Actually, this one was being debugged last night, with the discussion primarily being done off-list.
Please let me know if there are still problems. Regards, Elias On 4 May 2014 09:27, David B. Lamkins <dlamk...@gmail.com> wrote: > Ah, I didn't realize I was so far behind. Thanks for the heads-up! :) > > On Sun, 2014-05-04 at 08:20 +0800, Elias Mårtenson wrote: > > This was just fixed, actually. You might want to try with the latest > > version. It should work now. > > > > Regards, > > Elias > > > > On 4 May 2014 02:45, "David B. Lamkins" <dlamk...@gmail.com> wrote: > > I was able to get a core dump of the segfault caused by > > attempting to > > )load an APL file with Emacs mode active. > > > > [dlamkins@morganthe ~]$ gdb `which apl` -c core.2134 > > GNU gdb (GDB) Fedora 7.6.50.20130731-19.fc20 > > Copyright (C) 2013 Free Software Foundation, Inc. > > License GPLv3+: GNU GPL version 3 or later > > <http://gnu.org/licenses/gpl.html> > > This is free software: you are free to change and redistribute > > it. > > There is NO WARRANTY, to the extent permitted by law. Type > > "show > > copying" > > and "show warranty" for details. > > This GDB was configured as "x86_64-redhat-linux-gnu". > > Type "show configuration" for configuration details. > > For bug reporting instructions, please see: > > <http://www.gnu.org/software/gdb/bugs/>. > > Find the GDB manual and other documentation resources online > > at: > > <http://www.gnu.org/software/gdb/documentation/>. > > For help, type "help". > > Type "apropos word" to search for commands related to "word". > > .. > > Reading symbols from /usr/local/bin/apl...done. > > [New LWP 2134] > > [New LWP 2138] > > [New LWP 2137] > > [Thread debugging using libthread_db enabled] > > Using host libthread_db library "/lib64/libthread_db.so.1". > > Core was generated by `/usr/local/bin/apl --rawCIN --emacs'. > > Program terminated with signal SIGSEGV, Segmentation fault. > > #0 0x00007fd8c85b1098 in ?? () from /lib64/libgcc_s.so.1 > > Missing separate debuginfos, use: debuginfo-install > > blas-3.4.2-3.fc20.x86_64 glibc-2.18-12.fc20.x86_64 > > lapack-3.4.2-3.fc20.x86_64 libgcc-4.8.2-7.fc20.x86_64 > > libgfortran-4.8.2-7.fc20.x86_64 libgomp-4.8.2-7.fc20.x86_64 > > libquadmath-4.8.2-7.fc20.x86_64 libstdc++-4.8.2-7.fc20.x86_64 > > ncurses-libs-5.9-12.20130511.fc20.x86_64 > > readline-6.2-8.fc20.x86_64 > > (gdb) bt > > #0 0x00007fd8c85b1098 in ?? () from /lib64/libgcc_s.so.1 > > #1 0x00007fd8c85b1f99 in _Unwind_Backtrace () > > from /lib64/libgcc_s.so.1 > > #2 0x00007fd8c82e61e6 in backtrace () from /lib64/libc.so.6 > > #3 0x00000000004448a0 in Backtrace::show ( > > file=file@entry=0x533480 "main.cc", line=line@entry=122) > > at Backtrace.cc:276 > > #4 0x000000000047a72a in signal_SEGV_handler () at > > main.cc:122 > > #5 <signal handler called> > > #6 0x00007fd8c1547730 in ?? () > > #7 0x0000000000476307 in Input::get_user_line ( > > prompt=0x80f230 <Workspace::the_workspace+527600>) at > > Input.cc:223 > > #8 0x00000000004765f4 in Input::get_line () at Input.cc:150 > > #9 0x0000000000461f2d in Command::process_line () at > > Command.cc:61 > > #10 0x0000000000522e9d in Workspace::immediate_execution > > (exit_on_error=false) > > at Workspace.cc:129 > > #11 0x00000000004352d5 in main (argc=3, _argv=<optimized out>) > > at > > main.cc:466 > > (gdb) quit > > [dlamkins@morganthe ~]$ > > > > This is with svn 235. > > > > Input.cc:223 is the (*start_input)() call: > > > > const unsigned char * > > Input::get_user_line(const UCS_string * prompt) > > { > > if (start_input) (*start_input)(); > > ... > > > > which, I think (determined by code inspection; not gdb), > > points to > > active_disable in emacs.cc. That, in turn, ultimately invokes > > set_active(): > > > > void set_active( bool v ) > > { > > pthread_mutex_lock( &apl_main_lock ); > > if( !apl_active && !v ) { > > std::cerr << "Unlocking while the lock is unlocked" << > > std::endl; > > abort(); > > } > > if( v ) { > > while( apl_active ) { > > pthread_cond_wait( &apl_main_cond, &apl_main_lock > > ); > > } > > } > > apl_active = v; > > pthread_cond_broadcast( &apl_main_cond ); > > pthread_mutex_unlock( &apl_main_lock ); > > } > > > > > > > > >
