2 0044adb0 014efdd0 014efcf8
demo_threadx!ComDeferred_Task+0x97 [c:\cc-
views\optimus_r11_ti\optimus\src\com\cip\cipapp.c @ 90]
014efcf0 011c6121 00000000 00000000 00471fe8
demo_threadx!_tx_thread_shell_entry+0x72 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_shell_entry.c @
164]
014efdd0 0f2a3651 01262d58 17e5409c 00000000
demo_threadx!_tx_win32_thread_entry+0x41 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_stack_build.c @
186]
014efe0c 0f2a3861 00474170 014efe24 7663336a
MSVCR120D!_callthreadstartex+0x51
[f:\dd\vctools\crt\crtw32\startup\threadex.c @ 376]
014efe18 7663336a 00474170 014efe64 77269902 MSVCR120D!_threadstartex+0xb1
[f:\dd\vctools\crt\crtw32\startup\threadex.c @ 359]
014efe24 77269902 00471fe8 637dbb0d 00000000
kernel32!BaseThreadInitThunk+0xe
014efe64 772698d5 0f2a37b0 00471fe8 00000000 ntdll!__RtlUserThreadStart+0x70
014efe7c 00000000 0f2a37b0 00471fe8 00000000 ntdll!_RtlUserThreadStart+0x1b
10 Id: 2af8.21c4 Suspend: 2 Teb: 7ef9a000 Unfrozen
ChildEBP RetAddr Args to Child
01bbb8f0 76631314 00000007 01bbcdc8 00000002
kernel32!WriteConsoleInternal+0x15
01bbb90c 766312f5 00000007 01bbcdc8 00000002 kernel32!WriteConsoleA+0x18
01bbb928 0f37234c 00000007 01bbcdc8 00000002
kernel32!WriteFileImplementation+0x6f
01bbf5d8 0f3719bc 00000001 01bbf660 00000001 MSVCR120D!_write_nolock+0x90c
[f:\dd\vctools\crt\crtw32\lowio\write.c @ 334]
01bbf628 0f2b6c12 00000001 01bbf660 00000001 MSVCR120D!_write+0x1cc
[f:\dd\vctools\crt\crtw32\lowio\write.c @ 73]
01bbf658 0f330718 0000000a 0f3e7310 01bbf9bc MSVCR120D!_flsbuf+0x2a2
[f:\dd\vctools\crt\crtw32\stdio\_flsbuf.c @ 188]
01bbf670 0f32f54a 0000000a 0f3e7310 01bbf798 MSVCR120D!write_char+0x78
[f:\dd\vctools\crt\crtw32\stdio\output.c @ 2430]
01bbf9bc 0f2bcf81 0f3e7310 011c86d4 00000000 MSVCR120D!_output_l+0x57a
[f:\dd\vctools\crt\crtw32\stdio\output.c @ 1166]
01bbfa10 010e24e4 011c86ac fffffffe 01bbfc00 MSVCR120D!printf+0x111
[f:\dd\vctools\crt\crtw32\stdio\printf.c @ 62]
01bbfb04 011c5ee2 0044e1b8 01bbfce0 01bbfc08 demo_threadx!SYS_Task+0x74
[c:\cc-views\optimus_r11_ti\optimus\src\sys\sysmanager.c @ 1501]
01bbfc00 011c6121 00000000 00000000 00474558
demo_threadx!_tx_thread_shell_entry+0x72 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_shell_entry.c @
164]
01bbfce0 0f2a3651 01262b00 1710438c 00000000
demo_threadx!_tx_win32_thread_entry+0x41 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_stack_build.c @
186]
01bbfd1c 0f2a3861 00474b50 01bbfd34 7663336a
MSVCR120D!_callthreadstartex+0x51
[f:\dd\vctools\crt\crtw32\startup\threadex.c @ 376]
01bbfd28 7663336a 00474b50 01bbfd74 77269902 MSVCR120D!_threadstartex+0xb1
[f:\dd\vctools\crt\crtw32\startup\threadex.c @ 359]
01bbfd34 77269902 00474558 6388b81d 00000000
kernel32!BaseThreadInitThunk+0xe
01bbfd74 772698d5 0f2a37b0 00474558 00000000 ntdll!__RtlUserThreadStart+0x70
01bbfd8c 00000000 0f2a37b0 00474558 00000000 ntdll!_RtlUserThreadStart+0x1b
11 Id: 2af8.296c Suspend: 1 Teb: 7ef97000 Unfrozen
ChildEBP RetAddr Args to Child
01d0f4f8 74e715ce 00000094 00000000 00000000
