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Re: [PATCH] x86_64: fix overlap between pagetable with bss section

Previous thread: [PATCH] SELinux: Fix double free in selinux_netlbl_sock_setsid() by Paul Moore on Monday, January 28, 2008 - 10:20 pm. (3 messages)

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[view original message]
From: Yinghai Lu <Yinghai.Lu@...>
To: Ingo Molnar <mingo@...>
Cc: Andrew Morton <akpm@...>, Linux Kernel Mailing List <linux-kernel@...>
Subject: [PATCH] x86_64: fix overlap between pagetable with bss section
Date: Monday, January 28, 2008 - 10:44 pm

[PATCH] x86_64: fix overlap between pagetable with bss section


one early crash on one 8 node 256g machine


Command line: console=uart8250,io,0x3f8,115200n8 initrd=kernel.org/mydisk11_x86_64.gz rw root=/dev/ram0 debug initcall_debug apic=debug acpi.debug_level=0x0000000f pci=routeirq ip=dhcp load_ramdisk=1 ramdisk_size=131072 BOOT_IMAGE=kernel.org/bzImage_2.6.25_k8.1

BIOS-provided physical RAM map:

 BIOS-e820: 0000000000000000 - 000000000009bc00 (usable)

 BIOS-e820: 000000000009bc00 - 00000000000a0000 (reserved)

 BIOS-e820: 00000000000e6000 - 0000000000100000 (reserved)

 BIOS-e820: 0000000000100000 - 00000000dffe0000 (usable)

 BIOS-e820: 00000000dffe0000 - 00000000dffee000 (ACPI data)

 BIOS-e820: 00000000dffee000 - 00000000dffff050 (ACPI NVS)

 BIOS-e820: 00000000dffff050 - 00000000e0000000 (reserved)

 BIOS-e820: 00000000fec00000 - 00000000fec01000 (reserved)

 BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)

 BIOS-e820: 00000000ff700000 - 0000000100000000 (reserved)

 BIOS-e820: 0000000100000000 - 0000004020000000 (usable)

Early serial console at I/O port 0x3f8 (options '115200n8')

console [uart0] enabled

end_pfn_map = 67239936

Kernel panic - not syncing: Duplicated early reservation d40000-e42000


Pid: 0, comm: swapper Not tainted 2.6.24-smp-g5a514e21-dirty #3


Call Trace:

 [<ffffffff80221545>] lapic_get_maxlvt+0x0/0x10

 [<ffffffff80221657>] clear_local_APIC+0x5/0xcf

 [<ffffffff80221726>] disable_local_APIC+0x5/0x17

 [<ffffffff8021fe16>] smp_send_stop+0x46/0x4c

 [<ffffffff80235293>] panic+0x94/0x13e

 [<ffffffff80bc3b03>] sctp_eps_proc_init+0x12/0x34

 [<ffffffff80b9f1c5>] reserve_early+0x30/0x6c

 [<ffffffff80803925>] init_memory_mapping+0x2cd/0x2dc

 [<ffffffff80b9dc01>] setup_arch+0x21f/0x44e

 [<ffffffff80b978be>] start_kernel+0x6f/0x2c7

 [<ffffffff80b971cc>] _sinittext+0x1cc/0x1d3


one later oops on other machine


Calling initcall 0xffffffff80bc33ac: sctp_init+0x0/0x711()

BUG: unable to handle kernel ...
[ message continues ]
[view original message]
From: Ingo Molnar <mingo@...>
To: Yinghai Lu <Yinghai.Lu@...>
Cc: Andrew Morton <akpm@...>, Linux Kernel Mailing List <linux-kernel@...>, Thomas Gleixner <tglx@...>, H. Peter Anvin <hpa@...>
Subject: Re: [PATCH] x86_64: fix overlap between pagetable with bss section
Date: Tuesday, January 29, 2008 - 1:42 pm

thanks, applied.


	Ingo

--
[view original message]
From: Yinghai Lu <Yinghai.Lu@...>
To: Ingo Molnar <mingo@...>
Cc: Andrew Morton <akpm@...>, Linux Kernel Mailing List <linux-kernel@...>, Thomas Gleixner <tglx@...>, H. Peter Anvin <hpa@...>
Subject: Re: [PATCH] x86_64: fix overlap between pagetable with bss section
Date: Tuesday, January 29, 2008 - 2:03 pm

can you use v2 instead? v2 have more comments.


