[Bug 2075491] Comment bridged from LTC Bugzilla

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--- Comment From jonas.paulss...@ibm.com 2024-09-18 11:53 EDT---
Thanks for the report and suggested patch. I have continued on this here: 
https://github.com/llvm/llvm-project/pull/109164

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Title:
  binary16 float-point arithmetic crashes LLVM on s390x

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[Bug 2062119] Re: libtracefs autopkgtests fail on ppc64el

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** Tags added: architecture-ppc64le bugnameltc-209029 severity-medium
targetmilestone-inin---

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Title:
  libtracefs autopkgtests fail on ppc64el

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[Bug 2064530] Comment bridged from LTC Bugzilla

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--- Comment From jan...@us.ibm.com 2024-09-13 09:42 EDT---
That's great! Thanks!

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Title:
  Include support for .NET 8 for Ubuntu on Power

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[Bug 2078347] Comment bridged from LTC Bugzilla

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--- Comment From mete.du...@ibm.com 2024-09-12 07:23 EDT---
Hi,

any outlook on this issue?

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Title:
  [UBUNTU 24.04] Udev/rules: Missing rules causes newly added CPUs to
  stay offline

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[Bug 2080474] Installer logs

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Default Comment by Bridge

** Attachment added: "Installer logs"
   
https://bugs.launchpad.net/bugs/2080474/+attachment/5816073/+files/installer.tar.gz

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Title:
  ubuntu installation failing for systems having SAN disk

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[Bug 2080474] Installer crash logs from /var/crash

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** Attachment added: "Installer crash logs from /var/crash"
   
https://bugs.launchpad.net/bugs/2080474/+attachment/5816074/+files/crash.tar.gz

** Changed in: ubuntu
 Assignee: (unassigned) => Ubuntu on IBM Power Systems Bug Triage 
(ubuntu-power-triage)

** Package changed: ubuntu => linux (Ubuntu)

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Title:
  ubuntu installation failing for systems having SAN disk

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[Bug 2080474] [NEW] ubuntu installation failing for systems having SAN disk

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Public bug reported:

== Comment: - Anushree Mathur ==
OS: 24.04 LTS (Noble Numbat)
I started the Ubuntu installation for 24.04 LTS (Noble Numbat) on L1(HOST) 
having SAN disk, it failed with the following error just after I chose the disk.

Ubuntu 24.04 LTS ubuntu-server hvc0


connecting...  
waiting for cloud-init...  
generating crash report
report saved to /var/crash/1724388235.797082424.ui.crash
Traceback (most recent call last):
  File 
"/snap/subiquity/5745/lib/python3.10/site-packages/subiquity/client/controllers/filesystem.py",
 line 273, in _guided_choice
self.ui.set_body(FilesystemView(self.model, self))
  File 
"/snap/subiquity/5745/lib/python3.10/site-packages/subiquity/ui/views/filesystem/filesystem.py",
 line 485, in __init__
self.refresh_model_inputs()
  File 
"/snap/subiquity/5745/lib/python3.10/site-packages/subiquity/ui/views/filesystem/filesystem.py",
 line 540, in refresh_model_inputs
self.avail_list.refresh_model_inputs()
  File 
"/snap/subiquity/5745/lib/python3.10/site-packages/subiquity/ui/views/filesystem/filesystem.py",
 line 417, in refresh_model_inputs
for obj, cells in summarize_device(device, filter):
  File 
"/snap/subiquity/5745/lib/python3.10/site-packages/subiquity/ui/views/filesystem/helpers.py",
 line 32, in summarize_device
anns = labels.annotations(device) + labels.usage_labels(device)
  File "/snap/subiquity/5745/usr/lib/python3.10/functools.py", line 889, in 
wrapper
return dispatch(args[0].__class__)(*args, **kw)
  File 
"/snap/subiquity/5745/lib/python3.10/site-packages/subiquity/common/filesystem/labels.py",
 line 100, in _annotations_vg
member = next(iter(vg.devices))
StopIteration

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/snap/subiquity/5745/usr/bin/subiquity", line 8, in 
sys.exit(main())
  File 
"/snap/subiquity/5745/lib/python3.10/site-packages/subiquity/cmd/tui.py", line 
158, in main
asyncio.run(run_with_loop())
  File "/snap/subiquity/5745/usr/lib/python3.10/asyncio/runners.py", line 44, 
in run
return loop.run_until_complete(main)
  File "/snap/subiquity/5745/usr/lib/python3.10/asyncio/base_events.py", line 
649, in run_until_complete
return future.result()
  File 
"/snap/subiquity/5745/lib/python3.10/site-packages/subiquity/cmd/tui.py", line 
156, in run_with_loop
await subiquity_interface.run()
  File 
"/snap/subiquity/5745/lib/python3.10/site-packages/subiquity/client/client.py", 
line 403, in run
await super().run()
  File 
"/snap/subiquity/5745/lib/python3.10/site-packages/subiquitycore/tui.py", line 
351, in run
await super().run()
  File 
"/snap/subiquity/5745/lib/python3.10/site-packages/subiquitycore/core.py", line 
134, in run
raise exc
RuntimeError: coroutine raised StopIteration

Ubuntu 24.04 LTS ubuntu-server hvc0


connecting...  
ProblemType: Bug
Architecture: ppc64el
CrashDB: {'impl': 'launchpad', 'project': 'subiquity'}

I tried following 2 installation methods, it is failing in both the ways: 
1) kexec method
2) attaching vdvd and starting installer

NOTE: It is happening only when the system has SAN disks otherwise this 
installation worked fine.
I will be attaching the crash report for this!

== Comment:- Hariharan T S ==
Verified the following cases. 
Installation on Disk from VIOS  - PASSED
Installatoin on Disk from VIOS and system had Disks from SAN - FAILED
Installation on Disk from SAN and system ahd Disk from VIOS - FAILED

== Comment:- Vaibhav Jain ==
Problem seems to happening when Subuquity enters the disk partition view. The 
system has a SAN disk and an existing Mullti Path DM volume on it.

Mirroring to distro

** Affects: linux (Ubuntu)
 Importance: Undecided
 Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage)
 Status: New


** Tags: architecture-ppc64le bugnameltc-208604 severity-high 
targetmilestone-inin---

** Tags added: architecture-ppc64le bugnameltc-208604 severity-high
targetmilestone-inin---

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Title:
  ubuntu installation failing for systems having SAN disk

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[Bug 2076587] guest xml for cpu hotplug test

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--- Comment on attachment From anushree.math...@ibm.com 2024-09-11 04:14 
EDT---


Hi fheimes,
Yes i agree, these all bugs are same!
I have validated on my system by updating the system with "apt upgrade" and the 
qemu version is updating with having the fix included in it.

qemu-system-ppc64 -version
QEMU emulator version 8.2.2 (Debian 1:8.2.2+ds-0ubuntu1.3~ppa1)
Copyright (c) 2003-2023 Fabrice Bellard and the QEMU Project developers

Attaching the guest xml for future references!

Thanks
Anushree Mathur

** Attachment added: "guest xml for cpu hotplug test"
   https://bugs.launchpad.net/bugs/2076587/+attachment/5815560/+files/check.xml

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Title:
  cpu hotplug crashes the guest!

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[Bug 2073372] Comment bridged from LTC Bugzilla

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--- Comment From s...@de.ibm.com 2024-09-10 07:37 EDT---
FYI: The testcase is now also upstream with commit:
commit "Enhanced test coverage for strncmp, wcsncmp" (Florian Weimer; 
2024-08-01)
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=54252394c25ddf0062e288d4a6ab7a885f8ae009

Note: The testcase is only executed with make xcheck.

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Title:
  [UBUNTU 20.04] s390x: z13 wcsncmp implementation segfaults if n=1

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[Bug 1959940] Comment bridged from LTC Bugzilla

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--- Comment From fran...@de.ibm.com 2024-09-09 10:11 EDT---
Verified with 5.15.0-118-generic #128~lp1959940-Ubuntu  and  QEMU 
1:6.2+dfsg-2ubuntu6.23~ppa4
Also tested the pause fix.

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Title:
  [22.10 FEAT] KVM: Secure Execution guest dump encryption with customer
  keys - kernel part

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[Bug 1959966] Comment bridged from LTC Bugzilla

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--- Comment From fran...@de.ibm.com 2024-09-09 10:11 EDT---
Verified with 5.15.0-118-generic #128~lp1959940-Ubuntu  and  QEMU 
1:6.2+dfsg-2ubuntu6.23~ppa4
Also tested the pause fix.

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Title:
  [23.04 FEAT] KVM: Secure Execution guest dump encryption with customer
  keys - qemu part

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[Bug 2076587] Comment bridged from LTC Bugzilla

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--- Comment From anushree.math...@ibm.com 2024-09-06 02:50 EDT---
Hi sergiodj,
Thanks for the update. I have validated the patch now and it is working fine.

Analysis:
~# qemu-system-ppc64 --version
QEMU emulator version 8.2.2 (Debian 1:8.2.2+ds-0ubuntu1.3~ppa1)
Copyright (c) 2003-2023 Fabrice Bellard and the QEMU Project developers

~# virsh setvcpus check_hotplug 700
error: internal error: unable to execute QEMU command 'device_add': 
kvmppc_cpu_realize: vcpu hotplug failed with -12

L2 keeps running!

Thanks
Anushree Mathur

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Title:
  cpu hotplug crashes the guest!

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[Bug 2044104] Comment bridged from LTC Bugzilla

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--- Comment From mario.h...@de.ibm.com 2024-09-05 04:23 EDT---
The problem seems fixed meanwhile for Oracular (24.10) see here 
https://launchpad.net/ubuntu/+source/s390-tools
Are you thinking of backports for the LTS releases 22.04 and 20.04 ?

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Title:
  [UBUNTU 20.04] chzdev -e is rebuilding initramfs even with
  zdev:early=0 set

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[Bug 2077540] Re: [24.10] Please test secure-boot and lockdown on the 6.11 kernel (s390x) for Oracular

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** Tags removed: targetmilestone-inin---
** Tags added: targetmilestone-inin2410

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Title:
   [24.10] Please test secure-boot and lockdown on the 6.11 kernel
  (s390x) for Oracular

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[Bug 2076587] Comment bridged from LTC Bugzilla

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--- Comment From anushree.math...@ibm.com 2024-09-03 04:19 EDT---
Hi sergiodj,
I tried validating the qemu package available at provided location : 
https://launchpad.net/~sergiodj/+archive/ubuntu/qemu-bug2076587
However the issue is still seen and i do not see the fix patches in the diff 
available at above package location.
http://launchpadlibrarian.net/745431988/qemu_1%3A8.2.1+ds-1ubuntu1_1%3A8.2.2+ds-0ubuntu1.2.diff.gz

Could you please provide updated package with the backport fixes
provided!

Thanks
Anushree Mathur

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  cpu hotplug crashes the guest!

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[Bug 1959940] Comment bridged from LTC Bugzilla

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--- Comment From fran...@de.ibm.com 2024-09-02 03:03 EDT---
The conflicts were due to the backported PCI support and cap numbers.
I.e. there were only git conflicts and I didn't change code.

I'll test the kernel next week.

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Title:
  [22.10 FEAT] KVM: Secure Execution guest dump encryption with customer
  keys - kernel part

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[Bug 2076587] Comment bridged from LTC Bugzilla

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--- Comment From anushree.math...@ibm.com 2024-08-30 02:58 EDT---
Due to lesser systems availability i was not able to test this patch, will be 
doing it by today evening and update the bugzilla!

Sorry for the delay!

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  cpu hotplug crashes the guest!

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[Bug 2078347] [NEW] [UBUNTU 24.04] Udev/rules: Missing rules causes newly added CPUs to stay offline

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Public bug reported:

---Problem 
Description--
Adding a configured CPU to a system (LPAR, ZVM or KVM) leaves that CPU 
configured but hotplugged off.

# lscpu -e
CPU NODE DRAWER BOOK SOCKET CORE L1d:L1i:L2 ONLINE CONFIGURED POLARIZATION 
ADDRESS
  00  00  00 0:0:0 yes yeshorizontal   0
  10  00  11 1:1:1 yes yeshorizontal   1
  20  00  22 2:2:2 yes yeshorizontal   2
  30  00  33 3:3:3 yes yeshorizontal   3
  40  00  44 4:4:4 yes yeshorizontal   4
  50  00  55 5:5:5 yes yeshorizontal   5
  6-  --  -- -  no yeshorizontal   6
  7-  --  -- -  no yeshorizontal   7
 
---Debugger---
A debugger is not configured
 
Machine Type = z/VM, LPAR 
 
---uname output---
6.8.0-41-generic #41-Ubuntu SMP Fri Aug  2 19:51:49 UTC 2024 s390x s390x s390x 
GNU/Linux
 
---Steps to Reproduce---
Easiest way to reproduce is using a KVM guest to add new CPUs.

