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When earlyprintk is not specified, boot messages are only stored in a ring buffer to be printed later by printk when console driver is registered. Critical messages from boot_emerg() are always printed immediately, even without earlyprintk. Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Acked-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>