Re: z/VM bug, Linux bug, or operator error?

2011-05-27 Thread Carsten Otte 
Hi Mark,

good point, I am going to address the documentation side.

with kind regards
Carsten Otte
IBM Linux Technology Center / Boeblingen lab
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habetur, quomodo habenda est



 Mark Post
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 390 Port   cc
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   Re: z/VM bug, Linux bug, or
   operator error?
 27.05.2011 16:17


 Please respond to
 Linux on 390 Port
 






>>> On 5/26/2011 at 05:14 AM, Carsten Otte  wrote:
> Hi Mark,
>
> could you please trace diag x64 and send the output? You see this message
> due to a diag call failing,
> and the trace would enable the hypervisor people to comment on why that
is.

Hi, Carsten,

Thanks for the offer to help, but the fix was Kris Buelens' comment that a
DCSS must start and end on megabyte boundaries.  That means the "end page"
value should end in x'FF', or at least the subsequent DCSS needs to have a
"start page" value ending in x'00' to avoid overlaps.  That fact should
probably explicitly be called out in the XIP documentation.  (In a blatant
attempt to deflect blame for my shallow z/VM skills. :)


Mark Post

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Re: z/VM bug, Linux bug, or operator error?

2011-05-27 Thread Mark Post 
>>> On 5/26/2011 at 05:14 AM, Carsten Otte  wrote: 
> Hi Mark,
> 
> could you please trace diag x64 and send the output? You see this message
> due to a diag call failing,
> and the trace would enable the hypervisor people to comment on why that is.

Hi, Carsten,

Thanks for the offer to help, but the fix was Kris Buelens' comment that a DCSS 
must start and end on megabyte boundaries.  That means the "end page" value 
should end in x'FF', or at least the subsequent DCSS needs to have a "start 
page" value ending in x'00' to avoid overlaps.  That fact should probably 
explicitly be called out in the XIP documentation.  (In a blatant attempt to 
deflect blame for my shallow z/VM skills. :)


Mark Post

--
For LINUX-390 subscribe / signoff / archive access instructions,
send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit
http://www.marist.edu/htbin/wlvindex?LINUX-390
--
For more information on Linux on System z, visit
http://wiki.linuxvm.org/