Re: komd issues - was [Re: [openMosix-general] openmosix 2.4.26 in 2.4.31?]

Hello,


  Is there a patch that you can refer us to for the kcomd 
segfault? (as in, the one that contains the kcomd code, 
not the one that contains the fix ;-)

  I'm not in a position to test it, but I can run a set of eyes
over it - though I suspect I've coded more segfaults than 
I've fixed.  Late night code and pointers to pointers don't
mix ...





----- Original Message -----
>From: "Matt Dew" <[email protected]>
>To: <moshe-ay74M1d3r6RWk0Htik3J/[email protected]>
>Subject:  [Openmosix-devel] komd issues - was [Re:	[openMosix-general]	openmosix 
2.4.26 in 2.4.31?]
>Date: Tue, 19 Sep 2006 17:11:49 -0600
>
> Moshe,
>   kcomd has one show stopper.  There is a bug that causes migrated
> processes to segfault whenever a system call is issued.  Since even
> exit() is a system call it's a major problem.  This bug doesn't happen
> on every migrated process so it's been difficult to pin down.  
> 
> Sadly, I've spent a large amount of time on this bug to no avail.  I
> need some assistance in fixing it.
> 
> Other issues are to finish the spinlocks for smp safety and change the
> migration code to speed up migrations.  Neither of these two do I
> consider major issues.
> 
> 
> Florian has been very helpful in breaking up the big patch into smaller
> ones.  Thanks again Florian.
> 
> Matt
> 
> 
> On Mon, 2006-09-18 at 09:16 +0000, moshe bar  wrote:
> > We need to have a strong effort to test your tools by as many people  
> > as possible and then release them as one package by Kris.
> > 
> > Matt what's missing on the kcomd side?
> > 
> > Moshe
> > 
> > 
> > On Sep 18, 2006, at 4:24 AM, Carl Radford ((DC0854-IT)) wrote:
> > 
> > > Hi Moshe,
> > >
> > > The 2.6 tools are not the problem (my version is already usable,  
> > > awaiting user feedback).
> > > Matt Dew has been putting some serious effort into kcomd, and needs 
> 
> > > the help of others to put some
> > > effort in. The only person that appears to be onboard with this so  
> > > far is Florian.
> > >
> > > -----Original Message-----
> > > From: moshe bar [mailto:moshe-ay74M1d3r6RWk0Htik3J/[email protected]]
> > > Sent: 17 September 2006 16:25
> > > To: [email protected]
> > > Cc: openmosix-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org; Irfan Habib
> > > Subject: Re: [openMosix-general] openmosix 2.4.26 in 2.4.31?
> > >
> > >
> > > Martin
> > >
> > > Yes, we are glad to have oMFS and DFSA behind us. Using something
> > > like Red Hat's GFS is so much more better.
> > >
> > > David (Orcero), where are we with the user space tools?
> > >
> > > Moshe
> > >
> > >
> > > On Sep 17, 2006, at 8:51 AM, Deadpan110 wrote:
> > >
> > >> I read somewhere in the oM development user lists that someone was
> > >> working on a 2.4.32 kernel patch (without checking, I wouldnt know 
> 
> > >> how
> > >> stable it is or even if it is finished).
> > >>
> > >> openMosix could definately do with a patch for 2.4.32 while we have
> > >> the long wait for the 2.6.* versions with userspace tools.
> > >>
> > >> Out of curiosity, I tried the Mosix 2.4.32 kernel patch and found
> it
> > >> fairly unstable along with the old problems of MFS and DFSA
> > >> (expecially if you use pivot_root).
> > >>
> > >> It didn't take me long to decide to switch back to openMosix 2.4.26
> > >> instead!
> > >>
> > >> Martin
> > >>
> > >> On 15/09/06, James Wagner <jwagner-I/[email protected]> wrote:
> > >>> I've tried to do so, but after 3 hours of beating my head into the
> > >>> wall
> > >>> trying to determine the differences and exactly where to manually
> > >>> apply
> > >>> the changes, gave up.  It's far easier to simply download the full
> > >>> (already-patched) 2.4.26 kernel and configure lilo to dual-boot.
> > >>> I only
> > >>> needed a cluster's power for a single project though, so this may
