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.
with kind regards
Carsten Otte
IBM Linux Technology Center / Boeblingen lab
--
omnis enim res, quae dando non deficit, dum habetur et non datur, nondum
habetur, quomodo habenda est
Mark Post
<[email protected]
> To
Sent by: Linux on [email protected]
390 Port cc
<[email protected]
ist.edu> Subject
z/VM bug, Linux bug, or operator
error?
25.05.2011 02:49
Please respond to
Linux on 390 Port
<[email protected]
ist.edu>
Cross-posted to IBMVM and Linux-390
I'm working on a project where I want an xip2 file system that is larger
than 2GB. So, I'm trying to use the support built into z/VM and Linux to
logically concatenate multiple DCSS into one. But, I can't seem to get it
to work. I can load one segment or the other, but not both. The message
that comes out on the console is
extmem.cb0afe: ITMV1B needs used memory resources and cannot be loaded or
queried
"man extmem.cb0afe" says "You cannot load or query the DCSS because it
overlaps with an already loaded DCSS or with the memory of the z/VM guest
virtual machine (guest storage)." I don't believe any of those apply, but
I need someone to tell me what to do differently, or to whom I should be
complaining.
The segments are defined as this:
FILE FILENAME FILETYPE BEGPAG ENDPAG TYPE CL #USERS
0054 ITMV1A DCSSG 0000000280000 00000002FFE00 SR A 00000
0055 ITMV1B DCSSG 00000002FFE01 000000037FD00 SR A 00000
The guest virtual storage is 1GB:
#CP Q V STOR
STORAGE = 1G
The kernel was booted with a mem= value sufficient to contain the highest
address of the ITMV1B DCSS:
# cat /proc/cmdline
root=/dev/disk/by-path/ccw-0.0.9300-part1 TERM=dumb mem=16384M
BOOT_IMAGE=0
The command to allocate the two DCSS is:
echo itmv1a:itmv1b > /sys/devices/dcssblk/add
And that's where I get my error (after 2 minutes). As I said previously,
if I try to load them individually, I can do one or the other, but not
both.
This is an up to date SLES11 SP1 system, running on z/VM 6.1 RSU 1003.
Does anyone see the problem?
Mark Post
----------------------------------------------------------------------
For LINUX-390 subscribe / signoff / archive access instructions,
send email to [email protected] 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/
----------------------------------------------------------------------
For LINUX-390 subscribe / signoff / archive access instructions,
send email to [email protected] 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/
