Subject: Re: i386 1.4Q hangs nonrandomly?
To: maximum entropy <firstname.lastname@example.org>
From: Jason Thorpe <email@example.com>
Date: 01/27/2000 08:58:24
On Thu, 27 Jan 2000 04:44:32 -0500 (EST)
maximum entropy <firstname.lastname@example.org> wrote:
> When it hung I was running: "make -j 12 build" in /usr/src; "make
> build" in /usr/xsrc; screen; top; irc; emacs; StarOffice attempting to
> load a 4 megabyte RTF file; a full filesystem dump under Amanda;
> Netscape with about 20 browser windows open; xconsole; an assortment
> of xterms.
> The system happily chugged away for about 3 hours like this, then
> locked up solid.
> I'm totally out of ideas now...
do you have DDB enabled in your kernel? If so, dropping into DDB
while running X is going to give the appearance of a "hang".
I'm thinking what happened there is that you ran out of kernel virtual
address space, and went boom.
softdeps is known to be pretty evil with memory management (Frank and
I have some ideas on how to fix it, but there's a decent bit of work
involved). These other applications that you ran could certainly put
a strain on your KVA space, as well...
-- Jason R. Thorpe <email@example.com>