Home » Mailing list archives » linux-kernel » 2008 » July » 9

Re: [PATCH] x86: not overmap than end in init_memory_mapping - 64bit

!MAILaRCHIVE_VOTE_RePLACE
Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
[view in full thread]
From: Ingo Molnar <mingo@...>
To: Yinghai Lu <yhlu.kernel@...>
Cc: Thomas Gleixner <tglx@...>, H. Peter Anvin <hpa@...>, LKML <linux-kernel@...>
Subject: Re: [PATCH] x86: not overmap than end in init_memory_mapping - 64bit
Date: Wednesday, July 9, 2008 - 4:34 am

* Ingo Molnar <mingo@elte.hu> wrote:


found an early boot crash on a testbox:

[    0.000000] last_pfn = 0x3fff0 max_arch_pfn = 0x3ffffffff
[    0.000000] x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106
[    0.000000] init_memory_mapping
[    0.000000] kernel direct mapping tables up to 3fff0000 @ 8000-b000
[    0.000000] last_map_addr: 40000000 end: 3fff0000
[    0.000000] ACPI: RSDP 000F76F0, 0014 (r0 Nvidia)
PANIC: early exception 0e rip 10:ffffffff803d3b8a error 0 cr2 ffff88003fff3040
[    0.000000] Pid: 0, comm: swapper Not tainted 2.6.26-rc9-tip-00118-g95f03c7-dirty #16954
[    0.000000]
[    0.000000] Call Trace:
[    0.000000]  [<ffffffff80c05196>] early_idt_handler+0x56/0x6a
[    0.000000]  [<ffffffff803d3b8a>] ? acpi_tb_print_table_header+0xe/0xd5
[    0.000000]  [<ffffffff803d3bfc>] ? acpi_tb_print_table_header+0x80/0xd5
[    0.000000]  [<ffffffff803d42f4>] ? acpi_tb_scan_memory_for_rsdp+0xc8/0xd3

i bisected it down to:

|  a1007454854803f6fc63f0a881518cea87df6d9a is first bad commit
|  commit a1007454854803f6fc63f0a881518cea87df6d9a
|  Author: Yinghai Lu <yhlu.kernel@gmail.com>
|  Date:   Tue Jul 8 01:43:27 2008 -0700
|
|      x86: not overmap more than the end of RAM in init_memory_mapping - 64bit

with this config:

  http://redhat.com/~mingo/misc/config-Wed_Jul__9_09_43_06_CEST_2008.bad

crashlog:

 http://redhat.com/~mingo/misc/crashlog-Wed_Jul__9_09_43_06_CEST_2008.bad

i've pushed the failing tree out to tip/tmp.x86.Jul__9_09_43

reverting the commit solves the crash. The crash seems to be because 
ACPI is unable to access that memory range. (perhaps early_ioremap 
fails?)

