From: Joerg Roedel <joro@8bytes.org>
To: Yinghai Lu <yinghai@kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>, Alex Deucher <alexdeucher@gmail.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
dri-devel@lists.freedesktop.org, "H. Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>, Tejun Heo <tj@kernel.org>
Subject: Re: Linux 2.6.39-rc3
Date: Wed, 13 Apr 2011 21:34:59 +0200 [thread overview]
Message-ID: <20110413193459.GL19819@8bytes.org> (raw)
In-Reply-To: <4DA5F62F.3030504@kernel.org>
On Wed, Apr 13, 2011 at 12:14:55PM -0700, Yinghai Lu wrote:
> thanks for the bisecting...
>
> so those two patches uncover some problems.
>
> [ 0.000000] Checking aperture...
> [ 0.000000] No AGP bridge found
> [ 0.000000] Node 0: aperture @ a0000000 size 32 MB
> [ 0.000000] Aperture pointing to e820 RAM. Ignoring.
> [ 0.000000] Your BIOS doesn't leave a aperture memory hole
> [ 0.000000] Please enable the IOMMU option in the BIOS setup
> [ 0.000000] This costs you 64 MB of RAM
> [ 0.000000] memblock_x86_reserve_range: [0xa0000000-0xa3ffffff] aperture64
> [ 0.000000] Mapping aperture over 65536 KB of RAM @ a0000000
>
> so kernel try to reallocate apperture. because BIOS allocated is pointed to RAM or size is too small.
It is actually beyond 4GB on that machine, this value read here is from
the previous kernel-boot. The BIOS does not reset these values on a
reboot.
> but your radeon does use [0xa0000000, 0xbfffffff)
Yes, I suspected that too (and spent a few hours reading radeon code),
but then I talked the Alex Deucher and he explained that these addresses
which the driver prints for GTT and VRAM are in the GPU address space
and do not refer to system ram. So this shouldn't be the problem.
Joerg
next prev parent reply other threads:[~2011-04-13 19:35 UTC|newest]
Thread overview: 108+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-12 0:40 Linux 2.6.39-rc3 Linus Torvalds
2011-04-12 9:02 ` Joerg Roedel
2011-04-12 14:15 ` Alex Deucher
2011-04-12 18:44 ` Joerg Roedel
2011-04-13 1:27 ` David Rientjes
2011-04-13 6:46 ` Ingo Molnar
2011-04-13 17:21 ` Joerg Roedel
2011-04-13 18:39 ` H. Peter Anvin
2011-04-13 19:26 ` Joerg Roedel
2011-04-13 18:51 ` H. Peter Anvin
2011-04-13 19:24 ` Joerg Roedel
2011-04-13 19:14 ` Yinghai Lu
2011-04-13 19:34 ` Joerg Roedel [this message]
2011-04-13 20:48 ` Yinghai Lu
2011-04-13 20:54 ` Linus Torvalds
2011-04-13 21:23 ` Yinghai Lu
2011-04-13 23:39 ` Linus Torvalds
2011-04-14 0:10 ` Yinghai Lu
2011-04-14 2:03 ` H. Peter Anvin
2011-04-14 2:27 ` Linus Torvalds
2011-04-14 2:27 ` Linus Torvalds
2011-04-14 2:33 ` Linus Torvalds
2011-04-14 2:33 ` Linus Torvalds
2011-04-14 4:03 ` Tejun Heo
2011-04-14 9:36 ` Joerg Roedel
2011-04-14 8:09 ` Alan Cox
2011-04-14 8:09 ` Alan Cox
2011-04-15 13:11 ` Joerg Roedel
