port-pmax: segmap alloc failed

Subject: segmap alloc failed
To: None <port-pmax@NetBSD.ORG>
From: Greg Wohletz <greg@duke.CS.UNLV.EDU>
List: port-pmax
Date: 07/14/1997 12:43:18

I have a Decstation 5000/200 running 1.2G (Jun 23) acting as a news server.
Every few days the system panics:

Jun 26 02:36:30 lazy /netbsd: panic: pmap_enter: segmap alloc failed
Jun 28 02:35:51 lazy /netbsd: panic: pmap_enter: segmap alloc failed
Jun 29 23:33:45 lazy /netbsd: panic: pmap_enter: segmap alloc failed
Jul  4 02:10:18 lazy /netbsd: panic: vm_fork: no more kernel virtual memory
Jul  8 17:15:46 lazy /netbsd: panic: pmap_enter: segmap alloc failed
Jul  9 02:49:36 lazy /netbsd: panic: pmap_enter: segmap alloc failed


Looking at sys/arch/mips/mips/pmap.c I find:

        if (!(pte = pmap_segmap(pmap, va))) {
                mem = vm_page_alloc1();
                if (mem == NULL)                /* XXX - fix this! */
                        panic("pmap_enter: segmap alloc failed");

Does someone know what this is about? Is there some config parameter
that I can tweak to avoid this? NKMEMCLUSTERS maybe?


						--Greg