Re: [RFC][PATCH 0/9] Network receive deadlock prevention for NBD

Pavel Machek
2006-08-15T19:17:55Z

Hi!

> Recently, Peter Zijlstra and I have been busily collaborating on a
> solution to the memory deadlock problem described here:
>
> http://lwn.net/Articles/144273/
> "Kernel Summit 2005: Convergence of network and storage paths"
>
> We believe that an approach very much like today's patch set is
> necessary for NBD, iSCSI, AoE or the like ever to work reliably.
> We further believe that a properly working version of at least one of
> these subsystems is critical to the viability of Linux as a modern
> storage platform.
...
> Unfortunately, a particularly nasty form of memory deadlock arises from
> the fact that receive side of the network stack is also a sort of

What about transmit side? I believe you need to reply to ARPs or you
will be unable to communicate over ethernet...
--
Thanks for all the (sleeping) penguins.