ntdll!ZwWaitForSingleObject+0x15
01d0f564 76631194 00000094 ffffffff 00000000
KERNELBASE!WaitForSingleObjectEx+0x98
01d0f57c 76631148 00000094 ffffffff 00000000
kernel32!WaitForSingleObjectExImplementation+0x75
01d0f590 011c67a8 00000094 ffffffff 01d0f800
kernel32!WaitForSingleObject+0x12
01d0f6b4 011c5a65 01d0f8fc 01d0f9e0 00471fe8
demo_threadx!_tx_thread_system_return+0x168 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_system_return.c @
201]
01d0f800 011c3e12 01263398 01d0f9d4 01d0f9e0
demo_threadx!_tx_thread_system_suspend+0x5a5 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_system_suspend.c @
615]
01d0f8fc 010e7dbf 0000000a 01d0fad0 01d0f9e0
demo_threadx!_tx_thread_sleep+0xf2 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_sleep.c @ 215]
01d0f9d4 011c5ee2 004521c0 01d0fbb0 01d0fad8
demo_threadx!win_ethernet_task_entry+0x3f [c:\cc-
views\optimus_r11_ti\optimus\src\com\ethernet\enroottask.c @ 2414]
01d0fad0 011c6121 00000000 00000000 00471fe8
demo_threadx!_tx_thread_shell_entry+0x72 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_shell_entry.c @
164]
01d0fbb0 0f2a3651 01263398 177b457c 00000000
demo_threadx!_tx_win32_thread_entry+0x41 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_stack_build.c @
186]
01d0fbec 0f2a3861 00475148 01d0fc04 7663336a
MSVCR120D!_callthreadstartex+0x51
[f:\dd\vctools\crt\crtw32\startup\threadex.c @ 376]
01d0fbf8 7663336a 00475148 01d0fc44 77269902 MSVCR120D!_threadstartex+0xb1
[f:\dd\vctools\crt\crtw32\startup\threadex.c @ 359]
01d0fc04 77269902 00471fe8 63e3b92d 00000000
kernel32!BaseThreadInitThunk+0xe
01d0fc44 772698d5 0f2a37b0 00471fe8 00000000 ntdll!__RtlUserThreadStart+0x70
01d0fc5c 00000000 0f2a37b0 00471fe8 00000000 ntdll!_RtlUserThreadStart+0x1b
12 Id: 2af8.29d8 Suspend: 1 Teb: 7ef94000 Unfrozen
ChildEBP RetAddr Args to Child
01f6f3f8 74e715ce 0000009c 00000000 00000000
ntdll!ZwWaitForSingleObject+0x15
01f6f464 76631194 0000009c ffffffff 00000000
KERNELBASE!WaitForSingleObjectEx+0x98
01f6f47c 76631148 0000009c ffffffff 00000000
kernel32!WaitForSingleObjectExImplementation+0x75
01f6f490 011c67a8 0000009c ffffffff 01f6f700
kernel32!WaitForSingleObject+0x12
01f6f5b4 011c5a65 01f6f868 01f6fb70 00474558
demo_threadx!_tx_thread_system_return+0x168 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_system_return.c @
201]
01f6f700 011c0de5 01263208 01f6f95c 01f6fb70
demo_threadx!_tx_thread_system_suspend+0x5a5 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_system_suspend.c @
615]
01f6f868 010e6d19 012629a0 00000001 00000003
demo_threadx!_tx_event_flags_get+0x205 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_event_flags_get.c @ 402]
01f6f95c 01122943 01f6fb64 01f6fb70 00474558
demo_threadx!ENroot_Event_GetEndOfScan_Event+0x39 [c:\cc-
views\optimus_r11_ti\optimus\src\com\ethernet\enroottask.c @ 2378]
01f6fa30 010e7938 01262800 01f6fc60 01f6fb70
demo_threadx!EN_Start_EthernetApplication+0x23 [c:\cc-
views\optimus_r11_ti\optimus\src\com\ethernet\enapplicationmanger.c @ 133]
01f6fb64 011c5ee2 004529c8 01f6fd40 01f6fc68 demo_threadx!ENroot_Task+0x6e8
