Just a wild guess. Could it be that CP's and Linux view of cpu numbers are different? I have seen that a number of times and never got to the bottom of it. If so then you could be killing your base processor instead of an alternate.
I see on one of my systems: vmcp q v all STORAGE = 2G XSTORE = none CPU 00 ID FF029EBD20968000 (BASE) IFL CPUAFF ON CPU 01 ID FF029EBD20968000 STOPPED IFL CPUAFF ON more /proc/cpuinfo vendor_id : IBM/S390 # processors : 1 bogomips per cpu: 1835.00 features : esan3 zarch stfle msa ldisp eimm dfp processor 0: version = FF, identification = 029EBD, machine = 2096 In this case they match, but I have seen this with the linus kernel thinking the one running engine was processor 1 Best regards, Pieter Harder [email protected] tel +31-73-6837133 / +31-6-47272537 -----Oorspronkelijk bericht----- Van: Linux on 390 Port [mailto:[email protected]] Namens Victor Echavarry Diaz Verzonden: vrijdag 27 augustus 2010 16:49 Aan: [email protected] Onderwerp: Re: CPU problem Sven: echo 1 > /sys/devices/system/cpu/cpu1/online cpu 1 phys_idx=1 vers=FF ident=01CF8C machine=2097 unused=8000 Aug 27 10:46:39 l20bp kernel: cpu 1 phys_idx=1 vers=FF ident=01CF8C machine=2097 unused=8000 l20bp:~ # 01: HCPGSP2629I The virtual machine is placed in CP mode due to a SIGP stop from CPU 01. Processor 1 spun down Aug 27 10:46:50 l20bp kernel: Processor 1 spun down Is there a way to check is could be a hardware error? At the VM operator console, there is no messages regarding the CPU. Víctor Echavarry System Programmer Technology Systems & Operations Division EVERTEC -----Original Message----- From: Linux on 390 Port [mailto:[email protected]] On Behalf Of Sven Schuetz Sent: Friday, August 27, 2010 10:44 AM To: [email protected] Subject: Re: CPU problem AFAIK you can (and should) omit the vmcp begin cpu 1 And just bring the CPU online in Linux by putting a 1 into /sys/devices/system/cpu/cpu1/online Good luck! Sven On 27/08/10 16:11, Victor Echavarry Diaz wrote: > vmcp begin cpu 1 > ---------------------------------------------------------------------- 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/ ----------------------------------------- CONFIDENTIALITY NOTE: This email communication and its attachments contain information that are proprietary and confidential to EVERTEC, INC., its affiliates or its clients. They may not be disclosed, distributed, used, copied or modified in any way without EVERTEC, Inc.’s authorization. If you are not the intended recipient of this email, you are not an authorized person. Please delete it and notify the sender immediately. EVERTEC, Inc. and its affiliates do not assume any liability for damages resulting from emails that have been sent or altered without their consent. Moreover, EVERTEC, Inc. has taken precautions to safeguard its email communications, but cannot assure that such is the case and disclaim any responsibility attributable thereto. Brabant Water N.V. Postbus 1068 5200 BC 's-Hertogenbosch http://www.brabantwater.nl Handelsregister: 16005077
