APAR VM63968 says:
ERROR DESCRIPTION:
This was originally seen as described in PITS 2T0Q191.
This is a deadlock between 2 tasks where one holds
PTIL-X and the other wants a share of PTIL. The task that holds
PTIL-X is deferred on PTE serialization and won't run until
a redrive is done.
The task that currently holds PTE serialization and is
responsible for releasing PTE serialization can't run because
it can't get a share of PTIL.
-----Original Message-----
From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On
Behalf Of william JANULIN
Sent: Monday, March 27, 2006 1:14 PM
To: [email protected]
Subject: Re: Update on z/VM 5.2.0 problem
I don't believe I have seen a description of their
problem. We are planning on an install of zVM 5.2 for
a new client. Is there a description of the problem
available?
Thks,
Bill J.
P.S. Some of us are not afforded the opportunity to
attend SHARE.
--- Kurt Acker <[EMAIL PROTECTED]> wrote:
> The code for this was written as a circumvention and
> is still under
> review. As initial performance testing has been
> very positive, it may
> wind up becoming the official fix, however it is
> still to early for us to
> make that decision. No matter what, the fix test
> can be obtained by
> opening a PMR (this allows us to track anyone with
> the fixtest, keeping
> everyone with the most current information regarding
> its status). Thanks
> and Best Regards,
>
> Kurt Acker
>
>
>
>
> Peter Rothman <[EMAIL PROTECTED]>
> Sent by: The IBM z/VM Operating System
> <[email protected]>
> 03/27/2006 10:40 AM
> Please respond to
> The IBM z/VM Operating System
> <[email protected]>
>
>
> To
> [email protected]
> cc
>
> Subject
> Re: Update on z/VM 5.2.0 problem
>
>
>
>
>
>
> We are also planning to upgrade to z/VM 520 within
> the next few weeks -
> any
> idea when the fix will close so it can be ordered.
>
>
>
>
> Martha McConaghy
> <[EMAIL PROTECTED]
> DU>
> To
>
> Sent by: The IBM
> [email protected]
> z/VM Operating
> cc
>
> System
> <[EMAIL PROTECTED]
> Subject
>
> ARK.EDU> Update on
> z/VM 5.2.0 problem
>
>
> 03/27/2006 10:25
> AM
>
>
> Please respond to
> The IBM z/VM
> Operating System
> <[EMAIL PROTECTED]
> ARK.EDU>
>
>
>
>
>
>
> Those of you who attended our z/VM 5.2.0 Early
> Experiences presentation
> at SHARE know that Marist had some serious problems
> that forced us to back
> out our upgrade. An APAR has been opened on the
> problem, VM63968. Not
> long after SHARE, another customer also had a
> similar problem, so it is
> not isolated to Marist.
>
> This past weekend, we tested a fix for the problem
> and I'm glad to say
> that
> it appears to work. We were able to run for 6 hours
> without the problem
> reoccuring. (The problem involves a serious
> deadlock situation that can
> bring all of CP to its knees.) We are planning to
> bring 5.2.0 up for a
> longer
> period of time during Easter break.
>
> Martha
>
>
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