1. Before adding CPUs:

$ virsh dumpxml vm

   ...
  8
  









2. Attempt to add CPUs to the guest in a "running" state. 
$ virsh setvcpus vm 8 --live

3. The guest XML is updated :
   ...
  8
  








  

4. But inside the guest, the CPUs are in offline state:
$ lscpu -e
CPU NODE DRAWER BOOK SOCKET CORE L1d:L1i:L2 ONLINE CONFIGURED POLARIZATION 
ADDRESS
  00  00  00 0:0:0 yes yeshorizontal   0
  10  00  11 1:1:1 yes yeshorizontal   1
  20  00  22 2:2:2 yes yeshorizontal   2
  30  00  33 3:3:3 yes yeshorizontal   3
  40  00  44 4:4:4 yes yeshorizontal   4
  50  00  55 5:5:5 yes yeshorizontal   5
  6-  --  -- -  no yeshorizontal   6
  7-  --  -- -  no yeshorizontal   7

5. Post rebooting the guest, the CPUs are  online:
$ virsh reboot vm

Inside the guest:
$ lscpu -e
CPU NODE DRAWER BOOK SOCKET CORE L1d:L1i:L2 ONLINE CONFIGURED POLARIZATION 
ADDRESS
  00  00  00 0:0:0 yes yeshorizontal   0
  10  00  11 1:1:1 yes yeshorizontal   1
  20  00  22 2:2:2 yes yeshorizontal   2
  30  00  33 3:3:3 yes yeshorizontal   3
  40  00  44 4:4:4 yes yeshorizontal   4
  50  00  55 5:5:5 yes yeshorizontal   5
  60  00  66 6:6:6 yes yeshorizontal   6
  70  00  77 7:7:7 yes yeshorizontal   7

The CPUs should be online after adding them to the system.

Other distros already have a udev rule to circumvent this under;
/etc/udev/rules.d/

The rule does a check if a newly added CPUs are configured but not online, then 
hotplugs it to make it online. If CPUs are NOT configured then they should stay 
offline.
 
Contact Information = mete.du...@ibm.com

** Affects: linux (Ubuntu)
 Importance: Undecided
 Assignee: Skipper Bug Screeners (skipper-screen-team)
 Status: New


** Tags: architecture-s39064 bugnameltc-208728 severity-low 
targetmilestone-inin---

** Tags added: architecture-s39064 bugnameltc-208728 severity-low
targetmilestone-inin---

** Changed in: ubuntu
 Assignee: (unassigned) => Skipper Bug Screeners (skipper-screen-team)

** Package changed: ubuntu => linux (Ubuntu)

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Title:
  [UBUNTU 24.04] Udev/rules: Missing rules causes newly added CPUs to
  stay offline

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[Bug 2070358] Comment bridged from LTC Bugzilla

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--- Comment From tasmiya.nalat...@ibm.com 2024-08-28 01:56 EDT---
Hi Jamie,
I have tested the issue on ubuntu 6.8.0-43-generic. The issue is not 
reproducible. sosreport is captured as expected.

--- uname -a ---
Linux ltcden6-lp4 6.8.0-43-generic #43-Ubuntu SMP Fri Aug  2 19:46:18 UTC 2024 
ppc64le ppc64le ppc64le GNU/Linux

--- cat /etc/os-release ---
PRETTY_NAME="Ubuntu 24.04 LTS"
NAME="Ubuntu"
VERSION_ID="24.04"
VERSION="24.04 LTS (Noble Numbat)"
VERSION_CODENAME=noble
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/";
SUPPORT_URL="https://help.ubuntu.com/";
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/";
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy";
UBUNTU_CODENAME=noble
LOGO=ubuntu-logo

--- sosreport ---
root@ltcden6-lp4:~# sosreport
Please note the 'sosreport' command has been deprecated in favor of the new 
'sos' command, E.G. 'sos report'.
Redirecting to 'sos report '

sosreport (version 4.5.6)

This command will collect system configuration and diagnostic
information from this Ubuntu system.

For more information on Canonical visit:

Community Website  : https://www.ubuntu.com/
Commercial Support : https://www.canonical.com

The generated archive may contain data considered sensitive and its
content should be reviewed by the originating organization before being
passed to any third party.

No changes will be made to system configuration.

Press ENTER to continue, or CTRL-C to quit.

Optionally, please enter the case id that you are generating this report
for []:

Setting up archive ...
Setting up plugins ...
[plugin:lxd] skipped command 'lxc image list': required kmods missing: 
ip6table_mangle, iptable_mangle, iptable_raw, ip6table_raw, ebtable_filter, 
ebtables, ip6table_filter, iptable_nat, ip6_tables, iptable_filter, bpfilter, 
ip6table_nat.
[plugin:lxd] skipped command 'lxc list': required kmods missing: 
ip6table_mangle, iptable_mangle, iptable_raw, ip6table_raw, ebtable_filter, 
ebtables, ip6table_filter, iptable_nat, ip6_tables, iptable_filter, bpfilter, 
ip6table_nat.
[plugin:lxd] skipped command 'lxc network list': required kmods missing: 
ip6table_mangle, iptable_mangle, iptable_raw, ip6table_raw, ebtable_filter, 
ebtables, ip6table_filter, iptable_nat, ip6_tables, iptable_filter, bpfilter, 
ip6table_nat.
[plugin:lxd] skipped command 'lxc profile list': required kmods missing: 
ip6table_mangle, iptable_mangle, iptable_raw, ip6table_raw, ebtable_filter, 
ebtables, ip6table_filter, iptable_nat, ip6_tables, iptable_filter, bpfilter, 
ip6table_nat.
[plugin:lxd] skipped command 'lxc storage list': required kmods missing: 
ip6table_mangle, iptable_mangle, iptable_raw, ip6table_raw, ebtable_filter, 
ebtables, ip6table_filter, iptable_nat, ip6_tables, iptable_filter, bpfilter, 
ip6table_nat.
[plugin:networking] skipped command 'ip -s macsec show': required kmods 
missing: macsec.   Use '--allow-system-changes' to enable collection.
[plugin:networking] skipped command 'ss -peaonmi': required kmods missing: 
netlink_diag, xsk_diag, af_packet_diag, unix_diag, udp_diag, inet_diag, 
tcp_diag.   Use '--allow-system-changes' to enable collection.
[plugin:ufw] skipped command 'ufw status numbered': required kmods missing: 
iptable_filter, bpfilter.
[plugin:ufw] skipped command 'ufw app list': required kmods missing: 
iptable_filter, bpfilter.
Running plugins. Please wait ...

Finishing plugins  [Running: systemd]
Finished running plugins
Creating compressed archive...

Your sosreport has been generated and saved in:
/tmp/sosreport-ltcden6-lp4-2024-08-28-yxhnnsj.tar.xz

Size4.04MiB
Owner   root
sha256  0b8893c12c9690faac38bb0c2133d213fd7bde97e84c8e7c3cc396d70ff6962e

Please send this file to your support representative.

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Title:
  [Ubuntu 24.04] FW1060.00 (NH1060_026) sosreport is running to Kernel
  OOPS crash

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[Bug 2064538] Re: Revert back frame pointers for s390x (remove -fno-omit-frame-pointer but use -mbackchain)

[bugproxy]

--- Comment From boris.m...@de.ibm.com 2024-08-26 10:56 EDT---
Fix was released to 24.04 (Noble). Therefore, we can close the bug.

Thanks everyone for your work!

==> Changing status to: "CLOSED"

** Tags removed: targetmilestone-inin---
** Tags added: targetmilestone-inin2404

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Title:
  Revert back frame pointers for s390x (remove -fno-omit-frame-pointer
  but use -mbackchain)

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[Bug 2077540] Comment bridged from LTC Bugzilla

[bugproxy]

--- Comment From grgo.mari...@ibm.com 2024-08-23 06:09 EDT---
We installed from ppa:canonical-kernel-team/unstable:
# cat /etc/os-release
PRETTY_NAME="Ubuntu Oracular Oriole (development branch)"
NAME="Ubuntu"
VERSION_ID="24.10"
VERSION="24.10 (Oracular Oriole)"
VERSION_CODENAME=oracular
...
...
# apt search linux-image-6.11
linux-image-6.11.0-4-generic/oracular,now 6.11.0-4.4 s390x [installed,automatic]
Signed kernel image generic
# uname -r
6.11.0-4-generic
# grep [0-9] /sys/firmware/ipl/*sec*
/sys/firmware/ipl/has_secure:1
/sys/firmware/ipl/secure:0

# ls -l /boot/vmlinuz /boot/initrd.img
lrwxrwxrwx 1 root root 27 Aug 23 09:08 /boot/initrd.img -> 
initrd.img-6.11.0-4-generic
lrwxrwxrwx 1 root root 24 Aug 23 09:08 /boot/vmlinuz -> vmlinuz-6.11.0-4-generic

load with kernel vmlinuz-6.11.0-4-generic
- without secure boot enable
- without adding the signature

IPB received.
IPB sent.
System version 9.
Watchdog enabled.
Running 'ZBootLoader' version '3.3.5' level 'D51C.D51C_328.24'.
--- Audit message summary start ---
MLOLOA62693210 Audit: Signature verification failure for component 3 in program
0 loaded from device HBA:0.0.1900,WWPN:500507630700572C,LUN:4051402C.
MLOLOA62693210 Audit: Signature verification failure for component 5 in program
0 loaded from device HBA:0.0.1900,WWPN:500507630700572C,LUN:4051402C.
--- Audit message summary end ---
OK Success

load with kernel vmlinuz-6.11.0-4-generic
- with secure boot enable
- without adding the signature

IPB received.
IPB sent.
System version 9.
Watchdog enabled.
Running 'ZBootLoader' version '3.3.5' level 'D51C.D51C_328.24'.
--- Audit message summary start ---
MLOLOA62693210 Audit: Signature verification failure for component 3 in program
0 loaded from device HBA:0.0.1900,WWPN:500507630700572C,LUN:4051402C.
MLOLOA62693210 Audit: Signature verification failure for component 5 in program
0 loaded from device HBA:0.0.1900,WWPN:500507630700572C,LUN:4051402C.
--- Audit message summary end ---
MLOLOA6269321F A security violation error was encountered when loading from devi
ce HBA:0.0.1900,WWPN:500507630700572C,LUN:4051402C.
IPL failed (110).

load with kernel vmlinuz-6.11.0-4-generic
- with secure boot enable
- with adding the signature

IPB received.
IPB sent.
System version 9.
Watchdog enabled.
Running 'ZBootLoader' version '3.3.5' level 'D51C.D51C_328.24'.
OK Success
[0.078590] Linux version 6.11.0-4-generic (buildd@bos02-s390x-011) 
(s390x-linux-gnu-gcc-14 (Ubuntu 14.2.0-3ubuntu1) 14.2.0, GNU ld (GNU Binutils 
for Ubuntu) 2.43.1) #4-Ubuntu SMP Tue Aug 20 14:03:40 UTC 2024 (Ubuntu 
6.11.0-4.4-generic 6.11.0-rc4)
[0.078592] setup: Linux is running natively in 64-bit mode
[0.078593] setup: Linux is running with Secure-IPL enabled
[0.078593] setup: The IPL report contains the following components:
[0.078594] setup: 2000 - 6000 (not signed)
[0.078596] setup: 9000 - 9200 (not signed)
[0.078597] setup: a000 - e000 (signed, verified)
[0.078598] setup: f000 - 0001 (not signed)
[0.078599] setup: 0001 - 00a0b000 (signed, verified)
[0.078601] setup: 00a0c000 - 00a0c200 (not signed)
[0.078602] setup: 00a1c000 - 00a1d000 (not signed)
[0.078603] setup: 00a2 - 022dcc00 (not signed)
[0.078604] Kernel is locked down from Secure IPL mode; see man 
kernel_lockdown.7

After secure boot load
# grep [0-9] /sys/firmware/ipl/*sec*
/sys/firmware/ipl/has_secure:1
/sys/firmware/ipl/secure:1

we used these Certificate:
# openssl x509 -text -in sipl1.x509
Certificate:
Data:
Version: 3 (0x2)
Serial Number:
a1:b6:a0:75:09:df:f4:18
Signature Algorithm: sha512WithRSAEncryption
Issuer: CN = PPA canonical-kernel-team unstable SIPL
Validity
Not Before: Aug 23 20:47:25 2019 GMT
Not After : Aug 20 20:47:25 2029 GMT
Subject: CN = PPA canonical-kernel-team unstable SIPL
...
...
# openssl x509 -text -in sipl2.x509
Certificate:
Data:
Version: 3 (0x2)
Serial Number:
ee:61:db:02:41:ef:d1:06
Signature Algorithm: sha512WithRSAEncryption
Issuer: C = GB, ST = Isle of Man, L = Douglas, O = Canonical Ltd., OU = Secure 
Boot, CN = "Canonical Ltd. Secure Boot Signing (ZIPL, 2019)"
Validity
Not Before: May 16 13:50:05 2019 GMT
Not After : May 14 13:50:05 2049 GMT
Subject: C = GB, ST = Isle of Man, L = Douglas, O = Canonical Ltd., OU = Secure 
Boot, CN = "Canonical Ltd. Secure Boot Signing (ZIPL, 2019)"
..

this was tested on our Z16 machine

No problems detected. Secure boot works as expected.

