Am Donnerstag, 7. November 2013, 12:14:17 schrieb Jeff Liu: Hi Jeff,
>Hi Stephan, > >As per your previous comments for this fix, you have promised another >approach which is promising to avoid entropy starvation, I got this >info from the following thread: [PATCH] avoid entropy starvation due >to stack protection >https://lkml.org/lkml/2012/12/14/267 There are several solutions: - Ted is trying to prevent a constant reseeding of the nonblocking_pool from the input_pool with a set of patches. I am unsure whether these patches find their way into the kernel. With those patches, we can happily keep get_random_bytes without too much strain on the input_pool entropy -- i.e. drop the conversion to get_random_int. - The begin of the email thread contains a patch that adds a new pool which I called the kernel_pool that is just just for kernel internal purposes. With Teds proposed changes to nonblocking_pool, nonblocking_pool would behave almost like my kernel_pool and thus my kernel_pool patch would not be needed. - Lastly I am trying to add a new seed source to random.c and kernel crypto API which could also be used as a stand-alone noise source. That proposed noise source would effectively alleviate a lot of entropy problems. The discussion for inclusion is raging at http://lkml.org/lkml/2013/10/11/582. Ted is having concerns and we are in a discussion to address those. > >My current fix has been merged into Andrew's tree(marked in "stuck" >state) for a long time, and it also works well in our internal >specific kernel, I'd like to know if there is any update from you, so >that we can move it along for mainline. :) > >Thanks, >-Jeff Ciao Stephan -- 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/
