From: Joerg Roedel <joro@8bytes.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: Yinghai Lu <yinghai@kernel.org>,
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 19:21:47 +0200 [thread overview]
Message-ID: <20110413172147.GI19819@8bytes.org> (raw)
In-Reply-To: <20110413064609.GA18777@elte.hu>
On Wed, Apr 13, 2011 at 08:46:09AM +0200, Ingo Molnar wrote:
> Could you please send the before/after bootlog (in particular all memory init
> messages included) and your .config?
>
> before: f005fe12b90c: x86-64: Move out cleanup higmap [_brk_end, _end) out of init_memory_mapping()
> after: d2137d5af425: Merge branch 'linus' into x86/bootmem
>
> I've Cc:-ed more people who might have an idea about it.
Okay, I have done some more bisecting and debugging today.
First of all, I bisected between v2.6.37-rc2..f005fe12b90c which where
only a couple of patches and merged v2.6.38-rc4 in at every step. There
was no failure found.
Then I tried this again, but this time I merged v2.6.38-rc5 at every
step and was successful. The bad commit in this branch turned out to be
1a4a678b12c84db9ae5dce424e0e97f0559bb57c
which is related to memblock.
Then I tried to find out which change between 2.6.38-rc4 and 2.6.38-rc5
is needed to trigger the failure, so I used f005fe12b90c as a base,
bisected between v2.6.38-rc4..v2.6.38-rc5 and merged every bisect step
into the base and tested. Here the bad commit turned out to be
e6d2e2b2b1e1455df16d68a78f4a3874c7b3ad20
which is related to gart. It turned out that the gart aperture on that
box is on another position with these patches. Before it was as
0xa4000000 and now it is at 0xa0000000. It seems like this has something
to do with the root-cause.
Reverting commit 1a4a678b12c84db9ae5dce424e0e97f0559bb57c fixes the
problem btw. and booting with iommu=soft also works, but I have no idea
yet why the aperture at that address is a problem (with the patch
reverted the aperture lands at 0x80000000).
I have put some debug-data online. There is my .config and two
dmesg-files for good (==2.6.39-rc3 + revert) and bad (==2.6.39-rc3)
I also created these dmesg-files again with memblock=debug, maybe that
helps to find the problem. The files are at
http://www.8bytes.org/~joro/debug/
Or someone else has an idea about the issue...
Joerg
next prev parent reply other threads:[~2011-04-13 17:21 UTC|newest]
Thread overview: 96+ 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 [this message]
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
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 2:33 ` Linus Torvalds
2011-04-14 4:03 ` Tejun Heo
2011-04-14 9:36 ` Joerg Roedel
2011-04-14 8:09 ` Alan Cox
2011-04-15 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 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 15:29 ` 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 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 12:00 ` Joerg Roedel
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 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 8:55 ` 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
-- strict thread matches above, loose matches on Subject: below --
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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