Am Donnerstag, 29. Mai 2008 schrieb Mike Walter:
At one point one of our zLinux (marketing and politically incorrect)
Proof of Concept servers suffered some form of filesystem corruption. The
fstab was severely wounded, requiring that it be manually rebuilt by hand.
During the rebuild
Am Mittwoch, 12. Dezember 2007 schrieb Michael MacIsaac:
Somebody posted that there is a better command than sleep designed to wait
until the chccwdev -e took effect. Anybody remember that call?
On current udev versions you can call udevsettle to make sure everything
is done related to
Am Dienstag, 25. September 2007 schrieb Jorge Souto:
I'd like to name the devices similar to the minidisks:
/dev/dasd200
/dev/dasd201
/dev/dasd200a (pav for minidisk 200)
I think it's possible with udev, but /dev/dasdx it's the kernel name.
Yes udev is the tool you want to use.
If
Am Freitag, 21. September 2007 schrieb Richard Troth:
Skip the partitioning game. Put the filesystem on /dev/dasdd instead
of /dev/dasdd1 and mount that. (be sure all this matches /etc/fstab, of
course)
Rick,
Never suggest that again, please. You really have to know your systems very
well
Am Freitag, 21. September 2007 schrieb Richard Troth:
Christian,
Never assume that ECKD is CDL again, please.
And never assume its not, please :-)
Rick, I know that you have enough knowledge about disk formats. And people
trust you, because they know you have a lot of experience. So when you
Hi Susan,
While at SLES9, would you recommend hcp be used instead of vmcp at least
during boot? The Basevol/Guestvol script uses hcp, but since it sounded
like vmcp was preferred over hcp, I changed the script to invoke vmcp
instead.
I would recommend vmcp, but I am biased here. Use
Am Montag, 2. Juli 2007 schrieb Susan Zimmerman:
Hi Mark.
I noticed /sys/class/misc/vmcp was 10 63
OSA-LNX1:~ # cat /sys/class/misc/vmcp/dev
10:63
So I deleted /dev/vmcp and manually created the node
as 10 63
and now it works just fine.
Thanks for your help.
Yes, vmcp
Am Mittwoch, 6. Juni 2007 schrieb Michael MacIsaac:
Hello list,
An ISV uses the function coredump() on AIX in C/C++ code to dump a
program's core, but NOT terminate - for debugging. Apparently there is no
such function on Linux.
Does anyone know of a comparable tool, or another way to
Am Donnerstag, 17. Mai 2007 15:22 schrieb Marcy Cortes:
I'd like to be able to reference devices like /dev/dasd/8000/part1 instead
of via /dev/dasdc1. (or /dev/dasd/0.0.8000/part1 is close enough) like
Levanta does.
Reading all the device driver stuff it looks like I need to implement udev.
On Tuesday 08 May 2007 19:10, McKown, John wrote:
FWIW, I've never heard of such a thing. Especially if what you want is
the ability to migrate unused files from disk to tape with automagic
recall if they are later accessed. I don't think this is in the UNIX
Actually migrating unused files
On Wednesday 21 March 2007 17:11, Jose Raul Baron wrote:
why can't I see any of the things I post ?
In contrast to masterdomo LISTSERV does not reflect your own messages.
You can enable that with a mail to
[EMAIL PROTECTED]
and
SET LINUX-390 REPRO
as the body of the message.
--
IBM
On Friday 09 March 2007 02:38, LJ Mace wrote:
The server gets the kill signal and stops but never
reboots .
which kernel and which VM are you running?
in Linux:
uname -a
in VM:
#query cplevel
--
IBM Deutschland Entwicklung GmbH
Vorsitzender des Aufsichtsrats: Johann Weihen
On Friday 09 March 2007 12:42, LJ Mace wrote:
cp query
z/VM Version 5 Release 1.0, service level 0501
(64-bit)
linux
Linux l2dld01 2.6.5-7.283-s390 #1 SMP Wed Nov 29
16:55:53 UTC 2006 s390 s390 s390 GNU/Linux
Hello Mace,
your Linux looks quite recent, but your z/VM service level is quite
On Thursday 08 March 2007 20:52, LJ Mace wrote:
Thank you for the info. The presentation doesn't fit
I'm missing the first and last few letters/words on
every page,but I digress.
