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Re: kern/41679 (Lots of re0: watchdog timeout using qemu/kvm)
The following reply was made to PR kern/41679; it has been noted by GNATS.
From: Stephen Borrill <netbsd%precedence.co.uk@localhost>
Subject: Re: kern/41679 (Lots of re0: watchdog timeout using qemu/kvm)
Date: Fri, 2 May 2014 14:09:39 +0100 (BST)
On Fri, 2 May 2014, Stephen Borrill wrote:
>> On Sun, Dec 30, 2012 at 08:40:04AM +0000, Izumi Tsutsui wrote:
>> > > Synopsis: Lots of re0: watchdog timeout using qemu/kvm
>> > It's QEMU's problem ("interrupt moderation timer is disabled by default")
>> > and I'm not sure if it's worth to put workaround for qemu quirk
>> > in re(4) driver. (because wm(4) on qemu works)
>> If people keep tripping on it, if nothing else it makes us look bad.
>> Is there a way to get qemu installs to default to wm(4)?
> Problem also affects when running as HVM domU under XenServer where it is
> possible to change from re(4).
There is a workaround for XenServer to enable switching to wm(4):
However, this does require patching vendor-provided files in all your
dom0s that the VM may run on (could be a significant number in a XenServer
pool) and the files may be replaced without warning when applying a
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