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From "Travis Vitek (JIRA)" <j...@apache.org>
Subject [jira] Updated: (STDCXX-845) [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
Date Sat, 03 May 2008 00:36:55 GMT

     [ https://issues.apache.org/jira/browse/STDCXX-845?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Travis Vitek updated STDCXX-845:
--------------------------------

    Attachment: stdcxx-845.patch

Here is my proposed patch. Please review and provide feedback.

{noformat}
2008-05-02  Travis Vitek  <vitek@roguewave.com>

	STDCXX-845
	* src/messages.cpp (__rw_manage_cat_data): Employ a simple paging
	scheme and one level of indirection to avoid moving catalog data
	around when adding or removing message catalogs from the cache.
	Ensure that we do cleanup when closing last catalog regardless of
	the order that catalogs are closed.
{noformat}

> [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
> -------------------------------------------
>
>                 Key: STDCXX-845
>                 URL: https://issues.apache.org/jira/browse/STDCXX-845
>             Project: C++ Standard Library
>          Issue Type: Bug
>          Components: 22. Localization
>    Affects Versions: 4.2.1
>         Environment: AIX 5.3 PowerPC IBM XLC++ 9.0 
> AIX 5.3 PowerPC IBM XLC++ 8.0 
> AIX 5.3 PowerPC IBM XLC++ 7.0 
>            Reporter: Travis Vitek
>            Assignee: Travis Vitek
>             Fix For: 4.2.2
>
>         Attachments: stdcxx-845.patch
>
>   Original Estimate: 4h
>          Time Spent: 6h
>  Remaining Estimate: 2h
>
> On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}}
or {{SIGABRT}}.
> {{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
> {{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
> {{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
> {{SIGABRT}} on XLC++ 8.0 for 15S
> {{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
> {{SIGABRT}} on XLC++ 9.0 for 15s
> Here is the output for a 12S build...
> {noformat}
> $ dbx 22.locale.messages.mt 
> # INFO (S1) (10 lines):
> # TEXT: 
> # COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
> # ENVIRONMENT: powerpc/LP64 running aix-5.3
> # FILE: 22.locale.messages.mt.cpp
> # COMPILED: Apr  9 2008, 16:38:10
> # COMMENT: thread safety
> ############################################################
> # CLAUSE: lib.locale.messages
> # NOTE (S2) (5 lines):
> # TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
> # CLAUSE: lib.locale.messages
> # FILE: process.cpp
> # LINE: 279
> # INFO (S1) (3 lines):
> # TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
> # CLAUSE: lib.locale.messages
> # INFO (S1) (3 lines):
> # TEXT: exercising std::messages<char>
> # CLAUSE: lib.locale.messages
> Segmentation fault (core dumped)
> $ dbx 22.locale.messages.mt 
> Type 'help' for help.
> [using memory image in core]
> reading symbolic information ...
> Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
> 0x900000000048ec0 (strchr+0x140) 8d230001       lbzu   r9,0x1(r3)
> (dbx) where
> strchr.strchr() at 0x900000000048ec0
> _C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const
char*)) const() at 0x100027970
> __rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13()
at 0x100070e54
> do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__()
at 0x1000373ec
> get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__()
at 0x100037178
> 22.locale.messages.mt.void test_get<char>( \
>   const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char>
>&) \
>   (msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
> unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> (dbx) quit
> {noformat}
> This is a new test for 4.2.1, so it is a regression.

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