Date: Wed, 8 Oct 1997 13:55:54 +0100 (BST) From: Gordon Henderson <gordon@drogon.net> To: hackers@freebsd.org Subject: Wheres all my memory going? Message-ID: <Pine.LNX.3.95.971008132127.26875P-100000@unicorn>
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I'm trying to run a top-level-domain nameserver with FreeBSD and every day
or so it just runs out of memory. The machine has 512MB of RAM. It's
running 2.2-STABLE with DG's patches to i386/conf/Makefile.i386,
i386/include/pmap.h and i386/include/vmparam.h to change the kernel
virtual address space.
Startup messages look like:
Oct 7 14:58:37 gtld-b /kernel: CPU: Pentium (132.96-MHz 586-class CPU)
Oct 7 14:58:37 gtld-b /kernel: Origin = "GenuineIntel" Id = 0x52c Stepping=12
Oct 7 14:58:37 gtld-b /kernel: Features=0x3bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,APIC>
Oct 7 14:58:38 gtld-b /kernel: real memory = 536870912 (524288K bytes)
Oct 7 14:58:38 gtld-b /kernel: avail memory = 524984320 (512680K bytes)
etc.
Machine boots OK. I start named (8.1.1) and it initialises. However, after
some time (a day or so) the machine start to run out of swap space. I only
allocated 64M of swap. (Is this the problem?) What I can't figure out is
where the memory is going. Output of 'top -b' shows:
last pid: 5653; load averages: 0.00, 0.00, 0.16 13:42:49
13 processes: 1 running, 12 sleeping
Mem: 242M Active, 50M Inact, 26M Wired, 34M Cache, 1726K Buf, 152M Free
Swap: 64M Total, 53M Used, 11M Free, 83% Inuse
PID USERNAME PRI NICE SIZE RES STATE TIME WCPU CPU COMMAND
5653 root 29 0 584K 820K RUN 0:00 0.00% 0.00% top
5426 root 18 0 452K 268K pause 0:00 0.00% 0.00% csh
101 root 18 0 332K 336K pause 0:01 0.00% 0.00% cron
5416 gordon 18 0 444K 128K pause 0:00 0.00% 0.00% csh
1 root 10 0 408K 92K wait 0:00 0.00% 0.00% init
148 root 3 0 180K 224K ttyin 0:00 0.00% 0.00% getty
144 root 3 0 180K 224K ttyin 0:00 0.00% 0.00% getty
287 root 2 0 283M 856K select 237:25 0.00% 0.00% named
457 root 2 -12 416K 444K select 0:10 0.00% 0.00% xntpd
70 root 2 0 204K 336K select 8:13 0.00% 0.00% syslogd
5415 root 2 0 168K 320K select 0:00 0.00% 0.00% rlogind
99 root 2 0 192K 240K select 0:00 0.00% 0.00% inetd
104 root 2 0 208K 228K select 0:00 0.00% 0.00% lpd
And that just does now add up!!! (Yes, named is supposed to be that large,
but it's no-where near the total memory of the machine)
I really really want this machine to work so I'm willing to give just
about anything a try. (And if if works, then we can have another serious
machine to add to the gallery...)
Gordon
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