From mboxrd@z Thu Jan 1 00:00:00 1970 From: Johannes Berg Subject: Re: [mac80211] BUG_ON with current -git (4.8.0-11417-g24532f7) Date: Thu, 13 Oct 2016 08:02:04 +0200 Message-ID: <1476338524.4904.1.camel@sipsolutions.net> References: <20161010150358.GA514@swordfish> <20161010153050.GA836@swordfish> <1476263106.5271.23.camel@sipsolutions.net> <20161012141245.GA436@swordfish> <1476282127.5271.30.camel@sipsolutions.net> (sfid-20161013_074011_616875_45F10514) Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit Cc: Sergey Senozhatsky , Andy Lutomirski , "David S. Miller" , Linux Wireless List , Network Development , "linux-kernel@vger.kernel.org" , Sergey Senozhatsky , "linux-next@vger.kernel.org" , Stephen Rothwell , Herbert Xu To: Andy Lutomirski Return-path: In-Reply-To: (sfid-20161013_074011_616875_45F10514) Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Wed, 2016-10-12 at 22:39 -0700, Andy Lutomirski wrote: > In a pinch, I have these patches sitting around: > > https://git.kernel.org/cgit/linux/kernel/git/luto/linux.git/commit/?h=x86/vmap_stack&id=0a39cfa6fbb5d5635c85253cc7d6b44b54822afd > https://git.kernel.org/cgit/linux/kernel/git/luto/linux.git/commit/?h=x86/vmap_stack&id=bf8cfa200b5a01383ea39fc8ce2f32909767baa8 That truly sounds like something we'd rather avoid in the TX/RX paths though, which should perform well. > I don't like them, though.  I think it's rather silly that we can't > just pass virtual addresses to the crypto code. I don't really understand it either, hence my question about the actual crash. I'll try to reproduce it in a VM. johannes