On Thu, 15 Jan 2015, Aaro Koskinen wrote: > As printk() invocation can cause e.g. a TLB miss, printk() cannot be > called before the exception handlers have been properly initialized. > This can happen e.g. when netconsole has been loaded as a kernel module > and the TLB table has been cleared when a CPU was offline. Hmm, why can a call to `printk' cause a TLB miss, what's so special about this function? Does it use kernel mapped addresses for any purpose such as `vmalloc'? Maciej -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html