Yinghai Lu 7ab073b6e0 x86: max_low_pfn_mapped fix, #1 ... fix crash on Ingo's big box: calling pci_iommu_init+0x0/0x17 PCI-DMA: Disabling AGP. PCI-DMA: aperture base @ d0000000 size 65536 KB PCI-DMA: using GART IOMMU. PCI-DMA: Reserving 64MB of IOMMU area in the AGP aperture BUG: unable to handle kernel paging request at ffff88000003be88 IP: [<ffffffff8026d377>] __alloc_pages_internal+0xc3/0x3f2 PGD 202063 PUD 206063 PMD 22fc00163 PTE 3b162 Oops: 0000 [1] SMP and e820 is: BIOS-e820: 0000000000000000 - 000000000009ac00 (usable) BIOS-e820: 000000000009ac00 - 00000000000a0000 (reserved) BIOS-e820: 00000000000ca000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 000000007ff70000 (usable) BIOS-e820: 000000007ff70000 - 000000007ff86000 (ACPI data) BIOS-e820: 000000007ff86000 - 0000000080000000 (ACPI NVS) BIOS-e820: 0000000080000000 - 00000000cfe00000 (usable) BIOS-e820: 00000000cfe00000 - 00000000d0000000 (reserved) BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved) BIOS-e820: 00000000fec00000 - 00000000fec10000 (reserved) BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved) BIOS-e820: 00000000fff80000 - 0000000100000000 (reserved) BIOS-e820: 0000000100000000 - 0000000830000000 (usable) system has 32 GB RAM installed. max_low_pfn_mapped is 0xcfe00, and GART aperture is not mapped. So try to use init_memory_mapping to map that area, because the iommu thinks that area is ram ... Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>		2008-07-13 08:19:15 +02:00
..
boot	Merge branch 'x86/mpparse' into x86/devel	2008-07-08 11:14:58 +02:00
configs
crypto
ia32	x86: rename threadinfo to TI.	2008-07-09 09:14:02 +02:00
kernel	x86: max_low_pfn_mapped fix, #1	2008-07-13 08:19:15 +02:00
kvm	KVM: Make kvm host use the paravirt clocksource structs	2008-06-24 21:02:32 +03:00
lguest	x86, VisWS: turn into generic arch, eliminate Kconfig specials	2008-07-10 18:55:47 +02:00
lib	x86: fix compile error in current tip.git	2008-07-10 21:55:59 +02:00
mach-default	x86, VisWS: turn into generic arch, eliminate Kconfig specials	2008-07-10 18:55:47 +02:00
mach-es7000	x86: make generic arch support NUMAQ	2008-06-10 11:34:42 +02:00
mach-generic	x86: make generic arch support NUMAQ, fix	2008-07-08 10:35:45 +02:00
mach-rdc321x
mach-voyager	x86: cleanup machine_specific_memory_setup, v2	2008-07-08 10:39:01 +02:00
math-emu	x86: coding style fixes to arch/x86/math-emu/reg_constant	2008-06-18 15:00:13 +02:00
mm	Merge branch 'linus' into x86/core	2008-07-12 07:29:02 +02:00
oprofile	x86/oprofile: disable preemption in nmi_shutdown	2008-06-24 13:48:29 +02:00
pci	Merge branch 'x86/generalize-visws' into x86/core	2008-07-11 21:22:18 +02:00
power	x86: remove end_pfn in 64bit	2008-07-08 13:10:38 +02:00
vdso	x86_64: vdso32 cleanup using feature flags	2008-07-11 15:44:58 +02:00
video
xen	x86: rename paravirtualized TSC functions	2008-07-09 07:43:28 +02:00
Kconfig	x86, VisWS: fix pci_direct_conf1 dependency	2008-07-10 20:10:48 +02:00
Kconfig.cpu	x86: mark x86_64 as having a working WP.	2008-07-09 09:14:21 +02:00
Kconfig.debug	Merge branch 'x86/numa' into x86/devel	2008-07-08 11:59:23 +02:00
Makefile	x86, VisWS: turn into generic arch, remove leftover files	2008-07-10 18:55:45 +02:00
Makefile_32.cpu