Date: Mon, 13 Nov 2006 18:49:27 +0100 From: Ivan Voras <ivoras@fer.hr> To: freebsd-stable@FreeBSD.ORG, ivoras@fer.hr Subject: Re: Cruel and unusual problems with Proliant ML350 Message-ID: <4558B027.10602@fer.hr> In-Reply-To: <20061113171945.GA26567@icarus.home.lan> References: <ej2l2d$h42$1@sea.gmane.org> <200611131633.kADGXO8J073080@lurza. secnetix.de> <20061113171945.GA26567@icarus.home.lan>
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Jeremy Chadwick wrote: > On Mon, Nov 13, 2006 at 05:33:24PM +0100, Oliver Fromme wrote: >> If it's really only a web server, then you probably don't >> need the USB ports. In that case you should remove ohci >> and ehci from your kernel. The USB interrupt handler is >> quite heavy-weight, so it can have a noticeable impact if >> the interrupt is shared with other devices. > > I'll agree with this (re: webservers not needing USB), except in > regards to one item: keyboards. Yup. And iLO. In fact, it appears that there's some builtin connection between USB, iLO, ethernet and ciss - changing IRQ of one of them in BIOS changes it for all of them :( > finished remove the keyboard and leave. PS/2 was never intended > to be hot-swappable, and as I'm sure many can attest to, removing And it's shaped worse than USB. > Summary: ukbd is one reason USB is useful on servers. Yes. From what I can see, these days the number of servers *without any* PS/2 connectors is passing 50%.
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