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[Xen-devel] Re: [PATCH 0 of 1] Deal with Serial Over LAN (SOL) IPMI inte

To: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] Re: [PATCH 0 of 1] Deal with Serial Over LAN (SOL) IPMI interfaces.
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Mon, 14 Dec 2009 16:38:33 +0000
Cc: "Gary.Grebus@xxxxxxxxxx" <Gary.Grebus@xxxxxxxxxx>
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On 14/12/2009 15:10, "Konrad Rzeszutek Wilk" <konrad.wilk@xxxxxxxxxx> wrote:

> During the testing of Intel blades we found that the Serial Over LAN
> does not generate IRQs that well. Gary came up with a patch that
> figures out if it needs to poll or just work as before (IRQ). The benefit
> of this patch is that you don't need to do:
> com1=115200,8n1,0
> but instead can just do com1=115200,8n1 which is great in the field
> where you don't want the bootup file to change.

Kinda gross, and I'm not sure it's straightforward enough that I trust it on
all systems that currently work fine (vast majority). I *might* consider it
if it's a non-default boot option to turn it on. I don't believe that Linux
does such things either, at least by default.

 -- Keir

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