From: Helge Hafting <helge.hafting@aitel.hist.no>
To: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Alexander Huemer <alexander.huemer@sbg.ac.at>,
"Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com>,
"Rafael J. Wysocki" <rjw@sisk.pl>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Andi Kleen <andi@firstfloor.org>
Subject: Re: 2.6.27 mtrr fixes do not work when X starts
Date: Mon, 25 Aug 2008 13:10:24 +0200 [thread overview]
Message-ID: <48B29320.5070903@aitel.hist.no> (raw)
In-Reply-To: <86802c440808221024u1f152a73hf060f70e1b16dccb@mail.gmail.com>
Yinghai Lu wrote:
> On Fri, Aug 22, 2008 at 3:11 AM, Helge Hafting
>
[old bug report removed]
> please boot with "mtrr_spare_reg_nr=3 debug"
>
I did that, and got:
dmesg:
Command line: root=/dev/sda2 ro mtrr_spare_reg=3 debug
KERNEL supported cpus:
Intel GenuineIntel
AMD AuthenticAMD
Centaur CentaurHauls
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009f000 (usable)
BIOS-e820: 000000000009f000 - 00000000000a0000 (reserved)
BIOS-e820: 0000000000100000 - 000000007fe80400 (usable)
BIOS-e820: 000000007fe80400 - 0000000080000000 (reserved)
BIOS-e820: 00000000f4000000 - 00000000f8000000 (reserved)
BIOS-e820: 00000000fec00000 - 00000000fec10000 (reserved)
BIOS-e820: 00000000fed18000 - 00000000fed1c000 (reserved)
BIOS-e820: 00000000fed20000 - 00000000fed90000 (reserved)
BIOS-e820: 00000000feda0000 - 00000000feda6000 (reserved)
BIOS-e820: 00000000fee00000 - 00000000fee10000 (reserved)
BIOS-e820: 00000000ffe00000 - 0000000100000000 (reserved)
last_pfn = 0x7fe80 max_arch_pfn = 0x3ffffffff
x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106
total RAM coverred: 2047M
gran_size: 1M chunk_size: 1M num_reg: 8 lose RAM: 7M
gran_size: 1M chunk_size: 2M num_reg: 8 lose RAM: 7M
gran_size: 1M chunk_size: 4M num_reg: 8 lose RAM: 7M
gran_size: 1M chunk_size: 8M num_reg: 8 lose RAM: 7M
*BAD* gran_size: 1M chunk_size: 16M num_reg: 8 lose
RAM: -1M
gran_size: 1M chunk_size: 32M num_reg: 8 lose RAM: 0M
gran_size: 1M chunk_size: 64M num_reg: 7 lose RAM: 0M
gran_size: 1M chunk_size: 128M num_reg: 6 lose RAM: 0M
gran_size: 1M chunk_size: 256M num_reg: 5 lose RAM: 0M
gran_size: 1M chunk_size: 512M num_reg: 4 lose RAM: 0M
gran_size: 1M chunk_size: 1024M num_reg: 3 lose RAM: 0M
gran_size: 1M chunk_size: 2048M num_reg: 2 lose RAM: 0M
gran_size: 1M chunk_size: 4096M num_reg: 8 lose RAM: 7M
gran_size: 2M chunk_size: 2M num_reg: 8 lose RAM: 7M
gran_size: 2M chunk_size: 4M num_reg: 8 lose RAM: 7M
gran_size: 2M chunk_size: 8M num_reg: 8 lose RAM: 7M
*BAD* gran_size: 2M chunk_size: 16M num_reg: 8 lose
RAM: -1M
gran_size: 2M chunk_size: 32M num_reg: 8 lose RAM: 1M
