2016-07-21 Linux on z Systems - Kernel 4.5 related updates on developerWorks
Please refer to http://www.ibm.com/developerworks/linux/linux390/whatsnew.html for several updates to the 'Development stream': * kernel 4.5 patch for kernel message catalog * s390-tools 1.35.0 delivers new functionality and bug fixes * end of message Mit freundlichen Grüßen / Kind regards Gerhard Hiller Software Management and Linux Technologies IBM Systems Phone: +49-7031-16-4388 IBM Deutschland Schoenaicher Str. 220 E-Mail: ghil...@de.ibm.com 71032 Boeblingen Germany IBM Deutschland Research & Development GmbH Vorsitzende des Aufsichtsrats: Martina Koederitz, Geschäftsführung: Dirk Wittkopp Sitz der Gesellschaft: Böblingen / Registergericht: Amtsgericht Stuttgart, HRB 243294
Re: SLES 12 - to btrfs or not to btrfs
On 08/17/2016 12:14 PM, Mark Post wrote: > I'm hoping that when people are saying "SLES12" they are really > meaning "SLES12 SP1 or later." SLES12 GA has been out of support for > a while now. Oh, definitely. For sure :) As soon as we jump in we'll grab the latest... > With SLES12, zipl really doesn't play much of a role. You still need > it, but it only gets executed when grub2 gets [re-]installed. That's > why you won't see a /etc/zipl.conf any more. Great to know. > Something that _is_ a consideration are btrfs subvolumes. The way > the rollback feature works, everything that is in a subvolume of / is > _not_ included in the snapshots and hence cannot be rolled back. > That's why you see things like /var/log, /home, /opt and so on as > subvolumes. So, don't go creating subvolume without keeping in mind > they won't be part of a rollback. Ok, so we'll leave the defaults then - at least for the OS stuff. Thank you Mark, as always, for your feedback! Regards, Jorge -- 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/
Re: 2016-07-21 Linux on z Systems - Kernel 4.5 related updates on developerWorks
Are there any distributions that package this kernels? On Thu, Aug 18, 2016 at 11:07 AM, Gerhard Hiller wrote: > Please refer to > http://www.ibm.com/developerworks/linux/linux390/whatsnew.html > for several updates to the 'Development stream': > * kernel 4.5 patch for kernel message catalog > * s390-tools 1.35.0 delivers new functionality >and bug fixes > * end of message > > Mit freundlichen Grüßen / Kind regards > *Gerhard Hiller* > > Software Management and Linux Technologies > IBM Systems > Phone: +49-7031-16-4388 IBM Deutschland > Schoenaicher Str. 220 > E-Mail: ghil...@de.ibm.com 71032 Boeblingen > Germany > IBM Deutschland Research & Development GmbH > Vorsitzende des Aufsichtsrats: Martina Koederitz, Geschäftsführung: Dirk > Wittkopp > Sitz der Gesellschaft: Böblingen / Registergericht: Amtsgericht Stuttgart, > HRB 243294 > > -- 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/
Re: [EXTERNAL] Re: cmsfs-fuse data refreshing
Thanks Alan -Original Message- From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Alan Altmark Sent: Wednesday, August 17, 2016 9:58 PM To: LINUX-390@VM.MARIST.EDU Subject: [EXTERNAL] Re: cmsfs-fuse data refreshing No, because there is no logical connection between the Linux guest and the CMS guest. Linux has no way to know that the disk contents were changed. Only by using NFS can Linux see a changed file, and that file would be an SFS file. Regards, Alan Isaac Raschkovsky --- [LINUX-390] cmsfs-fuse data refreshing --- From:"Isaac Raschkovsky" To:LINUX-390@VM.MARIST.EDUDate:Wed, Aug 17, 2016 2:44 PMSubject:[LINUX-390] cmsfs-fuse data refreshing Is there any way that we can make changes or create a file on CMS and access the changes on a cmsfs-fuse directory already mounted? It looks like the data is not refreshed on Linux and I have to unmount vary the dasd offline, vary online and mount again to see the changes.Any suggestion would be appreciate. ThanksIsaacNothing in this message is intended to constitute an electronic signature unless a specific statement to the contrary is included in this message.Confidentiality Note: This message is intended only for the person or entity to which it is addressed. It may contain confidential and/or privileged material. Any review, transmission, dissemination or other use, or taking of any action in reliance upon this message by persons or entities other than the intended recipient is prohibited and may be unlawful. If you received this message in error, please contact the sender and delete it from your computer.--For LINUX-390 subscribe / signoff / archive access instructions,send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visithttp://www.marist.edu/htbin/wlvindex?LINUX-390--For more information on Linux on System z, visithttp://wiki.linuxvm.org/ -- 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/ Nothing in this message is intended to constitute an electronic signature unless a specific statement to the contrary is included in this message. Confidentiality Note: This message is intended only for the person or entity to which it is addressed. It may contain confidential and/or privileged material. Any review, transmission, dissemination or other use, or taking of any action in reliance upon this message by persons or entities other than the intended recipient is prohibited and may be unlawful. If you received this message in error, please contact the sender and delete it from your computer.
