Xen 2.0 beta

Xen 2.0 beta

[Ian Pratt]

Folks,

There have been some pretty significant checkins to the unstable
tree today:

First off, we've made it so that by default 'make world' builds a
Linux 2.6.8.1 kernel rather than 2.4.27. I know a lot of people
still use 2.4, but I think its important the 2.0 release is
"2.6 native".

Secondly, a number of important MMU optimisations have just been
enabled in the 2.6.8.1 tree. Performance should now be as good as
2.4. We've done a fair bit of testing, but should you have
problems, it would be useful to know if you can repeat with
CONFIG_WRITABLE_PAGETABLES disabled in the linux kernel.

I've created a new xen-2.0.bk tree on xen.bkbits.net which is
where the source for the 2.0 release will live. For the next few
weeks we expect this tree to simply be a time-lagged version of
the xeno-unstable.bk tree: bug fixes will get road tested in the
unstable tree then pushed to 2.0 if no problems are reported.

To clone the proto 2.0 tree use "bk clone bk://xen.bkbits.net/xen-2.0.bk"

NB: We've named the repository 'xen' rather than 'xeno' as the
latter name no longer makes sense now that the XenoServer project
now lives in a different repository. 

We'd be grateful if as many people as possible could test this
beta over the next few days, so we can shake out any bugs before
the official 2.0 release, hopefully next week or so.

Thanks,
Ian







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Re: Xen 2.0 beta

[ron minnich]

how hard will it be to forward-port the plan 9 code if the DOM0 is 2.6? 
Is there some rough measure?

thanks

ron



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Re: Xen 2.0 beta

[Ian Pratt]

> how hard will it be to forward-port the plan 9 code if the DOM0 is 2.6? 
> Is there some rough measure?

Whether dom0 is 2.4 or 2.6 shouldn't make any difference
whatsoever to the plan 9 port. You should find your domain
builder works on 2.6 just as before, and the IO device interfaces
are identical.

Ian



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Re: Xen 2.0 beta

[ron minnich]

On Sat, 28 Aug 2004, Ian Pratt wrote:

> Whether dom0 is 2.4 or 2.6 shouldn't make any difference
> whatsoever to the plan 9 port. You should find your domain
> builder works on 2.6 just as before, and the IO device interfaces
> are identical.

Impressive! thanks!

ron



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RE: Xen 2.0 beta

[James Harper]

[-- Attachment #1: Type: text/plain, Size: 2038 bytes --]

will 2.6.8.1 pick up the config from 2.6.7?



From: Ian Pratt
Sent: Sat 28/08/2004 8:38 AM
To: xen-devel@lists.sourceforge.net
Cc: Ian.Pratt@cl.cam.ac.uk
Subject: [Xen-devel] Xen 2.0 beta


Folks,

There have been some pretty significant checkins to the unstable
tree today:

First off, we've made it so that by default 'make world' builds a
Linux 2.6.8.1 kernel rather than 2.4.27. I know a lot of people
still use 2.4, but I think its important the 2.0 release is
"2.6 native".

Secondly, a number of important MMU optimisations have just been
enabled in the 2.6.8.1 tree. Performance should now be as good as
2.4. We've done a fair bit of testing, but should you have
problems, it would be useful to know if you can repeat with
CONFIG_WRITABLE_PAGETABLES disabled in the linux kernel.

I've created a new xen-2.0.bk tree on xen.bkbits.net which is
where the source for the 2.0 release will live. For the next few
weeks we expect this tree to simply be a time-lagged version of
the xeno-unstable.bk tree: bug fixes will get road tested in the
unstable tree then pushed to 2.0 if no problems are reported.

To clone the proto 2.0 tree use "bk clone bk://xen.bkbits.net/xen-2.0.bk"

NB: We've named the repository 'xen' rather than 'xeno' as the
latter name no longer makes sense now that the XenoServer project
now lives in a different repository. 

We'd be grateful if as many people as possible could test this
beta over the next few days, so we can shake out any bugs before
the official 2.0 release, hopefully next week or so.