> > >>> not be
> > >>> acceptable for your situation.
> > >>>
> > >>> I take it that you're another slackware fan? :)
> > >>>
> > >>> Jim
> > >>>
> > >>> Irfan Habib wrote:
> > >>>
> > >>>> Hi,
> > >>>>
> > >>>> Is it possible for me to patch the 2.4.31 kernel with
> > >>>> the available OM 2.4.26 patch?
> > >>>>
> > >>>> regards
> > >>>> Irfan
> > >>>>
> > >>>> __________________________________________________
> > >>>> Do You Yahoo!?
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> > >>>> http://mail.yahoo.com
> > >>>>
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> ------------------------------------------------------------------- 
> > >>>> -
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> > >>>> _______________________________________________
> > >>>> openMosix-general mailing list
> > >>>> openMosix-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
> > >>>> https://lists.sourceforge.net/lists/listinfo/openmosix-general
> > >>>>
> > >>>>
> > >>>>
> > >>>
> > >>>
> -------------------------------------------------------------------- 
> > >>> -
> > >>> ----
> > >>> Using Tomcat but need to do more? Need to support web services,
> > >>> security?
> > >>> Get stuff done quickly with pre-integrated technology to make your
> > >>> job easier
> > >>> Download IBM WebSphere Application Server v.1.0.1 based on Apache
> > >>> Geronimo
> > >>> http://sel.as-us.falkag.net/sel?
> > >>> cmd=lnk&kid=120709&bid=263057&dat=121642
> > >>> _______________________________________________
> > >>> openMosix-general mailing list
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> > >>> https://lists.sourceforge.net/lists/listinfo/openmosix-general
> > >>>
> > >>
> > >>
> --------------------------------------------------------------------- 
> > >> -
> > >> ---
> > >> Using Tomcat but need to do more? Need to support web services,
> > >> security?
> > >> Get stuff done quickly with pre-integrated technology to make your
> > >> job easier
> > >> Download IBM WebSphere Application Server v.1.0.1 based on Apache
> > >> Geronimo
> > >> http://sel.as-us.falkag.net/sel?
> > >> cmd=lnk&kid=120709&bid=263057&dat=121642
> > >> _______________________________________________
> > >> openMosix-general mailing list
> > >> openMosix-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
> > >> https://lists.sourceforge.net/lists/listinfo/openmosix-general
> > >
> > >
> > >
> ---------------------------------------------------------------------- 
> > > ---
> > > Using Tomcat but need to do more? Need to support web services,  
> > > security?
> > > Get stuff done quickly with pre-integrated technology to make your  
> > > job easier
> > > Download IBM WebSphere Application Server v.1.0.1 based on Apache  
> > > Geronimo
> > > http://sel.as-us.falkag.net/sel? 
> > > cmd=lnk&kid=120709&bid=263057&dat=121642
> > > _______________________________________________
> > > openMosix-general mailing list
> > > openMosix-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
> > > https://lists.sourceforge.net/lists/listinfo/openmosix-general
> > 
> > 
> >
> -------------------------------------------------------------------------
> > Using Tomcat but need to do more? Need to support web services,
> security?
> > Get stuff done quickly with pre-integrated technology to make your job
> easier
> > Download IBM WebSphere Application Server v.1.0.1 based on Apache
> Geronimo
> >
> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
> > _______________________________________________
> > openMosix-devel mailing list
> > openMosix-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
> > https://lists.sourceforge.net/lists/listinfo/openmosix-devel
> 
> 
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--
Ian Latter
Late night coder ..
http://midnightcode.org/


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