Hello, While using crash I found that it would suck all my CPU when external commands are invoked (eg. bt piped to $PAGER). The patch below works for me. Cheers, -- saffroy(a)gmail.com Index: crash-4.0-3.4/cmdline.c =================================================================== --- crash-4.0-3.4.orig/cmdline.c 2006-09-25 00:28:11.000000000 +0200 +++ crash-4.0-3.4/cmdline.c 2006-09-25 00:30:30.000000000 +0200 @@ -846,10 +846,8 @@ if (pc->stdpipe) { close(fileno(pc->stdpipe)); pc->stdpipe = NULL; - if (pc->stdpipe_pid && PID_ALIVE(pc->stdpipe_pid)) { - while (!waitpid(pc->stdpipe_pid, &waitstatus, WNOHANG)) - ; - } + if (pc->stdpipe_pid && PID_ALIVE(pc->stdpipe_pid)) + waitpid(pc->stdpipe_pid, &waitstatus, 0); pc->stdpipe_pid = 0; } if (pc->pipe) {