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RE: [Xen-devel] ANOUNCEMENT: Debian packages for xen built on 2004-08-19 bk source

I tried a combination 'iSCSI Enterprise Target' (http://sourceforge.net/projects/iscsitarget/) (v0.2.6  but i think 0.3.0 is out now) + 'Linux-iSCSI Project' (http://linux-iscsi.sourceforge.net/). Unfortunately, after finally getting network booting working I found I was getting massive and almost immediate filesystem corruption. Both are running under xen which places a rather large number of variables into the equation, so I have no idea what is causing what.
I'm now battling with unh-iscsi (http://unh-iscsi.sourceforge.net/) which provides a target and an initiator, but looks like it needs a bit of hand holding to get running (changes to .h files to modify config, no init scripts, clumsy admin tools). It does support linux 2.6 though.
If I can get it working, i'll be trying the Linux-iSCSI initiator against the unh-iscsi target tonight.

From: Brian Wolfe
Sent: Thu 26/08/2004 6:32 PM
To: Ian Pratt
Cc: Rik van Riel; xen-devel@xxxxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-devel] ANOUNCEMENT: Debian packages for xen built on 2004-08-19 bk source

I know that heartbeat inside a priv XenLinux 2.6.7 crashes silently. It
fails on locking memory as non-swapable from what I could tell of strace
and whatnot. 8-P

I talked with Adam earlier tonight about taking over the debian
packaging of Xen. Obviously I'll avail myself of his experience in
managing Debianisms. :)

I too used a redhat install in a XenU domain today, as well as in a Xen0
domain. No glitches that I could see while installing packages. Good
luck in finding the cause Rik. :)

I'll wait until the beta is declared before I cut a new set of debs.
Hopefully I'll have nailed a few more XenLinux-Builder features and a
few Xen packaging bugs by then as well. I got my gpg key signed today so
hopefully I can start tossing the debs at Adam to be submitted to the
unstable and then testing archives on the main debian mirrors along with

Has anyone here gotten an iSCSI initiator and/or iSCSI target
modules/daemons working on a debian system? If so I'd love to find out
what package and kernel you got them working on specificly so I can
package them up as well. My first encounter with 4 different iSCSI
packages has been less than happy on 2.6.7. 8-/ 


On Thu, 2004-08-26 at 02:50, Ian Pratt wrote:
> > I've decided to hold out on building RPMs for a bit more
> > for two reasons:
> > 
> > 1) the kernel/hypervisor interface might still change
> >    before 2.0, so it's probably best if people keep
> >    building them together
> I think what we're going to do is to declare a 2.0 beta at the
> end of the week, in the hope that we encourage a few more
> existing 1.2 users to try 2.0 and get feedback.
> There are a couple of remaining things we're planning to do
> before the final 2.0 release:
>  * switch over to using Xen's new foreign-page grant-table
> mechanism, which is a useful interface clean up for domains
> wishing to share pages in a safe fashion.
>  * upgrade to This shouldn't be more than a few hours
> work, but its really boring ;-)
>  * do a few MMU optimisations to the 2.6 / Xen interface. In
> particular we want to switch over to using the writeable page
> tables mechanism by default. We should be able to get 2.6
> performance as good as 2.4. It's not bad right now, but we know
> we can do better.
> > 2) rpm crashes inside xenU, doing gettimeofday, sleep
> >    and then another gettimeofday, probably a divide by
> >    zero
> Ouch -- I haven't seen a crash for quite a while. We had a bunch
> of problems with time in 2.6 a couple weeks back, but I thought
> we'd put that behind us...
> Running rpm under FC2 in a XenU domain seems to work fine for me,
> so I think it might be something more subtle. 
> Feel free to post crash dumps ;-) 
> Ian

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