Thanks,
Ian







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[-- Attachment #2: Type: text/html, Size: 2367 bytes --]

Re: Xen 2.0 beta

[Ian Pratt]

> will 2.6.8.1 pick up the config from 2.6.7?

No. To retain your previous config:

cd ./boot/install
mv config-2.6.7-xen0 config-2.6.8.1-xen0
mv config-2.6.7-xenU config-2.6.8.1-xenU

cd ../..
make world




Ian


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RE: Xen 2.0 beta

[James Harper]

[-- Attachment #1: Type: text/plain, Size: 2133 bytes --]

'make world' gets as far as 'make docs' and then hangs on 'latex interface >/dev/null', waiting for standard input.

Any ideas?

James



From: Ian Pratt
Sent: Sat 28/08/2004 8:38 AM
To: xen-devel@lists.sourceforge.net
Cc: Ian.Pratt@cl.cam.ac.uk
Subject: [Xen-devel] Xen 2.0 beta


Folks,

There have been some pretty significant checkins to the unstable
tree today:

First off, we've made it so that by default 'make world' builds a
Linux 2.6.8.1 kernel rather than 2.4.27. I know a lot of people
still use 2.4, but I think its important the 2.0 release is
"2.6 native".

Secondly, a number of important MMU optimisations have just been
enabled in the 2.6.8.1 tree. Performance should now be as good as
2.4. We've done a fair bit of testing, but should you have
problems, it would be useful to know if you can repeat with
CONFIG_WRITABLE_PAGETABLES disabled in the linux kernel.

I've created a new xen-2.0.bk tree on xen.bkbits.net which is
where the source for the 2.0 release will live. For the next few
weeks we expect this tree to simply be a time-lagged version of
the xeno-unstable.bk tree: bug fixes will get road tested in the
unstable tree then pushed to 2.0 if no problems are reported.

To clone the proto 2.0 tree use "bk clone bk://xen.bkbits.net/xen-2.0.bk"

NB: We've named the repository 'xen' rather than 'xeno' as the
latter name no longer makes sense now that the XenoServer project
now lives in a different repository. 

We'd be grateful if as many people as possible could test this
beta over the next few days, so we can shake out any bugs before
the official 2.0 release, hopefully next week or so.

Thanks,
Ian







-------------------------------------------------------
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[-- Attachment #2: Type: text/html, Size: 2677 bytes --]

Re: Xen 2.0 beta

[Christian Limpach]

On Sat, Aug 28, 2004 at 07:12:03PM +1000, James Harper wrote:
> 'make world' gets as far as 'make docs' and then hangs on 'latex interface >/dev/null', waiting for standard input.

What happens if you run ``latex interface'' in the docs directory?
Does it print any error message then?

    christian



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RE: Xen 2.0 beta

[James Harper]

[-- Attachment #1: Type: text/plain, Size: 715 bytes --]

my bad. I was missing at least the file a4.sty. Installing tetex-extra (debian package) fixed it up. I now remember having to do that on the other server. I wonder if the build operation could detect this in a more useful way?

James



From: Christian Limpach
Sent: Sat 28/08/2004 7:28 PM
To: James Harper
Cc: Ian Pratt; xen-devel@lists.sourceforge.net
Subject: Re: [Xen-devel] Xen 2.0 beta


On Sat, Aug 28, 2004 at 07:12:03PM +1000, James Harper wrote:
> 'make world' gets as far as 'make docs' and then hangs on 'latex interface >/dev/null', waiting for standard input.

What happens if you run ``latex interface'' in the docs directory?
Does it print any error message then?

    christian

[-- Attachment #2: Type: text/html, Size: 1150 bytes --]

RE: Xen 2.0 beta

[James Harper]

[-- Attachment #1: Type: text/plain, Size: 2480 bytes --]

I get screenfulls of this message when trying to boot xenU:

Timer ISR: Time went backwards: -472618592
Timer ISR: Time went backwards: -471563592
Timer ISR: Time went backwards: -470508592
Timer ISR: Time went backwards: -469454592
Timer ISR: Time went backwards: -468375592
Timer ISR: Time went backwards: -467313592
Timer ISR: Time went backwards: -466252592

xen0 works fine.

it also doesn't appear to boot but with all those messages it's hard to tell why.

