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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 48319] New: Httpd(version: 2.2.6) process crashed on solaris (under load testing)
Date Tue, 01 Dec 2009 15:32:10 GMT
https://issues.apache.org/bugzilla/show_bug.cgi?id=48319

           Summary: Httpd(version: 2.2.6) process crashed on solaris
                    (under load testing)
           Product: APR
           Version: 1.2.11
          Platform: Sun
        OS/Version: Solaris
            Status: NEW
          Severity: critical
          Priority: P2
         Component: APR
        AssignedTo: bugs@apr.apache.org
        ReportedBy: raminder_singh@infosys.com


Created an attachment (id=24653)
 --> (https://issues.apache.org/bugzilla/attachment.cgi?id=24653)
pstack & pflags output

Hi,

An core has been generated while load testing the product having Apache web
server (version: 2.2.6) on Solaris OS. Httpd process crashed on one of the
machines after about 4hrs. 

Flag details are:
core 'core1' of 8625:    .../httpd/bin/httpd
 data model = _ILP32
 /19:    flags = PR_PCINVAL
  sigmask = 0xfffffeff,0x00003fff  cursig = SIGSEGV
 /20:    flags = PR_STOPPED 
 why = PR_SUSPENDED
 sigmask = 0x7fbe6007,0x00003ff6
 /21:    flags = PR_STOPPED
  why = PR_SUSPENDED
  sigmask = 0x7fbe6007,0x00003ff6
  /22:    flags = PR_STOPPED
  why = PR_SUSPENDED
  sigmask = 0x7fbe6007,0x00003ff6
.......

Stack looks like below:
core 'core1' of 8625:    ..../httpd/bin/httpd 
-----------------  lwp# 19 / thread# 19  --------------------
ff268fac apr_pvsprintf (6e740098, fed86b34, fd87a85c, 0, 0, 0) + 2c
ff269300 apr_psprintf (6e740098, fed86b34, c8, 35b1cd, 2a03af, ff0204ec) + 38
fed51df8 ws_start_response (fd87ba94, c8, 35b1cd, 202448, 202450, 1) + a0
 fed7d598 ajp_process_callback (202418, 202430, 2023e0, fd87ba94, 0, ff00) +
1b8
 fed7e040 ajp_get_reply (20440c, fd87ba94, 0, 2023e0, fd87a9f8, ff0000) + 3d0
 fed7e8bc ajp_service (20440c, fd87ba94, 0, fd87bb5c, 6c657400, 6c657400) + 4cc
 fed5647c jk_handler (326cd0, 0, 25, 0, fd87bb84, ff00) + 954
 0005a47c ap_run_handler (326cd0, 0, 326cd0, 265468, 0, 0) + 74
 0005b158 ap_invoke_handler (326cd0, 0, 4, 326cd0, 0, 326e81) + 1b8
 00076810 ap_process_request (326cd0, 4, 326cd0, 265468, 265468, feea0a84) + 80
 00072180 ap_process_http_connection (265468, 265378, 265378, fffffff8, 0,
2654cd) + 88
 00066de4 ap_run_process_connection (265468, 265378, 265378, 90, 265460,
324c90) + 74
 0006747c ap_process_connection (265468, 265378, 265378, 90, 265460, 324c90) +
94
 0007e50c process_socket (265338, 265378, 2, 10, 324c90, 0) + c4
 0007f158 worker_thread (162928, 1f6960, 0, 0, 0, 0) + 300
 ff27bb8c dummy_worker (162928, 0, 0, 0, 0, 0) + 24
 ff0b5854 _lwp_start (0, 0, 0, 0, 0, 0)

More apache details are:
Server version: Apache/2.2.6 
Server built:   Jul 29 2009 15:00:58
Server's Module Magic Number: 20051115:5
Server loaded:  APR 1.2.11, APR-Util 1.2.10
Compiled using: APR 1.2.11, APR-Util 1.2.10
Architecture:   32-bit
  threaded:     yes (fixed thread count)
    forked:     no
Server compiled with....
 -D APACHE_MPM_DIR="server/mpm/winnt"
 -D APR_HAS_SENDFILE
 -D APR_HAS_MMAP
 -D APR_HAVE_IPV6 (IPv4-mapped addresses disabled)
 -D APR_HAS_OTHER_CHILD
 -D AP_HAVE_RELIABLE_PIPED_LOGS
 -D DYNAMIC_MODULE_LIMIT=128
 -D HTTPD_ROOT="/apache"
 -D SUEXEC_BIN="/apache/bin/suexec"
 -D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
 -D DEFAULT_ERRORLOG="logs/error.log"
 -D AP_TYPES_CONFIG_FILE="conf/mime.types"
 -D SERVER_CONFIG_FILE="conf/httpd.conf"

Can you please provide more insight about what can be the potential causes for
this core?


thanks
Raminder Singh

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