atom feed2 messages in org.freebsd.freebsd-usbusb/93640: [ehci] [irq] device ehci c...
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Miguel RamosMay 3, 2008 3:30 pm 
vw...@FreeBSD.orgMay 7, 2008 7:38 pm 
Subject:usb/93640: [ehci] [irq] device ehci causes interrupt storm on this MSI amd64 motherboard
From:Miguel Ramos (20@miguel.ramos.name)
Date:May 3, 2008 3:30:10 pm
List:org.freebsd.freebsd-usb

The following reply was made to PR usb/93640; it has been noted by GNATS.

From: "Miguel Ramos" <20@miguel.ramos.name> To: bug-@FreeBSD.org, mig@anjos.strangled.net Cc: Subject: Re: usb/93640: [ehci] [irq] device ehci causes interrupt storm on this
MSI amd64 motherboard Date: Sat, 3 May 2008 15:52:39 +0100

This problem is gone in RELENG_7 as of 2008-05-03. Interrupt count is now very low and normal, the machine is usable with device ehci. There has been a recent change in ehci_pci.c which might explain it, but I don't know what has been changed.

$FreeBSD: src/sys/dev/usb/ehci_pci.c,v 1.28.2.3 2008/04/23 18:50:19 jhb Exp= $

Thanks, whoever did it, either knowingly or not.

Miguel

-- # vmstat -i interrupt total rate irq1: atkbd0 13026 3 irq12: psm0 40 0 irq14: ata0 91649 27 irq15: ata1 1585 0 irq16: ral0 100675 30 irq17: pcm0 1 0 irq18: rl0 drm0 75705 22 irq19: cbb0 ohci0* 220576 66 irq21: fwohci0+ 668 0 cpu0: timer 6647026 1999 Total 7150951 2151

-- # uname -a FreeBSD targa 7.0-STABLE FreeBSD 7.0-STABLE #1: Sat May 3 14:51:59 WEST 20= 08 root@targa:/var/tmp/usr/src/sys/TARGA amd64

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