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

[James Harper <JamesH@xxxxxxxxxxxxxxxx>]

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.

 

James

---

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
XenLinux-Builder.

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-/ 

Brian


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 2.8.6.1. 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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