From mboxrd@z Thu Jan 1 00:00:00 1970 From: Valdis.Kletnieks@vt.edu Date: Wed, 24 Sep 2003 05:18:34 +0000 Subject: Re: NS83820 2.6.0-test5 driver seems unstable on IA64 MIME-Version: 1 Content-Type: multipart/mixed; boundary="==_Exmh_-1580433968P" Message-Id: List-Id: References: In-Reply-To: To: linux-ia64@vger.kernel.org --==_Exmh_-1580433968P Content-Type: text/plain; charset=us-ascii On Tue, 23 Sep 2003 15:58:29 PDT, "Luck, Tony" said: > Alan Cox wrote: > > On Maw, 2003-09-23 at 19:21, Luck, Tony wrote: > > > a) the programmer is playing fast and loose with types and/or casts. > > > b) the end-user is going to be disappointed with the performance. > > > > c) the programmer is being clever and knows the unaligned access is > > cheaper on average than the cost of making sure it cant happen > > Which is great until the "cleverly written" program is fed a data set > that pushes into the unaligned case far more frequently than the > programmer anticipated. Didn't we recently fix a DoS attack on the TCP stack that was basically this sort of thing with hashes? And crafting an attack against this would be a lot simpler than the hash-function attack..... --==_Exmh_-1580433968P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.2 (GNU/Linux) Comment: Exmh version 2.5 07/13/2001 iD8DBQE/cSkqcC3lWbTT17ARArzLAKCmZ0L+QeMvsMtsNJ7WF+FKE01+swCfcCn2 i7kRo3EGWP8yKi4kus7OqVQ= =Bzqo -----END PGP SIGNATURE----- --==_Exmh_-1580433968P--