From owner-freebsd-current@FreeBSD.ORG Fri Apr 13 18:34:59 2007 Return-Path: X-Original-To: freebsd-current@freebsd.org Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id BBBA916A400 for ; Fri, 13 Apr 2007 18:34:59 +0000 (UTC) (envelope-from sgk@troutmask.apl.washington.edu) Received: from troutmask.apl.washington.edu (troutmask.apl.washington.edu [128.208.78.105]) by mx1.freebsd.org (Postfix) with ESMTP id 955F013C457 for ; Fri, 13 Apr 2007 18:34:59 +0000 (UTC) (envelope-from sgk@troutmask.apl.washington.edu) Received: from troutmask.apl.washington.edu (localhost [127.0.0.1]) by troutmask.apl.washington.edu (8.13.8/8.13.8) with ESMTP id l3DIZPvW034743 for ; Fri, 13 Apr 2007 11:35:25 -0700 (PDT) (envelope-from sgk@troutmask.apl.washington.edu) Received: (from sgk@localhost) by troutmask.apl.washington.edu (8.13.8/8.13.8/Submit) id l3DIZPnN034742 for freebsd-current@freebsd.org; Fri, 13 Apr 2007 11:35:25 -0700 (PDT) (envelope-from sgk) Date: Fri, 13 Apr 2007 11:35:25 -0700 From: Steve Kargl To: freebsd-current@freebsd.org Message-ID: <20070413183525.GA34643@troutmask.apl.washington.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.2.2i Subject: gdb is broken X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 13 Apr 2007 18:34:59 -0000 It appears that someone has broken gdb in -current. laptop:kargl[250] cat > hello.c #include int main(void) { printf("Hello world!\n"); return 0; } laptop:kargl[251] cc -o z -g hello.c laptop:kargl[252] ./z Hello world! laptop:kargl[253] gdb z (gdb) run Starting program: /usr/home/kargl/tmp/z Terminated gdb appears to spwan the csh comamnd below and then just spins. last pid: 871; load averages: 1.10, 0.63, 0.33 up 0+00:12:51 11:20:59 41 processes: 2 running, 37 sleeping, 1 stopped, 1 zombie CPU states: 27.3% user, 0.0% nice, 71.9% system, 0.8% interrupt, 0.0% idle Mem: 27M Active, 44M Inact, 70M Wired, 2372K Cache, 60M Buf, 350M Free Swap: 1008M Total, 1008M Free PID USERNAME THR PRI NICE SIZE RES STATE TIME WCPU COMMAND 863 kargl 1 112 0 5784K 3980K RUN 0:50 67.77% gdb 864 kargl 1 103 0 3236K 1832K STOP 0:23 31.49% csh 871 kargl 1 44 0 3484K 1688K RUN 0:00 0.10% top A ktrace of gdb shows "Starting program: /usr/home/kargl/tmp/z " 904 gdb RET write 41/0x29 904 gdb CALL vfork 904 gdb RET vfork 905/0x389 904 gdb CALL wait4(0xffffffff,0xbfbfdee8,0,0) 904 gdb RET wait4 905/0x389 904 gdb CALL kill(0x389,SIG 0) 904 gdb RET kill 0 904 gdb CALL ptrace(PT_GETREGS,0x389,0xbfbfdca0,0) 904 gdb RET ptrace 0 904 gdb CALL ptrace(PT_GETDBREGS,0x389,0xbfbfddb0,0) 904 gdb RET ptrace 0 904 gdb CALL fcntl(0,F_GETFL,0) 904 gdb RET fcntl 2 904 gdb CALL ioctl(0,TIOCGETA,0x284af730) 904 gdb RET ioctl 0 904 gdb CALL ioctl(0,TIOCGPGRP,0xbfbfdf80) 904 gdb RET ioctl 0 904 gdb CALL ioctl(0,TIOCGETA,0x284af760) 904 gdb RET ioctl 0 904 gdb CALL fcntl(0,F_SETFL,O_RDONLY) 904 gdb RET fcntl 0 904 gdb CALL fcntl(0,F_SETFL,O_RDONLY) 904 gdb RET fcntl 0 904 gdb CALL ioctl(0,TIOCSETA,0x284af760) 904 gdb RET ioctl 0 904 gdb CALL ioctl(0,TIOCSPGRP,0xbfbfdfb0) 904 gdb RET ioctl 0 904 gdb CALL ptrace(PT_CONTINUE,0x389,0x1,0) 904 gdb RET ptrace 0 904 gdb CALL wait4(0xffffffff,0xbfbfdee8,0,0) 904 gdb RET wait4 905/0x389 904 gdb CALL kill(0x389,SIG 0) 904 gdb RET kill 0 904 gdb CALL ptrace(PT_GETREGS,0x389,0xbfbfdca0,0) 904 gdb RET ptrace 0 904 gdb CALL ptrace(PT_GETDBREGS,0x389,0xbfbfddb0,0) 904 gdb RET ptrace 0 904 gdb CALL ptrace(PT_CONTINUE,0x389,0x1,0x14) 904 gdb RET ptrace 0 904 gdb CALL wait4(0xffffffff,0xbfbfdee8,0,0) 904 gdb RET wait4 905/0x389 904 gdb CALL kill(0x389,SIG 0) 904 gdb RET kill 0 904 gdb CALL ptrace(PT_GETREGS,0x389,0xbfbfdca0,0) 904 gdb RET ptrace 0 904 gdb CALL ptrace(PT_GETDBREGS,0x389,0xbfbfddb0,0) 904 gdb RET ptrace 0 904 gdb CALL ptrace(PT_CONTINUE,0x389,0x1,0x14) 904 gdb RET ptrace 0 904 gdb CALL wait4(0xffffffff,0xbfbfdee8,0,0) 904 gdb RET wait4 905/0x389 904 gdb CALL kill(0x389,SIG 0) 904 gdb RET kill 0 The last ten lines are now endlessly repeated. -- Steve