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From Manjula Peiris <manj...@wso2.com>
Subject Re: segfault in apr_rmm_free after installing 1.4.0
Date Thu, 08 May 2008 16:34:26 GMT
Yes you should be using shared memory. What are your mpm settings . You
can check it using,
./httpd -l

Thanks,
-Manjula.


On Thu, 2008-05-08 at 19:07 +0530, Samisa Abeysinghe wrote:
> Are you using shared memory model? If so, could you please try without that?
> 
> Thanks,
> Samisa...
> 
> Michael Ryan wrote:
> >
> >  
> >
> > This occurs during apache start-up is after an upgrade from 1.3.0 to 
> > 1.4.0 (apache 2.2.3) rampart/c installed.
> >
> >  
> >
> > s100:/usr/lib/apache2 # gdb httpd2
> >
> > GNU gdb 6.6
> >
> > Copyright (C) 2006 Free Software Foundation, Inc.
> >
> > Using host libthread_db library "/lib/libthread_db.so.1".
> >
> > (gdb) set pag off
> >
> > (gdb) set args -X -k start
> >
> > (gdb) run
> >
> > Starting program: /usr/sbin/httpd2 -X -k start
> >
> > (no debugging symbols found)
> >
> > (no debugging symbols found)
> >
> > [Thread debugging using libthread_db enabled]
> >
> > [New Thread -1213916384 (LWP 32270)]
> >
> > (no debugging symbols found)
> >
> > (no debugging symbols found)
> >
> >  
> >
> > Program received signal SIGSEGV, Segmentation fault.
> >
> > [Switching to Thread -1213916384 (LWP 32270)]
> >
> > 0xb7ed338e in apr_rmm_free () from /usr/lib/libaprutil-1.so.0
> >
> > (gdb) backtrace
> >
> > #0  0xb7ed338e in apr_rmm_free () from /usr/lib/libaprutil-1.so.0
> >
> > #1  0xb7743296 in axis2_module_free (allocator=0xb39b8028, ptr=0x0) at 
> > mod_axis2.c:430
> >
> > #2  0xb75630f2 in axiom_stax_builder_process_namespaces 
> > (om_builder=0xb39b9c28, env=0xb39b82f8, node=0xb39be0d0, 
> > is_soap_element=0) at om_stax_builder.c:481
> >
> > #3  0xb756397c in axiom_stax_builder_create_om_element 
> > (om_builder=0xb39b9c28, env=0xb39b82f8, is_empty=0) at 
> > om_stax_builder.c:579
> >
> > #4  0xb7563c6b in axiom_stax_builder_next (om_builder=0xb39b9c28, 
> > env=0xb39b82f8) at om_stax_builder.c:822
> >
> > #5  0xb755a589 in axiom_document_build_next (document=0xb39b9ce8, 
> > env=0xb39b82f8) at om_document.c:118
> >
> > #6  0xb755a621 in axiom_document_get_root_element 
> > (document=0xb39b9ce8, env=0xb39b82f8) at om_document.c:151
> >
> > #7  0xb755a749 in axiom_document_build_all (document=0xb39b9ce8, 
> > env=0xb39b82f8) at om_document.c:197
> >
> > #8  0xb75a6a83 in axis2_desc_builder_build_om 
> > (desc_builder=0xb39b97b8, env=0xb39b82f8) at desc_builder.c:206
> >
> > #9  0xb75b1063 in axis2_conf_builder_populate_conf 
> > (conf_builder=0xb39b97a0, env=0xb39b82f8) at conf_builder.c:157
> >
> > #10 0xb75a9ed3 in axis2_dep_engine_load (dep_engine=0xb39b8338, 
> > env=0xb39b82f8) at dep_engine.c:747
> >
> > #11 0xb75b388c in axis2_build_conf_ctx (env=0xb39b82f8, 
> > repo_name=0x80145e38 "/usr/local/axis2c") at conf_init.c:61
> >
> > #12 0xb7745bdf in axis2_apache2_worker_create (env=0xb39b82f8, 
> > repo_path=0x80145e38 "/usr/local/axis2c") at apache2_worker.c:65
> >
