128 MB RAM reported as 13 MB !!!

128 MB RAM reported as 13 MB !!!

Post by Alec » Sun, 31 Dec 1899 09:00:00



I've just installed RedHat 6 on my machine and found that it was extremely
slow and every operation resulted in a disk swap.

When I look at dmesg, this is what I got:


egcs-2.91.66 19990314/Linux (egcs-1.1.2 release)) #1 Mon Apr 19 23:00:46 EDT
1999
Detected 350799493 Hz processor.
Console: colour VGA+ 80x25
Calibrating delay loop... 349.80 BogoMIPS
Memory: 13460k/15360k available (996k kernel code, 412k reserved, 432k data,
60k init)
VFS: Diskquotas version dquot_6.4.0 initialized
CPU: Intel Pentium II (Deschutes) stepping 02
Checking 386/387 coupling... OK, FPU using exception 16 error reporting.
Checking 'hlt' instruction... OK.
POSIX conformance testing by UNIFIX

PCI: PCI BIOS revision 2.10 entry at 0xf0720
PCI: Using configuration type 1
PCI: Probing PCI hardware
Linux NET4.0 for Linux 2.2
Based upon Swansea University Computer Society NET3.039
NET4: Unix domain sockets 1.0 for Linux NET4.0.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
Initializing RT netlink socket
Starting kswapd v 1.5
Detected PS/2 Mouse Port.
Serial driver version 4.27 with MANY_PORTS MULTIPORT SHARE_IRQ enabled
ttyS00 at 0x03f8 (irq = 4) is a 16550A
ttyS01 at 0x02f8 (irq = 3) is a 16550A
ttyS03 at 0x02e8 (irq = 3) is a 16550A
pty: 256 Unix98 ptys configured
apm: BIOS version 1.2 Flags 0x03 (Driver version 1.9)
Real Time Clock Driver v1.09
RAM disk driver initialized:  16 RAM disks of 4096K size
PIIX4: IDE controller on PCI bus 00 dev 21
PIIX4: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0xd800-0xd807, BIOS settings: hda:DMA, hdb:DMA
    ide1: BM-DMA at 0xd808-0xd80f, BIOS settings: hdc:DMA, hdd:pio
hda: Maxtor 91360D8, ATA DISK drive
hdb: MATSHITA CR-588, ATAPI CDROM drive
hdc: QUANTUM FIREBALL CX6.4A, ATA DISK drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
hda: Maxtor 91360D8, 12970MB w/256kB Cache, CHS=1653/255/63
hdc: QUANTUM FIREBALL CX6.4A, 6149MB w/418kB Cache, CHS=13328/15/63
hdb: ATAPI 32X CD-ROM drive, 128kB Cache
Uniform CDROM driver Revision: 2.54
Floppy drive(s): fd0 is 1.44M
FDC 0 is a post-1991 82077
md driver 0.90.0 MAX_MD_DEVS=256, MAX_REAL=12
raid5: measuring checksumming speed
raid5: using high-speed MMX checksum routine
   pII_mmx   :   853.821 MB/sec
   p5_mmx    :   827.151 MB/sec
   8regs     :   604.647 MB/sec
   32regs    :   434.340 MB/sec
using fastest function: pII_mmx (853.821 MB/sec)
scsi : 0 hosts.
scsi : detected total.
md.c: sizeof(mdp_super_t) = 4096
Partition check:
hda: hda1 hda2 < hda5 hda6 hda7 hda8 hda9 >
hdc: [PTBL] [784/255/63] hdc1 hdc2 < hdc5 >
autodetecting RAID arrays
autorun ...
... autorun DONE.
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 60k freed
Adding Swap: 265036k swap-space (priority -1)

I'm I right that it is thinking I only have 13 mb of RAM?

How do I fix it?

Thanks

Alec

 
 
 

128 MB RAM reported as 13 MB !!!

Post by Michael McConnel » Sun, 31 Dec 1899 09:00:00


[Not sent to linux.redhat.install, my news server thinks it's read-only]


> I've just installed RedHat 6 on my machine and found that it was extremely
> slow and every operation resulted in a disk swap.

> When I look at dmesg, this is what I got:


> egcs-2.91.66 19990314/Linux (egcs-1.1.2 release)) #1 Mon Apr 19 23:00:46 EDT
> 1999
> Detected 350799493 Hz processor.
> Console: colour VGA+ 80x25
> Calibrating delay loop... 349.80 BogoMIPS
> Memory: 13460k/15360k available (996k kernel code, 412k reserved, 432k data,
> 60k init)

[snip]

Quote:> I'm I right that it is thinking I only have 13 mb of RAM?

> How do I fix it?

in /etc/lilo.conf, add at the top: append="mem=128M"

-- Michael "Soruk" McConnell
Eridani Star System  --  The Most Up-to-Date Red Hat Linux CDROMs Available

    "No. 'Eureka' is Greek for 'This bath is too hot.'" - Dr Who.

 
 
 

128 MB RAM reported as 13 MB !!!

Post by Artur Swietanowsk » Sun, 31 Dec 1899 09:00:00



> I've just installed RedHat 6 on my machine and found that it was
> extremely slow and every operation resulted in a disk swap.

> Memory: 13460k/15360k available (996k kernel code, 412k reserved,
> 432k data, 60k init)

> I'm I right that it is thinking I only have 13 mb of RAM?

See if your BIOS has a memory hole enabled and disable it. The 2.2.x
kernels detect up to 2G memory (I think) without any extra options in
the LILO, but it has to contiguous memory.

HTH,
---------------------------------------------------------------------
Artur Swietanowski                         http://swietano.spedia.net
Institut fr Statistik,  Operations Research  und  Computerverfahren,
Universit?t Wien,     Universit?tsstr. 5,    A-1010 Wien,     Austria
tel. +43 (1) 427 738 620                     fax  +43 (1) 427 738 629
---------------------------------------------------------------------

 
 
 

128 MB RAM reported as 13 MB !!!

Post by <l.. » Sun, 31 Dec 1899 09:00:00



Quote:> I've just installed RedHat 6 on my machine and found that it was extremely
> slow and every operation resulted in a disk swap.

> When I look at dmesg, this is what I got:

> Memory: 13460k/15360k available (996k kernel code, 412k reserved, 432k data,
> 60k init)

> I'm I right that it is thinking I only have 13 mb of RAM?

No of course not, it thinks you have 16 Meg :)

Quote:> How do I fix it?

Try booting with:
        linux mem=128M
if that works edit /etc/lilo.conf and add:
        append="mem=128M"
to the section for linux, rerun lilo and you should be set.

FYI this and much more information is available in the Linux-FAQ

 
 
 

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