linux-kernel - Re: early crash on ancient tablet related to no-bootmem

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Date:	Fri, 06 May 2011 00:46:04 +0200
From:	Stefan Hellermann <stefan@...2masters.de>
To:	Yinghai Lu <yinghai@...nel.org>
CC:	linux-kernel@...r.kernel.org
Subject: Re: early crash on ancient tablet related to no-bootmem

Am 06.05.2011 00:06, schrieb Yinghai Lu:
> 
> can you please boot with "ignore_loglevel debug memblock=debug"?
> 

Here we are:

early console in setup code
early console in decompress_kernel

Decompressing Linux... Parsing ELF... done.
Booting the kernel.
Linux version 2.6.39-rc6+ (stefan@...-stefan.lan) (gcc version 4.6.0
20110428 (Red Hat 4.6.0-6) (GCC) ) #1 Thu May 5 19:21:50 CEST 2011
BIOS-provided physical RAM map:
 BIOS-88: 0000000000000000 - 000000000009f000 (usable)
 BIOS-88: 0000000000100000 - 0000000000840000 (usable)
bootconsole [earlyser0] enabled
debug: ignoring loglevel setting.
Notice: NX (Execute Disable) protection missing in CPU!
DMI not present or invalid.
e820 update range: 0000000000000000 - 0000000000010000 (usable) ==>
(reserved)
e820 remove range: 00000000000a0000 - 0000000000100000 (usable)
last_pfn = 0x840 max_arch_pfn = 0x100000
    memblock_x86_reserve_range: [0x003a5000-0x003a6fff]              BRK
MEMBLOCK configuration:
 memory size = 0x7cf000
 memory.cnt  = 0x2
 memory[0x0]	[0x00000000010000-0x0000000009efff], 0x8f000 bytes
 memory[0x1]	[0x00000000100000-0x0000000083ffff], 0x740000 bytes
 reserved.cnt  = 0x1
 reserved[0x0]	[0x0000000009f000-0x000000003a6fff], 0x308000 bytes
initial memory mapped : 0 - 00800000
    memblock_x86_reserve_range: [0x0009e000-0x0009efff]       TRAMPOLINE
Base memory trampoline at [c009e000] 9e000 size 4096
init_memory_mapping: 0000000000000000-0000000000840000
 0000000000 - 0000840000 page 4k
kernel direct mapping tables up to 840000 @ 7fa000-800000
    memblock_x86_reserve_range: [0x007fa000-0x007fafff]          PGTABLE
8MB LOWMEM available.
  mapped low ram: 0 - 00840000
  low ram: 0 - 00840000
Zone PFN ranges:
  DMA      0x00000010 -> 0x00001000
  Normal   empty
Movable zone start PFN for each node
early_node_map[2] active PFN ranges
    0: 0x00000010 -> 0x0000009f
    0: 0x00000100 -> 0x00000840
On node 0 totalpages: 1999
free_area_init_node: node 0, pgdat c03555a0, node_mem_map 00000200
  DMA zone: 17 pages used for memmap
  DMA zone: 0 pages reserved
  DMA zone: 1982 pages, LIFO batch:0
BUG: Int 6: CR2   (null)
     EDI c0355868  ESI   (null)  EBP 00000830  ESP c0339f10
     EBX c03555a0  EDX 00000006  ECX 01000000  EAX fffffff4
     err   (null)  EIP c0361b85   CS 00000060  flg 00010082
Stack:   (null) c031d2f2 000007be   (null) c031d2f2 00000003   (null)
(null)
       00000010 00000018 00000002   (null) 00000002 c0361ea8   (null)
(null)
       00000100 00000840 00000001   (null)   (null) c0339f8c c0339fb8
c035e41b
Pid: 0, comm: swapper Not tainted 2.6.39-rc6+ #1
Call Trace:
 [<c036edb5>] ? 0xc036edb5
 [<c0361b85>] ? 0xc0361b85
 [<c0361ea8>] ? 0xc0361ea8
 [<c035e41b>] ? 0xc035e41b
 [<c035986d>] ? 0xc035986d
 [<c0358401>] ? 0xc0358401
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