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Message-ID: <20070806061459.GA26046@elte.hu> Date: Mon, 6 Aug 2007 08:14:59 +0200 From: Ingo Molnar <mingo@...e.hu> To: Jarek Poplawski <jarkao2@...pl> Cc: Gabriel C <nix.or.die@...glemail.com>, Linus Torvalds <torvalds@...ux-foundation.org>, Thomas Gleixner <tglx@...utronix.de>, Jean-Baptiste Vignaud <vignaud@...dmail.fr>, linux-kernel <linux-kernel@...r.kernel.org>, shemminger <shemminger@...ux-foundation.org>, linux-net <linux-net@...r.kernel.org>, netdev <netdev@...r.kernel.org>, Andrew Morton <akpm@...ux-foundation.org>, Alan Cox <alan@...rguk.ukuu.org.uk>, marcin.slusarz@...il.com Subject: Re: [patch (take 2)] genirq: fix simple and fasteoi irq handlers * Jarek Poplawski <jarkao2@...pl> wrote: > Subject: genirq: fix simple and fasteoi irq handlers > > After the "genirq: do not mask interrupts by default" patch interrupts > should be disabled not immediately upon request, but after they > happen. But, handle_simple_irq() and handle_fasteoi_irq() can skip > this once or more if an irq is just serviced (IRQ_INPROGRESS), > possibly disrupting a driver's work. nice fix. I think this is exactly the type of bug we were hoping to be able to identify and fix, and it could explain the regression in its entirety. The big question - does it fix Marcin's regression? Ingo - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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