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From "Michael Ryan" <michaelr...@mindspring.com>
Subject segfault in apr_rmm_free after installing 1.4.0
Date Thu, 08 May 2008 13:13:43 GMT
 

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.

 


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