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SubjectRe: Mem detection problem
On Thu, Feb 08, 2001 at 11:52:54AM -0500, Adam Schrotenboer wrote:
> This is actually a repost of a problem that received few serious replies
> (IMNSHO).
>
> Basically 2.4.0 detects 192 MB(maybe 191, but big whoop) of memory. This
> is correct. However, 2.4.1-ac6 (as did Linus-blessed 2.4.1) detects 64.
> The problem is simple. 2.4.1 and later for some reason uses bios-88,
> instead of e820.
>
> Attached are the dmesgs from 2.4.0 and 2.4.1-ac6.

[snip]

Perhaps on your machine, but not on all. Small amount of dmesg from mine.


Linux version 2.4.2-pre1 (root@BrightStar) (gcc version egcs-2.91.66 19990314/Linux (egcs-1.1.2 release)) #1 Tue Feb 6 05:34:32 CST 2001
BIOS-provided physical RAM map:
BIOS-e820: 000000000009f800 @ 0000000000000000 (usable)
BIOS-e820: 0000000000000800 @ 000000000009f800 (reserved)
BIOS-e820: 000000000000e800 @ 00000000000f1800 (reserved)
BIOS-e820: 0000000011f00000 @ 0000000000100000 (usable)
BIOS-e820: 000000000000e800 @ 00000000ffff1800 (reserved)
^^^^

On node 0 totalpages: 73728
zone(0): 4096 pages.
zone(1): 69632 pages.
zone(2): 0 pages.
Kernel command line: BOOT_IMAGE=242 ro root=342 hdd=ide-scsi
ide_setup: hdd=ide-scsi
Initializing CPU#0
Detected 334.098 MHz processor.
Console: colour VGA+ 80x25
Calibrating delay loop... 666.82 BogoMIPS
Memory: 287948k/294912k available (953k kernel code, 6576k reserved, 319k data, 172k init, 0k highmem)
^^^^^^ the 294912k is correct

Dentry-cache hash table entries: 65536 (order: 7, 524288 bytes)
Buffer-cache hash table entries: 16384 (order: 4, 65536 bytes)
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)

Cordially,
Michael Hobgood

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