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i386: print better early fault info

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improve early fault output.

old format:

 Int 14: CR2 010001e3  err 00000002  EIP c011f2f9  CS 00000060  flags 00010046
 Stack: c073695e c0791c10 00000000 ffffffff 00000000 01000000 00001000 c0791c10

new format:

 BUG: Int 14: CR2 010001e3
      EDI c1000000  ESI c0693c10  EBP c0637f9c  ESP c0637f08
      EBX 00000000  EDX 0000000e  ECX 00000000  EAX 010001e3
      err 00000002  EIP c0123119   CS 00000060  flg 00010046
 Stack: c064d589 c0693000 00000000 c0637f60 00c001e3 01000000 00038000 00000163
        00000000 00000163 00000000 ffffffff 00038000 00000000 00000000 00001000
        00001000 00000000 c0637f88 c06509be c0a2ae60 00001000 00001000 00000000

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Ingo Molnar 2007-10-17 18:04:41 +02:00 committed by Thomas Gleixner
parent 072f5d82b5
commit 382f64ab8f
1 changed files with 10 additions and 2 deletions
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12
arch/x86/kernel/head_32.S
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@ -452,6 +452,7 @@ early_page_fault:
early_fault:
cld
#ifdef CONFIG_PRINTK
pusha
movl $(__KERNEL_DS),%eax
movl %eax,%ds
movl %eax,%es
@ -543,8 +544,15 @@ int_msg:
.asciz "Unknown interrupt or fault at EIP %p %p %p\n"
fault_msg:
.ascii "Int %d: CR2 %p err %p EIP %p CS %p flags %p\n"
.asciz "Stack: %p %p %p %p %p %p %p %p\n"
.ascii \
/* fault info: */ "BUG: Int %d: CR2 %p\n" \
/* pusha regs: */ " EDI %p ESI %p EBP %p ESP %p\n" \
" EBX %p EDX %p ECX %p EAX %p\n" \
/* fault frame: */ " err %p EIP %p CS %p flg %p\n" \
\
"Stack: %p %p %p %p %p %p %p %p\n" \
" %p %p %p %p %p %p %p %p\n" \
" %p %p %p %p %p %p %p %p\n"
#include "../../x86/xen/xen-head.S"