XEN 4.1.3 blktap2 patches.

XEN 4.1.3 blktap2 patches.

[Dr. Greg Wettstein]

Good morning, hope the day is going well for everyone.

The patches to fix the blktap2 issues which result in orphaned
tapdisk2 processes and the transitory deadlock on guest shutdown
didn't make it into the 4.1.3 release.  Updated patches to address
these problems are available at the following location:

	ftp://ftp.enjellic.com/pub/xen/xen-4.1.3.blktap1.patch
	ftp://ftp.enjellic.com/pub/xen/xen-4.1.3.blktap2.patch

The patches are designed to be applied in order and have been verified
to work against the 4.1.3 release.

Best wishes for a productive week.

As always,
Dr. G.W. Wettstein, Ph.D.   Enjellic Systems Development, LLC.
4206 N. 19th Ave.           Specializing in information infra-structure
Fargo, ND  58102            development.
PH: 701-281-1686
FAX: 701-281-3949           EMAIL: greg@enjellic.com
------------------------------------------------------------------------------
"There are two things that are infinite; Human stupidity and the
 universe.  And I'm not sure about the universe."
                                -- Albert Einstein

Re: XEN 4.1.3 blktap2 patches.

[Pasi Kärkkäinen]

On Tue, Aug 28, 2012 at 07:25:01AM -0500, Dr. Greg Wettstein wrote:
> Good morning, hope the day is going well for everyone.
> 

Hello,

> The patches to fix the blktap2 issues which result in orphaned
> tapdisk2 processes and the transitory deadlock on guest shutdown
> didn't make it into the 4.1.3 release.  Updated patches to address
> these problems are available at the following location:
> 
> 	ftp://ftp.enjellic.com/pub/xen/xen-4.1.3.blktap1.patch
> 	ftp://ftp.enjellic.com/pub/xen/xen-4.1.3.blktap2.patch
> 
> The patches are designed to be applied in order and have been verified
> to work against the 4.1.3 release.
> 

If these patches are already in xen-unstable then they definitely should be applied
to xen-4.1-testing.hg for Xen 4.1.4. 

Thanks,

-- Pasi

> Best wishes for a productive week.
> 
> As always,
> Dr. G.W. Wettstein, Ph.D.   Enjellic Systems Development, LLC.
> 4206 N. 19th Ave.           Specializing in information infra-structure
> Fargo, ND  58102            development.
> PH: 701-281-1686
> FAX: 701-281-3949           EMAIL: greg@enjellic.com
> ------------------------------------------------------------------------------
> "There are two things that are infinite; Human stupidity and the
>  universe.  And I'm not sure about the universe."
>                                 -- Albert Einstein
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel

Re: XEN 4.1.3 blktap2 patches.

[Ian Campbell]

On Tue, 2012-08-28 at 13:25 +0100, Dr. Greg Wettstein wrote:
> Good morning, hope the day is going well for everyone.
> 
> The patches to fix the blktap2 issues which result in orphaned
> tapdisk2 processes and the transitory deadlock on guest shutdown
> didn't make it into the 4.1.3 release.  Updated patches to address
> these problems are available at the following location:
> 
> 	ftp://ftp.enjellic.com/pub/xen/xen-4.1.3.blktap1.patch
> 	ftp://ftp.enjellic.com/pub/xen/xen-4.1.3.blktap2.patch
> 
> The patches are designed to be applied in order and have been verified
> to work against the 4.1.3 release.

Please can you post these patches as emails with a changelog and a
signed-off-by. You should also CC Ian Jackson since he is the one who
does the tools backports.

The changelog should be clear about the backport status. IIRC one of
these is a backport from unstable (so the changelog should say of which
commit and preserve the original S-o-b) and the other is a
reimplementation since too much has changed in unstable so there is no
plausible backport (and the changelog should mention this).

Ideally these mails would be threaded with subjects "[PATCH 1/2] ..."
and "[PATCH 2/2] ..." so that it is obvious that there is a sequence to
them. A tool such as hg email will do this for you.
http://wiki.xen.org/wiki/Submitting_Xen_Patches has some hints on how to
use it.

If nothing has changed since the previous posting it may be sufficient
to reply to that previous postings with a "ping" message and CC Ian
there.

Ian.

Re: XEN 4.1.3 blktap2 patches.