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Title:
   [24.10] Please test secure-boot and lockdown on the 6.11 kernel
  (s390x) for Oracular

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[Bug 2077722] Run 3: L2-1 guest full console.log

[bugproxy]

Default Comment by Bridge

** Attachment added: "Run 3: L2-1 guest full console.log"
   
https://bugs.launchpad.net/bugs/2077722/+attachment/5808583/+files/Run3-guest1-console.log

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Title:
  [Ubuntu 24.04] MultiVM - L2 guest(s) running stress-ng getting stuck
  at booting after triggering crash

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[Bug 2077722] stress-ng script for 90% load

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Default Comment by Bridge

** Attachment added: "stress-ng script for 90% load"
   
https://bugs.launchpad.net/bugs/2077722/+attachment/5808585/+files/stress-ng.sh

** Changed in: ubuntu
 Assignee: (unassigned) => Ubuntu on IBM Power Systems Bug Triage 
(ubuntu-power-triage)

** Package changed: ubuntu => kernel-package (Ubuntu)

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Title:
  [Ubuntu 24.04] MultiVM - L2 guest(s) running stress-ng getting stuck
  at booting after triggering crash

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[Bug 2077722] Run 3: L2-2 guest full console.log

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Default Comment by Bridge

** Attachment added: "Run 3: L2-2 guest full console.log"
   
https://bugs.launchpad.net/bugs/2077722/+attachment/5808584/+files/Run3-guest2-console.log

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Title:
  [Ubuntu 24.04] MultiVM - L2 guest(s) running stress-ng getting stuck
  at booting after triggering crash

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[Bug 2077722] Run 1: L2-1 guest full console.log

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Default Comment by Bridge

** Attachment added: "Run 1: L2-1 guest full console.log"
   
https://bugs.launchpad.net/bugs/2077722/+attachment/5808582/+files/Run1-guest1-console.log

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Title:
  [Ubuntu 24.04] MultiVM - L2 guest(s) running stress-ng getting stuck
  at booting after triggering crash

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[Bug 2077722] [NEW] [Ubuntu 24.04] MultiVM - L2 guest(s) running stress-ng getting stuck at booting after triggering crash

[bugproxy]

Public bug reported:

Problem:
While bringing up 2 Ubuntu 24.04 guests and running stress-ng (90% load) on 
both and triggering crash simultaneously, 1st guest gets stuck and does not 
boot up. In one of the attempts, both the guests got stuck on booting with 
console hang. 

Attempts:
Reproducible 3/3 consecutive times
Run 1: L2-1 guest got stuck 
Run 2: L2-1 guest got stuck
Run 3: L2-1 and L2-2 guest got stuck


=
L1 Host:
1. PowerVM
2. OS: Ubuntu 24.04
3. Kernel: 6.8.0-31-generic
4. Mem (free -mh): 47Gi
5. cpus: 40

Guest L2-1:
1. OS: Ubuntu 24.04
2. Kernel: 6.8.0-31-generic
3. Mem (free -mh): 9.5Gi
4. cpus: 8
5. Stress: stress-ng - 90% load
6. XML configuration:
   16
   10971520
   

Guest L2-2:
1. OS: Ubuntu 24.04
2. Kernel: 6.8.0-31-generic
3. Mem (free -mh): 9.5Gi
4. cpus: 8
5. Stress: stress-ng - 90% load
6. XML configuration:
   16
   10971520
   


=
Steps to reproduce:
1. Bring up 2 Ubuntu 24.04 L2 guests with configuration mentioned as above
2. Run the attached stress-ng.sh script on both L2 guests
3. Trigger crash: echo c >/proc/sysrq-trigger on both L2 guests at the same time

After triggering the crash, 1 or both guest consoles will get stuck. And
then, we will not be able to enter the guest neither shut it down. In
oder to boot into the guest, virsh destroy of the guest will be
required.


=
Run1: Console.log Error message of L2-1
  Booting `Ubuntu'

Loading Linux 6.8.0-31-generic ...
Loading initial ramdisk ...
OF stdout device is: /vdevice/vty@3000
Preparing to boot Linux version 6.8.0-31-generic (buildd@bos02-ppc64el-018) 
(powerpc64le-linux-gnu-gcc-13 (Ubuntu 13.2.0-23ubuntu4) 13.2.0, GNU ld (GNU 
Binutils for Ubuntu) 2.42) #31-Ubuntu SMP Sat Apr 20 00:05:55 UTC 2024 (Ubuntu 
6.8.0-31.31-generic 6.8.1)
Detected machine type: 0101
command line: BOOT_IMAGE=/vmlinux-6.8.0-31-generic 
root=/dev/mapper/ubuntu--vg-ubuntu--lv ro 
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
Max number of cores passed to firmware: 1024 (NR_CPUS = 2048)
Calling ibm,client-architecture-support... done
memory layout at init:
  memory_limit :  (16 MB aligned)
  alloc_bottom : 09d7
  alloc_top: 3000
  alloc_top_hi : 0002a000
  rmo_top  : 3000
  ram_top  : 0002a000
instantiating rtas at 0x2fff... done
prom_hold_cpus: skipped
copying OF device tree...
Building dt strings...
Building dt structure...
Device tree strings 0x09d8 -> 0x09d80bc6
Device tree struct  0x09d9 -> 0x09da
Quiescing Open Firmware ...
Booting Linux via __start() @ 0x0023 ...
[0.00] random: crng init done
[0.00] Reserving 512MB of memory at 512MB for crashkernel (System RAM: 
10752MB)
[0.00] radix-mmu: Page sizes from device-tree:
[0.00] radix-mmu: Page size shift = 12 AP=0x0
[0.00] radix-mmu: Page size shift = 16 AP=0x5
[0.00] radix-mmu: Page size shift = 21 AP=0x1
[0.00] radix-mmu: Page size shift = 30 AP=0x2
[0.00] Activating Kernel Userspace Access Prevention
[0.00] Activating Kernel Userspace Execution Prevention
[0.00] radix-mmu: Mapped 0x-0x038a with 
64.0 KiB pages (exec)
[0.00] radix-mmu: Mapped 0x038a-0x0002a000 with 
64.0 KiB pages
[0.00] lpar: Using radix MMU under hypervisor
[0.00] Linux version 6.8.0-31-generic (buildd@bos02-ppc64el-018) 
(powerpc64le-linux-gnu-gcc-13 (Ubuntu 13.2.0-23ubuntu4) 13.2.0, GNU ld (GNU 
Binutils for Ubuntu) 2.42) #31-Ubuntu SMP Sat Apr 20 00:05:55 UTC 2024 (Ubuntu 
6.8.0-31.31-generic 6.8.1)
[0.00] Secure boot mode disabled
[0.00] Found initrd at 0xc620:0xc9d6da29
[0.00] Hardware name: IBM pSeries (emulated by qemu) POWER10 (raw) 
0x800200 0xf06 of:SLOF,HEAD hv:linux,kvm pSeries
[0.00] printk: legacy bootconsole [udbg0] enabled
[0.00] Partition configured for 16 cpus.
[0.00] CPU maps initialized for 2 threads per core
[0.00] numa: Partition configured for 1 NUMA nodes.
[0.00] -
[0.00] phys_mem_size = 0x2a000
[0.00] dcache_bsize  = 0x80
[0.00] icache_bsize  = 0x80
[0.00] cpu_features  = 0x001400eb8f5f9187
[0.00]   possible= 0x001ffbfbcf5fb187
[0.00]   always  = 0x000380008181
[0.00] cpu_user_features = 0xdc0065c2 0xaef6
[0.00] mmu_features  = 0x3c007641
[0.00] firmware_features = 0x0a85455a445f
[0.00] vmalloc start = 0xc008
[0.00] IO start  = 0xc00a
[0.00] vmemmap

[Bug 2077540] Re: [24.10] Please test secure-boot and lockdown on the 6.11 kernel (s390x) for Oracular

[bugproxy]

** Tags added: architecture-s39064 bugnameltc-208603 severity-high
targetmilestone-inin---

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Title:
   [24.10] Please test secure-boot and lockdown on the 6.11 kernel
  (s390x) for Oracular

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[Bug 1959966] Comment bridged from LTC Bugzilla

[bugproxy]

--- Comment From fran...@de.ibm.com 2024-08-22 09:50 EDT---
The provided package works without a problem and I've verified that the guest 
keeps on running when dumping to a file system that's smaller than the dump 
size.

I've used the patches that I've attached to the kernel bug to add the
feature to KVM and built s390-tools from the latest git since there's no
backport yet for 22.04.

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Title:
  [23.04 FEAT] KVM: Secure Execution guest dump encryption with customer
  keys - qemu part

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[Bug 1959940] SE dump patches

[bugproxy]

--- Comment on attachment From fran...@de.ibm.com 2024-08-22 09:47 
EDT---


Based on bab1bf6d2347 (origin/master-next) cgroup/cpuset: Optimize 
cpuset_attach() on v2

** Attachment added: "SE dump patches"
   
https://bugs.launchpad.net/bugs/1959940/+attachment/5808048/+files/se_dump_patches.tar.gz

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Title:
  [22.10 FEAT] KVM: Secure Execution guest dump encryption with customer
  keys - kernel part

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[Bug 1959966] Comment bridged from LTC Bugzilla

[bugproxy]

--- Comment From fran...@de.ibm.com 2024-08-22 04:09 EDT---
Hey Sergio, I was unavailable the last two days, but I'll test your package 
today.
Sorry that I missed those commits and caused more work.

On a side note: My first name is Janosch and it makes sense to use it
when mentioning me, since fheimes is also around.

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Title:
  [23.04 FEAT] KVM: Secure Execution guest dump encryption with customer
  keys - qemu part

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[Bug 2073554] Comment bridged from LTC Bugzilla

[bugproxy]

--- Comment From avnish.chou...@ibm.com 2024-08-20 09:18 EDT---
Hi Ubuntu,

Any update on the feature request?

Thank you,
Avnish Chouhan

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Title:
  Grub2 Support for nested KVM on PowerVM (POWER10)

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[Bug 2070253] Comment bridged from LTC Bugzilla

[bugproxy]

--- Comment From vajai...@in.ibm.com 2024-08-20 07:05 EDT---
Hi Canonical,
Thanks for responding.

The patch 7be6ce7043b4("KVM: PPC: Book3S HV nestedv2: Cancel pending DEC
exception") does have a fixes tag pointing to the patch 180c6b072bf3
("KVM: PPC: Book3S HV nestedv2: Do not cancel pending decrementer
exception") that was picked up in Ubuntu 24.04.

Since the latest LTS/stable tree before 6.9 is based on  6.6 where the
offending patch 180c6b072bf3 ("KVM: PPC: Book3S HV nestedv2: Do not
cancel pending decrementer exception") was not yet merged hence I hadnt
marked the patch 7be6ce7043b4 to stable.

If this patch still needs manual submission can you please let me know
how to do that.

Thanks
~ Vaibhav

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Title:
  KVM on PowerVM: L2 Guest-Aggressively entering CEDE results in low
  performance. Possible tuning opportunity.

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[Bug 2070253] Comment bridged from LTC Bugzilla

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--- Comment From sthou...@in.ibm.com 2024-08-20 06:00 EDT---
(In reply to comment #8)
> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/
> ?id=7be6ce7043b4cf293c8826a48fd9f56931cef2cf
> DOes not seem to have been upstream tagged for stable updates, hence manual
> submission needed.

let us know the process of manual submission and Ubuntu mailing list
details

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Title:
  KVM on PowerVM: L2 Guest-Aggressively entering CEDE results in low
  performance. Possible tuning opportunity.

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[Bug 2075567] Re: zlib fails to build on s390x on oracular with gcc 14

[bugproxy]

--- Comment From boris.m...@de.ibm.com 2024-08-19 11:34 EDT---
Thanks everyone for your work!
With the fix being verified and released, we can close this bug.
==> Changing status to "CLOSED"

** Tags removed: targetmilestone-inin---
** Tags added: targetmilestone-inin2410

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Title:
  zlib fails to build on s390x on oracular with gcc 14

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[Bug 1959966] Comment bridged from LTC Bugzilla

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--- Comment From fran...@de.ibm.com 2024-08-19 02:50 EDT---
Commit ad3b2e693d applies cleanly for me on the following base commit + quilt 
patches
8a4bd971eb (tag: import/1%6.2+dfsg-2ubuntu6.22)

Does the git cherry-pick fail and if yes, where?
That's one of the easiest patches to have a conflict, so I'm surprised.

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Title:
  [23.04 FEAT] KVM: Secure Execution guest dump encryption with customer
  keys - qemu part

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[Bug 1992178] Comment bridged from LTC Bugzilla

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--- Comment From cha...@us.ibm.com 2024-08-15 16:17 EDT---
What is the status of this bug? Looking at:

> https://github.com/systemd/systemd/issues/25091#issuecomment-1695289642
> https://github.com/systemd/systemd/issues/25091#issuecomment-1398091323

It looks like a couple of commits were provided to mitigate the issue
last year? I only see one track in the LP bug that indicates a fix was
released. Thanks.

