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Date: Thu, 27 Aug 2009 21:29:38 -0400 From: David Dillow <dave@...dillows.org> To: "Eric W. Biederman" <ebiederm@...ssion.com> Cc: Francois Romieu <romieu@...zoreil.com>, Michael Riepe <michael.riepe@...glemail.com>, Michael Buesch <mb@...sch.de>, Rui Santos <rsantos@...popie.com>, Michael B??ker <m.bueker@...lin.de>, linux-kernel@...r.kernel.org, netdev@...r.kernel.org Subject: Re: [PATCH] r8169: Reduce looping in the interrupt handler. On Thu, 2009-08-27 at 18:17 -0700, Eric W. Biederman wrote: > Francois Romieu <romieu@...zoreil.com> writes: > > > Eric W. Biederman <ebiederm@...ssion.com> : > > [...] > >> Sounds good. > > > > Gah, I was not able to test it with a decent packet load. Patch below against > > the current tree: > > This kills the loop which was my concern. > > I will double check it works on my configuration. > Then we have the question of does it work for those folks who have cards > where the msi appeared to get lost. > > David any chance you can test this patch? It'll be this weekend, but I can see cases where it can lock my chip up -- they should be rare, but then I thought your case would be extremely rare... I think we'll need to go to a full separation between MSI and level-triggered interrupt handlers, or at the very least mask everything and handle it all in NAPI. That seems more viable now that I know Francois is not terribly worried about diverging from the vendor driver there. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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