[Pasi Kärkkäinen]

Hello,

On Wed, Aug 29, 2012 at 08:54:28AM +0100, Ian Campbell wrote:
> On Tue, 2012-08-28 at 13:25 +0100, Dr. Greg Wettstein wrote:
> > Good morning, hope the day is going well for everyone.
> > 
> > The patches to fix the blktap2 issues which result in orphaned
> > tapdisk2 processes and the transitory deadlock on guest shutdown
> > didn't make it into the 4.1.3 release.  Updated patches to address
> > these problems are available at the following location:
> > 
> > 	ftp://ftp.enjellic.com/pub/xen/xen-4.1.3.blktap1.patch
> > 	ftp://ftp.enjellic.com/pub/xen/xen-4.1.3.blktap2.patch
> > 
> > The patches are designed to be applied in order and have been verified
> > to work against the 4.1.3 release.
> 
> Please can you post these patches as emails with a changelog and a
> signed-off-by. You should also CC Ian Jackson since he is the one who
> does the tools backports.
> 

Added Ian Jackson to CC list..


> The changelog should be clear about the backport status. IIRC one of
> these is a backport from unstable (so the changelog should say of which
> commit and preserve the original S-o-b) and the other is a
> reimplementation since too much has changed in unstable so there is no
> plausible backport (and the changelog should mention this).
> 
> Ideally these mails would be threaded with subjects "[PATCH 1/2] ..."
> and "[PATCH 2/2] ..." so that it is obvious that there is a sequence to
> them. A tool such as hg email will do this for you.
> http://wiki.xen.org/wiki/Submitting_Xen_Patches has some hints on how to
> use it.
> 
> If nothing has changed since the previous posting it may be sufficient
> to reply to that previous postings with a "ping" message and CC Ian
> there.
> 

So is repost needed here? 

-- Pasi

Re: XEN 4.1.3 blktap2 patches.

[Pasi Kärkkäinen]

On Thu, Sep 06, 2012 at 04:18:34PM +0300, Pasi Kärkkäinen wrote:
> Hello,
> 
> On Wed, Aug 29, 2012 at 08:54:28AM +0100, Ian Campbell wrote:
> > On Tue, 2012-08-28 at 13:25 +0100, Dr. Greg Wettstein wrote:
> > > Good morning, hope the day is going well for everyone.
> > > 
> > > The patches to fix the blktap2 issues which result in orphaned
> > > tapdisk2 processes and the transitory deadlock on guest shutdown
> > > didn't make it into the 4.1.3 release.  Updated patches to address
> > > these problems are available at the following location:
> > > 
> > > 	ftp://ftp.enjellic.com/pub/xen/xen-4.1.3.blktap1.patch
> > > 	ftp://ftp.enjellic.com/pub/xen/xen-4.1.3.blktap2.patch
> > > 
> > > The patches are designed to be applied in order and have been verified
> > > to work against the 4.1.3 release.
> > 
> > Please can you post these patches as emails with a changelog and a
> > signed-off-by. You should also CC Ian Jackson since he is the one who
> > does the tools backports.
> > 
> 
> Added Ian Jackson to CC list..
> 

Ping? 

Do we need a repost here or can these go into 4.1-testing.hg ? 
I see xen-4.1-testing.hg has received other backports now. 

-- Pasi

> 
> > The changelog should be clear about the backport status. IIRC one of
> > these is a backport from unstable (so the changelog should say of which
> > commit and preserve the original S-o-b) and the other is a
> > reimplementation since too much has changed in unstable so there is no
> > plausible backport (and the changelog should mention this).
> > 
> > Ideally these mails would be threaded with subjects "[PATCH 1/2] ..."
> > and "[PATCH 2/2] ..." so that it is obvious that there is a sequence to
> > them. A tool such as hg email will do this for you.
> > http://wiki.xen.org/wiki/Submitting_Xen_Patches has some hints on how to
> > use it.
> > 
> > If nothing has changed since the previous posting it may be sufficient
> > to reply to that previous postings with a "ping" message and CC Ian
> > there.
> > 
> 
> So is repost needed here? 
> 
> -- Pasi
> 
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel

Re: XEN 4.1.3 blktap2 patches.

[Pasi Kärkkäinen]

On Wed, Aug 29, 2012 at 08:54:28AM +0100, Ian Campbell wrote:
> On Tue, 2012-08-28 at 13:25 +0100, Dr. Greg Wettstein wrote:
> > Good morning, hope the day is going well for everyone.
> > 
> > The patches to fix the blktap2 issues which result in orphaned
> > tapdisk2 processes and the transitory deadlock on guest shutdown
> > didn't make it into the 4.1.3 release.  Updated patches to address
> > these problems are available at the following location:
> > 
> > 	ftp://ftp.enjellic.com/pub/xen/xen-4.1.3.blktap1.patch
> > 	ftp://ftp.enjellic.com/pub/xen/xen-4.1.3.blktap2.patch
> > 
> > The patches are designed to be applied in order and have been verified
> > to work against the 4.1.3 release.
> 
> Please can you post these patches as emails with a changelog and a
> signed-off-by. You should also CC Ian Jackson since he is the one who
> does the tools backports.
>

Hello again,

Dr. Greg: Can you please re-post the patches as emails with Signed-off-by lines included,
as suggested below in Ian's reply.. ? 

http://wiki.xen.org/wiki/Submitting_Xen_Patches

Thanks!