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Title:
  autopkgtest: upstream tests that run in qemu hang on ppc64el

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[Bug 1959966] Comment bridged from LTC Bugzilla

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--- Comment From fran...@de.ibm.com 2024-08-15 09:00 EDT---
I have a lot of problems when trying to compile a jammy qemu and I haven't yet 
been able to fix them.
Fortunately I was at least able to apply the following patches on top of the 
qemu jammy-devel source git (after a quilt push -a). If possible try to compile 
them and send me a ppa or deb file for testing.

These patches include the fix for paused VMs if a dump is being written
onto a file system that's too small.

d12a91e0ba target/s390x/arch_dump: Add arch cleanup function for PV dumps
e72629e514 dump: Add arch cleanup function
816644b121 target/s390x/dump: Remove unneeded dump info function pointer init
4376a770c7 target/s390x/arch_dump: Simplify memory allocation in 
s390x_write_elf64_notes()
eb60026120 target/s390x/arch_dump: Fix memory corruption in 
s390x_write_elf64_notes()
ad3b2e693d s390x: Add protected dump cap
113d8f4e95 s390x: pv: Add dump support
1af0006ab9 dump: Replace opaque DumpState pointer with a typed one
9b72224f44 dump: Add architecture section and section string table support
13fd417ddc dump: Reintroduce memory_offset and section_offset
cb415fd61e dump: Write ELF section headers right after ELF header
e41ed29bce dump: Use a buffer for ELF section data and headers
94d788408d dump: fix kdump to work over non-aligned blocks
08df343874 dump: simplify a bit kdump get_next_page()
2341a94d3a dump: Rename write_elf*_phdr_note to prepare_elf*_phdr_note
670e76998a dump: Split elf header functions into prepare and write
c370d5300f dump: Rework dump_calculate_size function
dddf725f70 dump: Rework filter area variables
0c2994ac90 dump: Rework get_start_block
1e8113032f dump: Refactor dump_iterate and introduce dump_filter_memblock_*()
afae6056ea dump: Rename write_elf_loads to write_elf_phdr_loads
c68124738b dump: Consolidate elf note function
5ff2e5a3e1 dump: Cleanup dump_begin write functions
bc7d558017 dump: Consolidate phdr note writes
05bbaa5040 dump: Introduce dump_is_64bit() helper function
e71d353360 dump: Add more offset variables
344107e07b dump: Remove the section if when calculating the memory offset
862a395858 dump: Introduce shdr_num to decrease complexity
046bc4160b dump: Remove the sh_info variable
86a518bba4 dump: Use ERRP_GUARD()

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Title:
  [23.04 FEAT] KVM: Secure Execution guest dump encryption with customer
  keys - qemu part

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[Bug 2075567] Comment bridged from LTC Bugzilla

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--- Comment From i...@de.ibm.com 2024-08-15 09:00 EDT---
I don't think the other patch is necessary. Stefan backported only 
https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=e903ada5e8881acec734eb3f89c3644bbd8da7e9
 to gcc-14.

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Title:
  zlib fails to build on s390x on oracular with gcc 14

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--- Comment From i...@de.ibm.com 2024-08-15 04:26 EDT---
Stefan has committed the patches:

master:
https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=e8a7142a697c5d2673adea33ba23af82a89c9559

gcc-14:
https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=e903ada5e8881acec734eb3f89c3644bbd8da7e9

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Title:
  zlib fails to build on s390x on oracular with gcc 14

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[Bug 2076587] backported-patch-0004

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--- Comment on attachment From harsh.prateek.b...@ibm.com 2024-08-14 07:12 
EDT---


backported-patch-0004

** Attachment added: "backported-patch-0004"
   
https://bugs.launchpad.net/bugs/2076587/+attachment/5805725/+files/0004-target-ppc-handle-vcpu-hotplug-failure-gracefully.patch

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Title:
  cpu hotplug crashes the guest!

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[Bug 2076587] backported-patch-0003

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--- Comment on attachment From harsh.prateek.b...@ibm.com 2024-08-14 07:11 
EDT---


backported-patch-0003

** Attachment added: "backported-patch-0003"
   
https://bugs.launchpad.net/bugs/2076587/+attachment/5805724/+files/0003-cpu-common.c-export-cpu_get_free_index-to-be-reused-.patch

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Title:
  cpu hotplug crashes the guest!

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[Bug 2076587] backported-patch-0002

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--- Comment on attachment From harsh.prateek.b...@ibm.com 2024-08-14 07:10 
EDT---


backported-patch-0002

** Attachment added: "backported-patch-0002"
   
https://bugs.launchpad.net/bugs/2076587/+attachment/5805723/+files/0002-accel-kvm-Introduce-kvm_create_and_park_vcpu-helper.patch

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Title:
  cpu hotplug crashes the guest!

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[Bug 2076587] Comment bridged from LTC Bugzilla

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--- Comment From harsh.prateek.b...@ibm.com 2024-08-14 07:15 EDT---
All 4 required upstream patches (mentioned below) have been backported for Qemu 
v8.2.2 and attached to this BZ.

Pre-req patch:
08c3286822 accel/kvm: Extract common KVM vCPU {creation,parking} code

Fix patches:
c6a3d7bc9e accel/kvm: Introduce kvm_create_and_park_vcpu() helper
18530e7c57 cpu-common.c: export cpu_get_free_index to be reused later
cfb52d07f5 target/ppc: handle vcpu hotplug failure gracefully

Hope this helps.

Thanks
Harsh

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  cpu hotplug crashes the guest!

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[Bug 2076587] backported-patch-0001

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--- Comment on attachment From harsh.prateek.b...@ibm.com 2024-08-14 07:08 
EDT---


backported-patch-0001

** Attachment added: "backported-patch-0001"
   
https://bugs.launchpad.net/bugs/2076587/+attachment/5805722/+files/0001-accel-kvm-Extract-common-KVM-vCPU-creation-parking-c.patch

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Title:
  cpu hotplug crashes the guest!

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[Bug 1927076] Re: IPv6 TCP in reuseport_bpf_cpu from ubuntu_kernel_selftests/net crash P8 node entei (Oops: Exception in kernel mode, sig: 4 [#1])

[bugproxy]

** Tags removed: bugnameltc-192677 severity-high
** Tags added: bugnameltc-194783 severity-medium

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Title:
  IPv6 TCP in reuseport_bpf_cpu from ubuntu_kernel_selftests/net crash
  P8 node entei (Oops: Exception in kernel mode, sig: 4 [#1])

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[Bug 2076866] [NEW] ISST-LTE:KOP:1060.1:doodlp1g8:Post Migration Non-MDC L1 eralp1 crashed with migrate_misplaced_folio+0x4cc/0x5d0

[bugproxy]

Public bug reported:

== Comment: #0 - SEETEENA THOUFEEK  - 2024-08-12 23:50:17 
==
+++ This bug was initially created as a clone of Bug #207985 +++

---Problem Description---
Post Migration Non-MDC L1 eralp1 crashed with 
migrate_misplaced_folio+0x4cc/0x5d0 (
 
Machine Type = na 
 
Contact Information = sthou...@in.ibm.com 
 
---Steps to Reproduce---
 Problem description  : 
After 1 hour of successful migration from doodlp1 [MDC MODE] to eralp1[NON MDC 
mode],eralp1 guest 
and dump is collected
 
---uname output---
na
 
---Debugger---
A debugger is not configured


[281827.975244] NIP [c05f0620] migrate_misplaced_folio+0x4f0/0x5d0
[281827.975251] LR [c05f067c] migrate_misplaced_folio+0x54c/0x5d0
[281827.975258] Call Trace:
[281827.975260] [c01e19ff7140] [c05f0670] 
migrate_misplaced_folio+0x540/0x5d0 (unreliable)
[281827.975268] [c01e19ff71d0] [c054c9f0] 
__handle_mm_fault+0xf70/0x28e0
[281827.975276] [c01e19ff7310] [c054e478] 
handle_mm_fault+0x118/0x400
[281827.975284] [c01e19ff7360] [c053598c] 
__get_user_pages+0x1ec/0x5b0
[281827.975291] [c01e19ff7420] [c0536920] 
get_user_pages_unlocked+0x120/0x4f0
[281827.975298] [c01e19ff74c0] [c0081894ea9c] hva_to_pfn+0xf4/0x630 
[kvm]
[281827.975316] [c01e19ff7550] [c00818b4efc4] 
kvmppc_book3s_instantiate_page+0xec/0x790 [kvm_hv]
[281827.975326] [c01e19ff7660] [c00818b4f750] 
kvmppc_book3s_radix_page_fault+0xe8/0x380 [kvm_hv]
[281827.975335] [c01e19ff7700] [c00818b488fc] 
kvmppc_book3s_hv_page_fault+0x294/0xd60 [kvm_hv]
[281827.975344] [c01e19ff77e0] [c00818b43f5c] 
kvmppc_vcpu_run_hv+0xf94/0x11d0 [kvm_hv]
[281827.975352] [c01e19ff78a0] [c0081896131c] kvmppc_vcpu_run+0x34/0x48 
[kvm]
[281827.975365] [c01e19ff78c0] [c0081895c164] 
kvm_arch_vcpu_ioctl_run+0x39c/0x570 [kvm]
[281827.975379] [c01e19ff7950] [c0081894a104] 
kvm_vcpu_ioctl+0x20c/0x9a8 [kvm]
[281827.975391] [c01e19ff7b30] [c0683974] sys_ioctl+0x574/0x16a0
[281827.975395] [c01e19ff7c30] [c0030838] 
system_call_exception+0x168/0x310
[281827.975400] [c01e19ff7e50] [c000d05c] 
system_call_vectored_common+0x15c/0x2ec
[281827.975406] --- interrupt: 3000 at 0x7fffb7d4d2bc

Mirroring to distro as per message in group channel


Please pick these patches for this bug:

ee86814b0562 ("mm/migrate: move NUMA hinting fault folio isolation + checks 
under PTL")
4b88c23ab8c9 ("mm/migrate: make migrate_misplaced_folio() return 0 on success")
d2136d749d76 ("mm: support multi-size THP numa balancing")
6b0ed7b3c775 ("mm: factor out the numa mapping rebuilding into a new helper")
ebb34f78d72c ("mm: convert folio_estimated_sharers() to 
folio_likely_mapped_shared()")
133d04b1eee9 ("mm/numa_balancing: allow migrate on protnone reference with 
MPOL_PREFERRED_MANY policy")
f8fd525ba3a2 ("mm/mempolicy: use numa_node_id() instead of cpu_to_node()")

Thanks,
Amit

** Affects: kernel-package (Ubuntu)
 Importance: Undecided
 Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage)
 Status: New


** Tags: architecture-ppc64le bugnameltc-208549 severity-high 
targetmilestone-inin---

** Tags added: architecture-ppc64le bugnameltc-208549 severity-high
targetmilestone-inin---

** Changed in: ubuntu
 Assignee: (unassigned) => Ubuntu on IBM Power Systems Bug Triage 
(ubuntu-power-triage)

** Package changed: ubuntu => kernel-package (Ubuntu)

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Title:
  ISST-LTE:KOP:1060.1:doodlp1g8:Post Migration Non-MDC L1 eralp1 crashed
  with  migrate_misplaced_folio+0x4cc/0x5d0

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[Bug 2076587] [NEW] cpu hotplug crashes the guest!

[bugproxy]

Public bug reported:

== Comment: #0 - SEETEENA THOUFEEK  - 2024-08-12 03:47:06 
==
+++ This bug was initially created as a clone of Bug #205620 +++

---Problem Description---
cpu hotplug crashes the guest!cpu hotplug crashes the guest!
 
---Steps to Reproduce---
 I have been trying for the CPU hotplugging to the guest with maxvcpus as 128 
and current value I am giving as 4! but when I try to hotplug 68 vcpus to the 
guest, it crahses and we get error message as: 
[  303.808494] KVM: Create Guest vcpu hcall failed, rc=-44
error: Unable to read from monitor: Connection reset by peer
 

Steps to reproduce:

1) virsh define bug.xml

2) virsh start Fedora39 --console

3) virsh setvcpus Fedora39 68

Output : 
[  662.102542] KVM: Create Guest vcpu hcall failed, rc=-44
error: Unable to read from monitor: Connection reset by peer


If resources are less, in my thinking it should fail gracefully! 
Attaching the XML file that i have used and will post the observations on MDC 
system there i saw this same failure on higher number.

fixed with upstream commit

https://github.com/qemu/qemu/commit/cfb52d07f53aa916003d43f69c945c2b42bc6374
 
Machine Type = na 
 
---Debugger---
A debugger is not configured
 
Contact Information = sthou...@in.ibm.com 
 
---uname output---
NA

** Affects: qemu (Ubuntu)
 Importance: Undecided
 Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage)
 Status: New


** Tags: architecture-ppc64le bugnameltc-208538 severity-high 
targetmilestone-inin---

** Tags added: architecture-ppc64le bugnameltc-208538 severity-high
targetmilestone-inin---

** Changed in: ubuntu
 Assignee: (unassigned) => Ubuntu on IBM Power Systems Bug Triage 
(ubuntu-power-triage)

** Package changed: ubuntu => qemu (Ubuntu)

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  cpu hotplug crashes the guest!

