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From Jeff Trawick <traw...@gmail.com>
Subject Re: [users@httpd] Core dump in Oracle HTTP Server build on Apache 1.3
Date Fri, 12 Apr 2013 11:29:30 GMT
On Fri, Apr 12, 2013 at 2:51 AM, Techienote com <techienote.com@gmail.com>wrote:

> Hi Folks,
>
>
>
> Recently we are facing core dump in Oracle HTTP Server which is build on
> Apache 1.3
>
>
>
> Following is the output of httpd -V command
>
>
> -------------------------------------------------------------------------------------------------------
>
> Server version: Oracle-Application-Server-10g/10.1.3.1.0 Oracle-HTTP-Server
> Server built:   Sep 22 2006 04:35:27
> Server's Module Magic Number: 19990320:18
> Server compiled with....
>  -D EAPI
>  -D EAPI_MM
>  -D EAPI_MM_CORE_PATH="logs/mm"
>  -D HAVE_MMAP
>  -D USE_MMAP_SCOREBOARD
>  -D USE_MMAP_FILES
>  -D HAVE_FCNTL_SERIALIZED_ACCEPT
>  -D HAVE_SYSVSEM_SERIALIZED_ACCEPT
>  -D HAVE_PTHREAD_SERIALIZED_ACCEPT
>  -D DYNAMIC_MODULE_LIMIT=64
>  -D HARD_SERVER_LIMIT=8192
>  -D HTTPD_ROOT="/tmp/apache"
>  -D SUEXEC_BIN="/tmp/apache/bin/suexec"
>  -D DEFAULT_PIDLOG="logs/httpd.pid"
>  -D DEFAULT_SCOREBOARD="logs/httpd.scoreboard"
>  -D DEFAULT_LOCKFILE="logs/httpd.lock"
>  -D DEFAULT_ERRORLOG="logs/error_log"
>  -D TYPES_CONFIG_FILE="conf/mime.types"
>  -D SERVER_CONFIG_FILE="conf/httpd.conf"
>  -D ACCESS_CONFIG_FILE="conf/access.conf"
>  -D RESOURCE_CONFIG_FILE="conf/srm.conf"
>
>
> ------------------------------------------------------------------------------------------------------
>
>
>
> I have tried to run the same using pstack command. Following is the output
> of the pstack command
>
>
>
>
> -------------------------------------------------------------------------------------------------------
>
> core 'core' of 13893:   /ora10gas/OracleAS/Apache/Apache/bin/httpd -d
> /ora10gas/OracleAS/Apach
> -----------------  lwp# 1 / thread# 1  --------------------
>  ff091a28 memcpy   (ffbfc998, fddb2838, ffbff1e4, ffbff1f4, fe0d3d64,
> fe0d3d84) + 104c
>  fe063bbc shmcb_retrieve_session (259f40, fddb2838, ffbff270, 6b63feff,
> 80808080, 1010101) + 118
>  fe063044 ssl_scache_shmcb_retrieve (259f40, ffbff2e0, 20683c, ffbff60c,
> 468740, 468e74) + 7c
>  fe061430 ssl_scache_retrieve (259f40, ffbff360, 0, 0, 46895c, ffbff3a0) +
> f4
>  fe05e8f4 ssl_callback_GetSessionCacheEntry (2000, 33f498, ffffffff,
> ffffffff, ffbff6f8, 4683c4) + 88
>

SSLSessionCache none (or something) will avoid this code/crash, but you'll
likely encounter noticeable performance degradation (client response time
and/or server CPU).  Unless the crash is happening very frequently (i.e.,
severely affecting service) you probably don't want to do that.

You need to get assistance from Oracle.  This is a proprietary SSL toolkit
and proprietary patches to old levels of open source.



