Subject: stability problems involving suspend/resume and pcmcia card?
To: None <email@example.com>
From: Steve Bellovin <firstname.lastname@example.org>
Date: 07/16/2002 09:28:27
I'm running 1.6 beta 4, and I've had several crashes in the last two
days involving some combination of pcmcia insertion and removal,
coupled with suspend/resume. I haven't quite characterized exactly
what causes it -- as will be seen below, my forgetfulness may be one of
the triggers -- but it's quite clear that something is happening.
The card in question is a Lucent 802.11 card. In some cases, what has
happened is that I suspended the machine with the card in, removed it
to put the machine into my backpack, and resumed *without* reinserting.
I get some annoying messages, and trying reinserting the card, which
used to work -- and the machine crashes. I think.
This morning, I stopped dhclient (but not ntpd), ifconfig'ed the card
down, and removed it. When I typed 'zzz', the machine hung.
Has anyone else seen things like this? My machine is a Thinkpad T21;
my /etc/apm/suspend tries to ifconfig down all interfaces it knows of.
--Steve Bellovin, http://www.research.att.com/~smb (me)
http://www.wilyhacker.com ("Firewalls" book)