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Re: [Xen-users] max loopback devices

To: Fernando Maior <fernando.souto.maior@xxxxxxxxx>
Subject: Re: [Xen-users] max loopback devices
From: Kip Macy <kip.macy@xxxxxxxxx>
Date: Mon, 23 May 2005 21:56:39 -0700
Cc: Xen-users <xen-users@xxxxxxxxxxxxxxxxxxx>
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Reply-to: Kip Macy <kip.macy@xxxxxxxxx>
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I was responding to Andrew's comments not yours. And yes it looks like
something has changed with the loopback devices in more recent
versions of the linux kernel. max_loop=255 worked on 2.6.9 for an
earlier version of 2.0-testing. It appears that this option no longer
works. You might try taking a look at the loopback driver to see if
anything jumps out. I might have to take a look at this at some point
if it isn't fixed in the next month or so.

   -kip 

On 5/22/05, Fernando Maior <fernando.souto.maior@xxxxxxxxx> wrote:
> On 5/21/05, Kip Macy <kip.macy@xxxxxxxxx> wrote:
> > I fail to understand your attitude - I apologized 2 minutes after your
> > initial response. Why are you dragging this out?
> >
> >                             -Kip
> >
> > On 5/20/05, andrew mathes <amathes@xxxxxxxxxxxx> wrote:
> > > i just wanted to verify ... is this REALLY your kernel boot line, and do
> > > you have more than 8 loopback devices running?
> > >
> > > because it only worked for me having max_loop on the 2nd line, otherwise
> > > it wouldn't let me do it.
> > >
> > > and if you don't have more than 8 loopback devices running, the snootiness
> > > isn't appreciated, especially if you're not 100% sure that you're right.
> > >
> > > so my fault if yours is actually working in the configuration you have
> > > there, but the attitude is still unnecessary.
> > >
> > > so for anyone else ... try it on the vmlinuz line as well
> > >
> > > have a nice day
> > >
> > > On Wed, 11 May 2005, Kip Macy wrote:
> > >
> > > > In the future check the FAQ first, here is my grub line:
> > > > kernel /xen-3.0-debug-untested.gz dom0_mem=524288 max_loop=255
> > > > com1=9600,8n1 cdb=com1 console=com1 hz=1000
> > > >
> > > > On 5/11/05, andrew mathes <amathes@xxxxxxxxxxxx> wrote:
> > > >> I can't seem to increase the # beyond 8 ...
> > > >>
> > > >> i'm just using stock xen0 and xenU, here is my grub line:
> > > >>
> > > >> title Xen 2.0 / XenLinux 2.6.10
> > > >> kernel /xen.gz dom0_mem=256000
> > > >> module /vmlinuz-2.6.10-xen0 root=/dev/md1 max_loop=32 console=tty0 ro
> > > >>
> > > >> from all i can figure this should make it 32 ... anyone point me in the
> > > >> right direction?
> > > >>
> > > >> thanks again!
> > > >>
> > > >> _______________________________________________
> > > >> Xen-users mailing list
> > > >> Xen-users@xxxxxxxxxxxxxxxxxxx
> > > >> http://lists.xensource.com/xen-users
> > > >>
> > > >
> > > > _______________________________________________
> > > > Xen-users mailing list
> > > > Xen-users@xxxxxxxxxxxxxxxxxxx
> > > > http://lists.xensource.com/xen-users
> > > >
> > >
> >
> > _______________________________________________
> > Xen-users mailing list
> > Xen-users@xxxxxxxxxxxxxxxxxxx
> > http://lists.xensource.com/xen-users
> >
> 
> Kip,
> 
> That is not for you. I did not do it because of you, but
> because, if the FAQ is wrong (and that should not be
> considered a very weak possibility cause the software
> is going a lot of changes, and may be you remember
> a problem with the a feature of 3.0 that is in the
> documentation for 2.0), the FAQ should be corrected.
> 
> The phrase used in the FAQ is NOT clear to me. "The
> domain 0 kernel command line in Grub" is not clear
> to me. And that is why I suggested an example, in
> order to clarify the matters. May other people just
> misunderstand that line, and I would not like that
> happening.
> 
> If I was rude to you, I apologize, that was not and is
> not what I mean. And will never be.
> 
> --
> Bye,
> Fernando Maior
> LPIC/1 31908
>

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