Date: Wed, 13 Sep 2000 12:45:13 -0700 From: Cove Schneider <cove@clearink.com> To: freebsd-questions@FreeBSD.ORG Subject: Unable to use all swap? (How to up proc. memory limits?) Message-ID: <20000913124513.R79801@clearink.com>
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Hi All,
For some reason malloc(3) fails with an out of memory error even
though the machine has ~500MB swap left. Am I missing something
here? I'm guessing there is some setting in the config file that
I don't know about...
Any clues/help would be greatly appreciated.
Thanks,
Cove
uname:
----------------------
FreeBSD rommel.clearink.net 4.0-RELEASE FreeBSD 4.0-RELEASE #3: Wed Sep 13 12:20:45 PDT 2000 cove@rommel.clearink.net:/usr/src/sys/compile/ROMMEL i386
swapinfo (real memory = 131,060K bytes):
-----------------------------------------------------
Device 1024-blocks Used Avail Capacity Type
/dev/ad0s1b 524160 2816 521344 1% Interleaved
/dev/ad1s1b 524160 2792 521368 1% Interleaved
Total 1048320 5608 1042712 1%
testing:
----------------------
Here is the C program I've been testing this with, it mallocs 100mb/sec..
#include <unistd.h>
int main() {
int i;
for (i=1; i; i++) {
if (!malloc((1024*1024)*100)) {
perror("malloc()");
exit(1);
}
sleep(1);
printf("malloc(%u)\r", i);
}
}
Here is a snapshot done at 1/sec intervals of what happens to the
swap space when I run the program. It maxes out at %42 and then
dies (the process is then around 500MB or so). The %35 there is
the kernel freeing of the swap space after malloc(3) failed and
the test program exited.
Total 1048320 406636 641684 39%
Total 1048320 413012 635308 39%
Total 1048320 418148 630172 40%
Total 1048320 424220 624100 40%
Total 1048320 430756 617564 41%
Total 1048320 437060 611260 42%
Total 1048320 371796 676524 35%
Total 1048320 12200 1036120 1%
Total 1048320 12176 1036144 1%
Total 1048320 11924 1036396 1%
Total 1048320 11908 1036412 1%
Total 1048320 11908 1036412 1%
dmesg:
--------------------------
Copyright (c) 1992-2000 The FreeBSD Project.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
FreeBSD 4.0-RELEASE #3: Wed Sep 13 12:20:45 PDT 2000
cove@rommel.clearink.net:/usr/src/sys/compile/ROMMEL
Timecounter "i8254" frequency 1193182 Hz
Timecounter "TSC" frequency 451024594 Hz
CPU: Pentium III/Pentium III Xeon (451.02-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0x672 Stepping = 2
Features=0x383f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,XMM>
real memory = 134205440 (131060K bytes)
config> di bt0
No such device: bt0
Invalid command or syntax. Type `?' for help.
config> di aic0
No such device: aic0
Invalid command or syntax. Type `?' for help.
config> di aha0
No such device: aha0
Invalid command or syntax. Type `?' for help.
config> di adv0
No such device: adv0
Invalid command or syntax. Type `?' for help.
config> q
avail memory = 127098880 (124120K bytes)
Preloaded elf kernel "kernel" at 0xc02e0000.
Preloaded userconfig_script "/boot/kernel.conf" at 0xc02e009c.
Pentium Pro MTRR support enabled
md0: Malloc disk
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Intel 82443BX (440 BX) host to PCI bridge> on motherboard
pci0: <PCI bus> on pcib0
pcib1: <Intel 82443BX (440 BX) PCI-PCI (AGP) bridge> at device 1.0 on pci0
pci1: <PCI bus> on pcib1
pci1: <ATI Rage128-RL graphics accelerator> at 0.0 irq 11
isab0: <Intel 82371AB PCI to ISA bridge> at device 4.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel PIIX4 ATA33 controller> port 0xb800-0xb80f at device 4.1 on pci0
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
pci0: <Intel 82371AB/EB (PIIX4) USB controller> at 4.2 irq 12
chip1: <Intel 82371AB Power management controller> port 0xe800-0xe80f at device 4.3 on pci0
xl0: <3Com 3c905B-TX Fast Etherlink XL> port 0xb000-0xb07f mem 0xde800000-0xde80007f irq 12 at device 9.0 on pci0
xl0: Ethernet address: 00:50:04:a7:16:2f
miibus0: <MII bus> on xl0
xlphy0: <3Com internal media interface> on miibus0
xlphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
xl0: supplying EUI64: 00:50:04:ff:fe:a7:16:2f
xl1: <3Com 3c905B-TX Fast Etherlink XL> port 0xa800-0xa87f mem 0xde000000-0xde00007f irq 10 at device 10.0 on pci0
xl1: Ethernet address: 00:01:02:7c:d4:cd
miibus1: <MII bus> on xl1
xlphy1: <3Com internal media interface> on miibus1
xlphy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0
fdc0: FIFO enabled, 8 bytes threshold
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
atkbdc0: <keyboard controller (i8042)> at port 0x60-0x6f on isa0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
sc0: <System console> on isa0
sc0: VGA <16 virtual consoles, flags=0x200>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16550A
ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0
ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
ppc0: FIFO with 16/16/9 bytes threshold
ppi0: <Parallel I/O> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
plip0: <PLIP network interface> on ppbus0
IP packet filtering initialized, divert enabled, rule-based forwarding enabled, default to deny, logging limited to 100 packets/entry by default
IPv6 packet filtering initialized, default to accept, logging limited to 100 packets/entry
IP Filter: initialized. Default = pass all, Logging = enabled
IP Filter: v3.3.8
ata1-slave: identify retries exceeded
ad0: 8063MB <FUJITSU MPE3084AE> [16383/16/63] at ata0-master using UDMA33
ad1: 9787MB <WDC AC310200R> [19885/16/63] at ata0-slave using UDMA33
acd0: CDROM <SAMSUNG SC-140B> at ata1-master using PIO4
Mounting root from ufs:/dev/ad0s1a
xl0: starting DAD for fe80:0001::0250:04ff:fea7:162f
xl1: starting DAD for fe80:0002::0201:02ff:fe7c:d4cd
xl1: DAD complete for fe80:0002::0201:02ff:fe7c:d4cd - no duplicates found
xl0: DAD complete for fe80:0001::0250:04ff:fea7:162f - no duplicates found
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