On Thu, Oct 09, 2008 at 10:51:36PM +0200, Zahemszky Gábor wrote: > Hi! > > I've just found in my machine's vmstat -i output: > > === > $ vmstat -i > interrupt total rate > irq1: atkbd0 15524 0 > irq6: fdc0 14 0 > irq12: psm0 279947 16 > irq15: ata1 41835 2 > irq16: uhci0 drm0 1407076 81 > irq17: atapci0 257828 14 > irq19: fwohci0++ 16 0 > irq21: uhci1 ahc0+ 41712 2 > irq22: pcm0 52848 3 > irq23: uhci2 ehci1 1 0 > cpu0: timer 33503897 1929 > > > irq256: em0 42054 2 > > ===^ > > cpu1: timer 33495040 1928 > Total 69137792 3981 > $ dmesg|fgrep em0 > em0: <Intel(R) PRO/1000 Network Connection 6.9.5> port 0x30c0-0x30df > mem 0x90300000-0x9031ffff,0x90324000-0x90324fff irq 20 at device 25.0 on pci0 > em0: Using MSI interrupt em0: [FILTER] > em0: Ethernet address: 00:19:d1:25:78:0a > $ uname -a > FreeBSD XXX 7.1-PRERELEASE FreeBSD 7.1-PRERELEASE #0: Thu Oct 2 21:35:45 > CEST 2008 > [EMAIL PROTECTED]:/usr/obj/usr/src/sys/GENERIC i386 $ > ==== > > What's that? (world and kernel are in sync)
It is an MSI-style interrupt [MSI=Message Signaled Interrupt] (available on PCI-E devices and a few PCI/PCI-X devices.) They get allocated fake irq-numbers starting at 256. I.e. it is a feature, and a bug or indication of any problem. -- <Insert your favourite quote here.> Erik Trulsson [EMAIL PROTECTED] _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