I added the 2 parms and now the -h option works great
the problem I still have is with the -r option. Is
there a
On Monday 05 March 2007 14:05, LJ Mace wrote:
OK I'm a little(some will disagree and say alot) dense
but I don't see the kernel line. Here is my
zipl.conf:
[...]
parameters = root=/dev/dasda1 selinux=0 TERM=dumb
[...]
--- Christian Borntraeger [EMAIL PROTECTED] wrote:
[...]
- look
On Monday 05 March 2007 16:55, Bernard Wu wrote:
But what happens if one wants to recycle linux with the REBOOT command
from Linux ?
Reboot should not trigger the vmhalt or vmpoff command.
--
IBM Deutschland Entwicklung GmbH
Vorsitzender des Aufsichtsrats: Johann Weihen
Geschäftsführung:
On Monday 05 March 2007 17:04, Bernard Wu wrote:
Added MODULES_LOADED_ON_BOOT=vmcp to /etc/sysconfig/kernel
Booted, but it did not work. Did a modprobe vmcp and worked.
Very strange. That's the way we load vmcp on all 14 guests here .
MODULES_LOADED_ON_BOOT is SLES specific. ON RHEL you
On Monday 05 March 2007 17:36, LJ Mace wrote:
I added the 2 lines you gave me into the server. I
ermm? It was one line and it should replace the existing one.
--
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Vorsitzender des Aufsichtsrats: Johann Weihen
Geschäftsführung: Herbert Kircher
Sitz der
On Monday 05 March 2007 20:07, LJ Mace wrote:
Here is th eline now:
parameters = root=/dev/dasda1 selinux=0 TERM=dumb
elevator=cfq
vmhalt=LOGOFF
vmpoff=LOGOFF
What am I missing??
all on one line. Then run zipl. Then reboot.
--
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Vorsitzender des
On Sunday 04 March 2007 20:48, Roach, Dennis wrote:
xautolog works great to bring Linux up.
When, under Linux, I issue a shutdown -h, Linux comes down but the VM user
ID is still in disconnect status. The ID uses the standard profile from the
tool-kit that looks for the disconnect ans IPLs 100
PROTECTED]
-L: linux-390@vm.marist.edu
+L: linux-390@vm.marist.edu (user-oriented, no kernel development)
W: http://www.ibm.com/developerworks/linux/linux390/
S: Supported
--
Mit freundlichen Grüßen / Best Regards
Christian Borntraeger
Linux Software Engineer zSeries Linux
want.
--
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Christian Borntraeger
Linux Software Engineer zSeries Linux Virtualization
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send email to [EMAIL PROTECTED
platform. As valgrind uses a
compiler-like method for code analysis it is not possible to just recompile
the tool, we would need a complete backend.
--
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Christian Borntraeger
Linux Software Engineer zSeries Linux Virtualization
.fd20,0.0.fd21,0.0.fd22 /sys/bus/ccwgroup/drivers/qeth/group
should do the trick.
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Christian Borntraeger
Linux Software Engineer zSeries Linux Virtualization
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it is not the nicest way of signalling, yes you could abuse hotplug
or udev to trigger an action (e.g. by defining a virtual ctc device and
intercepting this with hotplug or udev).
--
Mit freundlichen Grüßen / Best Regards
Christian Borntraeger
Linux Software Engineer zSeries Linux Virtualization
, flexibility and syntax really differs from
distro to distro, so you have to learn different udevs.