James




From: Ian Pratt
Sent: Sat 28/08/2004 8:38 AM
To: xen-devel@lists.sourceforge.net
Cc: Ian.Pratt@cl.cam.ac.uk
Subject: [Xen-devel] Xen 2.0 beta


Folks,

There have been some pretty significant checkins to the unstable
tree today:

First off, we've made it so that by default 'make world' builds a
Linux 2.6.8.1 kernel rather than 2.4.27. I know a lot of people
still use 2.4, but I think its important the 2.0 release is
"2.6 native".

Secondly, a number of important MMU optimisations have just been
enabled in the 2.6.8.1 tree. Performance should now be as good as
2.4. We've done a fair bit of testing, but should you have
problems, it would be useful to know if you can repeat with
CONFIG_WRITABLE_PAGETABLES disabled in the linux kernel.

I've created a new xen-2.0.bk tree on xen.bkbits.net which is
where the source for the 2.0 release will live. For the next few
weeks we expect this tree to simply be a time-lagged version of
the xeno-unstable.bk tree: bug fixes will get road tested in the
unstable tree then pushed to 2.0 if no problems are reported.

To clone the proto 2.0 tree use "bk clone bk://xen.bkbits.net/xen-2.0.bk"

NB: We've named the repository 'xen' rather than 'xeno' as the
latter name no longer makes sense now that the XenoServer project
now lives in a different repository. 

We'd be grateful if as many people as possible could test this
beta over the next few days, so we can shake out any bugs before
the official 2.0 release, hopefully next week or so.

Thanks,
Ian







-------------------------------------------------------
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Get your free copy of BEA WebLogic Workshop 8.1 today.
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[-- Attachment #2: Type: text/html, Size: 3301 bytes --]

Re: Xen 2.0 beta

[Mike Brady]

I have the same issue here. I'm just recompiling everything from scatch just 
to make sure I haven't got some old stuff in there somewhere.

On Sun, 29 Aug 2004 13:23, James Harper wrote:
> I get screenfulls of this message when trying to boot xenU:
>
> Timer ISR: Time went backwards: -472618592
> Timer ISR: Time went backwards: -471563592
> Timer ISR: Time went backwards: -470508592
> Timer ISR: Time went backwards: -469454592
> Timer ISR: Time went backwards: -468375592
> Timer ISR: Time went backwards: -467313592
> Timer ISR: Time went backwards: -466252592
>
> xen0 works fine.
>
> it also doesn't appear to boot but with all those messages it's hard to
> tell why.
>
> James
>
>
>
>
> From: Ian Pratt
> Sent: Sat 28/08/2004 8:38 AM
> To: xen-devel@lists.sourceforge.net
> Cc: Ian.Pratt@cl.cam.ac.uk
> Subject: [Xen-devel] Xen 2.0 beta
>
>
> Folks,
>
> There have been some pretty significant checkins to the unstable
> tree today:
>
> First off, we've made it so that by default 'make world' builds a
> Linux 2.6.8.1 kernel rather than 2.4.27. I know a lot of people
> still use 2.4, but I think its important the 2.0 release is
> "2.6 native".
>
> Secondly, a number of important MMU optimisations have just been
> enabled in the 2.6.8.1 tree. Performance should now be as good as
> 2.4. We've done a fair bit of testing, but should you have
> problems, it would be useful to know if you can repeat with
> CONFIG_WRITABLE_PAGETABLES disabled in the linux kernel.
>
> I've created a new xen-2.0.bk tree on xen.bkbits.net which is
> where the source for the 2.0 release will live. For the next few
> weeks we expect this tree to simply be a time-lagged version of
> the xeno-unstable.bk tree: bug fixes will get road tested in the
> unstable tree then pushed to 2.0 if no problems are reported.
>
> To clone the proto 2.0 tree use "bk clone bk://xen.bkbits.net/xen-2.0.bk"
>
> NB: We've named the repository 'xen' rather than 'xeno' as the
> latter name no longer makes sense now that the XenoServer project
> now lives in a different repository.
>
> We'd be grateful if as many people as possible could test this
> beta over the next few days, so we can shake out any bugs before
> the official 2.0 release, hopefully next week or so.
>
> Thanks,
> Ian
>
>
>
>
>
>
>
> -------------------------------------------------------
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> FREE Java Enterprise J2EE developer tools!
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> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/xen-devel