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[Bug 2076569] [NEW] ISST-LTE:KOP:doodlp1g3:L2 guest hung and Call traces seen with Snapshot tests

[bugproxy]

Public bug reported:

== Comment: #0 - SEETEENA THOUFEEK  - 2024-08-12 00:15:56 
==
+++ This bug was initially created as a clone of Bug #206986 +++

---Problem Description---
:doodlp1g3:L2 guest hung and Call traces seen with Snapshot test
 
---Steps to Reproduce---
 Problem description  : 

Problem description  : Problem on L2 Guest

doodlp1g3 is hang and calltraces are seeing

[254596.011652] watchdog: BUG: soft lockup - CPU#0 stuck for 805533275s! 
[systemd-userwor:2849437]
[254596.011796] Modules linked in: chacha_generic wp512 streebog_generic rmd160 
poly1305_generic nhpoly1305 michael_mic md4 crc32_generic twofish_generic 
twofish_common serpent_generic fcrypt des_generic libdes cast6_generic 
cast5_generic cast_common camellia_generic blowfish_generic blowfish_common 
aegis128 tun rpcsec_gss_krb5 rpcrdma rdma_cm iw_cm nfsv4 ib_cm dns_resolver 
ib_core nfs netfs nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib 
nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat 
nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 bonding tls rfkill nf_tables 
binfmt_misc virtio_net net_failover aes_gcm_p10_crypto failover virtio_balloon 
crct10dif_vpmsum nfsd auth_rpcgss nfs_acl lockd grace sunrpc fuse loop 
dm_multipath nfnetlink zram xfs vmx_crypto crc32c_vpmsum virtio_scsi 
pseries_wdt scsi_dh_rdac scsi_dh_emc scsi_dh_alua
[254596.012693] CPU: 0 PID: 2849437 Comm: systemd-userwor Tainted: G
 L 
[254596.012817] Hardware name: IBM pSeries (emulated by qemu) POWER10 (raw) 
0x800200 0xf06 of:SLOF,HEAD hv:linux,kvm pSeries
[254596.012947] NIP:  c00b9054 LR: c00b9104 CTR: 
c053c400
[254596.013040] REGS: c001626d6b40 TRAP: 0900   Tainted: G L
  
[254596.013151] MSR:  80009033   CR: 28822824  
XER: 
[254596.013266] CFAR:  IRQMASK: 0
[254596.013266] GPR00: 28822824 c001626d6de0 c20ced00 

[254596.013266] GPR04:  0a858fa1 00018017 
c0077fff
[254596.013266] GPR08: c0077fffc400   
28822824
[254596.013266] GPR12: c053c400 c3f0 c001626d7238 
c3cf5fe8
[254596.013266] GPR16: 00073d64 c3251500 0001 
1c8c6203
[254596.013266] GPR20: c3cf5fe8 a28f850a  
c3251500
[254596.013266] GPR24: 0002 0018 c00740891500 
c00740891508
[254596.013266] GPR28: 0003 0001 c3cf6120 
c00c00fe4ca8
[254596.014319] NIP [c00b9054] queued_spin_lock_slowpath+0xf20/0x163c
[254596.014397] LR [c00b9104] queued_spin_lock_slowpath+0xfd0/0x163c
[254596.014474] Call Trace:
[254596.014507] [c001626d6de0] [c001626d6e34] 0xc001626d6e34 
(unreliable)
[254596.014604] [c001626d6f00] [c14f9080] _raw_spin_lock+0x68/0x88
[254596.014681] [c001626d6f20] [c053548c] 
page_vma_mapped_walk+0x738/0x1220
[254596.014781] [c001626d6fd0] [c053c5b8] 
try_to_unmap_one+0x1b8/0xe84
[254596.014876] [c001626d7110] [c0539a98] rmap_walk_anon+0x15c/0x324
[254596.014970] [c001626d7170] [c053e950] try_to_unmap+0xc8/0xf0
[254596.015048] [c001626d71d0] [c04c6118] 
shrink_folio_list+0xa84/0xf8c
[254596.015141] [c001626d72f0] [c04c69b8] evict_folios+0x398/0xdd0
[254596.015218] [c001626d74a0] [c04c7640] 
try_to_shrink_lruvec+0x250/0x5ac
[254596.015309] [c001626d7580] [c04c7ae4] shrink_one+0x148/0x2d8
[254596.015388] [c001626d75e0] [c04cd00c] shrink_node+0xe8c/0x11b8
[254596.015463] [c001626d76d0] [c04cea98] 
do_try_to_free_pages+0x144/0x7ec
[254596.015557] [c001626d7790] [c04cf85c] 
try_to_free_pages+0x144/0x290
[254596.015648] [c001626d7850] [c0556d78] __alloc_pages+0x648/0x12ec
[254596.015743] [c001626d7a30] [c05a1d04] 
alloc_pages_mpol+0x134/0x284
[254596.015842] [c001626d7ae0] [c05a2188] vma_alloc_folio+0x84/0x144
[254596.015933] [c001626d7b30] [c0512664] do_wp_page+0x4bc/0x17c8
[254596.016013] [c001626d7bf0] [c051e894] 
__handle_mm_fault+0x1048/0x247c
[254596.016107] [c001626d7d20] [c051fde8] 
handle_mm_fault+0x120/0x408
[254596.016196] [c001626d7d70] [c008ea94] 
___do_page_fault+0x2a0/0xb84
[254596.016293] [c001626d7e20] [c008f598] do_page_fault+0x30/0x74
[254596.016374] [c001626d7e50] [c0008be0] 
data_access_common_virt+0x210/0x220
[254596.016467] --- interrupt: 300 at 0x7fff8d1c0728
[254596.016546] NIP:  7fff8d1c0728 LR: 7fff8d1c0718 CTR: 
7fff8ce50980
[254596.016751] REGS: c001626d7e80 TRAP: 0300   Tainted: G L
  
[254596.016903] MSR:  8280f033   
CR: 24002824  XER: 2004
[254596.017013] CFAR: 7fff8d1c061c DAR: 7fff8d1f DSISR: 0a00 
IRQMASK: 0
[254596.

[Bug 2075721] Comment bridged from LTC Bugzilla

[bugproxy]

*** This bug is a duplicate of bug 2074376 ***
https://bugs.launchpad.net/bugs/2074376

--- Comment From kowshik.j...@in.ibm.com 2024-08-09 11:36 EDT---
I have tested this scenario with the noble-proposed kernel. I could attach and 
detach interfaces successfully. No crash/trace messages found.

Guest Env:
===
Linux ubuntu 6.8.0-43-generic #43-Ubuntu SMP Fri Aug  2 19:46:18 UTC 2024 
ppc64le ppc64le ppc64le GNU/Linux

root@ubuntu:~# cat /boot/config-6.8.0-43-generic | grep PCI_DYNAMIC
# CONFIG_PCI_DYNAMIC_OF_NODES is not set

Before Attaching the Interface:
=

root@ubuntu:~# ip addr
1: lo:  mtu 65536 qdisc noqueue state UNKNOWN group 
default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host noprefixroute
valid_lft forever preferred_lft forever
2: enp0s1:  mtu 1500 qdisc pfifo_fast state UP 
group default qlen 1000
link/ether 52:54:00:24:e5:58 brd ff:ff:ff:ff:ff:ff
inet 192.168.122.187/24 metric 100 brd 192.168.122.255 scope global dynamic 
enp0s1
valid_lft 2749sec preferred_lft 2749sec
inet6 fe80::5054:ff:fe24:e558/64 scope link
valid_lft forever preferred_lft forever

After Attaching the Interface:
=

# virsh attach-interface Ubuntu2404 bridge --source virbr0
Interface attached successfully

root@ubuntu:~# ip addr
1: lo:  mtu 65536 qdisc noqueue state UNKNOWN group 
default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host noprefixroute
valid_lft forever preferred_lft forever
2: enp0s1:  mtu 1500 qdisc pfifo_fast state UP 
group default qlen 1000
link/ether 52:54:00:24:e5:58 brd ff:ff:ff:ff:ff:ff
inet 192.168.122.187/24 metric 100 brd 192.168.122.255 scope global dynamic 
enp0s1
valid_lft 2738sec preferred_lft 2738sec
inet6 fe80::5054:ff:fe24:e558/64 scope link
valid_lft forever preferred_lft forever
3: enp0s7:  mtu 1500 qdisc noop state DOWN group default 
qlen 1000
link/ether 52:54:00:96:d9:83 brd ff:ff:ff:ff:ff:ff

After Detaching the Interface:
=

# virsh detach-interface Ubuntu2404 bridge 52:54:00:96:d9:83
Interface detached successfully

root@ubuntu:~# ip addr
1: lo:  mtu 65536 qdisc noqueue state UNKNOWN group 
default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host noprefixroute
valid_lft forever preferred_lft forever
2: enp0s1:  mtu 1500 qdisc pfifo_fast state UP 
group default qlen 1000
link/ether 52:54:00:24:e5:58 brd ff:ff:ff:ff:ff:ff
inet 192.168.122.187/24 metric 100 brd 192.168.122.255 scope global dynamic 
enp0s1
valid_lft 2720sec preferred_lft 2720sec
inet6 fe80::5054:ff:fe24:e558/64 scope link
valid_lft forever preferred_lft forever

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Title:
  [Ubuntu24.04] virsh detach-interface is crashing the guest

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[Bug 2075567] Comment bridged from LTC Bugzilla

[bugproxy]

--- Comment From boris.m...@de.ibm.com 2024-08-09 05:47 EDT---
Thanks Stefan, for your GCC patch posted at: 
https://gcc.gnu.org/pipermail/gcc-patches/2024-August/659923.html

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Title:
  zlib fails to build on s390x on oracular with gcc 14

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[Bug 2071471] Comment bridged from LTC Bugzilla

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--- Comment From barbara.mun...@de.ibm.com 2024-08-09 05:10 EDT---
As pointed out before, I consider the verification done. Bug can be closed.

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Title:
  [UBUNTU 24.04] IOMMU DMA mode changed in kernel config causes massive
  throughput degradation for PCI-related network workloads

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[Bug 2076406] [NEW] ISST-LTE:KOP:1060FW:evelp2 :L2 Guest migration: evelp2g4[L2]: while running NFS guest migration continuously dumping smp_call_function_many_cond+0x500/0x738 (unreliable) and watchd

[bugproxy]

Public bug reported:

== Comment: #0 - SEETEENA THOUFEEK  - 2024-08-09 03:50:24 
==
+++ This bug was initially created as a clone of Bug #206737 +++

---Problem Description---
L2 Guest migration: evelp2g4[L2]: while running NFS guest migration 
continuously dumping smp_call_function_many_cond+0x500/0x738 (unreliable) and 
watchdog: BUG: soft lockup - CPU#14 stuck for 223s! [systemd-homed}
 
---uname output---
NA
 
Machine Type = NA 
 
Contact Information = NA

[79205.163691] Hardware name: IBM pSeries (emulated by qemu) POWER10 (raw) 
0x800200 0xf06 of:SLOF,HEAD hv:linux,kvm pSeries
[79205.163834] NIP:  c02bb7a4 LR: c02bb750 CTR: c00d192c
[79205.163929] REGS: c003871cf1b0 TRAP: 0900   Tainted: G L 
 
[79205.165041] MSR:  8280b033   CR: 
4404  XER: 20040004
[79205.165266] CFAR:  IRQMASK: 0
   GPR00: c02bbc58 c003871cf450 c20ded00 
0009
   GPR04: 0009 0009 0080 
0200
   GPR08: 01ff 0001 c00740f57ee0 
44048222
   GPR12: c00d192c c00743ddc980  

   GPR16:  cd86e200 0001 
0001
   GPR20: 000c c3d06188 c00ac4d0 
ca374e00
   GPR24: c3d06840  c00741193188 
c00741193188
   GPR28: c00741193180 c3d06840 0048 
0009
[79205.171660] NIP [c02bb7a4] smp_call_function_many_cond+0x1e0/0x738
[79205.171752] LR [c02bb750] smp_call_function_many_cond+0x18c/0x738
[79205.171835] Call Trace:
[79205.171869] [c003871cf450] [c02bbc58] 
smp_call_function_many_cond+0x694/0x738 (unreliable)
[79205.171986] [c003871cf520] [c00ac4d0] radix__tlb_flush+0x4c/0x140
[79205.173636] [c003871cf560] [c052e900] tlb_finish_mmu+0x130/0x1f0
[79205.173754] [c003871cf590] [c052a280] exit_mmap+0x1cc/0x574
[79205.173848] [c003871cf6c0] [c016ec9c] __mmput+0x54/0x1d4
[79205.173939] [c003871cf6f0] [c06385c4] begin_new_exec+0x6dc/0xefc
[79205.174037] [c003871cf780] [c06edea8] 
load_elf_binary+0x4c8/0x1a50
[79205.174136] [c003871cf880] [c06361c8] bprm_execve+0x2b4/0x7a0
[79205.174219] [c003871cf950] [c0637988] 
do_execveat_common+0x1c0/0x2d8
[79205.174316] [c003871cf9f0] [c0638e38] sys_execve+0x54/0x6c
[79205.174399] [c003871cfa20] [c002fec8] 
system_call_exception+0x168/0x310
[79205.174497] [c003871cfe50] [c000d05c] 
system_call_vectored_common+0x15c/0x2ec
[79205.176245] --- interrupt: 3000 at 0x7fff95b10b08
[79205.176326] NIP:  7fff95b10b08 LR: 7fff95b10b08 CTR: 
[79205.176438] REGS: c003871cfe80 TRAP: 3000   Tainted: G L 
 (
[79205.176558] MSR:  8280f033   CR: 
48044424  XER: 
[79205.176686] IRQMASK: 0
   GPR00: 000b 7fffe6919aa0 7fff95c47c00 
000152598c80
   GPR04: 7fffe6919bf8 0001525db6e0  
7fffe6919a20
   GPR08: 000152598c88   

   GPR12:  7fff969a4220 000152585570 

   GPR16: 7fffe6919c48 0570 000152598c80 

   GPR20:  9998 00015259a450 
000152586460
   GPR24: 0001525bca90 7fffe6919e48  
0001525db6e0
   GPR28: 000117e98448 0001525d0b00  
0010
[79205.177505] NIP [7fff95b10b08] 0x7fff95b10b08
[79205.177578] LR [7fff95b10b08] 0x7fff95b10b08
[79205.177649] --- interrupt: 3000


Steps to reproduce: Install the  build on NFS storage  guest kernel 6.8.10-300 

Start the HTX workload - mdt.less

Start the NFS guest migration between the L2 hosts.

