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From "Prathima Dandapani -X \(pdandapa - HCL at Cisco\)" <pdand...@cisco.com>
Subject Apache 1.3.41 child processes crashing frequently.
Date Tue, 09 Jun 2009 06:47:00 GMT
Hello All,
 
                I have compiled Apache 1.3.41 + mod_perl + mod_jk +
modssl.Apache child processes are crashing very very frequently and the
error.log is getting filled up with the following message
 
[Tue Jun  9 12:05:38 2009] [notice] child pid 73 exit signal Segmentation
Fault (11), possible coredump in /opt/CSCOpx/MDC/Apache
[Tue Jun  9 12:06:13 2009] [notice] child pid 72 exit signal Segmentation
Fault (11), possible coredump in /opt/CSCOpx/MDC/Apache
[Tue Jun  9 12:06:58 2009] [notice] child pid 209 exit signal Segmentation
Fault (11), possible coredump in /opt/CSCOpx/MDC/Apache
[Tue Jun  9 12:07:00 2009] [notice] child pid 208 exit signal Segmentation
Fault (11), possible coredump in /opt/CSCOpx/MDC/Apache
[Tue Jun  9 12:07:02 2009] [notice] child pid 207 exit signal Segmentation
Fault (11), possible coredump in /opt/CSCOpx/MDC/Apache
[Tue Jun  9 12:07:44 2009] [notice] child pid 213 exit signal Segmentation
Fault (11), possible coredump in /opt/CSCOpx/MDC/Apache
[Tue Jun  9 12:07:46 2009] [notice] child pid 212 exit signal Segmentation
Fault (11), possible coredump in /opt/CSCOpx/MDC/Apache
[Tue Jun  9 12:08:42 2009] [notice] child pid 217 exit signal Segmentation
Fault (11), possible coredump in /opt/CSCOpx/MDC/Apache
[Tue Jun  9 12:09:15 2009] [notice] child pid 221 exit signal Segmentation
Fault (11), possible coredump in /opt/CSCOpx/MDC/Apache
[Tue Jun  9 12:09:17 2009] [notice] child pid 220 exit signal Segmentation
Fault (11), possible coredump in /opt/CSCOpx/MDC/Apache
[Tue Jun  9 12:09:19 2009] [notice] child pid 219 exit signal Segmentation
Fault (11), possible coredump in /opt/CSCOpx/MDC/Apache

 
Stack trace from gdb is as follows:
 
#0  0xff147b60 in t_splay () from /usr/lib/libc.so.1
#1  0xff1478d0 in t_delete () from /usr/lib/libc.so.1
#2  0xff1474f0 in realfree () from /usr/lib/libc.so.1
#3  0xff147d90 in cleanfree () from /usr/lib/libc.so.1
#4  0xff146edc in _malloc_unlocked () from /usr/lib/libc.so.1
#5  0xff146dac in malloc () from /usr/lib/libc.so.1
#6  0x143300 in ?? ()
#7  0x144340 in ?? ()
#8  0x164948 in ?? ()
#9  0x164c44 in ?? ()
#10 0x102174 in ?? ()
#11 0x1021ec in ?? ()
#12 0x165754 in ?? ()
#13 0x1660c4 in ?? ()
#14 0x15db50 in ?? ()
#15 0x15da98 in ?? ()
#16 0x15dca0 in ?? ()
#17 0xf7b98 in ?? ()
#18 0x32308 in ?? ()
#19 0x33b48 in ?? ()
#20 0x3387c in ?? ()
#21 0xb2f40 in ?? ()
#22 0xb06b8 in ?? ()
#23 0xb074c in ?? ()
#24 0xc68e0 in ?? ()
#25 0xc9ae8 in ?? ()
#26 0xc9b20 in ?? ()
#27 0xfee656d0 in __sighndlr () from /usr/lib/libthread.so.1
#28 0xfee5f328 in call_user_handler () from /usr/lib/libthread.so.1
#29 <signal handler called>
#30 0xff19c9b4 in _private_fcntl () from /usr/lib/libc.so.1
#31 0xff196c20 in s_fcntl () from /usr/lib/libc.so.1
#32 0xfee5d9ec in fcntl () from /usr/lib/libthread.so.1
#33 0xc7398 in ?? ()
#34 0xcb808 in ?? ()
#35 0xcc370 in ?? ()
#36 0xcc998 in ?? ()
#37 0xcd340 in ?? ()
#38 0xcdcb4 in ?? ()
 
I have compiled Apache with -g option to get the symbols loaded,but
unfortunately nothing comes up in stack trace.
 
Any thoughts to solve the issue?
Thanks in Advance,
Prathima.

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