Buffer overflow error in apache WebObjects modul
Buffer overflow error in apache WebObjects modul
- Subject: Buffer overflow error in apache WebObjects modul
- From: Michael Graupner <email@hidden>
- Date: Fri, 25 Jan 2013 14:46:48 +0100
Hi guys,
we are experiencing severe problems with Apache/WebObjects Adapter segfaulting on occasion.
This is the stack trace Apache has written into its error log:
*** buffer overflow detected ***: /usr/sbin/apache2 terminated
======= Backtrace: =========
/lib/x86_64-linux-gnu/libc.so.6(__fortify_fail+0x37)[0x7f80ba744807]
/lib/x86_64-linux-gnu/libc.so.6(+0x109700)[0x7f80ba743700]
/lib/x86_64-linux-gnu/libc.so.6(+0x10a7be)[0x7f80ba7447be]
/usr/lib/apache2/modules/mod_WebObjects.so(+0xe3eb)[0x7f80b17013eb]
/usr/lib/apache2/modules/mod_WebObjects.so(+0x120da)[0x7f80b17050da]
/usr/lib/apache2/modules/mod_WebObjects.so(+0x1229d)[0x7f80b170529d]
/usr/lib/apache2/modules/mod_WebObjects.so(ac_readConfiguration+0x2b6)[0x7f80b1706d06]
/usr/lib/apache2/modules/mod_WebObjects.so(init_adaptor+0x2f7)[0x7f80b1704357]
/usr/lib/apache2/modules/mod_WebObjects.so(+0x153ce)[0x7f80b17083ce]
/usr/sbin/apache2(ap_run_post_config+0x61)[0x7f80bb515081]
/usr/sbin/apache2(main+0xc5f)[0x7f80bb50047f]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed)[0x7f80ba65b76d]
/usr/sbin/apache2(+0x2c559)[0x7f80bb500559]
Our deployment stack is the following:
Ubuntu 12.04.1 with 3.2.0-35-generic Kernel
Apache/2.2.22 (Ubuntu)
and a recent version of the WOAdapter compiled from the master branch of the github sources.
Memory stats during normal operation:
total used free shared buffers cached
Mem: 15978 15556 422 0 299 12755
-/+ buffers/cache: 2501 13477
Swap: 9691 0 9691
Anybody else experiencing this problem or having a hint how we can solve it? We have a second, load balanced
machine in an almost similar setup which has no problems at all.
Thanks for your help,
Michael
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