Sourece L2 host : evelp2 
Target L2 host  : rinlp1

migration command : virsh migrate --live  --domain $vm_name
qemu+ssh://$target_host/system --verbose --undefinesource --persistent
--timeout 120

Share the same NFS storage between two hosts [here /kvm_pool]  
10.33.4.52:/kvm_pool   nfs4  650G  304G  347G  47% /kvm_pool

Test running : HTX

Guest state : up

-
--

L2 guest Config:

(1) Problem on  Guest:   evelp2g4

(2) PHYP/ Processor Type:  KVM/P10/Everest

(3) Rootvg Filesystem: EXT4


(5) Network Bridge: Macvtap

(6) IO Disk Type/Driver: qemu-img/ qcow2

(7) Install Disk Type: Single

-
--

L1 host de

[Bug 1959940] Comment bridged from LTC Bugzilla

[bugproxy]

--- Comment From fran...@de.ibm.com 2024-08-08 08:52 EDT---
Three additional commits are necessary to allow cherry picking with minimal 
effort:
3c724f1a1caa s390: uv: Add offset comments to UV query struct and fix naming
ac640db3a026 s390/uv: Add SE hdr query information
daec8d408308 Documentation: KVM: add separate directories for 
architecture-specific documentation

I'll attach the backport patches once I've verified them and for that
I'll need to backport qemu.

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Title:
  [22.10 FEAT] KVM: Secure Execution guest dump encryption with customer
  keys - kernel part

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[Bug 1959966] Comment bridged from LTC Bugzilla

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--- Comment From fran...@de.ibm.com 2024-08-08 08:53 EDT---
Hey Frank, could you give me a repo url for qemu as well?

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Title:
  [23.04 FEAT] KVM: Secure Execution guest dump encryption with customer
  keys - qemu part

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[Bug 2060108] Comment bridged from LTC Bugzilla

[bugproxy]

--- Comment From cha...@us.ibm.com 2024-08-07 17:01 EDT---
(In reply to comment #9)
> May I ask why the distro build is forcing the use of -fno-omit-frame-pointer
> on ppc64le?  It just leads to less efficient code on ppc64le.

Hi Frank,

Do you know the answer? Thanks.

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Title:
  greenlet 3.0.3 fails to build on ppc64el (and riscv64)

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[Bug 2075567] Comment bridged from LTC Bugzilla

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--- Comment From boris.m...@de.ibm.com 2024-08-07 12:48 EDT---
Thanks Ilya for your quick analysis, finding out that this is a compiler issue. 
Stefan will send a patch to the GCC mailing list.
We will post a link here once it's available.

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Title:
  zlib fails to build on s390x on oracular with gcc 14

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[Bug 2075567] Re: zlib fails to build on s390x on oracular with gcc 14

[bugproxy]

** Tags added: architecture-s39064 bugnameltc-208475 severity-high
targetmilestone-inin---

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Title:
  zlib fails to build on s390x on oracular with gcc 14

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[Bug 2076147] [NEW] L2 Guest hung during LTP Tests. Back trace of paca->saved_r1 (0xc000000c1bc8bb00) (possibly stale) @ new_slab

[bugproxy]

Public bug reported:

== Comment: #0 - SEETEENA THOUFEEK  - 2024-08-06 00:20:57 
==
+++ This bug was initially created as a clone of Bug #206372 +++

---Problem Description---
L2 Guest hung during LTP Tests. Back trace of paca->saved_r1 
(0xc00c1bc8bb00) (possibly stale) @ new_slab (edit)

 
---uname output---
NA
 
---Additional Hardware Info---
NA 

 
Contact Information = na 
 
---Debugger Data---
NA 
 
---Patches Installed---
NA
 
---Steps to Reproduce---
 
Tests running: SLS(io,base)
LPAR Config:

PHYP Environment:  PowerVM
LPAR Hostname/IP: 10.33.2.107
Rootvg Filesystem: xfs
Network Interface: Shiner-T
vNIC/SR-IOV Config: n/a
IO Type: SAN
IO Disk Type: raw
Multipath Enabled: No
-
DUMP Config:

KDUMP configured: Yes
XMON enabled no
DUMP Available: no
 
Machine Type = na 

Userspace rpm: NA 
 
The userspace tool has the following bit modes: NA 

Userspace tool obtained from project website:  na 
 
Userspace tool common name: NA 
 
*Additional Instructions for na: 
-Post a private note with access information to the machine that is currently 
in the debugger.
-Attach ltrace and strace of userspace application.


please include this commit in Ubuntu 24.04

upstream commit  which is solving these data store lockups:
73bc32875ee9b1881dd780308c6793fe463fe803 mm: hold PTL from the first PTE while 
reclaiming a large folio

** Affects: kernel-package (Ubuntu)
 Importance: Undecided
 Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage)
 Status: New


** Tags: architecture-ppc64le bugnameltc-208449 severity-high 
targetmilestone-inin---

** Tags added: architecture-ppc64le bugnameltc-208449 severity-high
targetmilestone-inin---

** Changed in: ubuntu
 Assignee: (unassigned) => Ubuntu on IBM Power Systems Bug Triage 
(ubuntu-power-triage)

** Package changed: ubuntu => kernel-package (Ubuntu)

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Title:
  L2 Guest hung during LTP Tests. Back trace of paca->saved_r1
  (0xc00c1bc8bb00) (possibly stale) @ new_slab

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[Bug 2075721] Host's dmesg log after the crash

[bugproxy]

Default Comment by Bridge

** Attachment added: "Host's dmesg log after the crash"
   
https://bugs.launchpad.net/bugs/2075721/+attachment/5802098/+files/HostDmesg.txt

** Changed in: ubuntu
 Assignee: (unassigned) => Ubuntu on IBM Power Systems Bug Triage 
(ubuntu-power-triage)

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Title:
  [Ubuntu24.04] virsh detach-interface is crashing the guest

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[Bug 2075721] Host's /var/log/messages

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** Attachment added: "Host's /var/log/messages"
   
https://bugs.launchpad.net/bugs/2075721/+attachment/5802097/+files/HostVarLogMessages.txt

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Title:
  [Ubuntu24.04] virsh detach-interface is crashing the guest

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[Bug 2075721] guest sos report

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Default Comment by Bridge

** Attachment added: "guest sos report"
   
https://bugs.launchpad.net/bugs/2075721/+attachment/5802096/+files/sosreport-ubuntulp3guest1-2024-05-28-anrlvjt.tar.xz

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Title:
  [Ubuntu24.04] virsh detach-interface is crashing the guest

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[Bug 2075721] Guest xml afer attaching the interface successfully

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** Attachment added: "Guest xml afer attaching the interface successfully"
   
https://bugs.launchpad.net/bugs/2075721/+attachment/5802095/+files/After_Attach.xml

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Title:
  [Ubuntu24.04] virsh detach-interface is crashing the guest

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[Bug 2075721] [NEW] [Ubuntu24.04] virsh detach-interface is crashing the guest

[bugproxy]

Public bug reported:

== Comment: #0 - Kowshik Jois B S  - 2024-05-28 
01:07:02 ==
---Problem Description---
While trying virsh attach-interface and virsh detach-interface, It is observed 
that, attaching an interface is successful. But trying to detach the same 
results in the guest crash with the below trace messages on the console.


root@ubuntulp3guest1:~# [ 5363.726428] Kernel attempted to read user page 
(10ec0058) - exploit attempt? (uid: 0)
[ 5363.726570] BUG: Unable to handle kernel data access on read at 
0x10ec0058
[ 5363.726662] Faulting instruction address: 0xc12d4828
[ 5363.726739] Oops: Kernel access of bad area, sig: 11 [#1]
[ 5363.726800] LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA pSeries
[ 5363.726880] Modules linked in: 8139too 8139cp mii qrtr cfg80211 binfmt_misc 
uio_pdrv_genirq vmx_crypto uio dm_multipath nfnetlink ip_tables x_tables 
autofs4 btrfs blake2b_generic raid10 raid456 async_raid6_recov async_memcpy 
async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 
poly1305_p10_crypto chacha_p10_crypto libchacha crct10dif_vpmsum crc32c_vpmsum 
xhci_pci xhci_pci_renesas aes_gcm_p10_crypto
[ 5363.727302] CPU: 0 PID: 1614 Comm: drmgr Not tainted 6.8.0-31-generic 
#31-Ubuntu
[ 5363.727426] Hardware name: IBM pSeries (emulated by qemu) POWER10 (raw) 
0x800200 0xf06 of:SLOF,HEAD hv:linux,kvm pSeries
[ 5363.727563] NIP:  c12d4828 LR: c12d68f0 CTR: 
[ 5363.727653] REGS: c000149cb440 TRAP: 0300   Not tainted  
(6.8.0-31-generic)
[ 5363.727742] MSR:  8280b033   CR: 
44088282  XER: 2004
[ 5363.727855] CFAR: c12d68ec DAR: 10ec0058 DSISR: 4000 
IRQMASK: 0 
[ 5363.727855] GPR00: c12d68f0 c000149cb6e0 c2254800 
10ec0048 
[ 5363.727855] GPR04: c000149cb748   
 
[ 5363.727855] GPR08:    
 
[ 5363.727855] GPR12:  c3e8  
 
[ 5363.727855] GPR16:    
 
[ 5363.727855] GPR20:    
 
[ 5363.727855] GPR24:   c48585a0 
c000149cb7d4 
[ 5363.727855] GPR28: 0001 c00014de9400 10ec0048 
 
[ 5363.728644] NIP [c12d4828] __of_changeset_entry_invert+0x10/0x1ac
[ 5363.728732] LR [c12d68f0] __of_changeset_revert_entries+0x98/0x180
[ 5363.728813] Call Trace:
[ 5363.728845] [c000149cb7b0] [c12d6b60] 
of_changeset_revert+0x58/0xd8
[ 5363.728937] [c000149cb800] [c0d0d498] 
of_pci_remove_node+0x74/0xb0
[ 5363.729029] [c000149cb830] [c0cdbde0] 
pci_stop_bus_device+0xf4/0x138
[ 5363.729126] [c000149cb870] [c0cdbf40] 
pci_stop_and_remove_bus_device_locked+0x34/0x64
[ 5363.729232] [c000149cb8a0] [c0cf2950] remove_store+0xf0/0x108
[ 5363.729311] [c000149cb8f0] [c0e88384] dev_attr_store+0x34/0x78
[ 5363.729389] [c000149cb910] [c07f8234] sysfs_kf_write+0x70/0xa4
[ 5363.729467] [c000149cb930] [c07f66a8] 
kernfs_fop_write_iter+0x1d0/0x2e0
[ 5363.729558] [c000149cb980] [c06c8fc8] vfs_write+0x27c/0x558
[ 5363.729639] [c000149cba30] [c06c9628] ksys_write+0x90/0x170
[ 5363.729716] [c000149cba80] [c0033248] 
system_call_exception+0xf8/0x290
[ 5363.729811] [c000149cbe50] [c000d05c] 
system_call_vectored_common+0x15c/0x2ec
[ 5363.729903] --- interrupt: 3000 at 0x74191e15c720
[ 5363.729964] NIP:  74191e15c720 LR: 74191e15c720 CTR: 
[ 5363.730053] REGS: c000149cbe80 TRAP: 3000   Not tainted  
(6.8.0-31-generic)
[ 5363.730143] MSR:  8280f033   CR: 
48088202  XER: 
[ 5363.730257] IRQMASK: 0 
[ 5363.730257] GPR00: 0004 7bdfb730 74191e296d00 
000b 
[ 5363.730257] GPR04: 0be4ed58d640 0001  
0031 
[ 5363.730257] GPR08:    
 
[ 5363.730257] GPR12:  74191e3eb300  
 
[ 5363.730257] GPR16:  0be4b90f2de0 0be4b90f0298 
0be4b90f2da0 
[ 5363.730257] GPR20: 0be4b90f11b8 0be4b90eff08 7bdfb910 
0be4b90f2220 
[ 5363.730257] GPR24: 0be4b90f2da8 0be4ed54f440 74191e28e0c0 
0001 
[ 5363.730257] GPR28: 0be4ed4902a0 0be4ed58d640 0001 
7bdfb730 
[ 5363.730991] NIP [74191e15c720] 0x74191e15c720
[ 5363.731055] LR [74191e15c720] 0x74191e15c720
[ 5363.731115] --- interrupt: 3000
[ 5363.731161] Code: 6000 4bfffec8 7c0802a6 6000 f863 f8630008 
3860 4e800020 3c4c00f8 3842ffe8 7c0802a6 6000  e9230018 
e8e3 e9030008 
[ 5363.731337] ---[ end trace 0

[Bug 2075575] [NEW] kexec fails in LPAR when some cpus are disabled

[bugproxy]

Public bug reported:

== Comment: #0 - SEETEENA THOUFEEK  - 2024-08-02 03:11:31 
==
+++ This bug was initially created as a clone of Bug #206083 +++

---Problem Description---
kexec fails in LPAR when some cpus are disabled
 
Contact Information = sthou...@in.ibm.com 
 
Machine Type = na 
 
---uname output---
na
 
---Debugger---
A debugger is not configured
 
---Steps to Reproduce---
 Summary:
At L1 level, kexec fails if some of the cpus in the machine are disabled.


