From: "H. Peter Anvin" <hpa@zytor.com>
To: Mikael Pettersson <mikpe@it.uu.se>
Cc: Grant Grundler <grundler@parisc-linux.org>,
linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org
Subject: Re: [BUG 2.6.31-rc1] HIGHMEM64G causes hang in PCI init on 32-bit x86
Date: Sat, 27 Jun 2009 12:27:07 -0700 [thread overview]
Message-ID: <4A46728B.80301@zytor.com> (raw)
In-Reply-To: <19013.59767.139956.971375@pilspetsen.it.uu.se>
Mikael Pettersson wrote:
>
> Sure. This is from 2.6.31-rc1 with the commit commented out and
> replaced by a debug printk:
>
> identify_cpu: ->x86_phys_bits == 36, would change iomem_resource.end from 0xffffffffffffffff to 0x0000000fffffffff
>
> which looks correct for HIGHMEM64G.
OK, I'm going to revert the checkin... however, we still need to figure
out what the right answer here is, and why this broke (and why none of
my tests showed this failure...)
However, it is clear that the answer is more complex than we originally
anticipated. Mikael, would you be willing to run some experiments over
the near future?
-hpa
--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.
next prev parent reply other threads:[~2009-06-27 19:30 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-26 15:59 [BUG 2.6.31-rc1] HIGHMEM64G causes hang in PCI init on 32-bit x86 Mikael Pettersson
2009-06-27 1:13 ` Mikael Pettersson
2009-06-27 4:25 ` Grant Grundler
2009-06-27 5:31 ` H. Peter Anvin
2009-06-29 2:24 ` Grant Grundler
2009-06-27 9:42 ` Mikael Pettersson
2009-06-27 19:27 ` H. Peter Anvin [this message]
2009-06-27 21:34 ` Mikael Pettersson
2009-06-27 4:53 ` H. Peter Anvin
2009-06-27 9:45 ` Mikael Pettersson
2009-06-29 2:29 ` Grant Grundler
2009-06-29 5:00 ` H. Peter Anvin
2009-06-29 11:12 ` Mikael Pettersson
2009-06-29 11:21 ` Matthew Wilcox
2009-06-29 11:57 ` Mikael Pettersson
2009-06-29 18:29 ` H. Peter Anvin
2009-06-29 22:47 ` Yinghai Lu
2009-06-29 23:29 ` Yinghai Lu
2009-06-30 0:27 ` H. Peter Anvin
2009-06-30 1:14 ` Yinghai Lu
2009-06-30 1:18 ` H. Peter Anvin
2009-06-30 1:24 ` Yinghai Lu
2009-06-30 2:41 ` H. Peter Anvin
2009-06-30 1:26 ` Linus Torvalds
2009-06-30 1:41 ` Yinghai Lu
2009-06-30 8:45 ` Mikael Pettersson
2009-06-30 14:48 ` H. Peter Anvin
2009-06-30 15:00 ` Rolf Eike Beer
2009-06-30 18:52 ` H. Peter Anvin
2009-06-30 19:33 ` Yinghai Lu
2009-06-30 19:44 ` H. Peter Anvin
2009-06-30 20:05 ` Yinghai Lu
2009-06-30 21:21 ` H. Peter Anvin
2009-06-30 21:50 ` Yinghai Lu
2009-06-30 22:10 ` Linus Torvalds
2009-06-30 22:30 ` Yinghai Lu
2009-06-30 22:51 ` Yinghai Lu
2009-06-30 22:54 ` H. Peter Anvin
2009-06-30 23:00 ` Linus Torvalds
2009-06-30 23:04 ` Linus Torvalds
2009-06-30 23:13 ` Yinghai Lu
2009-06-30 23:19 ` H. Peter Anvin
2009-07-01 19:32 ` [PATCH] x86: add boundary check for 32bit res before expand e820 resource to alignment Yinghai Lu
2009-07-01 19:33 ` [PATCH] fix round_up/down Yinghai Lu
2009-07-01 19:39 ` Joe Perches
2009-07-01 20:02 ` Andrew Morton
2009-07-02 18:10 ` [PATCH] x86: add boundary check for 32bit res before expand e820 resource to alignment -v2 Yinghai Lu
2009-07-03 8:05 ` Ingo Molnar
2009-06-30 23:16 ` [BUG 2.6.31-rc1] HIGHMEM64G causes hang in PCI init on 32-bit x86 H. Peter Anvin
2009-06-30 20:10 ` Linus Torvalds
2009-06-30 1:44 ` H. Peter Anvin
2009-06-30 0:22 ` H. Peter Anvin
2009-06-27 19:33 ` [tip:x86/urgent] Revert "x86: cap iomem_resource to addressable physical memory" tip-bot for H. Peter Anvin
2009-06-27 21:49 ` Mikael Pettersson
2009-06-27 22:04 ` tip-bot for H. Peter Anvin
2009-06-28 7:39 ` tip-bot for H. Peter Anvin
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