gran_size: 2M chunk_size: 64M num_reg: 7 lose RAM: 1M
gran_size: 2M chunk_size: 128M num_reg: 6 lose RAM: 1M
gran_size: 2M chunk_size: 256M num_reg: 5 lose RAM: 1M
gran_size: 2M chunk_size: 512M num_reg: 4 lose RAM: 1M
gran_size: 2M chunk_size: 1024M num_reg: 3 lose RAM: 1M
gran_size: 2M chunk_size: 2048M num_reg: 2 lose RAM: 1M
gran_size: 2M chunk_size: 4096M num_reg: 8 lose RAM: 7M
gran_size: 4M chunk_size: 4M num_reg: 8 lose RAM: 7M
gran_size: 4M chunk_size: 8M num_reg: 8 lose RAM: 7M
*BAD* gran_size: 4M chunk_size: 16M num_reg: 8 lose
RAM: -1M
gran_size: 4M chunk_size: 32M num_reg: 8 lose RAM: 3M
gran_size: 4M chunk_size: 64M num_reg: 7 lose RAM: 3M
gran_size: 4M chunk_size: 128M num_reg: 6 lose RAM: 3M
gran_size: 4M chunk_size: 256M num_reg: 5 lose RAM: 3M
gran_size: 4M chunk_size: 512M num_reg: 4 lose RAM: 3M
gran_size: 4M chunk_size: 1024M num_reg: 3 lose RAM: 3M
gran_size: 4M chunk_size: 2048M num_reg: 2 lose RAM: 3M
gran_size: 4M chunk_size: 4096M num_reg: 8 lose RAM: 7M
gran_size: 8M chunk_size: 8M num_reg: 8 lose RAM: 7M
gran_size: 8M chunk_size: 16M num_reg: 8 lose RAM: 7M
gran_size: 8M chunk_size: 32M num_reg: 8 lose RAM: 7M
gran_size: 8M chunk_size: 64M num_reg: 7 lose RAM: 7M
gran_size: 8M chunk_size: 128M num_reg: 6 lose RAM: 7M
gran_size: 8M chunk_size: 256M num_reg: 5 lose RAM: 7M
gran_size: 8M chunk_size: 512M num_reg: 4 lose RAM: 7M
gran_size: 8M chunk_size: 1024M num_reg: 3 lose RAM: 7M
gran_size: 8M chunk_size: 2048M num_reg: 2 lose RAM: 7M
gran_size: 8M chunk_size: 4096M num_reg: 8 lose RAM: 7M
gran_size: 16M chunk_size: 16M num_reg: 7 lose
RAM: 15M
gran_size: 16M chunk_size: 32M num_reg: 7 lose
RAM: 15M
gran_size: 16M chunk_size: 64M num_reg: 7 lose
RAM: 15M
gran_size: 16M chunk_size: 128M num_reg: 6 lose
RAM: 15M
gran_size: 16M chunk_size: 256M num_reg: 5 lose
RAM: 15M
gran_size: 16M chunk_size: 512M num_reg: 4 lose
RAM: 15M
gran_size: 16M chunk_size: 1024M num_reg: 3 lose
RAM: 15M
gran_size: 16M chunk_size: 2048M num_reg: 2 lose
RAM: 15M
gran_size: 16M chunk_size: 4096M num_reg: 7 lose
RAM: 15M
gran_size: 32M chunk_size: 32M num_reg: 6 lose
RAM: 31M
gran_size: 32M chunk_size: 64M num_reg: 6 lose
RAM: 31M
gran_size: 32M chunk_size: 128M num_reg: 6 lose
RAM: 31M
gran_size: 32M chunk_size: 256M num_reg: 5 lose
RAM: 31M
gran_size: 32M chunk_size: 512M num_reg: 4 lose
RAM: 31M
gran_size: 32M chunk_size: 1024M num_reg: 3 lose
RAM: 31M
gran_size: 32M chunk_size: 2048M num_reg: 2 lose
RAM: 31M
gran_size: 32M chunk_size: 4096M num_reg: 6 lose
RAM: 31M
gran_size: 64M chunk_size: 64M num_reg: 5 lose
RAM: 63M
gran_size: 64M chunk_size: 128M num_reg: 5 lose
