Messages in this thread Patch in this message | | | Date | Mon, 6 Feb 2006 21:00:33 +0100 | From | Ingo Molnar <> | Subject | [patch] x86: print out early faults via early_printk() |
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lost a few hours debugging an early-bootup fault within printk itself, which manifested itself as a hard to debug early hang.
This patch makes it much easier by printing out early faults via early_printk(), which function is alot simpler than a full printk, and hence more likely to succeed in emergencies. (We do not recover from early faults anyway, so there's no loss from not having these messages in the normal printk buffer.)
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---- arch/i386/kernel/head.S | 4 ++++ 1 files changed, 4 insertions(+)
Index: linux/arch/i386/kernel/head.S =================================================================== --- linux.orig/arch/i386/kernel/head.S +++ linux/arch/i386/kernel/head.S @@ -398,7 +398,11 @@ ignore_int: pushl 32(%esp) pushl 40(%esp) pushl $int_msg +#ifdef CONFIG_EARLY_PRINTK + call early_printk +#else call printk +#endif addl $(5*4),%esp popl %ds popl %es - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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