From: Rolf Eike Beer <eike-kernel@sf-tec.de>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Mikael Pettersson <mikpe@it.uu.se>,
Yinghai Lu <yinghai@kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Ingo Molnar <mingo@elte.hu>, Matthew Wilcox <matthew@wil.cx>,
Grant Grundler <grundler@parisc-linux.org>,
Linux Kernel Mailing List <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: Tue, 30 Jun 2009 17:00:45 +0200 [thread overview]
Message-ID: <200906301700.55536.eike-kernel@sf-tec.de> (raw)
In-Reply-To: <4A4A25B1.5010102@zytor.com>
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H. Peter Anvin wrote:
> Mikael Pettersson wrote:
> > Thanks, 2.6.31-rc1 vanilla (which didn't boot) plus this one does boot.
> > /proc/iomem now looks as follows:
>
> ... as it should. So far so good, and this is a real problem.
>
> However, there is something that really bothers me: *why does this help
> on Mikael's system, which is PAE and therefore has a 64-bit
> resource_size_t*? This whole patch should be a no-op! There is still
> something that doesn't make sense.
>
> The use of "unsigned long" in ram_alignment() will overflow after 2^52
> bytes, but again, that's not the issue here, since the highest "start"
> value we have is (0x2 << 32).
I assume you meant "2^32" and (0x1 << 32)?
Eike
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next prev parent reply other threads:[~2009-06-30 15:08 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
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 [this message]
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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