gdb调试不出问题,能否提示下

不飘不浮

This GDB was configured as "i386-marcel-freebsd"...
Core was generated by `saac'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /lib/libthr.so.3...done.
Loaded symbols for /lib/libthr.so.3
Reading symbols from /usr/local/lib/mysql/libmysqlclient.so.16...done.
Loaded symbols for /usr/local/lib/mysql/libmysqlclient.so.16
Reading symbols from /lib/libz.so.5...done.
Loaded symbols for /lib/libz.so.5
Reading symbols from /lib/libm.so.5...done.
Loaded symbols for /lib/libm.so.5
Reading symbols from /lib/libc.so.7...done.
Loaded symbols for /lib/libc.so.7
Reading symbols from /usr/lib/librt.so.1...done.
Loaded symbols for /usr/lib/librt.so.1
Reading symbols from /lib/libcrypt.so.5...done.
Loaded symbols for /lib/libcrypt.so.5
Reading symbols from /libexec/ld-elf.so.1...done.
Loaded symbols for /libexec/ld-elf.so.1
#0  main (argc=2, argv=0xbfbfec3c) at main.c:687
687         signal(SIGUSR1, sigusr1);
[New Thread 28301140 (LWP 100121)]


signal之后就Segmentation fault了.

prolj

没有进main？

peidright

printf
bt
assert
watch
break

不飘不浮

main已经进了，但是在signal的时候就fault了，如果注释掉signal这行
后面函数也同样fault,目前没有头绪是往哪部分查.