And, no, I do not suggest to use udev+machine checks for guest signalling in
an production environment. I just looks dirty :-)
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Christian Borntraeger
Linux
activate these device with scripts, or if hotplug is properly
configured, hotplug can activate these devices (IIRC on SUSE the hwup script
is called which checks the config files in /etc/sysconfig/hardware/)
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Christian Borntraeger
Linux Software
strange symptoms. Also
check your micro code level (see the link for details)
Hope this helps.
--
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Christian Borntraeger
Linux Software Engineer zSeries Linux Virtualization
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For LINUX-390
for that page and write the page back.
Problem is, the root file system of the installer is cramfs, which is
readonly and, therefore, no writepage function is available.
If the problem still appears with the PTF feel free to open a problem report.
--
Mit freundlichen Grüßen / Best Regards
Christian
, the hardware must be at least the following MCL level
in order to run LINUX KERNEL 2.6.16 in a virtual machine: J13484.137 for
z890/z990. After that, you can reenable QIOA. If you have still problems,
please let us know.
cheers
--
Mit freundlichen Grüßen / Best Regards
Christian Borntraeger
Linux
On Tuesday 01 August 2006 14:07, Nilson Vieira wrote:
Please,
Can you tell me how to disable QDIO ASSIST on ZVM?
You can query the state with
QUERY QIOA
You can disable it for a specific guest with
SET QIOA OFF
cheers
--
Mit freundlichen Grüßen / Best Regards
Christian Borntraeger
Linux
down* at the time of backup, full volume dumps from outside the
Linux system are more than likely to be useless and journaling does not help
here.
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Christian Borntraeger
Linux Software Engineer zSeries Linux Virtualization
buffer sizes from min to max. This is s390-tools version
1.5.1.
another idea. Does:
rmmod vmcp
rm /dev/vmcp
modprobe vmcp
solves this problem?
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Christian Borntraeger
Linux Software Engineer zSeries Linux Virtualization
,
but the old device node points to the wrong device.
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Linux Software Engineer zSeries Linux Virtualization
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and the uev version of SLES9 did not
replace it with the new one.
cheers
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Christian Borntraeger
Linux Software Engineer zSeries Linux Virtualization
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or not.
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Christian Borntraeger
Linux Software Engineer zSeries Linux Virtualization
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send email
Hello Michael,
On Thursday 12 January 2006 22:08, Michael MacIsaac wrote:
Is there a way to get vmcp to return the CP return code rather than 1?
hcp behaves as I'd expect:
# hcp q linux04
HCPCQU045E LINUX04 not logged on
# echo $?
45
But vmcp seems to return only 0 or 1:
# vmcp q
will apply the patch.
--
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Christian Borntraeger
Linux Software Engineer zSeries Linux Virtualization
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Spin ... if the open() fails because of EBUSY,
then wait some fraction of a second and try again.
Or fail immediately with a the hypervisor is busy.
If after a wait and re-try it fails again, then fail
with the busy error message, or wait a second interval.
This is not rocket science.
Alan (Cox), Martin is right. The DIAG interface is complicated
and varies from one DIAG code to the next and requires guest real
addressing, which for Linux is kernel space. (And since CMS
has a flat addressing model, it can use pretty much any DIAG
function without pointer pains like
One of the better aspects of the CPINT package is /dev/diag8
(or /dev/cpint8). You can use it as a character file
(that is, write commands to it, read responses from it)
but you can also perform ioctl() to recover the return code.
vmcp has the same capability. You can open the devicenode
You missed the point.
The point is that neither 'vmcp' nor /dev/vmcp offer even a hint of
the underlying DIAG interface. Both 'vmcp' and /dev/vmcp obscure
the DIAG interface from the very programmers who should see it.
In the CPINT case, yes, 'hcp' hides the DIAG details.
