20 June 2023

Attendees

• Elizabeth K. Joseph (IBM / Debian)
• Sarah Kriesch (openSUSE)
• Vignesh (various upstream)
• Daniel Horak (Fedora)
• David Edelsohn (IBM)

Agenda

• Recording from openSUSE conference will be uploaded at the end of the month, about 20 people attended the presentation
• Linux Distributions Collaboration on the Mainframe at Devconf.cz 2023 with about 15 participants, and good discussions https://devconfcz2023.sched.com/event/1MYmY
• David suggested coming up with list of reasons why the mainframe is a compelling application developer target - why is it worth their effort? May seem like a niche target, but it has a huge impact. Also, technically interesting.
• Vignesh shared that DragonflyDB is planning to start building for s390x, they shared that their vertically scaled application is a good fit for the mainframe
• Vignesh himself had a technical interest in porting applications for startups
• Lyz had a talk accepted to All Things Open and this may be a good slide to include
• OMP CFP is open, Lyz & Sarah will brainstorm some ideas for a presentation https://www.openmainframeproject.org/event/open-mainframe-summit-cfp
• openSUSE Leap 15.5 released, Sarah to do some release blogging
• Debian 12 (bookworm) released with continued s390x support: https://www.debian.org/releases/bookworm/s390x/release-notes/
• David is going to a Tezos/OCaml meetup in NYC tonight to maintain engagement with that community

• Dan mentioned some issues with btrfs-progs which have now been fixed upstream: https://github.com/kdave/btrfs-progs/issues/639

16 May 2023

Attendees:

• Elizabeth K. Joseph (IBM)
• Sarah Kriesch (openSUSE)
• Dipak Zope (Debian)

Agenda:

• Lyz and Dipak are working with the Debian CI folks to get a container on the build system so we can do some analysis and debugging of traffic/slowness concerns they’re seeing https://lists.debian.org/debian-s390/2023/05/msg00000.html
• openSUSE conference coming up May 26 - 28, 2023, and Sarah is speaking on "The Mainframe: An alternative platform for openSUSE" https://events.opensuse.org/conferences/oSC23/program/proposals/4058 which includes a section about this WG!

11 April 2023

Attendees

• Elizabeth K. Joseph (IBM)
• Sarah Kriesch (openSUSE)
• Vignesh (Redpanda upstream)
• Dipak Zope (Debian)
• Dan Horak (Fedora)
• David Edelsohn (IBM)
• Neil Hanlon (Rocky Linux)

Agenda:

• Sarah submitted a talk to openSUSE conf and confirmed that the issue in her latest mail to the list has been resolved
• Neil of Rocky Linux said some s390x builds are slow/fail but can be nudged along, will follow-up with Lyz soon about trying a KVM guest in the LinuxONE open source cloud environment
• Vignesh provided update on his progress with Redpanda (see mailing list: https://lists.openmainframeproject.org/g/wg-linux-distros/message/106)
• David chimed in about ongoing dpdk work/issues
• On the topic of OpenMPI Sarah shared: https://build.opensuse.org/package/live_build_log/openSUSE:Factory:zSystems/arpack-ng:openmpi1/standard/s390x
• Vignesh mentioned: https://www.fedoraproject.org/wiki/Changes/OstreeNativeContainerStable from Fedora
• Lyz and Dipak to sync up about Debian CI needs

14 February 2023

Attendees

• Elizabeth K. Joseph (IBM)
• Sarah Kriesch (openSUSE)
• Dipak Zope (Debian)
• Dan Horak (Fedora)
• Ulrich Weigand (IBM)
• David Edelsohn (IBM)
• Nikolay Gueorguiev (SUSE)
• Louis Abel (Rocky Linux)

Agenda

• Sarah spoke at FOSDEM
• Video available: https://fosdem.org/2023/schedule/event/open_mainframe_project/
• Good Q&A, connection with CentOS Stream
• Elizabeth is looking forward to working with more in-person events this year, since that’s where we can make connections
• Debian
  • https://lists.debian.org/debian-s390/2023/02/msg00000.html
  • https://lists.debian.org/debian-s390/2023/02/msg00007.html
  • We don’t actually know where/what all the builders are, and where they live, so Elizabeth will dig into that
• Kernel hangs in a backported kernel, fix is in-progress
• CI system email from Paul

10 January 2023

Attendees:

• Sarah Kriesch (openSUSE)
• Dipak Zope (Debian)
• Nikolay Gueorguiev (SUSE)
• Louis Abel (Rocky Linux)
• Daniel Horak (Fedora)
• David Edelsohn (IBM)
• Ulrich Weigand (IBM)
• Mark Post (SUSE)

Excused:

• Elizabeth Joseph (IBM)

