Hi Kevin, Worth, Kevin wrote: > I've attached the log files from running strace. > Hopefully they contain some clue as to where this failure is occurring. > I tried specifying -d30 and it still failed. Both traces attached. Thank you for some log files. vmcore-d30.log: open("/proc/vmcore", O_RDONLY) = 4 [snip] lseek(4, 2885288664, SEEK_SET) = -1 EINVAL (Invalid argument) Your system has 4GB memory, and /proc/vmcore size is almost 4GB, right ? If yes, the above lseek() should *not* fail because the offset (almost 2.7GB) is in /proc/vmcore. So I guess that this problem is due to a kernel. Please try copying /proc/vmcore by `cp` command, and check whether the size of copied file is the same as /proc/vmcore. Thanks Ken'ichi Ohmichi