linux-kernel - Re: [PATCH 0/3] x86: remove x86_init.mapping.pagetable

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Date:	Tue, 21 Jun 2011 22:58:59 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Stefano Stabellini <stefano.stabellini@...citrix.com>
Cc:	"H. Peter Anvin" <hpa@...or.com>,
	"H. Peter Anvin" <hpa@...ux.intel.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	linux-kernel@...r.kernel.org, xen-devel@...ts.xensource.com,
	Yinghai Lu <yinghai@...nel.org>
Subject: Re: [PATCH 0/3] x86: remove x86_init.mapping.pagetable_reserve


-tip testing found that these patches cause the following boot crash 
on native:

[    0.000000] Base memory trampoline at [ffff88000009d000] 9d000 size 8192
[    0.000000] init_memory_mapping: 0000000000000000-000000003fff0000
[    0.000000]  0000000000 - 003fff0000 page 4k
[    0.000000] kernel direct mapping tables up to 3fff0000 @ 3fef0000-3fff0000
[    0.000000] Kernel panic - not syncing: alloc_low_page: ran out of memory

Config attached, full bootlog below. I've excluded the commits for 
now.

	Ingo

Decompressing Linux... Parsing ELF... done.
Booting the kernel.
[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 3.0.0-rc4-tip+ (mingo@...ius) (gcc version 4.6.0 20110509 (Red Hat 4.6.0-7) (GCC) ) #139263 SMP PREEMPT Tue Jun 21 22:47:13 CEST 2011
[    0.000000] Command line: root=/dev/sda6 earlyprintk=ttyS0,115200 console=ttyS0,115200 debug initcall_debug sysrq_always_enabled ignore_loglevel selinux=0 nmi_watchdog=1 panic=1 3
[    0.000000] BIOS-provided physical RAM map:
[    0.000000]  BIOS-e820: 0000000000000000 - 000000000009f800 (usable)
[    0.000000]  BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved)
[    0.000000]  BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
[    0.000000]  BIOS-e820: 0000000000100000 - 000000003fff0000 (usable)
[    0.000000]  BIOS-e820: 000000003fff0000 - 000000003fff3000 (ACPI NVS)
[    0.000000]  BIOS-e820: 000000003fff3000 - 0000000040000000 (ACPI data)
[    0.000000]  BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved)
[    0.000000]  BIOS-e820: 00000000fec00000 - 0000000100000000 (reserved)
[    0.000000] bootconsole [earlyser0] enabled
[    0.000000] debug: ignoring loglevel setting.
[    0.000000] NX (Execute Disable) protection: active
[    0.000000] DMI 2.3 present.
[    0.000000] DMI: System manufacturer System Product Name/A8N-E, BIOS ASUS A8N-E ACPI BIOS Revision 1008 08/22/2005
[    0.000000] e820 update range: 0000000000000000 - 0000000000010000 (usable) ==> (reserved)
[    0.000000] e820 remove range: 00000000000a0000 - 0000000000100000 (usable)
[    0.000000] No AGP bridge found
[    0.000000] last_pfn = 0x3fff0 max_arch_pfn = 0x400000000
[    0.000000] MTRR default type: uncachable
[    0.000000] MTRR fixed ranges enabled:
[    0.000000]   00000-9FFFF write-back
[    0.000000]   A0000-BFFFF uncachable
[    0.000000]   C0000-C7FFF write-protect
[    0.000000]   C8000-FFFFF uncachable
[    0.000000] MTRR variable ranges enabled:
[    0.000000]   0 base 0000000000 mask FFC0000000 write-back
[    0.000000]   1 disabled
[    0.000000]   2 disabled
[    0.000000]   3 disabled
[    0.000000]   4 disabled
[    0.000000]   5 disabled
[    0.000000]   6 disabled
[    0.000000]   7 disabled
[    0.000000] x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106
[    0.000000] found SMP MP-table at [ffff8800000f5680] f5680
[    0.000000] initial memory mapped : 0 - 20000000
[    0.000000] Base memory trampoline at [ffff88000009d000] 9d000 size 8192
[    0.000000] init_memory_mapping: 0000000000000000-000000003fff0000
[    0.000000]  0000000000 - 003fff0000 page 4k
[    0.000000] kernel direct mapping tables up to 3fff0000 @ 3fef0000-3fff0000
[    0.000000] Kernel panic - not syncing: alloc_low_page: ran out of memory

View attachment "config" of type "text/plain" (67868 bytes)