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From Henri Gomez <hgo...@apache.org>
Subject Re: mod_deflate thread safe ?
Date Tue, 17 Dec 2002 09:15:33 GMT
Brian Pane wrote:
> Henri Gomez wrote:
> 
>> I played with mod_deflate with Apache 2.0.39 on one of
>> my iSeries and got Apache exit due to Thread Errors.
>>
>> Did there is known problem with deflate present in 2.0.39,
>> which has been solved in 2.0.43 and later ?

Hum, it may be related to mod_jk/mod_deflate.

Here is was I got from my iSeries logs :

User Trace Dump for job 810710/QTMHHTTP/APACHEDFT. Size: 300K, Wrapped 1 
times.
--- 12/16/2002 11:53:29 --- 

     000000E3:406904 Stack:  QSYS       / QP0ZCPA     QP0ZUDBG    477 
: Qp0zDumpStack
     000000E3:406928 Stack:  QSYS       / QP0ZSCPA    QP0ZSCPA    1682 
: Qp0zSUDumpStack
     000000E3:406944 Stack:  QSYS       / QP0ZSCPA    QP0ZSCPA    1693 
: Qp0zSUDumpTargetStack
     000000E3:406944 Stack:  Completed 

--- 12/16/2002 11:53:35 --- 

  000000E0:158016 C5275D984C:003720 L:00D0 mpmt_pthread.c:Exception 
handler threads communications area
000000E0:158536 Stack Dump For Current Thread 

000000E0:158536 Stack:  mpmt_pthread.c:request thread exception 

000000E0:158624 Stack:  Library    / Program     Module      Stmt 
Procedure
000000E0:158656 Stack:  QSYS       / QLESPI      QLECRTTH    1112  : 
LE_Create_Thread2__FP12crtth_parm_t
000000E0:158672 Stack:  QSYS       / QP0WPINT    QP0WSPTHR   2459  : 
pthread_create_part2
000000E0:158696 Stack:  QHTTPSVR   / QZSRAPR     THREAD      2     : 
dummy_worker
000000E0:158712 Stack:  QHTTPSVR   / QZSRCORE    MPMT_PTHRE  16    : 
request_thread
000000E0:158728 Stack:  QHTTPSVR   / QZSRCORE    HTTP_ASYNC  25    : 
ap_process_IOCP
000000E0:163824 Stack:  QHTTPSVR   / QZSRCORE    HTTP_REQUE  19    : 
ap_process_request
000000E0:163848 Stack:  QHTTPSVR   / QZSRCORE    HTTP_CONFI  20    : 
ap_invoke_handler
000000E0:163856 Stack:  QHTTPSVR   / QZSRCORE    HTTP_CONFI  5     : 
ap_run_handler
000000E0:163880 Stack:  QHTTPSVR   / MOD_JK      MOD_JK      48    : 
jk_handler
000000E0:171096 Stack:  QSYS       / QMHPDEH                 282   : 

000000E0:171120 Stack:  QHTTPSVR   / QZSRCORE    MPMT_PTHRE  1     : 
Request_Thread_Excp_Handler
000000E0:171136 Stack:  QHTTPSVR   / QZSRCORE    MPMT_PTHRE  18    : 
Common_Thread_Excp_Handler_Code
000000E0:171152 Stack:  QHTTPSVR   / QZSRAPR     OS400TRACE  1     : 
apr_dstack
000000E0:171176 Stack:  QSYS       / QP0ZCPA     QP0ZUDBG    477   : 
Qp0zDumpStack

I'll forward it to my correspondant in IBM Rochester Labs for study :)



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