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Re: Xen 2.0 beta

[Keir Fraser]

If you didn't rebuild xenU then you will probably see time not
working. I slipped in a cleanup to the time interface before the 2.0
release :-)

 -- Keir

> I have the same issue here. I'm just recompiling everything from scatch just 
> to make sure I haven't got some old stuff in there somewhere.
> 
> On Sun, 29 Aug 2004 13:23, James Harper wrote:
> > I get screenfulls of this message when trying to boot xenU:
> >
> > Timer ISR: Time went backwards: -472618592
> > Timer ISR: Time went backwards: -471563592
> > Timer ISR: Time went backwards: -470508592
> > Timer ISR: Time went backwards: -469454592
> > Timer ISR: Time went backwards: -468375592
> > Timer ISR: Time went backwards: -467313592
> > Timer ISR: Time went backwards: -466252592
> >
> > xen0 works fine.
> >
> > it also doesn't appear to boot but with all those messages it's hard to
> > tell why.
> >
> > James
> >
> >
> >
> >
> > From: Ian Pratt
> > Sent: Sat 28/08/2004 8:38 AM
> > To: xen-devel@lists.sourceforge.net
> > Cc: Ian.Pratt@cl.cam.ac.uk
> > Subject: [Xen-devel] Xen 2.0 beta
> >
> >
> > Folks,
> >
> > There have been some pretty significant checkins to the unstable
> > tree today:
> >
> > First off, we've made it so that by default 'make world' builds a
> > Linux 2.6.8.1 kernel rather than 2.4.27. I know a lot of people
> > still use 2.4, but I think its important the 2.0 release is
> > "2.6 native".
> >
> > Secondly, a number of important MMU optimisations have just been
> > enabled in the 2.6.8.1 tree. Performance should now be as good as
> > 2.4. We've done a fair bit of testing, but should you have
> > problems, it would be useful to know if you can repeat with
> > CONFIG_WRITABLE_PAGETABLES disabled in the linux kernel.
> >
> > I've created a new xen-2.0.bk tree on xen.bkbits.net which is
> > where the source for the 2.0 release will live. For the next few
> > weeks we expect this tree to simply be a time-lagged version of
> > the xeno-unstable.bk tree: bug fixes will get road tested in the
> > unstable tree then pushed to 2.0 if no problems are reported.
> >
> > To clone the proto 2.0 tree use "bk clone bk://xen.bkbits.net/xen-2.0.bk"
> >
> > NB: We've named the repository 'xen' rather than 'xeno' as the
> > latter name no longer makes sense now that the XenoServer project
> > now lives in a different repository.
> >
> > We'd be grateful if as many people as possible could test this
> > beta over the next few days, so we can shake out any bugs before
> > the official 2.0 release, hopefully next week or so.
> >
> > Thanks,
> > Ian
> >
> >
> >
> >
> >
> >
> >
> > -------------------------------------------------------
> > This SF.Net email is sponsored by BEA Weblogic Workshop
> > FREE Java Enterprise J2EE developer tools!
> > Get your free copy of BEA WebLogic Workshop 8.1 today.
> > http://ads.osdn.com/?ad_id=5047&alloc_id=10808&op=click
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/xen-devel
> 
> 
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Re: Xen 2.0 beta

[Mark Williamson]

Are you guys who see time going backwards running 2.6 in the XenU domain?

