Subject: port-vax/11121: machine hang under load
To: None <>
From: Manuel Bouyer <>
List: netbsd-bugs
Date: 10/03/2000 03:01:24
>Number:         11121
>Category:       port-vax
>Synopsis:       machine hang under load
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-vax-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Oct 03 03:07:00 PDT 2000
>Originator:     Manuel Bouyer
>Release:        1.5 branch as of a few days ago

Good old machines's home :)

System: NetBSD 1.5_ALPHA2 NetBSD 1.5_ALPHA2 (CORDOUAN) #1: Tue Oct 3 06:53:46 MEST 2000 vax

Machine is a uVAX II/3300 with 24M RAM, diskless

	under load (from other posts to the port-vax mailing list this seems
	related to swapping) the machine hangs hard. I can reproduce this
	reliably with a 'make build'. this machine had been reliable with

	reverting pmap.c to makes the machine panic with
	panic: pmap_enter onto myself
	while running 'make build'
	reverting pmap.c to  1.82 and pmap.h to 1.39 makes the machine stable

	'make build', with NBUILDJOBS big enouth to make the machine swap.
	workaround: revert pmap.c/pmap.h to the 1.5_ALPHA version.