That's as it
You could have asked any VM person on what the right way would be
to address the buffer size. Yes, you want a way to set the buffer
size, and otherwise for query commands you want to automagically
extend the buffer and retry (but not for all commands, please). I
Agreed, I should have talked
Rob,
I forgot that comment:
It's annoying to silently truncate the response, so should you not
write something into stderr to point that out?
vmcp has a return value, which you can check in scripts.
e.g:
# vmcp some large query
# echo $?
0 stands for everything is fine, any other value for
On Oct 4, 2005, at 11:10 AM, Gerhard Hiller wrote:
- s390-tools 1.5.0 (new release) with new features
How does vmcp compare with cpint? What are the similarities and
differences?
Hi Adam,
vmcp has similar capabilities as the hcp component of cpint, but
it does not provide the
Is it possible to force an FSCK on all file systems defined to a Linux
guest at IPL? I am seeing some errors in /opt/warn that are concerning
me
[...]
Any ideas/thoughts will be greatly appreciated.
Does
$ touch /forcefsck
$ reboot
work?
--
Mit freundlichen Grüßen / Best Regards / Un
Linux on 390 Port LINUX-390@VM.MARIST.EDU wrote on 03.06.2005 14:52:22:
I have the following problem found at a customer (snip of
/var/log/messages
below)
First of all what does does __alloc_pages: 0-order allocation failed
mean? Is there no memory left? Could Linux really run into such a
Anybody knows if this is applicable to SLES 9.0 too.
It don't seems to work.
[...]
root=/dev/dasd/010f/part1 ro noinitrd dasd=010F,0100 vmpoff=LOGOFF
There are two options, vmhalt and vmpoff.
It works, if you specify
vmpoff=LOGOFF
and use
halt -p or poweroff
If you specify
vmhalt=LOGOFF
Thanks. Do you also know where to find this type of info.
http://awlinux1.alphaworks.ibm.com/developerworks/linux390/docu/l26bdd00.pdf
---page 343,344
more documentation is on
http://awlinux1.alphaworks.ibm.com/developerworks/linux390/april2004_documentation.shtml
--
Mit freundlichen Grüßen /
Tom Duerbusch [EMAIL PROTECTED] wrote on 04.04.2005 18:50:23:
OK thanks.
I'll take it that Linux stopping for 30 some odd seconds to query
all these possible cpus, is a feature not a problemG.
No, detecting 32 cpus is feature...the 30 second delay is not.
I somehow overlooked the 30 second
Linux on 390 Port LINUX-390@VM.MARIST.EDU wrote on 02.04.2005 00:04:37:
Somewhere, somehow, and only sometimes, SLES9 thinks I have 32 cpus!
cpu 0 phys_idx=0 vers=FF ident=XX machine=7060 unused=
Brought up 32 CPUs
This is the only SLES9 image that has SP1 installed. All other
Linux on 390 Port LINUX-390@VM.MARIST.EDU wrote on 28.02.2005 15:15:06:
I've got a guest that I applied maintenance to that I can't IPL any
longer.
When I IPL I immediately receive
00: CP IPL 201
00: HCPGIR453W CP entered; program interrupt loop
I thought maybe I had forgotten to do a
Linux on 390 Port LINUX-390@VM.MARIST.EDU wrote on 15.02.2005 17:49:19:
Our Linux guys are trying to do a PARALLEL FORMAT of 2 disks. They are
using YAST2 on SUSE9 / z/vm 5.1and when they START the format
the network on the LINUX guest goes away!!You can not restart it
then
only way to
Linux on 390 Port LINUX-390@VM.MARIST.EDU wrote on 10.02.2005 19:02:48:
I have the following CD images I like to make available to my
z/penguins,
mounted using the loopback device.
[...]
/iso_images/Su810_001.iso
607168607168 0 100% /SLES8/CD1
I'm trying to find out if anyone has successfully accessed raw devices
in SLES9. We're on kernel 2.6.5-7.139 (SP1). The error I get is
Raw devices are no longer the first choice in Linux Kernel 2.6. If
possible applications should use standard block operations with O_DIRECT
instead.