Cheers,
Mark



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RE: Xen 2.0 beta

[James Harper]

[-- Attachment #1: Type: text/plain, Size: 744 bytes --]

i have not noticed before



From: Mark Williamson
Sent: Sun 29/08/2004 11:52 AM
To: Mike Brady
Cc: xen-devel@lists.sourceforge.net; Mark.Williamson@cl.cam.ac.uk
Subject: Re: [Xen-devel] Xen 2.0 beta


Are you guys who see time going backwards running 2.6 in the XenU domain?

Cheers,
Mark



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Re: Xen 2.0 beta

[Mike Brady]

No.   I have seen it with 2.4.26 and 2.4.27.  I have yet to try running a 2.6 
dom0.

On Sun, 29 Aug 2004 13:52, Mark Williamson wrote:
> Are you guys who see time going backwards running 2.6 in the XenU domain?
>
> Cheers,
> Mark


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RE: Xen 2.0 beta

[James Harper]

[-- Attachment #1: Type: text/plain, Size: 2774 bytes --]

i think i'm having a stupid day. I was still using the 2.6.7 kernel in by xenU config. sorry for the noise.

James



From: James Harper
Sent: Sun 29/08/2004 11:23 AM
To: Ian Pratt; xen-devel@lists.sourceforge.net
Cc: Ian.Pratt@cl.cam.ac.uk
Subject: RE: [Xen-devel] Xen 2.0 beta


I get screenfulls of this message when trying to boot xenU:

Timer ISR: Time went backwards: -472618592
Timer ISR: Time went backwards: -471563592
Timer ISR: Time went backwards: -470508592
Timer ISR: Time went backwards: -469454592
Timer ISR: Time went backwards: -468375592
Timer ISR: Time went backwards: -467313592
Timer ISR: Time went backwards: -466252592

xen0 works fine.

it also doesn't appear to boot but with all those messages it's hard to tell why.

James




From: Ian Pratt
Sent: Sat 28/08/2004 8:38 AM
To: xen-devel@lists.sourceforge.net
Cc: Ian.Pratt@cl.cam.ac.uk
Subject: [Xen-devel] Xen 2.0 beta


Folks,

There have been some pretty significant checkins to the unstable
tree today:

First off, we've made it so that by default 'make world' builds a
Linux 2.6.8.1 kernel rather than 2.4.27. I know a lot of people
still use 2.4, but I think its important the 2.0 release is
"2.6 native".

Secondly, a number of important MMU optimisations have just been
enabled in the 2.6.8.1 tree. Performance should now be as good as
2.4. We've done a fair bit of testing, but should you have
problems, it would be useful to know if you can repeat with
CONFIG_WRITABLE_PAGETABLES disabled in the linux kernel.

I've created a new xen-2.0.bk tree on xen.bkbits.net which is
where the source for the 2.0 release will live. For the next few
weeks we expect this tree to simply be a time-lagged version of
the xeno-unstable.bk tree: bug fixes will get road tested in the
unstable tree then pushed to 2.0 if no problems are reported.

To clone the proto 2.0 tree use "bk clone bk://xen.bkbits.net/xen-2.0.bk"

NB: We've named the repository 'xen' rather than 'xeno' as the
latter name no longer makes sense now that the XenoServer project
now lives in a different repository. 

We'd be grateful if as many people as possible could test this
beta over the next few days, so we can shake out any bugs before
the official 2.0 release, hopefully next week or so.

Thanks,
Ian







-------------------------------------------------------
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[-- Attachment #2: Type: text/html, Size: 3943 bytes --]

Re: Xen 2.0 beta

[Dick Davies]

* Ian Pratt <Ian.Pratt@cl.cam.ac.uk> [0840 23:40]:

> To clone the proto 2.0 tree use "bk clone bk://xen.bkbits.net/xen-2.0.bk"

> NB: We've named the repository 'xen' rather than 'xeno' as the
> latter name no longer makes sense now that the XenoServer project
> now lives in a different repository. 

Can you update the user guide, it still refers to xeno:

http://www.cl.cam.ac.uk/Research/SRG/netos/xen/readmes/user/user.html#SECTION02241000000000000000


--------8<-----------------

Using Bitkeeper

The public master BK repository for the 2.0 release lives at:
bk://xen.bkbits.net/xen-2.0.bk. You can use Bitkeeper to download it and keep it updated with the latest features and fixes.