	Ingo
--
Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
Messages in current thread:
[PATCH] x86: introduce page_size_mask for 64bit, Yinghai Lu, (Tue Jul 8, 4:41 am)
Re: [PATCH] x86: introduce page_size_mask for 64bit, Ingo Molnar, (Wed Jul 9, 3:38 am)
[PATCH] x86: not overmap than end in init_memory_mapping - 6..., Yinghai Lu, (Tue Jul 8, 4:43 am)
[PATCh] x86: overmapped fix when 4K pages on tail - 64bit, Yinghai Lu, (Wed Jul 9, 11:15 pm)
Re: [PATCh] x86: overmapped fix when 4K pages on tail - 64bit, Arjan van de Ven, (Thu Jul 10, 10:16 am)
Re: [PATCh] x86: overmapped fix when 4K pages on tail - 64bit, Andi Kleen, (Sun Jul 13, 10:57 am)
Re: [PATCh] x86: overmapped fix when 4K pages on tail - 64bit, Yinghai Lu, (Sun Jul 13, 2:17 pm)
Re: [PATCh] x86: overmapped fix when 4K pages on tail - 64bit, Andi Kleen, (Sun Jul 13, 2:48 pm)
Re: [PATCh] x86: overmapped fix when 4K pages on tail - 64bit, Ingo Molnar, (Sun Jul 13, 4:32 pm)
Re: [PATCh] x86: overmapped fix when 4K pages on tail - 64bit, Andi Kleen, (Sun Jul 13, 4:51 pm)
Re: [PATCh] x86: overmapped fix when 4K pages on tail - 64bit, H. Peter Anvin, (Sun Jul 13, 8:04 pm)
Re: [PATCh] x86: overmapped fix when 4K pages on tail - 64bit, Andi Kleen, (Mon Jul 14, 2:39 am)
Re: [PATCh] x86: overmapped fix when 4K pages on tail - 64bit, Yinghai Lu, (Sun Jul 13, 3:00 pm)
Re: [PATCh] x86: overmapped fix when 4K pages on tail - 64bit, Arjan van de Ven, (Sun Jul 13, 11:33 am)
Re: [PATCh] x86: overmapped fix when 4K pages on tail - 64bit, Andi Kleen, (Sun Jul 13, 2:25 pm)
Re: [PATCh] x86: overmapped fix when 4K pages on tail - 64bit, Ingo Molnar, (Thu Jul 10, 2:53 am)
Re: [PATCh] x86: overmapped fix when 4K pages on tail - 64bit, Yinghai Lu, (Thu Jul 10, 2:57 am)
Re: [PATCh] x86: overmapped fix when 4K pages on tail - 64bit, Ingo Molnar, (Thu Jul 10, 3:20 am)
Re: [PATCh] x86: overmapped fix when 4K pages on tail - 64bit, Yinghai Lu, (Thu Jul 10, 3:32 am)
[PATCH] x86: merge __acpi_map_table, Yinghai Lu, (Wed Jul 9, 11:16 pm)
Re: [PATCH] x86: merge __acpi_map_table, Ingo Molnar, (Thu Jul 10, 2:54 am)
[PATCH] x86: make e820_end return end_of_ram again for 64bit, Yinghai Lu, (Wed Jul 9, 11:17 pm)
[PATCH] x86: introduce max_low_pfn_mapped for 64bit, Yinghai Lu, (Thu Jul 10, 11:38 pm)
[PATCH] x86: max_low_pfn_mapped fix #3, Yinghai Lu, (Sat Jul 12, 5:32 pm)
[PATCH] x86: make 64bit hpet_set_mapping to use ioremap too, Yinghai Lu, (Sun Jul 13, 5:32 pm)
[PATCH] x86: make 64bit hpet_set_mapping to use ioremap too v2, Yinghai Lu, (Sun Jul 13, 5:50 pm)
[PATCH] x86: get x86_phys_bits early, Yinghai Lu, (Sun Jul 13, 5:30 pm)
[PATCH] x86: max_low_pfn_mapped fix #4, Yinghai Lu, (Sun Jul 13, 5:29 pm)
[PATCH] x86: max_low_pfn_mapped fix #2, Yinghai Lu, (Sat Jul 12, 5:31 pm)
[PATCH] x86: max_low_pfn_mapped fix #1, Yinghai Lu, (Sat Jul 12, 5:30 pm)
Re: [PATCH] x86: max_low_pfn_mapped fix #1, Ingo Molnar, (Sun Jul 13, 5:45 am)
[PATCH] x86: let 32bit use apic_ops too, Yinghai Lu, (Fri Jul 11, 9:41 pm)
[PATCH] x86: let 32bit use apic_ops too - fix, Yinghai Lu, (Mon Jul 14, 1:19 am)
Re: [PATCH] x86: let 32bit use apic_ops too - fix, Suresh Siddha, (Tue Jul 15, 1:33 pm)
Re: [PATCH] x86: let 32bit use apic_ops too - fix, Ingo Molnar, (Fri Jul 18, 1:07 pm)
Re: [PATCH] x86: let 32bit use apic_ops too - fix, Yinghai Lu, (Tue Jul 15, 2:10 pm)
Re: [PATCH] x86: let 32bit use apic_ops too - fix, Suresh Siddha, (Tue Jul 15, 2:27 pm)
Re: [PATCH] x86: let 32bit use apic_ops too - fix, Ingo Molnar, (Mon Jul 14, 3:12 am)
Re: [PATCH] x86: let 32bit use apic_ops too - fix, Suresh Siddha, (Mon Jul 14, 12:49 pm)
Re: [PATCH] x86: let 32bit use apic_ops too - fix, Ingo Molnar, (Fri Jul 18, 1:06 pm)
Re: [PATCH] x86: let 32bit use apic_ops too - fix, Yinghai Lu, (Mon Jul 14, 1:00 pm)
