On Thu, 27 Oct 2011, Ludo Brands wrote:
What happens if you comipile with -gl and run the program under GDB ? can you post a backtrace ? Note that you may need to add a {$linklib pthread} to the program source, otherwise gdb may complain about missing threads support. The backtrace will show us exactly where the error occurs (or it should). Michael.Was able to reproduce with fb 2.5 on ubuntu 11.10 64 bit. The crash happens in the thread clean up code. Backtrace shows: #0 0x00007ffff66b5b00 in ?? () #1 0x00007ffff7bc6ce3 in __nptl_deallocate_tsd () from /lib/x86_64-linux-gnu/libpthread.so.0 #2 0x00007ffff7bc6f0a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #3 0x00007ffff76fd89d in clone () from /lib/x86_64-linux-gnu/libc.so.6 #4 0x0000000000000000 in ?? () Traced into __pthread_exit and the sigsegv happens in __pthread_unwind calling _Unwind_ForcedUnwind. This is an indication of c++ exception being not dealt with correctly and the exception (re?)raised by _Unwind_ForcedUnwind isn't caught.
If it is a C++ exception, then it is a firebird client bug. The exceptions are not supposed to leave the fbclient library... Michael. _______________________________________________ fpc-devel maillist - [email protected] http://lists.freepascal.org/mailman/listinfo/fpc-devel