> > #13 0xb7743036 in axis2_post_config (pconf=0x8005b0a8, 
> > plog=0x80089160, ptemp=0x8005f0b8, svr_rec=0x8005cf48) at mod_axis2.c:567
> >
> > #14 0x8002f603 in ap_run_post_config () from /usr/sbin/httpd2
> >
> > #15 0x8001af4d in main () from /usr/sbin/httpd2
> >
> > (gdb)
> >
> > (gdb) i r
> >
> > eax            0x8015c3e8     -2146057240
> >
> > ecx            0xb39b8008     -1281654776
> >
> > edx            0x4c647fe8     1281654760
> >
> > ebx            0xb7ed8368     -1209171096
> >
> > esp            0xbfe162d0     0xbfe162d0
> >
> > ebp            0xbfe162e8     0xbfe162e8
> >
> > esi            0xfffffff0     -16
> >
> > edi            0x8015c3e8     -2146057240
> >
> > eip            0xb7ed338e     0xb7ed338e <apr_rmm_free+62>
> >
> > eflags         0x10296  [ PF AF SF IF RF ]
> >
> > cs             0x73     115
> >
> > ss             0x7b     123
> >
> > ds             0x7b     123
> >
> > es             0x7b     123
> >
> > fs             0x0      0
> >
> > gs             0x33     51
> >
> >  
> >
> >  
> >
> > (gdb) x /20i $eip
> >
> > 0xb7ed338e <apr_rmm_free+62>: mov    0x4(%esi),%eax
> >
> > 0xb7ed3391 <apr_rmm_free+65>: test   %eax,%eax
> >
> > 0xb7ed3393 <apr_rmm_free+67>: je     0xb7ed3420 <apr_rmm_free+208>
> >
> > 0xb7ed3399 <apr_rmm_free+73>: cmp    0x8(%ecx,%eax,1),%edx
> >
> > 0xb7ed339d <apr_rmm_free+77>: je     0xb7ed3429 <apr_rmm_free+217>
> >
> > 0xb7ed33a3 <apr_rmm_free+83>: mov    0xc(%edi),%eax
> >
> > 0xb7ed33a6 <apr_rmm_free+86>: test   %eax,%eax
> >
> > 0xb7ed33a8 <apr_rmm_free+88>: je     0xb7ed3480 <apr_rmm_free+304>
> >
> > 0xb7ed33ae <apr_rmm_free+94>: cmp    $0x2,%eax
> >
> > 0xb7ed33b1 <apr_rmm_free+97>: jne    0xb7ed348a <apr_rmm_free+314>
> >
> > 0xb7ed33b7 <apr_rmm_free+103>:      mov    0x10(%edi),%eax
> >
> > 0xb7ed33ba <apr_rmm_free+106>:      mov    %eax,(%esp)
> >
> > 0xb7ed33bd <apr_rmm_free+109>:      call   0xb7ec74fc 
> > <apr_thread_mutex_unlock@plt>
> >
> > 0xb7ed33c2 <apr_rmm_free+114>:      mov    $0x16,%eax
> >
> > 0xb7ed33c7 <apr_rmm_free+119>:      mov    0xfffffff4(%ebp),%ebx
> >
> > 0xb7ed33ca <apr_rmm_free+122>:      mov    0xfffffff8(%ebp),%esi
> >
> > 0xb7ed33cd <apr_rmm_free+125>:      mov    0xfffffffc(%ebp),%edi
> >
> > 0xb7ed33d0 <apr_rmm_free+128>:      mov    %ebp,%esp
> >
> > 0xb7ed33d2 <apr_rmm_free+130>:      pop    %ebp
> >
> > 0xb7ed33d3 <apr_rmm_free+131>:      ret 
> >
> >  
> >
> > Linux s100 2.6.16.54-0.2.5-smp #1 SMP Mon Jan 21 13:29:51 UTC 2008 
> > i686 i686 i386 GNU/Linux
> >
> > s100:/usr/lib/apache2 #
> >
> >  
> >
> > httpd2 -v
> >
> > Server version: Apache/2.2.3
> >
> > Server built:   Mar 26 2008 12:23:18
> >
> > s100:/usr/lib/apache2 #
> >
> >  
> >
> > I see this also using 5/7/08  CVN tree builds of apache, axis2c, apr, 
> > rampartc.
> >
> >  
> >
> > ------------------------------------------------------------------------
> >
> > No virus found in this incoming message.
> > Checked by AVG. 
> > Version: 7.5.524 / Virus Database: 269.23.10/1421 - Release Date: 5/7/2008 5:23
PM
> >   
> 
> 


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