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From "Sebastian Brandt (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AXIS2C-1592) duplicate free: axis2_repos_listener and axis2_dep_engine_free when module load failed
Date Mon, 30 Apr 2012 12:36:48 GMT
Sebastian Brandt created AXIS2C-1592:
----------------------------------------

             Summary: duplicate free: axis2_repos_listener and axis2_dep_engine_free when
module load failed
                 Key: AXIS2C-1592
                 URL: https://issues.apache.org/jira/browse/AXIS2C-1592
             Project: Axis2-C
          Issue Type: Bug
          Components: core/deployment, core/engine
    Affects Versions: 1.7.0
            Reporter: Sebastian Brandt


When the loading of a module failes (a dll not found, axis2.xml not correct, etc) the engine
and configuration are directly freed.
This results in duplicate free.
Ususally, this is not really a problem, as all ptrs in the structs that are freed twice are
NULL, resulting in no additional problems.
Still, with MSVC and _CRTDBG_MAP_ALLOC, this leads to crashes.

Stack trace summary:
1) failed dep_engine_load_client calls repos_listener_free
2) failed dep_engine_load_client calls conf_free which calls dep_engine_free
3)  which calls repos_listener_free (again)
4) failed axis2_build_client_conf_ctx calls dep_engine_free (again).

Problem seems to be that the ownership is not agreed on between conf->dep_engine and dep_engine->conf.


complete stack traces:
>	axis2_engine.dll!axis2_repos_listener_free(axis2_repos_listener * repos_listener=0x03141920,
const axutil_env * env=0x0312f3e0)  Line 149	C
 	axis2_engine.dll!axis2_dep_engine_load_client(axis2_dep_engine * dep_engine=0x03130510,
const axutil_env * env=0x0312f3e0, const char * client_home=0x0312e144)  Line 964	C
 	axis2_engine.dll!axis2_build_client_conf_ctx(const axutil_env * env=0x0312f3e0, const char
* axis2_home=0x0312e144)  Line 222 + 0x8 bytes	C
 	axis2_engine.dll!axis2_svc_client_create_with_conf_ctx_and_svc(const axutil_env * env=0x0312f3e0,
const char * client_home=0x0312e144, axis2_conf_ctx * conf_ctx=0x00000000, axis2_svc * svc=0x00000000)
 Line 174 + 0x1b bytes	C
 	axis2_engine.dll!axis2_svc_client_create(const axutil_env * env=0x0312f3e0, const char *
client_home=0x0312e144)  Line 126	C
 	axis2_engine.dll!axis2_stub_create_with_endpoint_ref_and_client_home(const axutil_env *
env=0x0312f3e0, axis2_endpoint_ref * endpoint_ref=0x0312f418, const char * client_home=0x0312e144)
 Line 66 + 0xb bytes	C


>	axis2_engine.dll!axis2_dep_engine_free(axis2_dep_engine * dep_engine=0x03130510, const
axutil_env * env=0x0312f3e0)  Line 386	C
 	axis2_engine.dll!axis2_conf_free(axis2_conf * conf=0x00000000, const axutil_env * env=0x0312f3e0)
 Line 357	C
 	axis2_engine.dll!axis2_dep_engine_load_client(axis2_dep_engine * dep_engine=0x03130510,
const axutil_env * env=0x0312f3e0, const char * client_home=0x0312e144)  Line 965	C
 	axis2_engine.dll!axis2_build_client_conf_ctx(const axutil_env * env=0x0312f3e0, const char
* axis2_home=0x0312e144)  Line 222 + 0x8 bytes	C
 	axis2_engine.dll!axis2_svc_client_create_with_conf_ctx_and_svc(const axutil_env * env=0x0312f3e0,
const char * client_home=0x0312e144, axis2_conf_ctx * conf_ctx=0x00000000, axis2_svc * svc=0x00000000)
 Line 174 + 0x1b bytes	C
 	axis2_engine.dll!axis2_svc_client_create(const axutil_env * env=0x0312f3e0, const char *
client_home=0x0312e144)  Line 126	C
 	axis2_engine.dll!axis2_stub_create_with_endpoint_ref_and_client_home(const axutil_env *
env=0x0312f3e0, axis2_endpoint_ref * endpoint_ref=0x0312f418, const char * client_home=0x0312e144)
 Line 66 + 0xb bytes	C

>	axis2_engine.dll!axis2_repos_listener_free(axis2_repos_listener * repos_listener=0x03141920,
const axutil_env * env=0x0312f3e0)  Line 149	C
 	axis2_engine.dll!axis2_dep_engine_free(axis2_dep_engine * dep_engine=0x03130510, const axutil_env
* env=0x0312f3e0)  Line 570	C
 	axis2_engine.dll!axis2_conf_free(axis2_conf * conf=0x00000000, const axutil_env * env=0x0312f3e0)
 Line 357	C
 	axis2_engine.dll!axis2_dep_engine_load_client(axis2_dep_engine * dep_engine=0x03130510,
const axutil_env * env=0x0312f3e0, const char * client_home=0x0312e144)  Line 965	C
 	axis2_engine.dll!axis2_build_client_conf_ctx(const axutil_env * env=0x0312f3e0, const char
* axis2_home=0x0312e144)  Line 222 + 0x8 bytes	C
 	axis2_engine.dll!axis2_svc_client_create_with_conf_ctx_and_svc(const axutil_env * env=0x0312f3e0,
const char * client_home=0x0312e144, axis2_conf_ctx * conf_ctx=0x00000000, axis2_svc * svc=0x00000000)
 Line 174 + 0x1b bytes	C
 	axis2_engine.dll!axis2_svc_client_create(const axutil_env * env=0x0312f3e0, const char *
client_home=0x0312e144)  Line 126	C
 	axis2_engine.dll!axis2_stub_create_with_endpoint_ref_and_client_home(const axutil_env *
env=0x0312f3e0, axis2_endpoint_ref * endpoint_ref=0x0312f418, const char * client_home=0x0312e144)
 Line 66 + 0xb bytes	C

>	axis2_engine.dll!axis2_dep_engine_free(axis2_dep_engine * dep_engine=0x03130510, const
axutil_env * env=0x0312f3e0)  Line 386	C
 	axis2_engine.dll!axis2_build_client_conf_ctx(const axutil_env * env=0x0312f3e0, const char
* axis2_home=0x0312e144)  Line 228 + 0x7 bytes	C
 	axis2_engine.dll!axis2_svc_client_create_with_conf_ctx_and_svc(const axutil_env * env=0x0312f3e0,
const char * client_home=0x0312e144, axis2_conf_ctx * conf_ctx=0x00000000, axis2_svc * svc=0x00000000)
 Line 174 + 0x1b bytes	C
 	axis2_engine.dll!axis2_svc_client_create(const axutil_env * env=0x0312f3e0, const char *
client_home=0x0312e144)  Line 126	C
 	axis2_engine.dll!axis2_stub_create_with_endpoint_ref_and_client_home(const axutil_env *
env=0x0312f3e0, axis2_endpoint_ref * endpoint_ref=0x0312f418, const char * client_home=0x0312e144)
 Line 66 + 0xb bytes	C


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