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Commit 6574ffd7 authored by Andi Kleen's avatar Andi Kleen Committed by Linus Torvalds
Browse files

[PATCH] x86_64: Resolve the RIP of an early exception using kallsyms 



But do it after everything else to risk less from recursive
crashes.

Signed-off-by: default avatarAndi Kleen <ak@suse.de>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 7fd67843

arch/x86_64/kernel/head.S

+7 −0
Original line number Diff line number Diff line
@@ -213,6 +213,11 @@ ENTRY(early_idt_handler) 
	cmpl $2,early_recursion_flag(%rip)

	jz  1f

	call dump_stack

#ifdef CONFIG_KALLSYMS	

	leaq early_idt_ripmsg(%rip),%rdi

	movq 8(%rsp),%rsi	# get rip again

	call __print_symbol

#endif

1:	hlt

	jmp 1b

early_recursion_flag:
@@ -220,6 +225,8 @@ early_recursion_flag: 


early_idt_msg:

	.asciz "PANIC: early exception rip %lx error %lx cr2 %lx\n"

early_idt_ripmsg:

	.asciz "RIP %s\n"



.code32

ENTRY(no_long_mode)