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From "Sebastian Brandt (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AXIS2C-1592) duplicate free: axis2_repos_listener and axis2_dep_engine when module load failed
Date Mon, 30 Apr 2012 12:36:49 GMT

     [ https://issues.apache.org/jira/browse/AXIS2C-1592?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sebastian Brandt updated AXIS2C-1592:
-------------------------------------

    Summary: duplicate free: axis2_repos_listener and axis2_dep_engine when module load failed
 (was: duplicate free: axis2_repos_listener and axis2_dep_engine_free when module load failed)
    
> duplicate free: axis2_repos_listener and axis2_dep_engine 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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