[Bug 1806104] Re: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x40000000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest bac
** Changed in: ubuntu-power-systems Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806104 Title: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x4000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest backed by Hugepages. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1806104/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1806104] Re: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x40000000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest bac
This bug was fixed in the package qemu - 1:2.11+dfsg-1ubuntu7.10 --- qemu (1:2.11+dfsg-1ubuntu7.10) bionic; urgency=medium * d/p/ubuntu/lp-1806104-spapr_pci-Remove-unhelpful-pagesize-warning.patch: remove misleading page size warning on qemu-system-ppc64 (LP: #1806104) * d/p/ubuntu/lp-1812384-s390x-Return-specification-exception.patch: ensure a proper exception on unknown diag 308 subcodes (LP: #1812384) * d/p/ubuntu/lp-1809083-*: fix backward migration on ppc64el (LP: #1809083) -- Christian Ehrhardt Thu, 31 Jan 2019 14:07:51 +0100 ** Changed in: qemu (Ubuntu Bionic) Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806104 Title: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x4000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest backed by Hugepages. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1806104/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1806104] Re: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x40000000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest bac
@SRU Team - I beg your pardon and wanted to make clear that I try to care for my SRUs. This looks all good except autopkgtest failing for other reasons. Those are handled in bug 1817721. IMHO: Feel free to release this as-is and/or to help getting the MP associated to 1817721 accepted. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806104 Title: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x4000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest backed by Hugepages. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1806104/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1806104] Re: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x40000000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest bac
Tested with the config described in the bug: System page size 0x4000 is not enabled in page_size_mask (0x11000). Performance may be slow Updated to proposed and restarted the same guest, no such message in /var/log/libvirt/qemu/b-huge.log where you'd usually see it. Therefore setting verified. ** Tags removed: verification-needed verification-needed-bionic ** Tags added: verification-done verification-done-bionic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806104 Title: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x4000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest backed by Hugepages. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1806104/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1806104] Re: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x40000000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest bac
** Changed in: ubuntu-power-systems Status: In Progress => Fix Committed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806104 Title: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x4000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest backed by Hugepages. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1806104/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1806104] Re: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x40000000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest bac
Hello bugproxy, or anyone else affected, Accepted qemu into bionic-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/qemu/1:2.11+dfsg- 1ubuntu7.10 in a few hours, and then in the -proposed repository. Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users. If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested and change the tag from verification-needed-bionic to verification-done-bionic. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-bionic. In either case, without details of your testing we will not be able to proceed. Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping! N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days. ** Changed in: qemu (Ubuntu Bionic) Status: In Progress => Fix Committed ** Tags removed: verification-done ** Tags added: verification-needed verification-needed-bionic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806104 Title: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x4000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest backed by Hugepages. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1806104/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1806104] Re: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x40000000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest bac
** Changed in: qemu (Ubuntu Bionic) Assignee: (unassigned) => Christian Ehrhardt (paelzer) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806104 Title: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x4000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest backed by Hugepages. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1806104/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1806104] Re: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x40000000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest bac
This bug was fixed in the package qemu - 1:2.12+dfsg-3ubuntu8.3 --- qemu (1:2.12+dfsg-3ubuntu8.3) cosmic; urgency=medium * d/p/ubuntu/lp-1806104-spapr_pci-Remove-unhelpful-pagesize-warning.patch: remove misleading page size warning on qemu-system-ppc64 (LP: #1806104) * d/p/ubuntu/lp-1812384-s390x-Return-specification-exception.patch: ensure a proper exception on unknown diag 308 subcodes (LP: #1812384) * d/p/ubuntu/lp-1809083-*: fix backward migration on ppc64el (LP: #1809083) -- Christian Ehrhardt Thu, 31 Jan 2019 14:28:19 +0100 ** Changed in: qemu (Ubuntu Cosmic) Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806104 Title: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x4000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest backed by Hugepages. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1806104/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1806104] Re: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x40000000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest bac
Started on Disco with the config described in the SRU header.