Distros and kernel  versions used:
1. Distro versions used

  a. L1 LPAR :

  b. L2 :


Repro steps:
1. Boot into an L1 lpar
2. Disable some cpus (eg: ppc64_cpu --cores-on=3)
3. Try to kexec. 


This bug is reproducible only when we load the target kernel/initrd and use 
"kexec -e" as follows:

kexec -l --initrd initramfs-$(uname -r).img vmlinuz-$(uname -r)
--append="$(cat /proc/cmdline)"

kexec -e


kexec works fine if we do a normal kexec without skipping the shutdown path

kexec --initrd initramfs-$(uname -r).img vmlinuz-$(uname -r)
--append="$(cat /proc/cmdline)"


Fix is upstream now:
https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id=21a741eb75f80397e5f7d3739e24d7d75e619011

Thanks,
Sourabh Jain

please include in Ubuntu

 
Oops output:
 no
 
Stack trace output:
 no
 
System Dump Info:
  The system is not configured to capture a system dump.
 
*Additional Instructions for sthou...@in.ibm.com: 
-Attach sysctl -a output output to the bug.

** Affects: ubuntu-power-systems
 Importance: Undecided
 Status: New

** Affects: linux (Ubuntu)
 Importance: Undecided
 Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage)
 Status: New


** Tags: architecture-ppc64le bugnameltc-208048 severity-high 
targetmilestone-inin---

** Tags added: architecture-ppc64le bugnameltc-208048 severity-high
targetmilestone-inin---

** Changed in: ubuntu
 Assignee: (unassigned) => Ubuntu on IBM Power Systems Bug Triage 
(ubuntu-power-triage)

** Package changed: ubuntu => kernel-package (Ubuntu)

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  kexec fails in LPAR when some cpus are disabled

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[Bug 2075491] Re: binary16 float-point arithmetic crashes LLVM on s390x

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** Tags added: architecture-s39064 bugnameltc-208024 severity-high
targetmilestone-inin---

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Title:
  binary16 float-point arithmetic crashes LLVM on s390x

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[Bug 2075204] Re: gdb on s390x chokes on divide-by-zero from chaos-marmosets

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** Tags added: architecture-s39064 bugnameltc-208023 severity-high
targetmilestone-inin---

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Title:
  gdb on s390x chokes on divide-by-zero from chaos-marmosets

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[Bug 2074380] s390/cpum_cf: make crypto counters upward compatible across machine types for jammy-master-next tree

[bugproxy]

--- Comment (attachment only) From tmri...@de.ibm.com 2024-08-01 04:49 
EDT---


** Attachment added: "s390/cpum_cf: make crypto counters upward compatible 
across  machine types for jammy-master-next tree"
   
https://bugs.launchpad.net/bugs/2074380/+attachment/5801913/+files/0001-s390-cpum_cf-make-crypto-counters-upward-compatible-.patch

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Title:
  [UBUNTU 22.04] kernel: s390/cpum_cf: make crypto counters upward
  compatible

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[Bug 2074380] Comment bridged from LTC Bugzilla

[bugproxy]

--- Comment From tmri...@de.ibm.com 2024-08-01 04:53 EDT---
After a fews tries to fix up the prereq patches, I decided to do a backport
of the patch in question. I have used:

$ git branch
master
* master-next
master-prep
z17-toleration
$ cat .git/config
[core]
repositoryformatversion = 0
filemode = true
bare = false
logallrefupdates = true
[remote "origin"]
url = https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/jammy
fetch = +refs/heads/*:refs/remotes/origin/*
[branch "master"]
remote = origin
merge = refs/heads/master
[branch "master-prep"]
remote = origin
merge = refs/heads/master-prep
[branch "master-next"]
remote = origin
merge = refs/heads/master-next
$

I hope this was the right code base.

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Title:
  [UBUNTU 22.04] kernel: s390/cpum_cf: make crypto counters upward
  compatible

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[Bug 2049701] Re: [24.10 FEAT] [VS2009] KVM: Secure IPL Simulation - libvirt part

[bugproxy]

--- Comment From boris.m...@de.ibm.com 2024-07-31 08:39 EDT---
This item will not make it in time for Oracular FF, therefore we need to 
postpone this to the next release.

==> Changing target milestone to "25.04"

** Tags removed: targetmilestone-inin2410
** Tags added: targetmilestone-inin2504

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Title:
  [24.10 FEAT] [VS2009] KVM: Secure IPL Simulation - libvirt part

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[Bug 2027925] Re: [24.10 FEAT] [VS2218] KVM: Implement virsh hypervisor-cpu-models (libvirt)

[bugproxy]

--- Comment From boris.m...@de.ibm.com 2024-07-31 08:48 EDT---
This item will not make it in time for Oracular FF, therefore we need to 
postpone this to the next release.

==> Changing target milestone to "25.04"

** Tags removed: targetmilestone-inin2410
** Tags added: targetmilestone-inin2504

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Title:
  [24.10 FEAT] [VS2218] KVM: Implement virsh hypervisor-cpu-models
  (libvirt)

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[Bug 2049698] Re: [24.10 FEAT] [VS1807] KVM: Full boot order support (qemu)

[bugproxy]

--- Comment From boris.m...@de.ibm.com 2024-07-31 08:36 EDT---
This item will not make it in time for Oracular FF, therefore we need to 
postpone this to the next release.

==> Changing target milestone to "25.04"

** Tags removed: targetmilestone-inin2410
** Tags added: targetmilestone-inin2504

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Title:
  [24.10 FEAT] [VS1807] KVM: Full boot order support (qemu)

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[Bug 2049702] Re: [24.10 FEAT] [VS2009] KVM: Secure IPL Simulation - qemu part

[bugproxy]

--- Comment From boris.m...@de.ibm.com 2024-07-31 08:37 EDT---
This item will not make it in time for Oracular FF, therefore we need to 
postpone this to the next release.

==> Changing target milestone to "25.04"

** Tags removed: targetmilestone-inin2410
** Tags added: targetmilestone-inin2504

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Title:
  [24.10 FEAT] [VS2009] KVM: Secure IPL Simulation - qemu part

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[Bug 2051239] Re: [24.10 FEAT] [VS1807] KVM: Full boot order support - libvirt part

[bugproxy]

--- Comment From boris.m...@de.ibm.com 2024-07-31 08:34 EDT---
This item will not make it in time for Oracular FF, therefore we need to 
postpone this to the next release.

==> Changing target milestone to "25.04"

** Tags removed: targetmilestone-inin2410
** Tags added: targetmilestone-inin2504

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Title:
  [24.10 FEAT] [VS1807] KVM: Full boot order support - libvirt part

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[Bug 2064319] Comment bridged from LTC Bugzilla

[bugproxy]

--- Comment From naynj...@ibm.com 2024-07-30 08:53 EDT---
Do you mean this has guest secure boot with dynamic keys related patches merged?

Could you please confirm from where the patches are picked?

Thanks & Regards,
- Nayna

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Title:
  Power guest secure boot with key management: GRUB2 portion

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[Bug 2074380] [NEW] [UBUNTU 22.04] kernel: s390/cpum_cf: make crypto counters upward compatible

[bugproxy]

Public bug reported:

Description:   kernel: s390/cpum_cf: make crypto counters upward
compatible

Symptom:   The CPU Measurement facility crypto counter set is not
   listed in the device sysfs tree.  

Problem:   The CPU Measurement facility crypto counter set is not
   exported in the sysfs directory
   /sys/devices/cpum_cf/events.
   The attribute files for each CPU-MF counter defined
   in the crypto counter set is missing. This is caused
   by the counter second version number of the CPU
   Measurement Facility hardware being incremented on
   new machines.  This causes a sanity check to fail,
   but the counters are supported by hardware.

Solution:  Remove upper limit in counter second version number
   check.

Reproduction:  Run command on a new machine generation:
# ls -l /sys/devices/cpum_cf/events/ | grep AES
# 
   If the output is empty than this patch is required.
   The output should be:
# ls  /sys/devices/cpum_cf/events/ | grep AES
AES_BLOCKED_CYCLES
AES_BLOCKED_FUNCTIONS
AES_CYCLES
AES_FUNCTIONS
#

Upstream-ID of fix:   f10933cbd2dfddf6273698a45f76db9bafd8150f

** Affects: linux (Ubuntu)
 Importance: Undecided
 Assignee: Skipper Bug Screeners (skipper-screen-team)
 Status: New


** Tags: architecture-s39064 bugnameltc-207993 severity-high 
targetmilestone-inin---

** Tags added: architecture-s39064 bugnameltc-207993 severity-high
targetmilestone-inin---

** Changed in: ubuntu
 Assignee: (unassigned) => Skipper Bug Screeners (skipper-screen-team)

** Package changed: ubuntu => linux (Ubuntu)

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Title:
  [UBUNTU 22.04] kernel: s390/cpum_cf: make crypto counters upward
  compatible

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[Bug 2071774] Re: zfs-dkms FTBFS on Linux 6.10/s390x

[bugproxy]

** Tags removed: targetmilestone-inin---
** Tags added: targetmilestone-inin2410

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Title:
  zfs-dkms FTBFS on Linux 6.10/s390x

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[Bug 2071774] Comment bridged from LTC Bugzilla

[bugproxy]

--- Comment From vasily.gor...@de.ibm.com 2024-07-29 04:38 EDT---
Merged in Linus tree

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.11-rc1&id=e188e5d5ffd01d484b5255b88739fcf67b300223

Also picked into the 6.10-stable tree queue

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Title:
  zfs-dkms FTBFS on Linux 6.10/s390x

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[Bug 2042677] Re: [UBUNTU 23.04] PKCS#11 Applications fail to find libopencryptoki.so library due to missing /etc/ld.so.conf.d entry.

[bugproxy]

** Tags removed: targetmilestone-inin2310
** Tags added: targetmilestone-inin2404

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Title:
  [UBUNTU 23.04] PKCS#11 Applications fail to find libopencryptoki.so
  library due to missing /etc/ld.so.conf.d entry.

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[Bug 2042677] Comment bridged from LTC Bugzilla

[bugproxy]

--- Comment From grgo.mari...@ibm.com 2024-07-25 11:15 EDT---
We still observe this problem with Ubuntu24.04.

Can we expect some progress being done here anytime soon?

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Title:
  [UBUNTU 23.04] PKCS#11 Applications fail to find libopencryptoki.so
  library due to missing /etc/ld.so.conf.d entry.

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[Bug 2060039] Comment bridged from LTC Bugzilla

[bugproxy]

--- Comment From sthou...@in.ibm.com 2024-07-23 08:55 EDT---
(In reply to comment #19)
> Fix accepted upstream (powerpc/next):
>
>   https://git.kernel.org/powerpc/c/353d7a84c214f
>   ("powerpc/64s/radix/kfence: map __kfence_pool at page granularity")

Ubuntu team, let us know if these patch got merged into Ubuntu distro

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Title:
  [Ubuntu-24.04] FADump with recommended crash size is making the L1
  hang

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[Bug 1931725] Re: initramfs-tools & kernel: use zstd as the default compression method

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** Tags removed: verification-needed-focal

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Title:
  initramfs-tools & kernel: use zstd as the default compression method

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[Bug 2073554] Comment bridged from LTC Bugzilla

[bugproxy]

And this patch adds Radix support (and more) - without Radix any PowerVM
KVM LPARs will fail to boot.

