Date: Mon, 6 Oct 2003 19:48:53 +0700 From: "Michael O. Boev" <mike@tric.tomsk.gov.ru> To: <freebsd-questions@FreeBSD.ORG> Subject: Why is em nic generating interrupts? Message-ID: <GFEGLCJPLEIINPCCACNGIEFNCAAA.mike@tric.tomsk.gov.ru>
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Hello, everyone! I've got a [uniprocessor] router machine with fxp and em nics. I've built my kernel with the following included: options DEVICE_POLLING options HZ=2500 and enabled polling in /etc/sysctl.conf. Having looked through a vmstat -i output I see that the em card is generating interrupts, although they should be disabled (as I see in em's source code). interrupt total rate stray irq0 1 0 stray irq6 1 0 npx0 irq13 1 0 ata0 irq14 2339 0 em0 irq10 421457 155 fxp0 irq5 2 0 atkbd0 irq1 3326 1 clk irq0 6778872 2500 rtc irq8 346899 127 Total 7552898 2786 What's happening? Is polling working in my case? If yes, why is vmstat showing interrupts? I see clearly, that fxp's counter doesn't increase, and em's is constantly growing. Thanks in advance to anyone for an idea! Please also CC: me as I'm not subscribed. -- Best wishes, [mike@tric.tomsk.gov.ru].
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