RAM: 63M
gran_size: 64M chunk_size: 256M num_reg: 5 lose
RAM: 63M
gran_size: 64M chunk_size: 512M num_reg: 4 lose
RAM: 63M
gran_size: 64M chunk_size: 1024M num_reg: 3 lose
RAM: 63M
gran_size: 64M chunk_size: 2048M num_reg: 2 lose
RAM: 63M
gran_size: 64M chunk_size: 4096M num_reg: 5 lose
RAM: 63M
gran_size: 128M chunk_size: 128M num_reg: 4 lose
RAM: 127M
gran_size: 128M chunk_size: 256M num_reg: 4 lose
RAM: 127M
gran_size: 128M chunk_size: 512M num_reg: 4 lose
RAM: 127M
gran_size: 128M chunk_size: 1024M num_reg: 3 lose
RAM: 127M
gran_size: 128M chunk_size: 2048M num_reg: 2 lose
RAM: 127M
gran_size: 128M chunk_size: 4096M num_reg: 4 lose
RAM: 127M
gran_size: 256M chunk_size: 256M num_reg: 3 lose
RAM: 255M
gran_size: 256M chunk_size: 512M num_reg: 3 lose
RAM: 255M
gran_size: 256M chunk_size: 1024M num_reg: 3 lose
RAM: 255M
gran_size: 256M chunk_size: 2048M num_reg: 2 lose
RAM: 255M
gran_size: 256M chunk_size: 4096M num_reg: 3 lose
RAM: 255M
gran_size: 512M chunk_size: 512M num_reg: 2 lose
RAM: 511M
gran_size: 512M chunk_size: 1024M num_reg: 2 lose
RAM: 511M
gran_size: 512M chunk_size: 2048M num_reg: 2 lose
RAM: 511M
gran_size: 512M chunk_size: 4096M num_reg: 2 lose
RAM: 511M
gran_size: 1024M chunk_size: 1024M num_reg: 1 lose
RAM: 1023M
gran_size: 1024M chunk_size: 2048M num_reg: 1 lose
RAM: 1023M
gran_size: 1024M chunk_size: 4096M num_reg: 1 lose
RAM: 1023M
gran_size: 2048M chunk_size: 2048M num_reg: 0 lose
RAM: 2047M
gran_size: 2048M chunk_size: 4096M num_reg: 0 lose
RAM: 2047M
Found optimal setting for mtrr clean up
gran_size: 1M chunk_size: 64M num_reg: 7 lose RAM: 0M
range0: 0000000000000000 - 000000007c000000
Setting variable MTRR 0, base: 0MB, range: 1024MB, type WB
Setting variable MTRR 1, base: 1024MB, range: 512MB, type WB
Setting variable MTRR 2, base: 1536MB, range: 256MB, type WB
Setting variable MTRR 3, base: 1792MB, range: 128MB, type WB
Setting variable MTRR 4, base: 1920MB, range: 64MB, type WB
range: 000000007c000000 - 0000000080000000
Setting variable MTRR 5, base: 1984MB, range: 64MB, type WB
hole: 000000007ff00000 - 0000000080000000
Setting variable MTRR 6, base: 2047MB, range: 1MB, type UC
x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106
After WB checking
MTRR MAP PFN: 0000000000000000 - 0000000000080000
After UC checking
MTRR MAP PFN: 0000000000000000 - 000000000007ff00
After sorting
MTRR MAP PFN: 0000000000000000 - 000000000007ff00
init_memory_mapping
0000000000 - 007fe00000 page 2M
007fe00000 - 007fe80000 page 4k
kernel direct mapping tables up to 7fe80000 @ 8000-c000
last_map_addr: 7fe80000 end: 7fe80000
DMI 2.4 present.
