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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 35622] New: - segmentation fault under heavy load
Date Tue, 05 Jul 2005 23:13:02 GMT
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http://issues.apache.org/bugzilla/show_bug.cgi?id=35622

           Summary: segmentation fault under heavy load
           Product: Apache httpd-2.0
           Version: 2.0.54
          Platform: Sun
        OS/Version: Solaris
            Status: NEW
          Severity: normal
          Priority: P2
         Component: All
        AssignedTo: bugs@httpd.apache.org
        ReportedBy: alnath@gmx.de


I am getting Segmentation Faults with apache 2.0.54 with php-4.3.11.
This happens when I test the web-server with "siege" a load testing and
benchmarking tool. Hundreds of this messages are in the log:
....
[Tue Jul 05 23:40:44 2005] [notice] child pid 1117 exit signal Bus error (10)
[Tue Jul 05 23:40:52 2005] [notice] child pid 1118 exit signal Segmentation
fault (11)
....
I compiled the server with gcc 2.95, running Solaris 9 on a sparc-system.
The same happens with gcc 3.4. 
I start the configure script with the following options:
./configure --prefix=/usr/apache2 --enable-so --enable-ssl --with-mpm=worker

The server produces no coredump, although I put the CoreDumpDirectory Directive
in the conf-file. So I started httpd with gdb, to get a backtrace :

Program received signal SIGSEGV, Segmentation fault.
[Switching to LWP 23]
0xfe907d74 in ?? ()
(gdb) where
#0  0xfe907d74 in ?? ()
#1  0xfe8fac60 in ?? ()
#2  0xfe8fad84 in ?? ()
#3  0xfe8f49c8 in ?? ()
#4  0xfe8f4c0c in ?? ()
#5  0xfe8f4c34 in ?? ()
#6  0xfe9fd4b0 in ?? ()
#7  0xfe9fd72c in ?? ()
#8  0xfea025b8 in ?? ()
#9  0xfe9e6790 in ?? ()
#10 0xfe9af5b4 in ?? ()
#11 0xfea060b0 in ?? ()
#12 0x00063ea0 in ap_run_handler (r=0x4503f0) at config.c:152
#13 0x0006449c in ap_invoke_handler (r=0x4503f0) at config.c:364
#14 0x0004ea40 in ap_process_request (r=0x4503f0) at http_request.c:249
#15 0x00049cec in ap_process_http_connection (c=0x2795b8) at http_core.c:251
#16 0x0006f9e8 in ap_run_process_connection (c=0x2795b8) at connection.c:43
#17 0x0006fcfc in ap_process_connection (c=0x2795b8, csd=0x2794c8) at
connection.c:176
#18 0x00060868 in process_socket (p=0x279490, sock=0x2794c8, my_child_num=0,
my_thread_num=20, bucket_alloc=0x44e3b0)
    at worker.c:521
#19 0x00060f48 in worker_thread (thd=0x13f548, dummy=0x14) at worker.c:835
#20 0xff13609c in ?? ()

 
kind regards

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