Thanks


Yinghai Lu

--
[view original message]
From: Ingo Molnar <mingo@...>
To: Yinghai Lu <Yinghai.Lu@...>
Cc: Andrew Morton <akpm@...>, Linux Kernel Mailing List <linux-kernel@...>, Thomas Gleixner <tglx@...>, H. Peter Anvin <hpa@...>
Subject: Re: [PATCH] x86_64: fix overlap between pagetable with bss section
Date: Tuesday, January 29, 2008 - 1:47 pm

yes, i have v2.


	Ingo

--
[view original message]
From: Yinghai Lu <Yinghai.Lu@...>
To: Ingo Molnar <mingo@...>
Cc: Andrew Morton <akpm@...>, Linux Kernel Mailing List <linux-kernel@...>
Subject: [PATCH] x86_64: fix overlap between pagetable with bss section v2
Date: Tuesday, January 29, 2008 - 12:05 am

[PATCH] x86_64: fix overlap between pagetable with bss section v2


one early crash on one 8 node 256g machine


Command line: console=uart8250,io,0x3f8,115200n8 initrd=kernel.org/mydisk11_x86_64.gz rw root=/dev/ram0 debug initcall_debug apic=debug acpi.debug_level=0x0000000f pci=routeirq ip=dhcp load_ramdisk=1 ramdisk_size=131072 BOOT_IMAGE=kernel.org/bzImage_2.6.25_k8.1

BIOS-provided physical RAM map:

 BIOS-e820: 0000000000000000 - 000000000009bc00 (usable)

 BIOS-e820: 000000000009bc00 - 00000000000a0000 (reserved)

 BIOS-e820: 00000000000e6000 - 0000000000100000 (reserved)

 BIOS-e820: 0000000000100000 - 00000000dffe0000 (usable)

 BIOS-e820: 00000000dffe0000 - 00000000dffee000 (ACPI data)

 BIOS-e820: 00000000dffee000 - 00000000dffff050 (ACPI NVS)

 BIOS-e820: 00000000dffff050 - 00000000e0000000 (reserved)

 BIOS-e820: 00000000fec00000 - 00000000fec01000 (reserved)

 BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)

 BIOS-e820: 00000000ff700000 - 0000000100000000 (reserved)

 BIOS-e820: 0000000100000000 - 0000004020000000 (usable)

Early serial console at I/O port 0x3f8 (options '115200n8')

console [uart0] enabled

end_pfn_map = 67239936

Kernel panic - not syncing: Duplicated early reservation d40000-e42000


Pid: 0, comm: swapper Not tainted 2.6.24-smp-g5a514e21-dirty #3


Call Trace:

 [<ffffffff80221545>] lapic_get_maxlvt+0x0/0x10

 [<ffffffff80221657>] clear_local_APIC+0x5/0xcf

 [<ffffffff80221726>] disable_local_APIC+0x5/0x17

 [<ffffffff8021fe16>] smp_send_stop+0x46/0x4c

 [<ffffffff80235293>] panic+0x94/0x13e

 [<ffffffff80bc3b03>] sctp_eps_proc_init+0x12/0x34

 [<ffffffff80b9f1c5>] reserve_early+0x30/0x6c

 [<ffffffff80803925>] init_memory_mapping+0x2cd/0x2dc

 [<ffffffff80b9dc01>] setup_arch+0x21f/0x44e

 [<ffffffff80b978be>] start_kernel+0x6f/0x2c7

 [<ffffffff80b971cc>] _sinittext+0x1cc/0x1d3


it turns out there is overlap between pgtable and bss...


in System.map we have

ffffffff80d40420 b rsi_table

ffffffff...
[ message continues ]
Previous thread: [PATCH] SELinux: Fix double free in selinux_netlbl_sock_setsid() by Paul Moore on Monday, January 28, 2008 - 10:20 pm. (3 messages)

Next thread: [git pull] Fix recent Ocfs2 breakage by Mark Fasheh on Monday, January 28, 2008 - 11:33 pm. (8 messages)