2011-04-15 13:16 ` Ingo Molnar
2011-04-15 14:33 ` Joerg Roedel
2011-04-15 16:11 ` Alex Deucher
2011-04-15 15:46 ` Joerg Roedel
2011-04-15 16:11 ` Jerome Glisse
2011-04-16 16:35 ` Joerg Roedel
2011-04-16 16:35 ` Joerg Roedel
2011-04-16 18:54 ` Jerome Glisse
2011-04-16 18:54 ` Jerome Glisse
2011-04-17 14:09 ` Joerg Roedel
2011-04-18 1:12 ` Jerome Glisse
2011-04-18 15:23 ` Alex Deucher
2011-04-18 15:23 ` Alex Deucher
2011-04-18 15:29 ` Jerome Glisse
2011-04-18 15:33 ` Alex Deucher
2011-04-18 15:59 ` Jerome Glisse
2011-04-18 16:35 ` Alex Deucher
2011-04-15 14:04 ` Andreas Herrmann
2011-04-15 14:28 ` Joerg Roedel
2011-04-15 14:16 ` Alexandre Demers
2011-04-15 14:27 ` Joerg Roedel
2011-04-15 14:27 ` Joerg Roedel
2011-04-15 18:59 ` Alexandre Demers
2011-04-15 19:06 ` Ingo Molnar
2011-04-15 19:18 ` Yinghai Lu
2011-04-15 20:22 ` H. Peter Anvin
2011-04-16 12:01 ` Joerg Roedel
2011-04-16 12:01 ` Joerg Roedel
2011-04-16 12:00 ` Joerg Roedel
2011-04-16 12:21 ` Ingo Molnar
2011-04-16 12:21 ` Ingo Molnar
2011-04-16 0:03 ` [tip:x86/urgent] x86, amd: Disable GartTlbWlkErr when BIOS forgets it tip-bot for Joerg Roedel
2011-05-06 21:17 ` Linux 2.6.39-rc3 Linus Torvalds
2011-04-13 21:50 ` Joerg Roedel
2011-04-13 21:59 ` Yinghai Lu
2011-04-13 22:11 ` H. Peter Anvin
2011-04-13 22:01 ` H. Peter Anvin
2011-04-13 22:22 ` Joerg Roedel
2011-04-13 22:31 ` H. Peter Anvin
2011-04-14 8:59 ` Joerg Roedel
2011-04-13 19:48 ` Alex Deucher
2011-04-14 1:58 ` H. Peter Anvin
2011-04-14 1:58 ` H. Peter Anvin
2011-04-14 2:07 ` Dave Airlie
2011-04-14 6:10 ` H. Peter Anvin
2011-04-14 8:56 ` Joerg Roedel
2011-04-14 9:07 ` Dave Airlie
2011-04-14 9:11 ` Ingo Molnar
2011-04-14 14:31 ` H. Peter Anvin
2011-04-14 14:28 ` Alex Deucher
2011-04-14 21:09 ` Joerg Roedel
2011-04-14 21:34 ` Alex Deucher
2011-04-15 6:50 ` Joerg Roedel
2011-04-15 14:49 ` Andreas Herrmann
2011-04-15 8:26 ` Michel Dänzer
2011-04-15 8:26 ` Michel Dänzer
2011-04-15 8:55 ` Joerg Roedel
2011-04-12 19:09 ` Dave Jones
2011-04-12 19:21 ` Dave Jones
2011-04-12 19:55 ` Linus Torvalds
2011-04-12 20:13 ` Dave Jones
2011-04-14 8:20 ` Aneesh Kumar K.V
2011-04-18 22:57 ` Kay Sievers
2011-04-18 23:02 ` Dave Jones
2011-04-18 23:14 ` Kay Sievers
2011-04-19 11:42 ` Ted Ts'o
2011-04-19 8:23 ` Aneesh Kumar K.V
2011-04-19 8:37 ` Steven Whitehouse
2011-04-19 9:55 ` Kay Sievers
2011-04-12 20:20 ` Eric Sandeen
2011-04-12 20:27 ` Karel Zak
2011-04-12 20:33 ` Linus Torvalds
2011-04-14 20:24 ` Borislav Petkov
2011-04-14 20:55 ` Linus Torvalds
2011-04-15 4:14 ` Christoph Hellwig
2011-04-20 20:12 ` Borislav Petkov
2011-04-12 21:21 Alexandre Demers
2011-04-13 4:32 George Spelvin
2011-04-13 14:54 ` Linus Torvalds
2011-04-14 18:28 ` Pavel Machek
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