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From: Jochen Hein <jochen@jochen.org>
To: linux-kernel <linux-kernel@vger.kernel.org>
Subject: [2.6] Missing L2-cache after warm boot
Date: Mon, 01 Dec 2003 15:04:22 +0100	[thread overview]
Message-ID: <87ptf8bpnd.fsf@echidna.jochen.org> (raw)


I'm running 2.6.0-test11 on an older Thinkpad 390E,
When booting into 2.6.0-test11 after running Windows2000 I get:

Dec  1 14:51:56 gswi1164 kernel: Initializing CPU#0
Dec  1 14:51:56 gswi1164 kernel: PID hash table entries: 1024 (order 10: 8192 bytes)
Dec  1 14:51:56 gswi1164 kernel: Detected 298.602 MHz processor.
Dec  1 14:51:56 gswi1164 kernel: Console: colour dummy device 80x25
Dec  1 14:51:56 gswi1164 kernel: Memory: 190848k/196544k available (2008k kernel code, 5060k reserved, 762k data, 148k init, 0k
highmem)
Dec  1 14:51:56 gswi1164 kernel: Calibrating delay loop... 587.77 BogoMIPS
Dec  1 14:51:56 gswi1164 kernel: Security Scaffold v1.0.0 initialized
Dec  1 14:51:56 gswi1164 kernel: Capability LSM initialized
Dec  1 14:51:56 gswi1164 kernel: Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Dec  1 14:51:56 gswi1164 kernel: Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
Dec  1 14:51:56 gswi1164 kernel: Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
Dec  1 14:51:56 gswi1164 kernel: CPU: L1 I cache: 16K, L1 D cache: 16K
Dec  1 14:51:56 gswi1164 kernel: Intel machine check architecture supported.
Dec  1 14:51:56 gswi1164 kernel: Intel machine check reporting enabled on CPU#0.
Dec  1 14:51:56 gswi1164 kernel: CPU: Intel Mobile Pentium II stepping 0a
Dec  1 14:51:56 gswi1164 kernel: Enabling fast FPU save and restore... done.
Dec  1 14:51:56 gswi1164 kernel: Checking 'hlt' instruction... OK.

When booting cold the boot messages are:

Dec  1 14:54:57 gswi1164 kernel: Initializing CPU#0
Dec  1 14:54:57 gswi1164 kernel: PID hash table entries: 1024 (order 10: 8192 bytes)
Dec  1 14:54:57 gswi1164 kernel: Detected 298.598 MHz processor.
Dec  1 14:54:57 gswi1164 kernel: Console: colour dummy device 80x25
Dec  1 14:54:57 gswi1164 kernel: Memory: 190848k/196544k available (2008k kernel code, 5060k reserved, 762k data, 148k init, 0k
highmem)
Dec  1 14:54:57 gswi1164 kernel: Calibrating delay loop... 587.77 BogoMIPS
Dec  1 14:54:57 gswi1164 kernel: Security Scaffold v1.0.0 initialized
Dec  1 14:54:57 gswi1164 kernel: Capability LSM initialized
Dec  1 14:54:57 gswi1164 kernel: Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Dec  1 14:54:57 gswi1164 kernel: Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
Dec  1 14:54:57 gswi1164 kernel: Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
Dec  1 14:54:57 gswi1164 kernel: CPU: L1 I cache: 16K, L1 D cache: 16K
Dec  1 14:54:57 gswi1164 kernel: CPU: L2 cache: 256K
Dec  1 14:54:57 gswi1164 kernel: Intel machine check architecture supported.
Dec  1 14:54:57 gswi1164 kernel: Intel machine check reporting enabled on CPU#0.
Dec  1 14:54:57 gswi1164 kernel: CPU: Intel Mobile Pentium II stepping 0a
Dec  1 14:54:57 gswi1164 kernel: Enabling fast FPU save and restore... done.
Dec  1 14:54:57 gswi1164 kernel: Checking 'hlt' instruction... OK.

/proc/cpuinfo contains (after warm boot):
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 6
model name      : Mobile Pentium II
stepping        : 10
cpu MHz         : 298.598
cache size      : 256 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 mmx fxsr
bogomips        : 587.77

Is there any way to find out, why the second level cache isn't
detected after a warm boot?

Jochen

-- 
#include <~/.signature>: permission denied

             reply	other threads:[~2003-12-01 14:15 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-12-01 14:04 Jochen Hein [this message]
2003-12-01 19:33 ` [2.6] Missing L2-cache after warm boot Randy.Dunlap
2003-12-02 13:16   ` Jochen Hein
2003-12-02 18:14     ` Mike Fedyk
2003-12-02 19:15       ` Jochen Hein
2003-12-02  3:00 ` Ian Hastie
2003-12-02 13:26   ` Jochen Hein
2003-12-03 17:10     ` Ian Hastie
2003-12-03 17:37       ` Jochen Hein

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