Change to the directory in which you want to put the source code, then run:

# bk clone bk://xen.bkbits.net/xeno-2.0.bk

Under your current directory, a new directory named `xeno-2.0.bk' has been created, which contains all the source code for the Xen hypervisor and the Xen tools. The directory also contains `sparse' Linux source trees, containing only the files that differ between XenLinux and standard Linux.

Once you have cloned the repository, you can update to the newest changes to the repository by running:

# cd xeno-2.0.bk # to change into the local repository
# bk pull        # to update the repository

--------8<-----------------
 
-- 
The sooner you make your first 5000 mistakes, the sooner you will be
able to correct them.
		-- Nicolaides
Rasputin :: Jack of All Trades - Master of Nuns


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Re: Xen 2.0 beta

[Mark Williamson]

Thanks - I've spotted this already and am rolling it into my next set of 
updates.

Cheers,
Mark



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Re: Xen 2.0 beta

[Steven Hand]

> Can you update the user guide, it still refers to xeno:
> 
> http://www.cl.cam.ac.uk/Research/SRG/netos/xen/readmes/user/user.html#SECTION02241000000000000000
> 
> 
> --------8<-----------------
> 
> Using Bitkeeper
> 
> The public master BK repository for the 2.0 release lives at:
> bk://xen.bkbits.net/xen-2.0.bk. You can use Bitkeeper to download it and keep it updated with the latest features and fixes.
> 
> Change to the directory in which you want to put the source code, then run:
> 
> # bk clone bk://xen.bkbits.net/xeno-2.0.bk
> 
> Under your current directory, a new directory named `xeno-2.0.bk' has been created, which contains all the source code for the Xen hypervisor and the Xen tools. The directory also contains `sparse' Linux source trees, containing only the files that differ between XenLinux and standard Linux.
> 
> Once you have cloned the repository, you can update to the newest changes to the repository by running:
> 
> # cd xeno-2.0.bk # to change into the local repository
> # bk pull        # to update the repository

Fixed in repo - docmentation will update automatically overnight. 

cheers,

S.


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Re: Xen 2.0 beta

[Rob Gardner]

I just picked up the latest xen-2.0.bk bits, built and installed them on
a machine that's been running an older version of xen and linux for a
while. Now nothing works. Never mind xen, linux barely works. Every
other command core dumps. This must be something simple... probably
related to changing from 2.4 to 2.6 kernel?? 

Rob





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Re: Xen 2.0 beta

[Steven Hand]

>I just picked up the latest xen-2.0.bk bits, built and installed them on
>a machine that's been running an older version of xen and linux for a
>while. Now nothing works. Never mind xen, linux barely works. Every
>other command core dumps. This must be something simple... probably
>related to changing from 2.4 to 2.6 kernel?? 

What filesystem (distro) are you using? There are some issues with 
TLS in more recent versions of FC (e.g FC3 test series) -- try booting
with 'nosegfixup' or move /lib/tls/ out of the way. 

Can you pin down a particular point where this behaviour starts to 
be exhibited (i.e. play with bk cset -x and rollback csets)? 

Any serial debug output you can give us? 


cheers,

S.




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Re: Xen 2.0 beta

[Kip Macy]

You might need to upgrade your distribution, I'm running FC-1 and
unstable 1.1303 and I'm getting complaints of mount being out of date
when running 2.6.8.1.

>From my limited experiences the only thing that is *completely* broken
is pdb.


