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

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Date:	Sat, 30 Aug 2008 01:02:25 -0700
From:	"Yinghai Lu" <yhlu.kernel@...il.com>
To:	"Linus Torvalds" <torvalds@...ux-foundation.org>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	"Jeff Garzik" <jeff@...zik.org>, "Tejun Heo" <htejun@...il.com>,
	"Ingo Molnar" <mingo@...e.hu>,
	"David Witbrodt" <dawitbro@...global.net>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Kernel Testers" <kernel-testers@...r.kernel.org>
Subject: Re: Linux 2.6.27-rc5: System boot regression caused by commit a2bd7274b47124d2fc4dfdb8c0591f545ba749dd

please check fix v3

[PATCH] x86: split e820 reserved entries record to late v4 - fix v3

try to insert_resource second time, by expand the resource...

for case: e820 reserved entry is partially overlapped with bar res...

hope it will never happen

v3: use reserve_region_with_split() instead to hand overlapping
       with test case by extend 0xe0000000 - 0xeffffff to 0xdd800000 -
       get
               e0000000-efffffff : PCI MMCONFIG 0
                        e0000000-efffffff : reserved
       in /proc/iomem
       get
               found conflict for reserved [dd800000, efffffff], try
to reserve with split
                   __reserve_region_with_split: (PCI Bus #80)
[dd000000, ddffffff], res: (reserved) [dd800000, efffffff]
                   __reserve_region_with_split: (PCI Bus #00)
[de000000, dfffffff], res: (reserved) [de000000, efffffff]
               initcall pci_subsys_init+0x0/0x121 returned 0 after 381 msecs
       in dmesg

YH
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