Subject: Re: Yay! VAX working VERY well
To: Tom Ivar Helbekkmo <tih@hamartun.priv.no>
From: Johnny Billquist <bqt@softjar.se>
List: port-vax
Date: 06/04/2007 16:16:00
Okay. I see the same problem.
Something has broken down again. Argh!
Don't know exactly when this happened, but a kernel I build at the end
of april or so did work fine I believe.

	Johnny

s=C3=B6n 2007-06-03 klockan 20.13 skrev Tom Ivar Helbekkmo:
> I wrote:
>=20
> > Ran into some other trouble along the way, and ended up building from a
> > May 26th -current instead.  With that installed, the system keeps
> > crashing on me -- segfault in kernel mode, with the pagedaemon as the
> > current process.  Didn't do that with the cross-compiled system, so it'=
s
> > either something that changed between April 16th and May 26th, or it's
> > an artifact of the system now running having been built on the VAX, as
> > opposed to being cross-compiled.
>=20
> It's to do with swap, it seems.  A simple way I can reproduce it is by
> running bunzip2 on a large, bzip2-ed file.  I'll then watch, using
> top(1), as free memory decreases while file buffering increases.  Once
> free gets town between 500 and 300KB somewhere, the system crashes.  A
> backtrace in the debugger included something like uvm_swapout (I didn't
> write it down), so I figured it might be related to swap.  Did another
> trial run without any swap space on line, and, sure enough, it doesn't
> crash.
>=20
> -tih
> --=20
> Computers are useless.  They can only give you answers.  --Pablo Picasso