[c:\cc-views\optimus_r11_ti\optimus\src\com\ethernet\enroottask.c @ 2157]
01f6fc60 011c6121 00000000 00000000 00474558
demo_threadx!_tx_thread_shell_entry+0x72 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_shell_entry.c @
164]
01f6fd40 0f2a3651 01263208 175d43ec 00000000
demo_threadx!_tx_win32_thread_entry+0x41 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_stack_build.c @
186]
01f6fd7c 0f2a3861 00475530 01f6fd94 7663336a
MSVCR120D!_callthreadstartex+0x51
[f:\dd\vctools\crt\crtw32\startup\threadex.c @ 376]
01f6fd88 7663336a 00475530 01f6fdd4 77269902 MSVCR120D!_threadstartex+0xb1
[f:\dd\vctools\crt\crtw32\startup\threadex.c @ 359]
01f6fd94 77269902 00474558 63c5b8bd 00000000
kernel32!BaseThreadInitThunk+0xe
01f6fdd4 772698d5 0f2a37b0 00474558 00000000 ntdll!__RtlUserThreadStart+0x70
01f6fdec 00000000 0f2a37b0 00474558 00000000 ntdll!_RtlUserThreadStart+0x1b
14 Id: 2af8.2978 Suspend: 1 Teb: 7ef8e000 Unfrozen
ChildEBP RetAddr Args to Child
0197f57c 74e715ce 000000d0 00000000 00000000
ntdll!ZwWaitForSingleObject+0x15
0197f5e8 76631194 000000d0 ffffffff 00000000
KERNELBASE!WaitForSingleObjectEx+0x98
0197f600 76631148 000000d0 ffffffff 00000000
kernel32!WaitForSingleObjectExImplementation+0x75
0197f614 011c67a8 000000d0 ffffffff 0197f884
kernel32!WaitForSingleObject+0x12
0197f738 011c5a65 0197f980 0197fa70 004a1a88
demo_threadx!_tx_thread_system_return+0x168 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_system_return.c @
201]
0197f884 011c3e12 01262888 0197fa64 0197fa70
demo_threadx!_tx_thread_system_suspend+0x5a5 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_system_suspend.c @
615]
0197f980 0111e6a9 0000000a 0197fb60 0197fa70
demo_threadx!_tx_thread_sleep+0xf2 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_sleep.c @ 215]
0197fa64 011c5ee2 01262800 0197fc40 0197fb68
demo_threadx!win_ip_thread_entry+0x39 [c:\cc-
views\optimus_r11_ti\optimus\src\win32\tcp_ip\src\opt_win_netx_wrapper.c @
648]
0197fb60 011c6121 00000000 00000000 004a1a88
demo_threadx!_tx_thread_shell_entry+0x72 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_shell_entry.c @
164]
0197fc40 0f2a3651 01262888 173c42ec 00000000
demo_threadx!_tx_win32_thread_entry+0x41 [c:\cc-
views\optimus_r11_ti\optimus\ext\threadx_win32\tx_thread_stack_build.c @
186]
0197fc7c 0f2a3861 0049fd78 0197fc94 7663336a
MSVCR120D!_callthreadstartex+0x51
[f:\dd\vctools\crt\crtw32\startup\threadex.c @ 376]
0197fc88 7663336a 0049fd78 0197fcd4 77269902 MSVCR120D!_threadstartex+0xb1
[f:\dd\vctools\crt\crtw32\startup\threadex.c @ 359]
0197fc94 77269902 004a1a88 63a4b9bd 00000000
kernel32!BaseThreadInitThunk+0xe
0197fcd4 772698d5 0f2a37b0 004a1a88 00000000 ntdll!__RtlUserThreadStart+0x70
0197fcec 00000000 0f2a37b0 004a1a88 00000000 ntdll!_RtlUserThreadStart+0x1b
答案 0 :(得分：2)
问题不在printf。只有线程6和10正在调用printf;线程10被挂起，线程6在线程10上等待释放CRT锁。
最可能的原因是程序中存在逻辑错误，导致其暂停线程10，尽管Symantec Endpoint Protection也可能导致程序出现故障。由于在进程中挂起线程的固有风险，你也可能会死锁，尽管在这种特殊情况下我找不到明显这个问题的迹象。
如果您发现自己仍然无法自行解决问题并希望获得帮助，请发布包含Minimal, Complete, and Verifiable Example的新问题。
另见：