Date: Tue, 17 Nov 2009 13:06:03 +0100 From: Florian Smeets <flo@smeets.im> To: Andrew Thompson <thompsa@FreeBSD.org> Cc: svn-src-stable@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org, svn-src-stable-8@freebsd.org Subject: Re: svn commit: r198659 - in stable/8/sys: . amd64/include/xen cddl/contrib/opensolaris contrib/dev/acpica contrib/pf dev/pci dev/usb/controller dev/xen/xenpci Message-ID: <4B0291AB.8090300@smeets.im> In-Reply-To: <200910292325.n9TNPrGq015678@svn.freebsd.org> References: <200910292325.n9TNPrGq015678@svn.freebsd.org>
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On 10/30/09 12:25 AM, Andrew Thompson wrote: > Author: thompsa > Date: Thu Oct 29 23:25:52 2009 > New Revision: 198659 > URL: http://svn.freebsd.org/changeset/base/198659 > > Log: > MFC r198151 > > Workaround buggy BIOS code in USB regard. By doing the BIOS to OS handover for > all host controllers at the same time, we avoid problems where the BIOS will > actually write to the USB registers of all the USB host controllers every time > we handover one of them, and consequently reset the OS programmed values. > Hi, this commit causes some of my servers (all of the same type), to detect interrupt storms on irq11: interrupt storm detected on "irq11:"; throttling interrupt source and it does not stop logging these. flo@relay3:~ 6 > vmstat -i interrupt total rate irq0: clk 229846 990 irq4: uart0 596 2 irq5: sis0 2850 12 irq8: rtc 29595 127 irq11: sis3 115799 499 irq14: ata0 2071 8 Total 380757 1641 sis3 is not used and not even up. Setting sysctl hw.intr_storm_threshold to high values e.g. 10000 does not help. The kernels on these servers do not have usb compiled in at all, but it's enabled in the BIOS. Setting hw.pci.usb_early_takeover=0 "fixes" the problem. Is this expected? Cheers, Florian
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