Subject: Re: Crashing after adding more RAM on i386 (total of 128M)
To: None <firstname.lastname@example.org>
From: Todd Vierling <email@example.com>
Date: 01/01/1998 21:38:18
On 2 Jan 1998 firstname.lastname@example.org wrote:
: I can reliably crash my machine after adding more memory, for a total
: of 128M in SDRAM DIMMS. It happens when a program is using nearly all
: the ram, and a good deal of the swap.
What's the panic message?
: (1) Is this likely bad memory, or
: (2) Is NetBSD unable to handle running out of swap?
Possibly, and yes. Though I've been told that this has happened before and
is a problem with running out of static data areas in core (as per my
previous question about the panic message).
: On the first crash, I had less swap than ram (96M swap, 128M ram) but
: on the second crash I had another 128M in a vnd file added to the swap.
In 1.3 (and -current), you don't need to vnd a file to make it swap.
swapctl(8,2) work with files directly now.
: The error (which flashed by my screen fast, and I have no crash dump)
: mentioned "changebit" or something with "change" and "bit" in it. ;)
Make your kernel with 'makeoptions DEBUG="-g"', keep the "netbsd.gdb" file
around, and make sure "savecore=ON" in rc.conf. Having a core file around
would help immensely, and you'd be able to use gdb to look at the possible
===== Todd Vierling (Personal email@example.com; Business firstname.lastname@example.org) =====
== "There's a myth that there is a scarcity of justice to go around, so
== that if we extend justice to 'those people,' it will somehow erode the
== quality of justice everyone else receives." -- Maria Price