Re: Linux 2.6.27-rc5: System boot regression caused by commit a2bd7274b47124d2fc4dfdb8c0591f545ba749dd

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To: Yinghai Lu <yhlu.kernel@...>
Cc: Rafael J. Wysocki <rjw@...>, Linux Kernel Mailing List <linux-kernel@...>, Jeff Garzik <jeff@...>, Tejun Heo <htejun@...>, Ingo Molnar <mingo@...>, David Witbrodt <dawitbro@...>, Andrew Morton <akpm@...>, Kernel Testers <kernel-testers@...>
Date: Friday, August 29, 2008 - 11:24 pm

On Fri, 29 Aug 2008, Yinghai Lu wrote:

Are you really really sure?

Try just removing the IORESOURCE_BUSY. As mentioned, if we expect the PCI 
BAR's to work with the e820 resources, then BUSY really is simply not 
right any more. Not that I think it should matter either..

The ones that are added _early_ should be IORESOURCE_BUSY (ie the ones 
that cover RAM), but the others we now expect to nest with PCI BARs.

But since we add them after we have parsed the BAR's, I don't even see why 
the BUSY bit should even matter - we've already added the fixed BARs, and 
any newly allocated non-fixed ones shouldn't be allocated in e820 areas 
_regardless_ of whether the BUSY bit is set or not.

So pls explain why it matters?

		Linus
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Messages in current thread:
Linux 2.6.27-rc5, Linus Torvalds, (Thu Aug 28, 7:26 pm)
Re: Linux 2.6.27-rc5, J.A. , (Sun Aug 31, 7:27 pm)
Re: Linux 2.6.27-rc5, Rafael J. Wysocki, (Fri Aug 29, 1:13 pm)
Re: Linux 2.6.27-rc5: System boot regression caused by commi..., Rafael J. Wysocki, (Fri Aug 29, 3:57 pm)
Re: Linux 2.6.27-rc5: System boot regression caused by commi..., Rafael J. Wysocki, (Fri Aug 29, 6:47 pm)
Re: Linux 2.6.27-rc5: System boot regression caused by commi..., Rafael J. Wysocki, (Fri Aug 29, 6:30 pm)
Re: Linux 2.6.27-rc5: System boot regression caused by commi..., Rafael J. Wysocki, (Sat Aug 30, 3:20 pm)
Re: Linux 2.6.27-rc5: System boot regression caused by commi..., Rafael J. Wysocki, (Sat Aug 30, 3:29 pm)
Re: Linux 2.6.27-rc5: System boot regression caused by commi..., Rafael J. Wysocki, (Sat Aug 30, 4:46 pm)
Re: Linux 2.6.27-rc5: System boot regression caused by commi..., Rafael J. Wysocki, (Sat Aug 30, 5:34 pm)
Re: Linux 2.6.27-rc5: System boot regression caused by commi..., Rafael J. Wysocki, (Sun Aug 31, 8:27 am)
Re: Linux 2.6.27-rc5: System boot regression caused by commi..., Rafael J. Wysocki, (Fri Aug 29, 6:31 pm)
Re: Linux 2.6.27-rc5: System boot regression caused by commi..., Rafael J. Wysocki, (Sat Aug 30, 9:32 am)
Re: Linux 2.6.27-rc5: System boot regression caused by commi..., Rafael J. Wysocki, (Sat Aug 30, 1:14 pm)
Re: Linux 2.6.27-rc5: System boot regression caused by commi..., Rafael J. Wysocki, (Sat Aug 30, 3:51 pm)
Re: Linux 2.6.27-rc5: System boot regression caused by commi..., Linus Torvalds, (Fri Aug 29, 11:24 pm)
Re: Linux 2.6.27-rc5: System boot regression caused by commi..., Rafael J. Wysocki, (Fri Aug 29, 6:32 pm)
cpu time oddity (was Re: Linux 2.6.27-rc5), Alistair John Strachan, (Fri Aug 29, 11:42 am)
Re: cpu time oddity (was Re: Linux 2.6.27-rc5), Alistair John Strachan, (Fri Aug 29, 11:56 am)