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Title:
  Grub2 Support for KVM on PowerVM

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[Bug 2071471] Comment bridged from LTC Bugzilla

[bugproxy]

--- Comment From barbara.mun...@de.ibm.com 2024-07-19 02:38 EDT---
I verified that with 6.8.0-40-generic from -proposed the degradation is indeed 
gone.
Thanks a lot!

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Title:
  [UBUNTU 24.04] IOMMU DMA mode changed in kernel config causes massive
  throughput degradation for PCI-related network workloads

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[Bug 2073554] [NEW] Grub2 Support for KVM on PowerVM

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Public bug reported:

AVNISH CHOUHAN 2024-06-24 05:57:01 CDT

We have added required changes in grub2 to support KVM on Power. The
patch is available in upstream grub. This patch adds support for Radix,
Xive and Radix_gtse in Options vector5 which is required for KVM LPARs.
KVM LPARs ONLY support Radix and not the Hash. Not enabling Radix on any
PowerVM KVM LPARs will result in boot failure.

https://lists.gnu.org/archive/html/grub-devel/2024-05/msg00209.html

[reply] [?] Internal OnlyComment 3AVNISH CHOUHAN 2024-07-01 05:19:38 CDT
Hi,

Upstream commit :
https://git.savannah.gnu.org/cgit/grub.git/commit/?id=fa36f6376087b81a4de05623a5cd871a8fa30b35

Thank you,
Avnish Chouhan

** Affects: grub (Ubuntu)
 Importance: Undecided
 Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage)
 Status: New


** Tags: architecture-ppc64le bugnameltc-207096 severity-high 
targetmilestone-inin2404

** Tags added: architecture-ppc64le bugnameltc-207096 severity-high
targetmilestone-inin2404

** Changed in: ubuntu
 Assignee: (unassigned) => Ubuntu on IBM Power Systems Bug Triage 
(ubuntu-power-triage)

** Package changed: ubuntu => grub (Ubuntu)

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  Grub2 Support for KVM on PowerVM

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[Bug 2071471] Re: [UBUNTU 24.04] IOMMU DMA mode changed in kernel config causes massive throughput degradation for PCI-related network workloads

[bugproxy]

** Tags removed: targetmilestone-inin---
** Tags added: targetmilestone-inin2404 verification-done 
verification-done-noble

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Title:
  [UBUNTU 24.04] IOMMU DMA mode changed in kernel config causes massive
  throughput degradation for PCI-related network workloads

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[Bug 2060217] Re: NFSv4 fails to mount in noble/s390x

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** Tags removed: targetmilestone-inin---
** Tags added: targetmilestone-inin2404

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Title:
  NFSv4 fails to mount in noble/s390x

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[Bug 2071774] Comment bridged from LTC Bugzilla

[bugproxy]

--- Comment From vasily.gor...@de.ibm.com 2024-07-17 12:24 EDT---
The patch will probably be sent upstream for 6.11 next week, and hopefully 
picked up in 6.10 stable. I'll post links once they are available.

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Title:
  zfs-dkms FTBFS on Linux 6.10/s390x

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[Bug 2071774] Fix __pa/__va for modules under non-GPL licenses

[bugproxy]

--- Comment on attachment From vasily.gor...@de.ibm.com 2024-07-17 11:08 
EDT---


This patch is in the queue and will address the ZFS build problem.

** Attachment added: "Fix __pa/__va for modules under non-GPL licenses"
   
https://bugs.launchpad.net/bugs/2071774/+attachment/5798094/+files/1502-s390-setup-Fix-__pa-__va-for-modules-under-non-GPL-l.patch

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  zfs-dkms FTBFS on Linux 6.10/s390x

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[Bug 2073372] Re: [UBUNTU 20.04] s390x: z13 wcsncmp implementation segfaults if n=1

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--- Comment on attachment From s...@de.ibm.com 2024-07-17 07:13 EDT---


(In reply to comment #5)
> Hello and thanks for having reported this, actually shared this with us.
> 
> Is there a simple reproducer or test case that could be used to provoke the
> segfault and with that to verify that it got fixed with the commit included?

Florian Weimer has listed the single case which results in the segfault here:
Bug 31934 - wcsncmp crash on s390x on vlbb instruction
https://sourceware.org/bugzilla/show_bug.cgi?id=31934#c0

This was extracted from his full-tests here:
[PATCH] manual: Document a GNU extension for strncmp/wcsncmp

The attached file is a standalone version of this wcsncmp test which does not 
rely on the glibc-internals. It just calls wcsncmp.

** Bug watch added: Sourceware.org Bugzilla #31934
   https://sourceware.org/bugzilla/show_bug.cgi?id=31934

** Attachment added: "Standalone test"
   
https://bugs.launchpad.net/bugs/2073372/+attachment/5798051/+files/tst-bz31934-wcsncmp-standalone.c

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Title:
  [UBUNTU 20.04] s390x: z13 wcsncmp implementation segfaults if n=1

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[Bug 2073372] [NEW] [UBUNTU 20.04] s390x: z13 wcsncmp implementation segfaults if n=1

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Public bug reported:

The >=z13 wcsncmp implementation segfaults if n=1 and there is only one
character (equal on both strings) before the page end. Then it loads and
compares one character and misses to check n again. The following load
fails.

This issue was reported here:
Bug 31934 - wcsncmp crash on s390x on vlbb instruction
https://sourceware.org/bugzilla/show_bug.cgi?id=31934

And fixed upstream (first in glibc 2.40):
s390x: Fix segfault in wcsncmp [BZ #31934]
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=9b7651410375ec8848a1944992d663d514db4ba7

This Fix was cherry-picked to the current branches glibc 2.32-39:
- 2.39: commit 5c46e6b66636be0010e9a732d5ba1e65ebd54687
- 2.38: commit 712453634c8efd71a9b3ff0122145a9e90e9955c
- 2.37: commit 340ca2d5148371614c234068f430c19293f962dc
- 2.36: commit a70c55a91b2b361f43e4142aadf86f22af57d406
- 2.35: commit c7cd62653850135bc880688a78104dbf77cf8121
- 2.34: commit 87fa7bfb84895bb517beb8aaf92bd45b829daabb
- 2.33: commit 5f08d1df2c07904c1dc98bdf2b363c65874266f7
- 2.32: commit 5ad449c398a845a9c84808e4ac603beaa1006909

In case somebody needs the fix for older glibc releases (issue was
introduced with glibc 2.23), feel free to just cherry-pick it. Note,
that the file was moved from sysdeps/s390/multiarch/wcsncmp-vx.S to
sysdeps/s390/wcsncmp-vx.S with commit
e9873e1d47c870d707117ada91c9be21e3bf1537 (in glibc 2.29), but the
implementation does not differ.

** Affects: linux (Ubuntu)
 Importance: Undecided
 Assignee: Skipper Bug Screeners (skipper-screen-team)
 Status: New


** Tags: architecture-s39064 bugnameltc-207895 severity-medium 
targetmilestone-inin---

** Tags added: architecture-s39064 bugnameltc-207895 severity-medium
targetmilestone-inin---

** Changed in: ubuntu
 Assignee: (unassigned) => Skipper Bug Screeners (skipper-screen-team)

** Package changed: ubuntu => linux (Ubuntu)

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Title:
  [UBUNTU 20.04] s390x: z13 wcsncmp implementation segfaults if n=1

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[Bug 2044104] Comment bridged from LTC Bugzilla

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Modify /usr/share/initramfs-tools/hooks/udev (shipped by udev, source:
system) to not copy the udev rules generated by chzdev. So changing:

Where are the initramfs-tools gone? Added them again ...

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Title:
  [UBUNTU 20.04] chzdev -e is rebuilding initramfs even with
  zdev:early=0 set

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[Bug 1982335] Comment bridged from LTC Bugzilla

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--- Comment From ar...@de.ibm.com 2024-07-11 12:51 EDT---
> [...]
> A test build of the new valgrind version is now available here:
> https://launchpad.net/~fheimes/+archive/ubuntu/lp1982335

The build contains the requested support, and I didn't notice any
issues.  Looks good to me.

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Title:
  [24.10 FEAT] Valgrind: Support for new IBM Z Hardware (IBM z16)

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[Bug 2071774] Re: zfs-dkms FTBFS on Linux 6.10/s390x

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** Tags added: architecture-s39064 bugnameltc-207402 severity-medium
targetmilestone-inin---

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Title:
  zfs-dkms FTBFS on Linux 6.10/s390x

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[Bug 2064538] Re: Revert back frame pointers for s390x (remove -fno-omit-framepointer but use -mbackchain)

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** Tags added: architecture-s39064 bugnameltc-207400 severity-medium
targetmilestone-inin---

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Title:
  Revert back frame pointers for s390x (remove -fno-omit-framepointer
  but use -mbackchain)

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[Bug 2072641] Comment bridged from LTC Bugzilla

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--- Comment From boris.m...@de.ibm.com 2024-07-10 06:48 EDT---
The bug was introduced with kernel 5.14

The available patch (see upstream-ID in comment above) has been added to
stable for 5.15. which should help to get picked up by Jammy and later
releases.

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Title:
  [UBUNTU 22.04] KVM: s390: unhandled guest LPSWEY instruction

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[Bug 2072641] [NEW] [UBUNTU 22.04] KVM: s390: unhandled guest LPSWEY instruction

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Public bug reported:

Description:   KVM: s390: unhandled guest LPSWEY instruction

Symptom:   guest kernel oops on LPSWEY instruction

Problem:   in rare cases like machine check injection with
   PSW disabled, all load PSW instructions are
   intercepted. LPSW and LPSWE are handled by KVM but
   not the new LPSWEY

Solution:  Provide an LPSWEY handler in KVM.

Reproduction:  hotplug a device while a CPU is disabled for machine
   checks, e.g. during early boot

Upstream-ID:   4c6abb7f7b349f00c0f7ed5045bf67759c012892

Preventive:yes
Reported:  upstream
Component: kernel

** Affects: linux (Ubuntu)
 Importance: Undecided
 Assignee: Skipper Bug Screeners (skipper-screen-team)
 Status: New


** Tags: architecture-s39064 bugnameltc-207398 severity-medium 
targetmilestone-inin---

** Tags added: architecture-s39064 bugnameltc-207398 severity-medium
targetmilestone-inin---

** Changed in: ubuntu
 Assignee: (unassigned) => Skipper Bug Screeners (skipper-screen-team)

** Package changed: ubuntu => linux (Ubuntu)

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Title:
  [UBUNTU 22.04] KVM: s390: unhandled guest LPSWEY instruction

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[Bug 2062556] Comment bridged from LTC Bugzilla

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--- Comment From kowshik.j...@in.ibm.com 2024-07-09 02:18 EDT---
I have verified the patch. It is working as expected. Please get the patch 
included in the upcoming build.

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Title:
  [Ubuntu-24.04] Hugepage memory is not getting released even after
  destroying the guest!

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[Bug 2060039] Comment bridged from LTC Bugzilla

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--- Comment From hbath...@in.ibm.com 2024-07-08 04:19 EDT---
Fix accepted upstream (powerpc/next):

https://git.kernel.org/powerpc/c/353d7a84c214f
("powerpc/64s/radix/kfence: map __kfence_pool at page granularity")

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Title:
  [Ubuntu-24.04] FADump with recommended crash size is making the L1
  hang

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[Bug 2068577] Comment bridged from LTC Bugzilla

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--- Comment From vanessa.ba...@ibm.com 2024-07-03 13:42 EDT---
Thank you! Will test and update results here :)

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Title:
  [UBUNTU 24.04] Running sosreport causes the system to crash and
  produce a dump

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[Bug 2071471] Comment bridged from LTC Bugzilla

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--- Comment From niklas.schne...@ibm.com 2024-07-03 06:53 EDT---
(In reply to comment #11)
> Looks like it's not sufficient to have IOMMU_DEFAULT_DMA_LAZY=y only
> in addition IOMMU_DEFAULT_DMA_STRICT=n seems to be needed on top (otherwise
> the build failed for me).
> (Which I think is not super great upstream, one option should be fine --
> with the two kernel options, there are now two unspecific cases: both n and
> both y - anyway ...)
>
> I did a test build in PPA here:
> https://launchpad.net/~fheimes/+archive/ubuntu/lp2071471
> would be great if this can be tried.

I gave this a quick test on a z/VM with a RoCE VF.

root@redacted:~# uname -a
Linux redacted 6.8.0-38-generic #38~lp2071471-Ubuntu SMP Wed Jul  3 07:09:08 
UTC 2024 s390x s390x s390x GNU/Linux
root@redacted:~# cat /sys/bus/pci/devices/18d1\:00\:00.0/iommu_group/type
DMA-FQ

So this uses the DMA Flush Queue mechanism as it should. Thanks!

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Title:
  [UBUNTU 24.04] IOMMU DMA mode changed in kernel config causes massive
  throughput degradation for PCI-related network workloads

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