> More importantly, both kGraft and kpatch are pretty limited > in what kinds of updates they allow, and neither kGraft nor > kpatch has any clear path towards applying more complex > fixes to kernel images that I can see: kGraft can only > apply the simplest of fixes where both versions of a > function are interchangeable, and kpatch is only marginally > better at that - and that's pretty fundamental to both > projects! > > I think all of these problems could be resolved by shooting > for the moon instead: > > - work towards allowing arbitrary live kernel upgrades! > > not just 'live kernel patches'.
Note that live kernel upgrade would have interesting implications outside kernel: 1) glibc does "what kernel version is this?" caches result and alters behaviour accordingly. 2) apps will do recently_introduced_syscall(), get error and not attempt it again. Pavel -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/