Petr Vandrovec <[EMAIL PROTECTED]> writes: > Andi Kleen wrote: > > On Sunday 12 August 2007 10:12, Petr Vandrovec wrote: > >> Hello, > >> after I upgraded kernel on my box to current git, only thing it did > >> was rebooting in a loop. After some digging I found that it is silly > >> to apply alternative to memcpy by using that every same memcpy... > >> Sorry if it is known bug, I do not see it reported in my LKML mailbox... > > Ok Linus already applied your patch. Even though it's a really bad > > fragile hack, not better than the old bug. > > Petr are you double sure you really tested with > > ab144f5ec64c42218a555ec1dbde6b60cf2982d6 > > already applied? I bet not -- it is the symptom exactly fixed by this patch > > I'm quite sure that this patch is in my tree, as I have that "u8 > *instr = a->instr;" in apply_alternatives, and it seems that this one > was added by checkin you mention... My tree was synced up to:
Can you double check? I have a hard time believing it. > It does not actually change two bytes - it changes two bytes now > because alternative is two bytes long - it makes no sense to replace > whole function with NOPs - it is necessary when you fall through that It saves the jump. Admittedly not a big advantage. -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