Agenda:

• Interviews:
  • Panel discussion video available: Video Interview - Panel Discussion
  • Interview with Elizabeth and Sarah at Open Mainframe Summit: Interview at Open Mainframe Summit
• Sarah is accepted for a presentation in the distributions dev room at FOSDEM on Sunday, 5 February 2023, at 11:00 (Hybrid Conference).
• qore is available for s390x again 
• libcds/firebird: First time, that the build for s390x is successfully, but x86 not (there was a change in package dependencies): firebird build for openSUSE
• x server (x application to x server): Changes required

  • It has to be handled on distro side instead of x86 (virtual graphic card)

  • 
    

    perhaps long term solution with support for virtual gpu (Ulrich will ask)

• frame pointer option enabling (already forwarded and approved with some changes)
  • performance improvement with profiling for everyone
  • Fedora document
  • Mailing list discussion 1
  • Mailing list discussion 2
• Debian has got a new s390x Contributor

15 November 2022

Attendees

• Elizabeth K. Joseph (IBM)
• Sarah Kriesch (openSUSE)
• Dan Horak (Fedora)
• Ulrich Weigand (IBM)
• David Edelsohn (IBM)
• Mark Post (SUSE)
• Nikolay (SUSE)

Agenda

• Administrative
• Renewed for another year
• Video interview later today with Sarah, Ulrich, Lyz
• Red Hat release last week, Fedora this weeks
• .NET 7 is now available, being worked on for RHEL, Fedora, Alpine, and Ubuntu
• No news on the Debian side, just working through typical bugs
• Welcome Nikolay from SUSE to the group, Mark is getting him up to speed.

10 October 2022

Attendees:

• Elizabeth K. Joseph (IBM)
• Sarah Kriesch (openSUSE)
• Dan Horak (Fedora)
• Dipak Zope (Debian)
• David Edelsohn (IBM)
• Mark Post (SUSE)

Agenda:

• The Open Mainframe Summit presentation about this WG is now up at https://www.youtube.com/watch?v=L30SBSYL79Q
• Open Mainframe Project published the following about the group: https://www.openmainframeproject.org/blog/2022/09/22/linux-distribution-working-group
• Mark asked about device interrupts for virtual card readers that were ignored by the kernel, Ulrich notified us that a patch is forthcoming: https://lists.openmainframeproject.org/g/wg-linux-distros/topic/getting_the_kernel_to_handle/93705540
• David asked whether anyone had customer/client implementations or requirements around DPDK, Daniel of Fedora said there may have been a need inside Red Hat around OpenShift, and Sarah had heard of a use case with openSUSE and vlans. David is looking to get movement on more enablement support from IBM.
• Work is continuing on D language support (related to https://lists.openmainframeproject.org/g/wg-linux-distros/topic/d_language_becomes_a/93674866), a bug has been opened by Dan at https://github.com/ldc-developers/ldc/issues/4171
• Folks from Happy Minds Lab are in the queue to receive a VM from L1CC to help with work on Debian

12 September 2022

Attendees:

• Elizabeth K. Joseph (IBM)
• Dan Horak (Fedora)
• Dipak Zope (Debian)
• Louis Abel (Rocky Linux)
• David Edelsohn (IBM)
• Sarah Kriesch (openSUSE)

Agenda:

• Lyz and Sarah are speaking at Open Mainframe Summit about the WG
• Video will be public online in a couple months (registration is required, if anyone wants a discount code, contact Lyz)
• Dipak asked if anyone has ideas of how to go about increasing using base
  • Dan shared that there are people hitting the s390x mirror, so there are users
  • openSUSE is doing that mentoring session at GHC and does other events to help promote

• IBM zDay is coming up, Sarah and Lyz are speaking: https://ibm.biz/ibmzday-2022

8 August 2022

Attendees:

• Elizabeth K. Joseph (IBM)
• Sarah Kriesch (openSUSE)
• Dipak Zope (Debian)
• David Edelsohn (IBM)
• Mark Post (SLES)
• Dan Horak (Fedora)
• Neil Hanlon (Rocky Linux)
• Ulrich Weigand (IBM)

Agenda:

• Events
• Open Mainframe Summit September 21-22
  • Lyz and Sarah presenting on the WG: https://oms2022.sched.com/event/157eY?iframe=no
• Outstanding bugs/issues
• openJDK 17 is integrated with openSUSE, but working to get Open J9 into releases (currently just in tumbleweed, not leap), who will support it now that Open J9 is open source (not a technical issue)? Ulrich will talk to Tomas.
• Mentioned at a previous meeting, and fixed! https://bugs.openjdk.org/browse/JDK-8288128
• Other business
• Rocky Linux 9 is out, had some fixes to do but it’s going well
• Debian is moving along, postgres workaround fix has been explored workaround created for openSUSE, but a real fix for llvm is in the works (hopefully for llvm 16) 
• Fedora 37 is getting ready, no major changes to the toolchain so things are going well
• SLES sp5 in the works, Rancher on zSystems release happened too
• openSUSE zSystems folks will be at the Open Source Day at Grace Hopper in September!