2019-02-07T09:08:54.779681Z qemu-system-ppc64: warning: System page size
0x4000 is not enabled in page_size_mask (0x11000). Performance may
be slow
Installing Cosmic qemu from proposed worked fine
$ sudo apt install $(apt list --upgradable 2>&1 | awk '/^qemu/ {gsub("/.*","");
print $0}' | xargs)
Reading package lists... Done
Building dependency tree
Reading state information... Done
Suggested packages:
samba vde2 openbios-ppc openhackware debootstrap
The following packages will be upgraded:
qemu-block-extra qemu-kvm qemu-system-common qemu-system-data qemu-system-gui
qemu-system-ppc qemu-utils
7 upgraded, 0 newly installed, 0 to remove and 16 not upgraded.
Need to get 10.3 MB of archives.
After this operation, 0 B of additional disk space will be used.
Get:1 http://ports.ubuntu.com/ubuntu-ports cosmic-proposed/main ppc64el
qemu-utils ppc64el 1:2.12+dfsg-3ubuntu8.3 [1055 kB]
Get:2 http://ports.ubuntu.com/ubuntu-ports cosmic-proposed/main ppc64el
qemu-system-common ppc64el 1:2.12+dfsg-3ubuntu8.3 [32.4 kB]
Get:3 http://ports.ubuntu.com/ubuntu-ports cosmic-proposed/main ppc64el
qemu-block-extra ppc64el 1:2.12+dfsg-3ubuntu8.3 [42.4 kB]
Get:4 http://ports.ubuntu.com/ubuntu-ports cosmic-proposed/main ppc64el
qemu-system-data all 1:2.12+dfsg-3ubuntu8.3 [703 kB]
Get:5 http://ports.ubuntu.com/ubuntu-ports cosmic-proposed/main ppc64el
qemu-kvm ppc64el 1:2.12+dfsg-3ubuntu8.3 [12.7 kB]
Get:6 http://ports.ubuntu.com/ubuntu-ports cosmic-proposed/main ppc64el
qemu-system-ppc ppc64el 1:2.12+dfsg-3ubuntu8.3 [8429 kB]
Get:7 http://ports.ubuntu.com/ubuntu-ports cosmic-proposed/main ppc64el
qemu-system-gui ppc64el 1:2.12+dfsg-3ubuntu8.3 [35.0 kB]
Fetched 10.3 MB in 7s (1440 kB/s)
(Reading database ... 114642 files and directories currently installed.)
Preparing to unpack .../0-qemu-utils_1%3a2.12+dfsg-3ubuntu8.3_ppc64el.deb ...
Unpacking qemu-utils (1:2.12+dfsg-3ubuntu8.3) over (1:2.12+dfsg-3ubuntu8.2) ...
Preparing to unpack
.../1-qemu-system-common_1%3a2.12+dfsg-3ubuntu8.3_ppc64el.deb ...
Unpacking qemu-system-common (1:2.12+dfsg-3ubuntu8.3) over
(1:2.12+dfsg-3ubuntu8.2) ...
Preparing to unpack .../2-qemu-block-extra_1%3a2.12+dfsg-3ubuntu8.3_ppc64el.deb
...
Unpacking qemu-block-extra:ppc64el (1:2.12+dfsg-3ubuntu8.3) over
(1:2.12+dfsg-3ubuntu8.2) ...
Preparing to unpack .../3-qemu-system-data_1%3a2.12+dfsg-3ubuntu8.3_all.deb ...
Unpacking qemu-system-data (1:2.12+dfsg-3ubuntu8.3) over
(1:2.12+dfsg-3ubuntu8.2) ...
Preparing to unpack .../4-qemu-kvm_1%3a2.12+dfsg-3ubuntu8.3_ppc64el.deb ...
Unpacking qemu-kvm (1:2.12+dfsg-3ubuntu8.3) over (1:2.12+dfsg-3ubuntu8.2) ...
Preparing to unpack .../5-qemu-system-ppc_1%3a2.12+dfsg-3ubuntu8.3_ppc64el.deb
...
Unpacking qemu-system-ppc (1:2.12+dfsg-3ubuntu8.3) over
(1:2.12+dfsg-3ubuntu8.2) ...