>   fe1730bc nzospGetSession (ffbff448, ffbff450, 4683cc, 468740, 468740,
> 45b2cb) + 24
>  f87fdde0 ssl_Hshk_GetSessionID (20, 468909, ffbff534, 4, 468710, 468740)
> + a8
>  f8884274 ssl_Hshk_Priv_GetSessionDBRecord (468710, ffbff53f, ffbff534,
> 468964, 0, 1) + 74
>  f8883f04 ssl_Hshk_Priv_ProcessClientHello (300, 300, 469190, 468710, 0,
> ffbff5b0) + 174
>  f8879d24 STM_ExecuteLine (455238, f906374c, 1001, 469190, 0, 45525c) + 40
>  f8879a94 STM_DoOneCycle (455238, ffbff6dc, 20683c, ffbff60c, 468740,
> 468e74) + 148
>  f88798fc STM_Operate (455238, ffbff6dc, f8882b74, 468710, 46895c, 20683c)
> + 14
>  f87f3f90 ssl_Hshk_HandshakeProceed (468710, 0, 0, 4000, ffbff6f8, 4683c4)
> + b0
>  f87f2a1c ssl_Handshake (468710, 810a0038, 810d0013, 810d0000, ffbff780,
> 4683c4) + 30
>  fe16d80c nzos_Handshake (4683b8, 33f4cc, 434478, fffffff8, 0, 4364b0) + b0
>  fe05ca90 SSL_new_server_side (fe100818, 33f4cc, fe0ec98c, 2400, 2664,
> 4314b0) + 13c
>  fe05c8a0 ssl_hook_NewConnection (431440, 91314, 9b3f0, ffbff8d8, 8c4c0,
> 902ec) + 14c
>  00030538 new_connection (a59e0, 933a0, a5a18, ffbff994, ffbff984, 2) + 12c
>  00031ee4 child_main (90ad4, d8c, e20, a7c, 1800, c00) + 95c
>  00032278 make_child (933a0, 2, 516551db, 10, 1cf4, ff1e8140) + 16c
>  00032358 startup_children (5, 14, 869d8, 1b840, 0, 21cc8) + 8c
>  00032be8 standalone_main (800, 878, c00, d64, 1800, 1a44c) + 28c
>  00033820 main     (c00, dec, 1800, 1a20, 1800, 19ec) + 568
>  000193c0 _start   (0, 0, 0, 0, 0, 0) + 108
> -----------------  lwp# 2 / thread# 2  --------------------
>  ff16e298 __pollsys (fdc1be68, 0, fdc1bed0, 0, 0, 0) + 8
>  ff109abc pselect  (fdc1be68, ff1e6790, ff1e6790, 0, fdc1bed0, 0) + 1c8
>  ff109e34 select   (0, 0, 0, 0, fdc1bf38, fe002394) + a0
>  fe0035d8 swwwcsl_Sleep (ea60, 7, fe012d30, 3645, fdb00200, 1) + 40
>  fe00470c wwccuctp_CleanupThreadProc (42bca0, fdc1c000, 0, 0, fe00465c, 1)
> + b0
>  ff16a9c8 _lwp_start (0, 0, 0, 0, 0, 0)
> -----------------  lwp# 3 / thread# 3  --------------------
>  ff16aa6c __lwp_park (1, 42be50, fdafbe08, 0, 7dc18, 0) + 14
>  ff164ab0 cond_wait_queue (42bdc8, 42be50, fdafbe08, 0, 0, 0) + 4c
>  ff164ef4 cond_wait_common (42bdc8, 42be50, fdafbe08, 0, 0, 0) + 294
>  ff165088 _cond_timedwait (42bdc8, 42be50, fdafbed0, 0, 0, 0) + 34
>  ff16517c cond_timedwait (42bdc8, 42be50, fdafbed0, 0, 0, fdafbed8) + 14
>  f8df683c sltspctimewait (21e658, 3f99e0, 3f99e4, 493e0, 42be50, ff163f48)
> + d4
>  fe0034ac swwwctwe_TimedWaitForEvent (3f99e0, 493e0, fe0121ec, 8, f4240,
> 0) + 40
>  fe000afc wwchmctp_CHMThreadProc (18f4, 1800, 1800, 1800, 1800, 1a3c) + 118
>  ff16a9c8 _lwp_start (0, 0, 0, 0, 0, 0)
>
>
> ------------------------------------------------------------------------------------------------------
>
>
>
> Need your help to analyze further is this issue. Need to understand the
> cause of core dump and how we can fix it. Simultaneously I am also
> raising this with Oracle support but not receiving any proper reply.
>



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Born in Roswell... married an alien...
http://emptyhammock.com/

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