-- Pasi
 
> The changelog should be clear about the backport status. IIRC one of
> these is a backport from unstable (so the changelog should say of which
> commit and preserve the original S-o-b) and the other is a
> reimplementation since too much has changed in unstable so there is no
> plausible backport (and the changelog should mention this).
> 
> Ideally these mails would be threaded with subjects "[PATCH 1/2] ..."
> and "[PATCH 2/2] ..." so that it is obvious that there is a sequence to
> them. A tool such as hg email will do this for you.
> http://wiki.xen.org/wiki/Submitting_Xen_Patches has some hints on how to
> use it.
> 
> If nothing has changed since the previous posting it may be sufficient
> to reply to that previous postings with a "ping" message and CC Ian
> there.
> 
> Ian.
> 

Re: XEN 4.1.3 blktap2 patches.

[Pasi Kärkkäinen]

On Tue, Sep 25, 2012 at 02:35:10PM +0300, Pasi Kärkkäinen wrote:
> On Wed, Aug 29, 2012 at 08:54:28AM +0100, Ian Campbell wrote:
> > On Tue, 2012-08-28 at 13:25 +0100, Dr. Greg Wettstein wrote:
> > > Good morning, hope the day is going well for everyone.
> > > 
> > > The patches to fix the blktap2 issues which result in orphaned
> > > tapdisk2 processes and the transitory deadlock on guest shutdown
> > > didn't make it into the 4.1.3 release.  Updated patches to address
> > > these problems are available at the following location:
> > > 
> > > 	ftp://ftp.enjellic.com/pub/xen/xen-4.1.3.blktap1.patch
> > > 	ftp://ftp.enjellic.com/pub/xen/xen-4.1.3.blktap2.patch
> > > 
> > > The patches are designed to be applied in order and have been verified
> > > to work against the 4.1.3 release.
> > 
> > Please can you post these patches as emails with a changelog and a
> > signed-off-by. You should also CC Ian Jackson since he is the one who
> > does the tools backports.
> >
> 
> Hello again,
> 
> Dr. Greg: Can you please re-post the patches as emails with Signed-off-by lines included,
> as suggested below in Ian's reply.. ? 
> 
> http://wiki.xen.org/wiki/Submitting_Xen_Patches
> 

Dr. Greg: RC1 for Xen 4.1.4 is being prepared atm, so hopefully you can re-submit 
these blktap2 bugfix patches for inclusion! 

Thanks,

-- Pasi


>  
> > The changelog should be clear about the backport status. IIRC one of
> > these is a backport from unstable (so the changelog should say of which
> > commit and preserve the original S-o-b) and the other is a
> > reimplementation since too much has changed in unstable so there is no
> > plausible backport (and the changelog should mention this).
> > 
> > Ideally these mails would be threaded with subjects "[PATCH 1/2] ..."
> > and "[PATCH 2/2] ..." so that it is obvious that there is a sequence to
> > them. A tool such as hg email will do this for you.
> > http://wiki.xen.org/wiki/Submitting_Xen_Patches has some hints on how to
> > use it.
> > 
> > If nothing has changed since the previous posting it may be sufficient
> > to reply to that previous postings with a "ping" message and CC Ian
> > there.
> > 
> > Ian.
> > 
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel

Re: XEN 4.1.3 blktap2 patches.

[Dr. Greg Wettstein]

On Aug 29,  8:54am, Ian Campbell wrote:
} Subject: Re: [Xen-devel] XEN 4.1.3 blktap2 patches.

Good morning, hope the weekend is going well for everyone.

> On Tue, 2012-08-28 at 13:25 +0100, Dr. Greg Wettstein wrote:
> > Good morning, hope the day is going well for everyone.
> > 
> > The patches to fix the blktap2 issues which result in orphaned
> > tapdisk2 processes and the transitory deadlock on guest shutdown
> > didn't make it into the 4.1.3 release.  Updated patches to address
> > these problems are available at the following location:
> > 
> > 	ftp://ftp.enjellic.com/pub/xen/xen-4.1.3.blktap1.patch
> > 	ftp://ftp.enjellic.com/pub/xen/xen-4.1.3.blktap2.patch
> > 
> > The patches are designed to be applied in order and have been verified
> > to work against the 4.1.3 release.

