Date: Mon, 17 Mar 2008 21:45:11 +0100 From: Daniel Gerzo <danger@FreeBSD.org> To: questions@freebsd.org Subject: interrupt storms Message-ID: <14814001.20080317214511@rulez.sk>
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Hello, recently, we have inserted a new NIC into our machine, and after a few hours of operation, the machine starts to suffer from interrupt storms. Mar 17 21:05:24 ha-web1 kernel: interrupt storm detected on "irq22:"; throttling interrupt source Mar 17 21:05:54 ha-web1 last message repeated 30 times Mar 17 21:07:54 ha-web1 last message repeated 120 times Mar 17 21:17:54 ha-web1 last message repeated 600 times Mar 17 21:27:54 ha-web1 last message repeated 600 times Here is the output of vmstat -i: interrupt total rate irq1: atkbd0 5 0 irq9: acpi0 1 0 irq16: ohci0 1 0 irq17: ohci1 ohci3 1 0 irq18: ohci2 ohci4 1 0 irq20: em0 22617825 1714 irq22: em1 atapci0 699549409 53036 cpu0: timer 26380374 2000 cpu1: timer 26380325 2000 Total 774927942 58751 Any idea, why em1 and atapci0 share the same irq? I don't think this is correct. Is there some way how to work this around? Thanks. -- Best regards, Daniel mailto:danger@FreeBSD.org
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