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From: "Ulrich dot Beingesser at t-systems dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/29517] New: Exception handling not thread-safe on AIX5.x with Gnu compilers Date: Thu, 19 Oct 2006 16:44:00 -0000 [thread overview] Message-ID: <bug-29517-10077@http.gcc.gnu.org/bugzilla/> (raw) The attached code crashes under AIX5.2 and AIX5.3 when compiled with g++ 4.1.1. The effect also occurs using g++ 4.0.3. It seems that throwing exceptions is not completely thread safe. The crash symptom is one of: 1. segmentation fault (core dumped) 2. illegal instruction (core dumped) 3. terminate called after throwing an instance of 'int' (core dumped). The effect cannot clearly be reproduced. However when running the test program (crashme.cpp) with rather big parameter values one can proove that the program crashes very often after some time if the params are choosen big enough. The program was build with following command: g++ crashme.cpp -o crashme -lpthread Usage: crashme <number of threads> <number of runs> For example 'crashme 50 1000' was enough to crash it on our box almost every time. -- Summary: Exception handling not thread-safe on AIX5.x with Gnu compilers Product: gcc Version: 4.1.1 Status: UNCONFIRMED Severity: blocker Priority: P3 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: Ulrich dot Beingesser at t-systems dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29517
next reply other threads:[~2006-10-19 16:44 UTC|newest] Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top 2006-10-19 16:44 Ulrich dot Beingesser at t-systems dot com [this message] 2006-10-19 16:45 ` [Bug c++/29517] " Ulrich dot Beingesser at t-systems dot com 2006-10-19 16:51 ` pinskia at gcc dot gnu dot org 2006-10-19 17:02 ` Ulrich dot Beingesser at t-systems dot com 2006-10-19 17:28 ` pinskia at gcc dot gnu dot org 2006-10-20 7:53 ` Ulrich dot Beingesser at t-systems dot com 2006-10-20 8:08 ` Ulrich dot Beingesser at t-systems dot com 2006-10-20 8:10 ` Ulrich dot Beingesser at t-systems dot com 2006-10-26 18:39 ` Ulrich dot Beingesser at t-systems dot com 2007-01-20 10:37 ` [Bug target/29517] Exception handling not thread-safe on AIX5.x and HP-UX rguenth at gcc dot gnu dot org 2007-07-20 21:22 ` chris at cdnorthamerica dot com 2007-07-24 15:52 ` chris at cdnorthamerica dot com 2007-07-24 16:26 ` dave at hiauly1 dot hia dot nrc dot ca
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