Date: Thu, 24 Nov 2005 03:11:39 -0500 From: Kris Kennaway <kris@obsecurity.org> To: Massimo Lusetti <massimo@cedoc.mo.it> Cc: 'Kris Kennaway' <kris@obsecurity.org>, Darren Pilgrim <dmp@bitfreak.org>, freebsd-current@freebsd.org Subject: Re: em interrupt storm Message-ID: <20051124081139.GA17568@xor.obsecurity.org> In-Reply-To: <1132819355.4307.1.camel@massimo.datacode.it> References: <002801c5f081$f01ff200$642a15ac@smiley> <4384F807.6050105@samsco.org> <1132819355.4307.1.camel@massimo.datacode.it>
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--FCuugMFkClbJLl1L Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Nov 24, 2005 at 09:02:35AM +0100, Massimo Lusetti wrote: > On Wed, 2005-11-23 at 16:15 -0700, Scott Long wrote: >=20 > > What I've done is vacated the use of irq16 on my machines by disabling > > things like usb and if_em. This isn't ideal, of course. The storming > > doesn't usually cause a problem, but it can affect performance, > > especially if USB is involved. I only do this when I'm testing > > performance, otherwise I leave everything enabled and don't worry about > > it. 4.x won't see this problem since it handles interrupts in the > > more traditional way, but using 4.x also has many other tradeoffs that > > may or may not be worthwhile. >=20 > That's good to hear. Thanks for pointing it out Scott. As I mentioned in another reply, I do see a similar interrupt storm on the same hardware running 4.11. Kris --FCuugMFkClbJLl1L Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFDhXW7Wry0BWjoQKURAmo8AKDBo8tlxnDNAy8IO6dKWhzmyDmSggCfZJKe zLUVh2lhNE8mTJILt2trpJA= =xNBq -----END PGP SIGNATURE----- --FCuugMFkClbJLl1L--
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