Re: [Tcl-Threads] Interpreter crashes when using thread pools

[Ken M. <ken...@sp...>]

Upgrading to the latest CVS version of tcl, and the latest CVS  
version of the Thread package, seems to have resolved the problem.

On 30-Jun-10, at 3:45 PM, Ken Mackay wrote:

> I got some slightly different crash output. Another possibly useful  
> piece of information is that the crash only seems to occur on OS X  
> 10.6 (tcl version 8.5.7) - it never happens on 10.5 or 10.4 (tcl  
> version 8.4.7).
>
> Process:         tclsh8.5 [76013]
> Path:            /System/Library/Frameworks/Tcl.framework/Versions/ 
> 8.5/tclsh8.5
> Identifier:      tclsh8.5
> Version:         ??? (???)
> Code Type:       X86-64 (Native)
> Parent Process:  tclsh8.5 [76012]
>
> Date/Time:       2010-06-30 15:36:33.386 -0700
> OS Version:      Mac OS X 10.6.3 (10D573)
> Report Version:  6
>
> Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
> Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000000
> Crashed Thread:  2
>
> Thread 0:  Dispatch queue: com.apple.libdispatch-manager
> 0   libSystem.B.dylib                   0x00007fff863d04ea kevent + 10
> 1   libSystem.B.dylib                   0x00007fff863d23bd  
> _dispatch_mgr_invoke + 154
> 2   libSystem.B.dylib                   0x00007fff863d2094  
> _dispatch_queue_invoke + 185
> 3   libSystem.B.dylib                   0x00007fff863d1bbe  
> _dispatch_worker_thread2 + 252
> 4   libSystem.B.dylib                   0x00007fff863d14e8  
> _pthread_wqthread + 353
> 5   libSystem.B.dylib                   0x00007fff863d1385  
> start_wqthread + 13
>
> Thread 1:
> 0   libSystem.B.dylib                   0x00007fff863d130a  
> __workq_kernreturn + 10
> 1   libSystem.B.dylib                   0x00007fff863d171c  
> _pthread_wqthread + 917
> 2   libSystem.B.dylib                   0x00007fff863d1385  
> start_wqthread + 13
>
> Thread 2 Crashed:
> 0   libSystem.B.dylib                   0x00007fff863bce04  
> pthread_mutex_unlock + 19
> 1   Tcl                                 0x000000010004b046  
> Tcl_FinalizeThread + 77
> 2   Tcl                                 0x00000001000928f1  
> Tcl_ExitThread + 16
> 3   libthread2.6.6.dylib                0x00000001001cad6f  
> TpoolWorker + 912
> 4   libSystem.B.dylib                   0x00007fff863f08b6  
> _pthread_start + 331
> 5   libSystem.B.dylib                   0x00007fff863f0769  
> thread_start + 13
>
> Thread 2 crashed with X86 Thread State (64-bit):
>   rax: 0x0000000000000000  rbx: 0x0000000000000000  rcx:  
> 0x0000000000000000  rdx: 0x00000001000edcd8
>   rdi: 0x0000000000000000  rsi: 0x0000000000000000  rbp:  
> 0x0000000100786e10  rsp: 0x0000000100786e00
>    r8: 0x00000001000ed6a8   r9: 0x0000000100500080  r10:  
> 0x00000001005003d0  r11: 0x0000000000000002
>   r12: 0x00000001010a8f90  r13: 0x0000000100b40810  r14:  
> 0x00000001001d1260  r15: 0x0000000100b40848
>   rip: 0x00007fff863bce04  rfl: 0x0000000000010206  cr2:  
> 0x0000000000000000
>
>
>
>
> Process:         tclsh8.5 [75513]
> Path:            /System/Library/Frameworks/Tcl.framework/Versions/ 
> 8.5/tclsh8.5
> Identifier:      tclsh8.5
> Version:         ??? (???)
> Code Type:       X86-64 (Native)
> Parent Process:  tclsh8.5 [75511]
>
> Date/Time:       2010-06-30 15:34:29.767 -0700
> OS Version:      Mac OS X 10.6.3 (10D573)
> Report Version:  6
>
> Exception Type:  EXC_CRASH (SIGABRT)
> Exception Codes: 0x0000000000000000, 0x0000000000000000
> Crashed Thread:  3
>
> Application Specific Information:
> abort() called
>
> Thread 0:  Dispatch queue: com.apple.main-thread
> 0   libSystem.B.dylib                   0x00007fff863c9d39  
> pthread_key_delete + 82
> 1   Tcl                                 0x00000001000a90cd  
> Tcl_MutexUnlock + 191
> 2   Tcl                                 0x000000010004b31f  
> Tcl_Finalize + 249
> 3   Tcl                                 0x000000010004b414 Tcl_Exit  
> + 89
> 4   Tcl                                 0x000000010001c0c1  
> Tcl_Alloc + 8021
> 5   Tcl                                 0x0000000100016559  
> Tcl_CreateInterp + 4820
> 6   Tcl                                 0x000000010004e2eb  
> TclStackAlloc + 6637
> 7   Tcl                                 0x0000000100054fae  
> TclStackAlloc + 34480
> 8   Tcl                                 0x0000000100017ad7  
