panic in swap_pager_swap_init (amd64/smp/6.2-pre)

[Kris Kennaway]

On Mon, Nov 13, 2006 at 11:36:01PM -0500, Alex Vasylenko wrote:
> I tried to upgrade an amd64x2 box from "FreeBSD 6.1-STABLE #36: Mon Sep
> 4 11:22:15 EDT 2006" to "FreeBSD 6.2-PRERELEASE #1: Mon Nov 13 10:01:57
> EST 2006" and found that a newly built kernel panics on boot and locks
> up solid after printing:
> SMP: AP CPU #1 Launched!
> panic: failed to create swap_zone.
> 
> A few reboots later I also discovered that:
> - GENERIC (UP) kernel works fine;
> - SMP kernel fails in the same way;
> - my kernel (a stripped down SMP) with "options SMP" removed works;
> - my kernel with SMP enabled and either -v or -d (followed by cont)
>   works.
> ("works" in the last case is defined as: I could upgrade gnome
> 2.14->2.16 with buildworld -j2 going at the same time)

That's quite odd, since afaik boot -v doesn't change any behaviour
apart from some printfs.  Is this still repeatable, i.e. it didn't in
fact go away after you rebuilt your kernel from scratch during the
course of the above testing?

Kris
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