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Bug 86593

Summary: Celeron L2 Cache on kernel 2.4.18-27.8.0
Product: [Retired] Red Hat Linux Reporter: Juan <jfcamino>
Component: kernelAssignee: Arjan van de Ven <arjanv>
Status: CLOSED UPSTREAM QA Contact: Brian Brock <bbrock>
Severity: medium Docs Contact:
Priority: medium    
Version: 9   
Target Milestone: ---   
Target Release: ---   
Hardware: i686   
OS: Linux   
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2003-06-05 16:58:25 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description Juan 2003-03-26 05:10:07 UTC
Description of problem:
Kernel 2.4.18-27.8.0 does not print L2 Cache size for the Celeron
processor at boot time. The L1 Cache appears fine. Applying Patch
patch-2.4.21-pre5 does not seems to identify the L2 cache either.

Or what is more likely to be: I am missing to configure something.

Version-Release number of selected component (if applicable):

How reproducible:
intall/upgrate to kernel kernel 2.4.18-27.8.0 or patch-2.4.21-pre5 

Steps to Reproduce:
Actual results:
CPU: L1 I cache: 0K, L1 D cache: 8K

Expected results:
CPU: L2 cache: 128K

Additional info:
Linux version 2.4.18-27.8.0 ( (gcc version
3.2 20020903 (Red Ha
t Linux 8.0 3.2-7)) #1 Fri Mar 14 06:45:49 EST 2003
BIOS-provided physical RAM map:
 BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
 BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
 BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
 BIOS-e820: 0000000000100000 - 000000001fffc000 (usable)
 BIOS-e820: 000000001fffc000 - 000000001ffff000 (ACPI data)
 BIOS-e820: 000000001ffff000 - 0000000020000000 (ACPI NVS)
 BIOS-e820: 00000000fec00000 - 00000000fec01000 (reserved)
 BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
 BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved)
0MB HIGHMEM available.
511MB LOWMEM available.
On node 0 totalpages: 131068
zone(0): 4096 pages.
zone(1): 126972 pages.
zone(2): 0 pages.
Kernel command line: auto BOOT_IMAGE=linux ro
BOOT_FILE=/boot/vmlinuz-2.4.18-27.8.0 root=LABEL=/ agp
Initializing CPU#0
Detected 2100.150 MHz processor.
Speakup v-1.00 CVS: Tue Jun 11 14:22:53 EDT 2002 : initialized
Console: colour VGA+ 80x25
Calibrating delay loop... 4171.80 BogoMIPS
Memory: 511508k/524272k available (1315k kernel code, 10200k reserved, 990k
data, 172k init, 0k high
Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)
Inode cache hash table entries: 32768 (order: 6, 262144 bytes)
Mount cache hash table entries: 8192 (order: 4, 65536 bytes)
ramfs: mounted with options: <defaults>
ramfs: max_pages=64210 max_file_pages=0 max_inodes=0 max_dentries=64210
Buffer cache hash table entries: 32768 (order: 5, 131072 bytes)
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
CPU: Before vendor init, caps: bfebfbff 00000000 00000000, vendor = 0
CPU: L1 I cache: 0K, L1 D cache: 8K
CPU: After vendor init, caps: bfebfbff 00000000 00000000 00000000
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU:     After generic, caps: bfebfbff 00000000 00000000 00000000
CPU:             Common caps: bfebfbff 00000000 00000000 00000000
CPU: Intel(R) Celeron(R) CPU 2.10GHz stepping 07
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
POSIX conformance testing by UNIFIX
U: After vendor init, caps: bfebfbff 00000000 00000000 00000000

Comment 1 Juan 2003-03-27 04:05:33 UTC
patch-2.4.21-pre6 fix this bug

Comment 2 Alan Cox 2003-06-05 16:58:25 UTC
This is cosmetic and resolved upstream so closing