Re: [PATCH] x86: let 32bit use apic_ops too - fix, Suresh Siddha, (Mon Jul 14, 2:03 pm)
Re: [PATCH] x86: let 32bit use apic_ops too, Maciej W. Rozycki, (Sat Jul 12, 9:43 pm)
Re: [PATCH] x86: let 32bit use apic_ops too, Yinghai Lu, (Sat Jul 12, 9:45 pm)
Re: [PATCH] x86: let 32bit use apic_ops too, Maciej W. Rozycki, (Sat Jul 12, 9:54 pm)
Re: [PATCH] x86: let 32bit use apic_ops too, Suresh Siddha, (Sun Jul 13, 12:43 pm)
Re: [PATCH] x86: let 32bit use apic_ops too, Maciej W. Rozycki, (Sun Jul 13, 1:05 pm)
Re: [PATCH] x86: let 32bit use apic_ops too, Suresh Siddha, (Sat Jul 12, 9:08 pm)
Re: [PATCH] x86: let 32bit use apic_ops too, Yinghai Lu, (Sat Jul 12, 10:04 pm)
Re: [PATCH] x86: let 32bit use apic_ops too, Suresh Siddha, (Sun Jul 13, 12:28 pm)
Re: [PATCH] x86: let 32bit use apic_ops too, Maciej W. Rozycki, (Sun Jul 13, 12:51 pm)
Re: [PATCH] x86: let 32bit use apic_ops too, Cyrill Gorcunov, (Sun Jul 13, 1:16 pm)
Re: [PATCH] x86: let 32bit use apic_ops too, Maciej W. Rozycki, (Sun Jul 13, 7:46 pm)
Re: [PATCH] x86: let 32bit use apic_ops too, Cyrill Gorcunov, (Mon Jul 14, 12:48 pm)
Re: [PATCH] x86: let 32bit use apic_ops too, Maciej W. Rozycki, (Mon Jul 14, 1:20 pm)
Re: [PATCH] x86: let 32bit use apic_ops too, Cyrill Gorcunov, (Mon Jul 14, 2:09 pm)
Re: [PATCH] x86: let 32bit use apic_ops too, Maciej W. Rozycki, (Mon Jul 14, 2:24 pm)
Re: [PATCH] x86: let 32bit use apic_ops too, Cyrill Gorcunov, (Mon Jul 14, 2:32 pm)
[PATCH] x86: mach_apicdef.h need to include before smp.h, Yinghai Lu, (Fri Jul 11, 9:43 pm)
[PATCH] x86: make read_apic_id return final apicid, Yinghai Lu, (Fri Jul 11, 9:44 pm)
Re: [PATCH] x86: make read_apic_id return final apicid, Suresh Siddha, (Sat Jul 12, 9:19 pm)
[PATCH] x86: make 64bit have get_apic_id, Yinghai Lu, (Sat Jul 12, 4:01 am)
Re: [PATCH] x86: make 64bit have get_apic_id, Ingo Molnar, (Sun Jul 13, 2:28 am)
Re: [PATCH] x86: make 64bit have get_apic_id, Ingo Molnar, (Sun Jul 13, 2:59 am)
Re: [PATCH] x86: make 64bit have get_apic_id, Yinghai Lu, (Sun Jul 13, 3:05 am)
Re: [PATCH] x86: make 64bit have get_apic_id, Ingo Molnar, (Sun Jul 13, 5:23 am)
Re: [PATCH] x86: make 64bit have get_apic_id, Ingo Molnar, (Sun Jul 13, 5:28 am)
Re: [PATCH] x86: make 64bit have get_apic_id, Suresh Siddha, (Sun Jul 13, 12:15 pm)
Re: [PATCH] x86: introduce max_low_pfn_mapped for 64bit, Ingo Molnar, (Fri Jul 11, 4:26 am)
Re: [PATCH] x86: introduce max_low_pfn_mapped for 64bit, Yinghai Lu, (Fri Jul 11, 4:39 am)
Re: [PATCH] x86: introduce max_low_pfn_mapped for 64bit, Ingo Molnar, (Fri Jul 11, 4:51 am)
[PATCH] x86: save slit, Yinghai Lu, (Thu Jul 10, 11:36 pm)
Re: [PATCH] x86: save slit, Ingo Molnar, (Fri Jul 11, 4:22 am)
[PATCH] x86: e820 remove the range instead of update it to r..., Yinghai Lu, (Thu Jul 10, 7:17 am)
Re: [PATCH] x86: e820 remove the range instead of update it ..., Ingo Molnar, (Fri Jul 11, 4:20 am)
Re: [PATCH] x86: make e820_end return end_of_ram again for 6..., Ingo Molnar, (Thu Jul 10, 3:00 am)
Re: [PATCH] x86: not overmap than end in init_memory_mapping..., Ingo Molnar, (Wed Jul 9, 3:38 am)
Re: [PATCH] x86: not overmap than end in init_memory_mapping..., Ingo Molnar, (Wed Jul 9, 4:34 am)
Re: [PATCH] x86: not overmap than end in init_memory_mapping..., Ingo Molnar, (Wed Jul 9, 4:45 am)
Re: [PATCH] x86: not overmap than end in init_memory_mapping..., Yinghai Lu, (Wed Jul 9, 4:37 am)
Re: [PATCH] x86: not overmap than end in init_memory_mapping..., Ingo Molnar, (Wed Jul 9, 4:46 am)
Re: [PATCH] x86: not overmap than end in init_memory_mapping..., Yinghai Lu, (Wed Jul 9, 6:01 am)
Re: [PATCH] x86: not overmap than end in init_memory_mapping..., Ingo Molnar, (Wed Jul 9, 6:30 am)
Re: [PATCH] x86: not overmap than end in init_memory_mapping..., Yinghai Lu, (Wed Jul 9, 4:58 am)