13 June 2022

Attendees

• Sarah Kriesch (openSUSE)
• Elizabeth K. Joseph (IBM)
• Dan Horak (Fedora)
• Ihno Krumreich (openSUSE)
• David Edelsohn (IBM)
• Louis Abel (Rocky Linux)

Agenda:

• Events
• Sarah at openSUSE conference in Nuremberg
• Open Mainframe Summit proposal submitted
• IBM zSystems Day - CFP open, open and/or IBM LinuxONE track, we'll put together a proposal (submit by July 13)
• “changes for secondary ports in Go(lang)” https://lists.openmainframeproject.org/g/wg-linux-distros/message/35
• Lyz will follow up internally at IBM to see if they’re aware of this change
• “OpenJDK needs some attention” https://lists.openmainframeproject.org/g/wg-linux-distros/message/38
• A bug, probably a few hours work to fix, but it does need attention.
• All packages are now building for Rocky Linux on s390x! Release is forthcoming for RL9, things are going well and they’re looking forward to seeing folks use it

9 May 2022

Attendees:

• Sarah Kriesch (openSUSE)
• Rajendra Kharat (Debian)
• David Edelsohn (IBM)
• Elizabeth K. Joseph (IBM)
• Mark Post (SLES)
• Ulrich Weigand (IBM)
• Dipak Zope (Debian)
• Dan Horak (Fedora)

Agenda

• AlmaLinux 9 beta came out with s390x support: https://almalinux.org/blog/almalinux-9-beta-now-available/
• Fedora 36 release is on 10 May
• openSUSE conference coming up in Nürnberg, Germany and Sarah is giving her Collaboration instead of Competition talk: https://events.opensuse.org/conferences/oSC22/program/proposals/3700
• Sarah launched a discussion about additional hardware possibilities, beyond what RHEL, SUSE, and Ubuntu have proposed and are collaborating with IBM on, community input from what the distros are seeing
• If the hardware has $x feature, it may be interesting to see $y business cases realized
• Do new HMCs have optical drives for DVD-based installs? Interesting question for installation / maintenance from the distros.
• Remote desktop xrdp client isn’t building on openSUSE: https://build.opensuse.org/package/live_build_log/openSUSE:Factory:zSystems/xrdp/standard/s390x (the server is fine, which is the more common use case)
• Ulrich checked - upstream claims to support it, a patch went in in March 2021
• FYI Fedora patch: https://src.fedoraproject.org/rpms/xrdp/blob/rawhide/f/xrdp-0.9.16-arch.patch
• Open Mainframe Project CFP: https://events.linuxfoundation.org/open-mainframe-summit/program/cfp/
• Sarah and Lyz will work together on a proposal about the WG and progress being made, due June 10
• If accepted, Lyz will present in person in Philadelphia
• Other upcoming events
• June 2-4: openSUSE conference (Sarah is speaking, see above)
• June 16-18: VM Workshop is in June (CFP already closed)
• August 21-26: SHARE in August (CFP already closed)

11 April 2022

Attendees:

• Sarah Kriesch (openSUSE)
• Rajendra Kharat (Debian)
• David Edelsohn (IBM)
• Elizabeth K. Joseph (IBM)
• Mark Post (SLES)
• Ulrich Weigand (IBM)
• Dipak Zope (Debian)
• Dan Horak (Fedora)
• Louis Abel (Rocky Linux)

Agenda

• Alpine Linux, struggling with rustbuild (https://gitlab.alpinelinux.org/alpine/tsc/-/issues/44), Ulrich and his toolchain team at IBM understand the situation, this is a known issue but wasn’t a priority until now. Tuan Hoang from IBM is a contact here and he is working on this. Someone will update the bug report.
• Debian https://www.debian.org/News/2022/20220326
• Debian needs continued support for their autopkgtest builder, they’re having I/O problems and Lyz will follow-up to make sure they have the right resources.
• Welcome to Rocky Linux participant Lous Abel gave us a quick update - he said they started bootstrapping on the platform this past weekend.