Xorg.0.log:
(II) Loading sub module "int10"
(II) LoadModule: "int10"
(II) Reloading /usr/lib/xorg/modules//libint10.so
(II) VESA(0): initializing int10
(II) VESA(0): Primary V_BIOS segment is: 0xc000
(II) VESA(0): VESA BIOS detected
(II) VESA(0): VESA VBE Version 3.0
(II) VESA(0): VESA VBE Total Mem: 14336 kB
(II) VESA(0): VESA VBE OEM: NVIDIA
(II) VESA(0): VESA VBE OEM Software Rev: 96.134
(II) VESA(0): VESA VBE OEM Vendor: NVIDIA Corporation
(II) VESA(0): VESA VBE OEM Product: G86 Board - dawson0
(II) VESA(0): VESA VBE OEM Product Rev: Chip Rev
(II) VESA(0): Splitting WC range: base: 0xfb000000, size: 0xe00000
(II) VESA(0): Splitting WC range: base: 0xfb800000, size: 0x600000
(==) VESA(0): Write-combining range (0xfbc00000,0x200000)
(WW) VESA(0): Failed to set up write-combining range (0xfb800000,0x600000)
(WW) VESA(0): Failed to set up write-combining range (0xfb000000,0xe00000)
(II) VESA(0): virtual address = 0x7f3ccaf43000,
physical address = 0xfb000000, size = 14680064
Just like last time, this lack of mtrr is reflected in dmesg:
mtrr: no more MTRRs available
mtrr: no more MTRRs available
$ cat /proc/mtrr
reg00: base=0x00000000 ( 0MB), size=1024MB: write-back, count=1
reg01: base=0x40000000 (1024MB), size= 512MB: write-back, count=1
reg02: base=0x60000000 (1536MB), size= 256MB: write-back, count=1
reg03: base=0x70000000 (1792MB), size= 128MB: write-back, count=1
reg04: base=0x78000000 (1920MB), size= 64MB: write-back, count=1
reg05: base=0x7c000000 (1984MB), size= 64MB: write-back, count=1
reg06: base=0x7ff00000 (2047MB), size= 1MB: uncachable, count=1
reg07: base=0xfbc00000 (4028MB), size= 2MB: write-combining, count=1
The problem is still there, I hope the output is useful.
I can test experimental patches if necessary.
Helge Hafting
next prev parent reply other threads:[~2008-08-25 11:10 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-06 14:05 2.6.27-rc1 mtrr fixes do not work Alexander Huemer
2008-08-07 20:14 ` Rafael J. Wysocki
2008-08-07 20:15 ` Pallipadi, Venkatesh
2008-08-07 20:23 ` Yinghai Lu
2008-08-07 20:26 ` Yinghai Lu
2008-08-07 22:14 ` Alexander Huemer
2008-08-07 23:16 ` Yinghai Lu
2008-08-07 23:17 ` Yinghai Lu
2008-08-07 23:30 ` Alexander Huemer
2008-08-07 23:58 ` Yinghai Lu
2008-08-08 0:28 ` Alexander Huemer
2008-08-14 14:09 ` Alexander Huemer
2008-08-14 17:31 ` Yinghai Lu
2008-08-21 14:52 ` 2.6.27 " Alexander Huemer
2008-08-21 15:27 ` Yinghai Lu
2008-08-21 18:44 ` Alexander Huemer
2008-08-22 10:11 ` 2.6.27 mtrr fixes do not work when X starts Helge Hafting
2008-08-22 17:24 ` Yinghai Lu
2008-08-25 11:10 ` Helge Hafting [this message]
2008-08-25 20:08 ` Yinghai Lu
2008-08-25 20:19 ` Alexander Huemer
2008-08-25 20:22 ` Yinghai Lu
[not found] ` <48B31508.6020305@sbg.ac.at>
[not found] ` <86802c440808251344h697a27d0i91486a836d258cb@mail.gmail.com>
[not found] ` <86802c440808251624u181a98eesd8a19ea6fd3d8d8c@mail.gmail.com>
[not found] ` <48B34056.5080100@sbg.ac.at>
[not found] ` <86802c440808251633s7bf8ecb2ua6ef187b5be563db@mail.gmail.com>
2008-08-29 15:09 ` 2.6.27 mtrr fixes do not work Alexander Huemer
2008-08-29 17:43 ` Yinghai Lu
2008-08-29 19:10 ` Alexander Huemer
2008-08-29 21:39 ` Yinghai Lu
2008-08-30 11:11 ` Helge Hafting
2008-08-26 9:32 ` 2.6.27 mtrr fixes do not work when X starts Helge Hafting
2008-08-26 16:43 ` Yinghai Lu
2008-08-27 12:53 ` Helge Hafting
2008-08-27 13:03 ` Andi Kleen
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