> TclEvalObjEx + 714
> 9   Tcl                                 0x000000010007339c Tcl_Main  
> + 2237
> 10  tclsh                               0x00000001000019d0  
> 0x100000000 + 6608
> 11  tclsh                               0x0000000100001978  
> 0x100000000 + 6520
>
> Thread 1:  Dispatch queue: com.apple.libdispatch-manager
> 0   libSystem.B.dylib                   0x00007fff863d04ea kevent + 10
> 1   libSystem.B.dylib                   0x00007fff863d23bd  
> _dispatch_mgr_invoke + 154
> 2   libSystem.B.dylib                   0x00007fff863d2094  
> _dispatch_queue_invoke + 185
> 3   libSystem.B.dylib                   0x00007fff863d1bbe  
> _dispatch_worker_thread2 + 252
> 4   libSystem.B.dylib                   0x00007fff863d14e8  
> _pthread_wqthread + 353
> 5   libSystem.B.dylib                   0x00007fff863d1385  
> start_wqthread + 13
>
> Thread 2:
> 0   libSystem.B.dylib                   0x00007fff863fb286 select 
> $DARWIN_EXTSN + 10
> 1   Tcl                                 0x00000001000abd86  
> Tcl_InitNotifier + 1520
> 2   libSystem.B.dylib                   0x00007fff863f08b6  
> _pthread_start + 331
> 3   libSystem.B.dylib                   0x00007fff863f0769  
> thread_start + 13
>
> Thread 3 Crashed:
> 0   libSystem.B.dylib                   0x00007fff8642a01e  
> __semwait_signal_nocancel + 10
> 1   libSystem.B.dylib                   0x00007fff86429f20 nanosleep 
> $NOCANCEL + 129
> 2   libSystem.B.dylib                   0x00007fff86486902 usleep 
> $NOCANCEL + 57
> 3   libSystem.B.dylib                   0x00007fff864a5eb8 abort + 93
> 4   Tcl                                 0x000000010007cbb8  
> Tcl_Panic + 0
> 5   Tcl                                 0x000000010007cc5a  
> Tcl_Panic + 162
> 6   Tcl                                 0x0000000100059dbe  
> Tcl_DeleteHashTable + 250
> 7   Tcl                                 0x0000000100093a2f  
> TclpRealloc + 1006
> 8   Tcl                                 0x0000000100093b2e  
> TclpRealloc + 1261
> 9   Tcl                                 0x0000000100092b84  
> Tcl_GetThreadData + 31
> 10  Tcl                                 0x000000010007bd36  
> TclFreeObj + 101
> 11  Tcl                                 0x0000000100086689  
> TclProcCleanupProc + 42
> 12  Tcl                                 0x0000000100013124  
> Tcl_DeleteCommandFromToken + 187
> 13  Tcl                                 0x00000001000749f7  
> TclTeardownNamespace + 70
> 14  Tcl                                 0x0000000100013d5e  
> Tcl_DeleteInterp + 209
> 15  libthread2.6.6.dylib                0x00000001001cad64  
> TpoolWorker + 901
> 16  libSystem.B.dylib                   0x00007fff863f08b6  
> _pthread_start + 331
> 17  libSystem.B.dylib                   0x00007fff863f0769  
> thread_start + 13
>
> Thread 4:
> 0   libSystem.B.dylib                   0x00007fff863b7796  
> semaphore_wait_trap + 10
> 1   libSystem.B.dylib                   0x00007fff863bcd2e  
> pthread_mutex_lock + 534
> 2   Tcl                                 0x0000000100085ff6  
> Tcl_EventuallyFree + 31
> 3   Tcl                                 0x00000001000747d2  
> Tcl_SetEnsembleMappingDict + 737
> 4   Tcl                                 0x0000000100013124  
> Tcl_DeleteCommandFromToken + 187
> 5   Tcl                                 0x00000001000749f7  
> TclTeardownNamespace + 70
> 6   Tcl                                 0x0000000100013d5e  
> Tcl_DeleteInterp + 209
> 7   libthread2.6.6.dylib                0x00000001001cad64  
> TpoolWorker + 901
> 8   libSystem.B.dylib                   0x00007fff863f08b6  
> _pthread_start + 331
> 9   libSystem.B.dylib                   0x00007fff863f0769  
> thread_start + 13
>
> Thread 3 crashed with X86 Thread State (64-bit):
>   rax: 0x000000000000003c  rbx: 0x0000000100703ae0  rcx:  
> 0x0000000100703a98  rdx: 0x0000000000000001
>   rdi: 0x0000000000000c03  rsi: 0x0000000000000000  rbp:  
> 0x0000000100703ad0  rsp: 0x0000000100703a98
>    r8: 0x0000000000000000   r9: 0x0000000000989680  r10:  
> 0x0000000000000001  r11: 0x0000000000000246
>   r12: 0x0000000000000000  r13: 0x00000001000b66b7  r14:  
> 0x00000001000b669c  r15: 0x0000000000000021
>   rip: 0x00007fff8642a01e  rfl: 0x0000000000000247  cr2:  
> 0x00007fff70d36b50
>
>
> -Ken
>
>