No deadline I/O scheduler for 2.6.29-0.137.rc5.git4.fc11
Bruno Wolff III
bruno at wolff.to
Fri Feb 20 19:21:08 UTC 2009
On Fri, Feb 20, 2009 at 14:12:33 -0500,
Dave Jones <davej at redhat.com> wrote:
> On Fri, Feb 20, 2009 at 01:03:00PM -0600, Bruno Wolff III wrote:
> > On Fri, Feb 20, 2009 at 13:48:53 -0500,
> > Dave Jones <davej at redhat.com> wrote:
> > > On Fri, Feb 20, 2009 at 12:41:41PM -0600, Bruno Wolff III wrote:
> > > > When I booted up the 2.6.29-0.137.rc5.git4.fc11.x86_64 kernel today I got
> > > > an error message about there not being a deadline scheduler. I didn't see
> > > > a changelog entry that covered this. Is this a temporary change?
> > >
> > > What's the exact message you're seeing ?
> >
> > This is what is in /var/log/messages:
> > Feb 20 12:37:14 cerberus kernel: I/O scheduler deadline not found
> >
> > I think only "I/O scheduler deadline not found" was displayed on the screen
> > during the boot process.
>
> The module exists, but nothing loads it by default.
>
> in rc.local or wherever you have it set up to use deadline, you also need
> to modprobe deadline-iosched.
I never had to do that before. I just noticed there error message today,
but looking back it seems to have first shown up on February 10th.
I am using the scheduler=deadline kernel parameter in grub.conf.
If I do it that way, do I add something to /etc/modprobe.conf?
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