I'm trying to find out if anyone has successfully accessed raw devices
in SLES9. We're on kernel 2.6.5-7.139 (SP1). The error I get is
Raw devices are no longer the first choice in Linux Kernel 2.6. If
possible applications should use standard block operations with O_DIRECT
instead.
Linux on 390 Port LINUX-390@VM.MARIST.EDU wrote on 25.01.2005 12:49:46:
In our 2.4 systems we set the dasd device order with zipl.conf. The
order the devices were added corresponded to which minor number it
received... /dev/dasda before /dev/dasdb, etc.
As far as I understood, you can still
Linux on 390 Port LINUX-390@VM.MARIST.EDU wrote on 10.01.2005 18:57:37:
File /etc/chandev.conf does not seem to exist in zLinux SLES9.
/etc/modules.conf was replaced by /etc/modprobe.conf
Any other changes? What file replaced chandev.conf?
Have a look at /etc/sysconfig/hardware ,
Hi,
I have several times noticed the following symptoms on SLES8 machines
on zVM440:
- the machine is not reachable on the network
- it does not show any activity on the USER screen of PTK
- there is no I/O outstanding to either Vswitch (eth0) or Hipersockets
(hsi1), which is abnormal
-
I wrote:
Your kernel is too old and this problem was fixed in November 2003.
Oh, if you want to stick to a single processor setup you dont need this
patch. You should then consider the mail of Rob and disconnect your
terminal.
--
Mit freundlichen Grüßen / Best Regards / Un cordial saludo
Linux on 390 Port [EMAIL PROTECTED] wrote on 14.12.2004 06:30:50:
- kernel version (unpatched SuSE SLES8 SP3):
Linux version 2.4.21-75-default (root's390z06) (gcc version 3.2.2) #1
SMP
Fri Oct 31 00:42:59 UTC 2003
Your kernel is too old and this problem was fixed in November 2003.
Linux on 390 Port [EMAIL PROTECTED] wrote on 24.11.2004 18:48:39:
weeks ago. Since we have moved to the LPAR, the SuSE image occasionally
runs the CPU to 100%. I can see in VM that the guest is not doing IO,
it
[...]
Is there a way under VM to see what the Linux guest is doing? Also, do
Linux on 390 Port [EMAIL PROTECTED] wrote on 28.10.2004 06:04:05:
I was wondering if anyone has tried running WebSphere with a
2.4 kernel in SLES 9? The default 2.6 kernel can't be used due
to incompatibilities in the threading model
Why would you want to? Why not just run WebSphere on
Linux on 390 Port [EMAIL PROTECTED] wrote on 25.10.2004 12:08:13:
Every Sunday night our VM shuts down telling :
HCPPGT401I 90 percent of all pagins space is in use.
HCPPGT400I All paging space is in use
HCPPGT401I 90 percent of all spooling spaces is in use.
And then shuts down.
Have
Linux on 390 Port [EMAIL PROTECTED] wrote on 20.10.2004 15:09:42:
pequot:~ # date
Wed Oct 20 07:58:38 CDT 2004
pequot:~ # date 11012004
Mon Nov 1 20:04:00 CST 2004
pequot:~ # date 10202004
Wed Oct 20 20:04:00 CDT 2004
pequot:~ # ntpdate condor
20 Oct 07:59:06 ntpdate[4427]: step time
We've been fighting an extremely annoying issue where heavy Samba usage
causes a loss of network connectivity through an OSA card. Sometimes
Are you running on a z990 under VM? Then you should check if
#CP SET QIOA OFF
fixes your problem.
If not, you should first check if you have installed
: undefined reference to `cio_is_console'
[..]
CONFIG_CCW_CONSOLE is not found in .config
Its a known issue.
The easiest way to fix this is to select either
CONFIG_TN3215_CONSOLE or CONFIG_TN3270_CONSOLE. (Found under Character
Device Drivers)
As both items have dependencies, do not edit
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