Date: Tue, 18 Jul 2000 11:28:10 PDT From: "Caleb Land" <redhatdude@hotmail.com> To: freebsd-questions@freebsd.org Subject: Thread runtime errors with 4.1 Message-ID: <20000718182810.6047.qmail@hotmail.com>
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Hello, I am having trouble running some programs that use threads. I am using a recently built and installed system: ---------------- # uname -a FreeBSD helga.granfalloon.com 4.1-RC FreeBSD 4.1-RC #11: Mon Jul 17 19:03:18 EDT 2000 root@helga.granfalloon.com:/usr/src/sys/compile/HELGA i386 ---------------- For example, the XMMS port used to work, but when I upgraded it, I get a core dump at runtime that when I open in gdb prints this: ---------------- # gdb xmms GNU gdb 4.18 Copyright 1998 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-unknown-freebsd"...(no debugging symbols found)... (gdb) core-file xmms.core Core was generated by `xmms'. Program terminated with signal 11, Segmentation fault. Reading symbols from /usr/X11R6/lib/libgtk12.so.2...(no debugging symbols found)...done. Reading symbols from /usr/X11R6/lib/libgdk12.so.2...(no debugging symbols found)...done. Reading symbols from /usr/local/lib/libgmodule12.so.3...(no debugging symbols found)...done. Reading symbols from /usr/local/lib/libgthread12.so.3...(no debugging symbols found)...done. Reading symbols from /usr/local/lib/libglib12.so.3...(no debugging symbols found)...done. Reading symbols from /usr/local/lib/libintl.so.1...(no debugging symbols found)...done. Reading symbols from /usr/lib/libxpg4.so.3...(no debugging symbols found)...done. Reading symbols from /usr/X11R6/lib/libXext.so.6...(no debugging symbols found)...done. Reading symbols from /usr/X11R6/lib/libX11.so.6...(no debugging symbols found)...done. Reading symbols from /usr/lib/libm.so.2...(no debugging symbols found)...done. Reading symbols from /usr/local/lib/libpthread.so.13...(no debugging symbols found)...done. Reading symbols from /usr/X11R6/lib/libSM.so.6...(no debugging symbols found)...done. Reading symbols from /usr/X11R6/lib/libICE.so.6...(no debugging symbols found)...done. Reading symbols from /usr/X11R6/lib/libxmms.so.1...(no debugging symbols found)...done. Reading symbols from /usr/lib/libc_r.so.4...(no debugging symbols found)...done. Reading symbols from /usr/lib/libxpg4.so.2...(no debugging symbols found)...done. Reading symbols from /usr/lib/libc.so.4...(no debugging symbols found)...done. Reading symbols from /usr/libexec/ld-elf.so.1...(no debugging symbols found)...done. #0 0x283ef7b8 in pth_cancel_point () from /usr/local/lib/libpthread.so.13 ---------------- I recently compiled PAN (the news reader). I had to do a search on the Makefile and replace -lc_r with -lpthread to get it to compile correctly (this IS right, isn't it, from what I read in the manual pages this is correct, but I could be wrong), but when I run it I get similar results with the core file it dumps. I am somewhat confused as to what everything does with regard to the threads, IE ports/devel/pth, ports/devel/pth-devel, ports/devel/linuxthreads, /usr/src/lib/libc_r. If someone could explain this (even if not answering my problem) I would be very grateful. I thought that the last one (libc_r) was a thread safe C library, if so, then why doesn't -lc_r work, but -lpthread does (compile time anyways) Sincerely, Caleb, confused about threads, Land (bokonon@rochester.rr.com) - If you CC a reply to my address please use this one, I'm on my hotmail account now, but it isn't my real address. ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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