Re: 2016-07-21 Linux on z Systems - Kernel 4.5 related updates on developerWorks
>>> On 8/18/2016 at 07:52 AM, Christer Solskogen wrote: > Are there any distributions that package this kernels? Not Linux 4.5, no, but as that page says, there's no new functionality for z Systems included in 4.5. In general, new functionality is back ported to older versions and included at Service Pack/Update boundaries. In the case of SUSE SLES12 SP2, we're actually upgrading the kernel to version 4.4, but that doesn't happen every time. 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/
Re: SLES 11 SP4 - Kernel locking up
Yes, we can confirm similar strangeness had occurred after applying the kernel patch and restarting, on servers with 32-bit apps. Four were patched with the 24 Jun, 2016 (the Linux Kernel 12631 s390x ) kernel, and one did not have the runaway CPU issue (and debug console spit upon initialization). That lucky one did NOT have any 32-bit apps running. Also had a Tivoli mon server that complained about 'socks' upon startup, although sans the same debug spit seen on the two with 32-bit apps (Mainview and ConnectDir). Saw the new kernel patch come out in August (SuSE never got back to us on that) via their patch finder (download) website. Applying the kernel patch in our next patching round, so hopefully it was resolved as SuSE support says. Doug Ponte z/VM + zLinux Senior Systems Programmer Lockheed Martin/Ingersoll Consulting Service Delivery Staff U.S. Department of Justice JMD/OCIO douglas.c.po...@usdoj.gov -Original Message- From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Mohammad Zachariah Sent: Wednesday, August 17, 2016 12:26 To: LINUX-390@VM.MARIST.EDU Subject: Re: SLES 11 SP4 - Kernel locking up It is limited to 32-bit apps only, A new kernel with the fix released already, please contact your support. Best Regards, Mohammad Y. Zachariah System Support Representative , Linux Support To open or view an IBM PMR electronically http://www.ibm.com/support/servicerequest/help/srHelp.action Phone: 303 - 354 - 8832 E-mail: mzach...@eg.ibm.com B145 IBM Smart Village Cairo Egypt From: Aria Bamdad To: LINUX-390@VM.MARIST.EDU Date: 08/17/2016 06:24 PM Subject:Re: SLES 11 SP4 - Kernel locking up Sent by:Linux on 390 Port Thanks Marcy. I have a bunch of servers with this kernel level. Do you know if it limited to specific 32 bit applications or all? -Original Message- From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Marcy Cortes Sent: Wednesday, August 17, 2016 12:17 PM To: LINUX-390@VM.MARIST.EDU Subject: Re: SLES 11 SP4 - Kernel locking up It's not out yet. You'll need to contact SUSE for a PTF. I was told it is 987099 in Bugzilla.suse.com But I don't seem to have access to that. -Original Message- From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Aria Bamdad Sent: Wednesday, August 17, 2016 9:11 AM To: LINUX-390@VM.MARIST.EDU Subject: Re: [LINUX-390] SLES 11 SP4 - Kernel locking up Does anyone know what kernel level this bug has been fixed in or can you provide a link to an issue that I can monitor? Thanks, Aria -Original Message- From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Marcy Cortes Sent: Wednesday, August 03, 2016 5:30 PM To: LINUX-390@VM.MARIST.EDU Subject: Re: SLES 11 SP4 - Kernel locking up Yes, we saw it and someone else here did last week too. SUSE has a test fix for it. Has to do with running 32bit programs. ILMT was the one that we discovered it with. -Original Message- From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Jorge Fábregas Sent: Wednesday, August 03, 2016 2:23 PM To: LINUX-390@VM.MARIST.EDU Subject: [LINUX-390] SLES 11 SP4 - Kernel locking up Hi everyone, We're having some kernel locking issues after installing the latest kernel for SLES 11 SP4 (kernel-default-3.0.101-77.1). This is on two separate Linux guests and it happens - right away- after starting some network applications: Linux completely freezes. If we go back to the previous kernel everything runs fine. I've opened a case with SUSE & we'll be uploading a z/VM dump of the guests but wondered if anyone else has seen this before (recently)? Thanks! -- Jorge -- 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/ -- For LINUX-390 subscribe / signoff / archive access instructions, send email to
