Date: Fri, 6 May 2011 17:32:12 +0200 From: Daan Vreeken <Daan@vehosting.nl> To: "Steven Hartland" <killing@multiplay.co.uk> Cc: Jack Vogel <jfvogel@gmail.com>, Peter Jeremy <peterjeremy@acm.org>, Current@freebsd.org Subject: Re: Interrupt storm with MSI in combination with em1 Message-ID: <201105061732.12418.Daan@vehosting.nl> In-Reply-To: <AF22429520FE47C694D6A647EEE48D8E@multiplay.co.uk> References: <201105041734.50738.Daan@vehosting.nl> <201105061702.43073.Daan@vehosting.nl> <AF22429520FE47C694D6A647EEE48D8E@multiplay.co.uk>
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Hi Steven, On Friday 06 May 2011 17:20:15 Steven Hartland wrote: > From: "Daan Vreeken" <Daan@vehosting.nl> > > > # vmstat -i > > interrupt total rate > > irq3: uart1 917384 63 > > --> irq16: ehci0 809547235 55608 > > Have you tried removing USB from the kernel? > > USB seems to be a common course of this behaviour and here at least > removing it from the kernel fixes in all cases assuming you don't > need it for something? No, I haven't tried that yet. I could disable USB to run some tests, but I'll eventually need it enabled again. I'll wait for a couple of hours to see if anyone can come up with a test to run on the machine while the interrupt is still storming. After that I'll reboot it with USB disabled. Thanks, -- Daan Vreeken VEHosting http://VEHosting.nl tel: +31-(0)40-7113050 / +31-(0)6-46210825 KvK nr: 17174380
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