Date: Thu, 22 Oct 1998 01:47:33 -0700 From: David Greenman <dg@root.com> To: john gladkih <john@simcb.ru> Cc: freebsd-bugs@FreeBSD.ORG Subject: Re: system hangs Message-ID: <199810220847.BAA02056@implode.root.com> In-Reply-To: Your message of "Thu, 22 Oct 1998 12:03:45 %2B0400." <199810220803.MAA14421@gate.simcb.ru>
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>I use SMP kernel with dual-CPU system (HP Vectra XU 6/200), 64M RAM. > >toor@gate[~]2:#> id >uid=0(toor) gid=0(wheel) groups=0(wheel), 2(kmem), 3(sys), 4(tty), 5(operator), 20(staff) 31(guest) >toor@gate[~]3:#> uname -a >FreeBSD gate.simcb.ru 3.0-19980804-SNAP FreeBSD 3.0-19980804-SNAP #0: Sat Sep 19 08:23:32 >GMT 1998 john@gate.simcb.ru:/usr/src/sys/compile/PROXY-2CPU i386 >toor@gate[~]4:#> dd if=/dev/mem of=/dev/null ^^^^^^^^ > >After 20 minutes later system was die. :-( Don't do that. It's not safe to read from /dev/mem like that since it will touch device shared memory and other things. -DG David Greenman Co-founder/Principal Architect, The FreeBSD Project To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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