				-Kip






On Tue, 14 Sep 2004, Rob Gardner wrote:

> I just picked up the latest xen-2.0.bk bits, built and installed them on
> a machine that's been running an older version of xen and linux for a
> while. Now nothing works. Never mind xen, linux barely works. Every
> other command core dumps. This must be something simple... probably
> related to changing from 2.4 to 2.6 kernel??
>
> Rob
>
>
>
>
>
> -------------------------------------------------------
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> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/xen-devel
>


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Re: Xen 2.0 beta

[Rob Gardner]

On Tue, 2004-09-14 at 14:35, Steven Hand wrote:
> >I just picked up the latest xen-2.0.bk bits, built and installed them on
> >a machine that's been running an older version of xen and linux for a
> >while. Now nothing works. Never mind xen, linux barely works. Every
> >other command core dumps. This must be something simple... probably
> >related to changing from 2.4 to 2.6 kernel?? 
> 
> What filesystem (distro) are you using? There are some issues with 
> TLS in more recent versions of FC (e.g FC3 test series) -- try booting
> with 'nosegfixup' or move /lib/tls/ out of the way. 


I moved /lib/tls, and everything works now, thanks!

I guess it was one of those "issues". 

(BTW, running RH9.0)


Rob




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Re: Xen 2.0 beta

[Keir Fraser]

> I moved /lib/tls, and everything works now, thanks!
> 
> I guess it was one of those "issues". 
> 
> (BTW, running RH9.0)

That's odd -- Xen should have emulated the instructions that we do not
support, and Linux should have printed a start-of-day banner to
explain the situation and request that /lib/tls be moved out of the
way...

Certainly I tested that code on RH9 before and it worked fine.

 -- Keir


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Re: Xen 2.0 beta

[Steven Hand]

>On Tue, 2004-09-14 at 14:35, Steven Hand wrote:
>> >I just picked up the latest xen-2.0.bk bits, built and installed them on
>> >a machine that's been running an older version of xen and linux for a
>> >while. Now nothing works. Never mind xen, linux barely works. Every
>> >other command core dumps. This must be something simple... probably
>> >related to changing from 2.4 to 2.6 kernel?? 
>> 
>> What filesystem (distro) are you using? There are some issues with 
>> TLS in more recent versions of FC (e.g FC3 test series) -- try booting
>> with 'nosegfixup' or move /lib/tls/ out of the way. 
>
>
>I moved /lib/tls, and everything works now, thanks!
>
>I guess it was one of those "issues". 
>
>(BTW, running RH9.0)

Hmm interesting... we've not had problems with rh9 before (or certainly
not problems of this severity). For interest, can you let us know the 
versions of the libraries you have in /lib/tls (e.g. libc-2.3.x, etc)? 

cheers,

S.


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Re: Xen 2.0 beta

[Rob Gardner]

On Tue, 2004-09-14 at 15:57, Keir Fraser wrote:
> > I moved /lib/tls, and everything works now, thanks!
> > 
> > I guess it was one of those "issues". 
> > 
> > (BTW, running RH9.0)
> 
> That's odd -- Xen should have emulated the instructions that we do not
> support, and Linux should have printed a start-of-day banner to
> explain the situation and request that /lib/tls be moved out of the
> way...
> 
> Certainly I tested that code on RH9 before and it worked fine.


Linux did print a banner about /lib/tls, but it didn't say "if stuff
doesn't work move /lib/tls". It said "to obtain full performance, move
/lib/tls". So I didn't immediately think this was the culprit.

Rob




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Re: Xen 2.0 beta

[Rob Gardner]

On Tue, 2004-09-14 at 16:00, Steven Hand wrote:

> Hmm interesting... we've not had problems with rh9 before (or certainly
> not problems of this severity). For interest, can you let us know the 
> versions of the libraries you have in /lib/tls (e.g. libc-2.3.x, etc)? 


$ ls /lib/tls*
libc-2.3.2.so  libm-2.3.2.so  libpthread-0.29.so  libthread_db-1.0.so
libc.so.6      libm.so.6      libpthread.so.0     libthread_db.so.1



Rob




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Re: Xen 2.0 beta

[Keir Fraser]

> Linux did print a banner about /lib/tls, but it didn't say "if stuff
> doesn't work move /lib/tls". It said "to obtain full performance, move
> /lib/tls". So I didn't immediately think this was the culprit.

I shall fix the banner. Easier than fixing the incomplete
emulation. ;-) The only purpose of that is really to get you to a boot
prompt to execute the mv command anyway.

 -- Keir


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