> Please can you post these patches as emails with a changelog and a
> signed-off-by. You should also CC Ian Jackson since he is the one who
> does the tools backports.

.. [ material elided ] ...

> If nothing has changed since the previous posting it may be sufficient
> to reply to that previous postings with a "ping" message and CC Ian
> there.

Thanks for the comments and suggestions.

My target audience was primarily focused on other groups, like ours,
which are rolling their own XEN implementations and who needed blktap2
functionality.  I know I've spent tons of time trying to ferret out
the patches to get a solid implementation for our needs.  So I wanted
to get something which would get indexed so, hopefully, people would
find this when they need it.

Based on the number of downloads I see for the kernel patches and the
toolstack fixes there seems to be a sizable audience.... :-)

I shipped off the patches just before 4.1.3 was released and copied
Ian and Keir on them but I haven't seen them show up in the
xen-4.1-testing.hg Mercurial tree.  Ian/Keir do you want another round
of the patches?

> Ian.

Best wishes for a productive week.

Greg

}-- End of excerpt from Ian Campbell

As always,
Dr. G.W. Wettstein, Ph.D.   Enjellic Systems Development, LLC.
4206 N. 19th Ave.           Specializing in information infra-structure
Fargo, ND  58102            development.
PH: 701-281-1686
FAX: 701-281-3949           EMAIL: greg@enjellic.com
------------------------------------------------------------------------------
"God made man, the appendix was the result of a committee."
                                -- Dr. G.W. Wettstein
                                   Guerrilla Tactics for Corporate Survival

Re: XEN 4.1.3 blktap2 patches.

[Dr. Greg Wettstein]

On Nov 5,  2:26pm, Pasi =?iso-8859-1?Q?K=E4rkk=E4inen?= wrote:
} Subject: Re: [Xen-devel] XEN 4.1.3 blktap2 patches.

Hi Pasi, hope this note finds your week going well.

> Dr. Greg: RC1 for Xen 4.1.4 is being prepared atm, so hopefully you
> can re-submit these blktap2 bugfix patches for inclusion!

Yes, my apologies for being more then a bit tardy on this.  I have
been consumed with getting 4.2 validated in our development
environment.

I just sent a pair of patches to the list which I refreshed against
the top of the xen-4.1.testing Mercurial repository which contain the
blktap2 patches.  With both applied 4.1.x shows correct behavior with
respect to blktap2 cleanup and termination.

> Thanks,
> 
> -- Pasi

Let me know if anything else is required.

Once again my apologies for being tardy about getting these
re-forwarded.

Best wishes for a successful release and a productive remainder of the
week.

Greg

}-- End of excerpt from Pasi =?iso-8859-1?Q?K=E4rkk=E4inen?=

As always,
Dr. G.W. Wettstein, Ph.D.   Enjellic Systems Development, LLC.
4206 N. 19th Ave.           Specializing in information infra-structure
Fargo, ND  58102            development.
PH: 701-281-1686
FAX: 701-281-3949           EMAIL: greg@enjellic.com
------------------------------------------------------------------------------
"Meeting:
        An assembly of people coming together to decide what person or
        department not represented in the room must solve a problem."
                                -- Unknown
\~t

Re: XEN 4.1.3 blktap2 patches.

[Pasi Kärkkäinen]

On Tue, Nov 06, 2012 at 08:17:50PM -0600, Dr. Greg Wettstein wrote:
> On Nov 5,  2:26pm, Pasi =?iso-8859-1?Q?K=E4rkk=E4inen?= wrote:
> } Subject: Re: [Xen-devel] XEN 4.1.3 blktap2 patches.
> 
> Hi Pasi, hope this note finds your week going well.
> 
> > Dr. Greg: RC1 for Xen 4.1.4 is being prepared atm, so hopefully you
> > can re-submit these blktap2 bugfix patches for inclusion!
> 
> Yes, my apologies for being more then a bit tardy on this.  I have
> been consumed with getting 4.2 validated in our development
> environment.
> 
> I just sent a pair of patches to the list which I refreshed against
> the top of the xen-4.1.testing Mercurial repository which contain the
> blktap2 patches.  With both applied 4.1.x shows correct behavior with
> respect to blktap2 cleanup and termination.
>

Great, thanks a lot! I'm sure the maintainers will comment on the new patches. 

-- Pasi