Hi all, When I use lvm commands, there is always "Segmentation fault" appears. I tried to use GDB to trace the pvcreate command, found when it run at locking.c:: _block_signals(int flags); the error: "Program received signal SIGSEGV, Segmentation fault" happened. I have modified below files before 'make install' to remove compile errors: usr/include/signal.h:151:typedef __sighandler_t sig_t; /*add this line*/ usr/include/sys/select.h:38://typedef __sigset_t sigset_t; /*remove this line*/ My platform is Redhat 9.0, and the kernel is 2.4.21 with device-mapper1.0. Do these modifications cause the segmentation fault? How can I solve it? Thank you very much! -Lu, Jian _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/