Subject: Re: 1.3 problems/crashes (was: RE: Building X)
To: Gunnar Helliesen <gunnar@bitcon.no>
From: Arno Griffioen <arno@usn.nl>
List: port-vax
Date: 01/04/1998 13:16:06
> (On my VAXstation 2000, 6MB, RD54, running the 1.3_ALPHA snapshot):
> 
> or run ps(1) with -aux:

On my 3600 that's no problem:

nerdvax# uname -a
NetBSD nerdvax.attic.nerdnet.nl 1.3_ALPHA NetBSD 1.3_ALPHA (NERDVAX) #2: Sun Nov  2 18:13:57 CET 1997     root@nerdvax.attic.nerdnet.nl:/devel/usr/src/sys/arch/vax/compile/NERDVAX vax

> hybelvax:~# sync
> hybelvax:~# ps -aux
> USER       PID %CPU %MEM   VSZ  RSS TT  STAT STARTED       TIME COMMAND
> root       170  4.2  0.1  1167    0 ??  Ss   Thu07AM    0:25.74 (bash)
> root         1  0.0  0.0   355    0 ??  IWs   1Jan70    0:02.94
> /sbin/init -s 
> root         2  0.0  0.1     0    0 ??  DL    1Jan70    0:03.66
> (pagedaemon)
> root        87  0.0 panic: pmap_enter: lost mapping
> Stopped at       0x800a1267:6AM         bicl3   $0xffbfffff, r2, r1
> db> c
> syncing disks... done
> 
> dumping to dev 1301, offset 21407
> dump succeeded
> 
> ?06 HLT INST
>     PC = 800A5370
> >>> 


nerdvax# sync
nerdvax# ps -aux
USER       PID %CPU %MEM   VSZ  RSS TT  STAT STARTED       TIME COMMAND
root      1970  0.0  0.0   391    0 p0  R+    1:12PM    0:00.14 (ps)
root         1  0.0  0.0   355    0 ??  Is    1:17PM    0:00.46 /sbin/init 
root         2  0.0  0.0     0    0 ??  DL    1:17PM    0:00.02 (pagedaemon)
root        85  0.0  0.0   322    0 ??  Ss    1:21PM    0:24.24 syslogd 
root       125  0.0  0.0    59    0 ??  Is    1:22PM    4:44.79 update 30 
root       127  0.0  0.0   461    0 ??  Ss    1:22PM    0:04.22 cron 
root       140  0.0  0.0   775    0 ??  S<s   1:22PM    0:15.86 xntpd -p /var/r
root       146  0.0  0.0   449    0 ??  Is    1:22PM    0:00.27 lpd 
root       151  0.0  0.0  1131    0 ??  Ss    1:22PM    0:01.28 sendmail: accep
root       160  0.0  0.0   437    0 ??  Is    1:22PM    0:00.37 inetd 
root       162  0.0  0.0   793    0 ??  Is    1:22PM    2:43.54 /usr/local/sbin
root       164  0.3  0.0  1000    0 ??  Ss    1:22PM   14:10.99 /usr/local/etc/
www        168  0.0  0.0  1000    0 ??  I     1:22PM    0:00.22 /usr/local/etc/
www        169  0.0  0.0  1000    0 ??  I     1:22PM    0:00.22 /usr/local/etc/
www        170  0.0  0.0  1000    0 ??  I     1:22PM    0:00.12 /usr/local/etc/
www        171  0.0  0.0  1000    0 ??  I     1:22PM    0:00.11 /usr/local/etc/
www        172  0.0  0.0  1000    0 ??  I     1:22PM    0:00.17 /usr/local/etc/
root       273  0.0  0.0   295    0 ??  Is+   2:33PM    0:00.18 /usr/libexec/ge
root      1939  0.8  0.0  1469    0 ??  R     1:02PM    0:12.16 /usr/local/sbin
arno      1941  0.0  0.0  1289    0 p0  Is    1:02PM    0:03.36 -bash (bash)
root      1964  0.2  0.0   529    0 p0  S     1:11PM    0:01.34 -csh (csh)
root         0  0.0  0.0     0    0 ??  DLs   1:17PM    0:00.03 (swapper)
nerdvax#                                                                       

> OMPAT_42 -DLKM -DMAXUSERS=8 -D_KERNEL  -D_VAX_INLINE_  -c param.c
> cc: Internal compiler error: program cc1 got fatal signal 4
> *** Error code 1

Don't see that either..

> configured and it is active. I had no problems on this same hardware
> running 1.2G.

Hmm..

Perhaps the paging to/from swap is the culprit?

With 32 Mb my 3600 almost never uses swap at all:

nerdvax# swapctl -l                                                            
Device      1K-blocks     Used    Avail Capacity  Priority
/dev/ra0b       64000        1    63999     0%    0

Having heard that the VM system changed in 1.3 I start to wonder
if things may go *boom* when you _do_ use swap a lot..

							Bye Arno.

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