Date: Fri, 06 May 2011 11:46:41 -0400 From: Mike Tancsa <mike@sentex.net> To: Daan Vreeken <Daan@vehosting.nl> Cc: FreeBSD current mailing list <current@freebsd.org> Subject: Re: Interrupt storm with MSI in combination with em1 Message-ID: <4DC417E1.8010405@sentex.net> In-Reply-To: <201105061702.43073.Daan@vehosting.nl> References: <201105041734.50738.Daan@vehosting.nl> <201105052217.51893.Daan@vehosting.nl> <BANLkTi=AMzUbjfJmvtdGaBM69YzZ2tq=0g@mail.gmail.com> <201105061702.43073.Daan@vehosting.nl>
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On 5/6/2011 11:02 AM, Daan Vreeken wrote: > One core is spending half it's time handling interrupts. > /var/log/messages doesn't show any new message since the storm > started. "vmstat -i" now shows : > > # vmstat -i > interrupt total rate > irq3: uart1 917384 63 > --> irq16: ehci0 809547235 55608 > > Apart from spending far too much time handling interrupts, the machine works > fine, so I'll let it run in case anyone wants me to try something on it. > Do you have any usb devices plugged in ? ie what does usbconfig show ? Also, what USB settings do you have in the BIOS ? I would try disabling usb legacy mode and and things like 80-64 translation. ---Mike -- ------------------- Mike Tancsa, tel +1 519 651 3400 Sentex Communications, mike@sentex.net Providing Internet services since 1994 www.sentex.net Cambridge, Ontario Canada http://www.tancsa.com/
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