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Re: Out of mtrrs

Previous thread: [PATCH] seqlock: serialize against writers by Gregory Haskins on Friday, August 29, 2008 - 8:44 am. (28 messages)

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From: "J.A. Magallón"
Subject: Re: Out of mtrrs
Date: Friday, August 29, 2008 - 9:17 am

with disable_mtrr_trim, I get te same:

reg00: base=0xfffe0000 (4095MB), size= 128KB: write-protect, count=1
reg01: base=0xfffc0000 (4095MB), size= 128KB: uncachable, count=1
reg02: base=0x00000000 (   0MB), size= 256MB: write-back, count=1
reg03: base=0x10000000 ( 256MB), size= 256MB: write-back, count=1
reg04: base=0x1f800000 ( 504MB), size=   8MB: uncachable, count=1
reg05: base=0x1f600000 ( 502MB), size=   2MB: uncachable, count=1
reg06: base=0x1f500000 ( 501MB), size=   1MB: uncachable, count=1
reg07: base=0x00000000 (   0MB), size= 128KB: uncachable, count=1

Is there any other option ?

cicely:/usr/share/doc/kernel-doc# grep mtrr kernel-par*

--
J.A. Magallon <jamagallon()ono!com>     \               Software is  
like sex:
                                          \         It's better when  
it's free
Mandriva Linux release 2009.0 (Cooker) for i586
Linux 2.6.25-jam13 (gcc 4.3.1 20080515 (GCC) #1 SMP



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From: Yinghai Lu
Subject: Re: Out of mtrrs
Date: Friday, August 29, 2008 - 10:37 am

the mtrr looks crazy from setting by BIOS...

32bit or 64bit?

please set
CONFIG_MTRR=y
CONFIG_MTRR_SANITIZER=y
CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=1
CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT=1

and boot with "debug" in boot command line...

and send out

dmesg -s 262144 > dmesg.txt

YH
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Previous thread: [PATCH] seqlock: serialize against writers by Gregory Haskins on Friday, August 29, 2008 - 8:44 am. (28 messages)

Next thread: [PATCH] Don't trigger softlockup detector on network fs blocked tasks by Andi Kleen on Friday, August 29, 2008 - 11:06 am. (1 message)