14 March 2022

Attendees:

• Sarah Kriesch
• Rajendra Kharat
• David Edelsohn
• Elizabeth K. Joseph
• Mark Post
• Ulrich Weigand
• Dipak Zope

Agenda:

• llvm 13.0{0,1rc1} on s390x: failed to JIT module: Added modules have incompatible data layouts - https://github.com/llvm/llvm-project/issues/53009
• Including workaround: https://build.opensuse.org/package/view_file/openSUSE:Factory:zSystems/postgresql14/0001-jit-Workaround-potential-datalayout-mismatch-on-s390.patch?expand=1
• Debian configurations to look into

#

# Processor type and features

#

CONFIG_HAVE_MARCH_Z900_FEATURES=y

CONFIG_MARCH_Z900=y

# CONFIG_MARCH_Z990 is not set

# CONFIG_MARCH_Z9_109 is not set

# CONFIG_MARCH_Z10 is not set

# CONFIG_MARCH_Z196 is not set

# CONFIG_MARCH_ZEC12 is not set

# CONFIG_MARCH_Z13 is not set

# CONFIG_MARCH_Z14 is not set

# CONFIG_MARCH_Z15 is not set

CONFIG_MARCH_Z900_TUNE=y

CONFIG_TUNE_DEFAULT=y

# CONFIG_TUNE_Z900 is not set

# CONFIG_TUNE_Z990 is not set

# CONFIG_TUNE_Z9_109 is not set

# CONFIG_TUNE_Z10 is not set

# CONFIG_TUNE_Z196 is not set

# CONFIG_TUNE_ZEC12 is not set

# CONFIG_TUNE_Z13 is not set

# CONFIG_TUNE_Z14 is not set

# CONFIG_TUNE_Z15 is not set

• General discussion: Are there other goals we wish to see for this working group?
  • Group will consider and discuss at next meeting.

14 February 2022

Attendees:

• Elizabeth K. Joseph
• Sarah Kriesch
• Mark Post
• David Edelsohn
• Frank Heimes
• Ulrich Weigand
• Dipak Zope

Agenda:

• Welcome and introductions
• FOSDEM talk by Sarah, recording and slides: https://fosdem.org/2022/schedule/event/collaboration_instead_of_competition/
  • Others are welcome to give talks! Just keep us all in the loop so the Open Mainframe Project can help support and promote the talks.
• Bugs across distributions:
  • https://bugzilla.opensuse.org/show_bug.cgi?id=1193889 from OpenSUSE bug tracker, but there’s one internally to IBM (for those who have access) https://bugzilla.linux.ibm.com/show_bug.cgi?id=196109
  • Debian installer issue with different glibc version than currently ships, related error
    • Jan 23 06:16:24 s390-zfcp[3825]: WARNING **: Could not open directory: /sys/bus/ccw/drivers/zfcp/: No such file or directory
      Jan 23 07:00:20 main-menu[347]: (process:3632): unknown udeb mmc-modules
      Jan 23 07:00:20 main-menu[347]: (process:3632): parted_devices: /lib/s390x-linux-gnu/libc.so.6: version `GLIBC_2.33' not found (required by /lib/libparted.so.2)
    • Look into the public Debian build system? And folks handling that. Also folks working on D-I in general.
    • Lyz and Dipak will look into where in Debian they need to dig in more to get required builds for s390x updated.
  • LLVM compile issues with Postgres
    • https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1002029
    • https://github.com/llvm/llvm-project/issues/53009
    • Likely related from openSUSE (w/ RHEL patch): https://build.opensuse.org/package/view_file/openSUSE:Factory:zSystems/postgresql14/0001-jit-Workaround-potential-datalayout-mismatch-on-s390.patch?expand=1
  • New instructions are being added to QMU by some efforts driven by IBM, but there are some issues with KVM & LLVM (wasn't able to capture more details here, can someone else fill in?)
    

10 January 2022

Attendees:

• Elizabeth K. Joseph
• Sarah Kriesch
• Ihno Krumreich
• Divya Goswami
• Rajendra Kharat
• Ulrich Weigand
• David Edelsohn
• Dipak Zope

Agenda:

• Welcome and Introductions
• Any other business

Notes:

All project resources are listed at https://wiki.openmainframeproject.org/display/LinuxDistrosWG

Introductions

Fedora is invited - confirmed

Invite Alpine to collaborate

Sarah is presenting at FOSDEM on LoZ, she will email the list when the schedule is live

Debian folks are working on d-i issues, currently struggling with some disk utilities, trying to bypass the GPG signing in d-i for development, Elizabeth will put them in touch with the Ubuntu folks to see if they know

Sarah mentioned that openSUSE is working on an installer issue with packages getting installed, but after the restart it to finish the installer (bootloader, etc) there is a problem.

David mentioned a systemd crash problem on Fedora Rawhide (https://bugzilla.redhat.com/show_bug.cgi?id=1986176) - maybe related to the openSUSE problem? Sarah will look into their systemd situation.