Preparing to unpack .../6-qemu-system-gui_1%3a2.12+dfsg-3ubuntu8.3_ppc64el.deb
...
Unpacking qemu-system-gui (1:2.12+dfsg-3ubuntu8.3) over
(1:2.12+dfsg-3ubuntu8.2) ...
Setting up qemu-system-data (1:2.12+dfsg-3ubuntu8.3) ...
Setting up qemu-block-extra:ppc64el (1:2.12+dfsg-3ubuntu8.3) ...
Setting up qemu-utils (1:2.12+dfsg-3ubuntu8.3) ...
Processing triggers for man-db (2.8.4-2) ...
Setting up qemu-system-gui (1:2.12+dfsg-3ubuntu8.3) ...
Setting up qemu-system-common (1:2.12+dfsg-3ubuntu8.3) ...
Setting up qemu-system-ppc (1:2.12+dfsg-3ubuntu8.3) ...
Setting up qemu-kvm (1:2.12+dfsg-3ubuntu8.3) ...
Retest the above
- no such warning -
Full log of the guest on start now:
2019-02-07 09:23:22.608+: starting up libvirt version: 4.6.0, package:
2ubuntu3.2 (Christian Ehrhardt Thu, 06 Dec
2018 09:16:13 +0100), qemu version: 2.12.0Debian 1:2.12+dfsg-3ubuntu8.3,
kernel: 4.18.0-14-generic, hostname: lewis.maas
LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
QEMU_AUDIO_DRV=none /usr/bin/kvm -name guest=disco,debug-threads=on -S -object
secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-3-disco/master-key.aes
-machine pseries-bionic,accel=kvm,usb=off,dump-guest-core=off -m 1024
-mem-prealloc -mem-path /dev/hugepages/libvirt/qemu/3-disco -realtime mlock=off
-smp 4,sockets=4,cores=1,threads=1 -uuid e75c07f9-e690-4a43-9a89-6a82f9f637c7
-no-user-config -nodefaults -chardev socket,id=charmonitor,fd=23,server,nowait
-mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown
-boot strict=on -device qemu-xhci,id=usb,bus=pci.0,addr=0x2 -drive
file=/var/lib/uvtool/libvirt/images/disco.qcow,format=qcow2,if=none,id=drive-virtio-disk0
-device
[Bug 1806104] Re: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x40000000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest bac
Hello bugproxy, or anyone else affected, Accepted qemu into cosmic-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/qemu/1:2.12+dfsg- 3ubuntu8.3 in a few hours, and then in the -proposed repository. Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users. If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested and change the tag from verification-needed-cosmic to verification-done-cosmic. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-cosmic. In either case, without details of your testing we will not be able to proceed. Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping! N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days. ** Changed in: qemu (Ubuntu Cosmic) Status: In Progress => Fix Committed ** Tags added: verification-needed verification-needed-cosmic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806104 Title: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x4000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest backed by Hugepages. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1806104/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1806104] Re: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x40000000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest bac
** Changed in: qemu (Ubuntu Bionic) Status: Triaged => In Progress ** Changed in: qemu (Ubuntu Cosmic) Status: Triaged => In Progress -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806104 Title: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x4000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest backed by Hugepages. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1806104/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1806104] Re: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x40000000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest bac
FYI: All Pre-Tests and Review complete - Uploaded to the SRU queue of Bionic and Cosmic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806104 Title: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x4000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest backed by Hugepages. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1806104/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1806104] Re: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x40000000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest bac
I tested the SRU testcase 1. it triggers as expected 2. the builds from the PPA fix it as expected That said this would be ready to go to the SRU queue, but there are other bundled cases that I need to test first. ** Description changed: [Impact] * There is a message which was identified more confusing and misleading than helpful that should be dropped to avoid users being unsure about it. * Fix: Backport the upstream change dropping the message [Test Case] - * Run huge page backed power8 (cpu model on qemu) guest on power9 system - and check guest log in /var/log/libvirt/qemu/ + * Run huge page backed guest on a power9 system + 1048576 + 1048576 + + + + + +Make sure to have huge pages available e.g. via boot arg: + default_hugepagesz=1G hugepagesz=1G hugepages=8 +Then start the guest and check guest log in +/var/log/libvirt/qemu/ + +Without fix: +2019-02-01T11:39:18.295357Z qemu-system-ppc64: System page size +0x4000 is not enabled in page_size_mask (0x11000). Performance may +be slow + +With the fix this message should not appear. [Regression Potential] * This drops a warning (that was almost never useful and often confusing). But it had no functional change to the behavior, therefore no regression should be seen at all (unless somebody missing the old message counts). [Other Info] * n/a Problem : The following warning message is noticed when booting guest backed by hugepages. "2018-03-28T07:45:18.500173Z qemu-system-ppc64: System page size 0x4000 is not enabled in page_size_mask (0x11000). Performance may be slow" Guest bootsup, however the warning message is see in qemu.log. Test Environment : Boston-LC Linux : 4.15.0-12-generic NAME="Ubuntu" VERSION="18.04 LTS (Bionic Beaver)" ID=ubuntu Guest is backed by hugepages. Guest xml Host Hugepages. cat /sys/kernel/mm/hugepages/hugepages-1048576kB/nr_hugepages 4 One the guest is started, we see the warning message in the qemu.log cat /var/log/libvirt/qemu/Hari_compact_mode.log 2018-03-28T07:45:18.370804Z qemu-system-ppc64: -chardev pty,id=charserial0: char device redirected to /dev/pts/2 (label charserial0) 2018-03-28T07:45:18.500173Z qemu-system-ppc64: System page size 0x4000 is not enabled in page_size_mask (0x11000). Performance may be slow Leonardo/Breno, Is it possible we can request canonical to backport the below commit into Ubuntu 18.04 level ? https://github.com/qemu/qemu/commit/30f79dc13f116a79ff45d37ad0f5c035012064a7 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806104 Title: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x4000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest backed by Hugepages. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1806104/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1806104] Re: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x40000000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest bac
FYI - the fix for this bug as an SRUs is ready and testable from a PPA for Cosmic [1] and Bionic [2]. I'm gonna check the test instructions myself by testing that from the PPA before uploading to the SRU queue. In addition I'll push these PPAs through the automated regression tests for qemu/libvirt. [1]: https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu/3620 [2]: https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu/3621 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806104 Title: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x4000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest backed by Hugepages. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1806104/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1806104] Re: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x40000000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest bac
** Merge proposal linked: https://code.launchpad.net/~paelzer/ubuntu/+source/qemu/+git/qemu/+merge/362539 ** Merge proposal linked: https://code.launchpad.net/~paelzer/ubuntu/+source/qemu/+git/qemu/+merge/362540 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806104 Title: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x4000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest backed by Hugepages. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1806104/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1806104] Re: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x40000000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest bac
** Description changed: [Impact] * There is a message which was identified more confusing and misleading than helpful that should be dropped to avoid users being unsure about it. - * Fix: Just apply upstream change dropping the message + * Fix: Backport the upstream change dropping the message [Test Case] - * Run huge page backed power8 (cpu model on qemu) guest on power9 system -and check guest log in /var/log/libvirt/qemu/ - - * these should allow someone who is not familiar with the affected - package to reproduce the bug and verify that the updated package fixes - the problem. + * Run huge page backed power8 (cpu model on qemu) guest on power9 system + and check guest log in /var/log/libvirt/qemu/ [Regression Potential] * This drops a warning (that was almost never useful and often confusing). But it had no functional change to the behavior, therefore no regression should be seen at all (unless somebody missing the old message counts). [Other Info] * n/a Problem : The following warning message is noticed when booting guest backed by hugepages. "2018-03-28T07:45:18.500173Z qemu-system-ppc64: System page size 0x4000 is not enabled in page_size_mask (0x11000). Performance may be slow" Guest bootsup, however the warning message is see in qemu.log. Test Environment : Boston-LC Linux : 4.15.0-12-generic NAME="Ubuntu" VERSION="18.04 LTS (Bionic Beaver)" ID=ubuntu Guest is backed by hugepages. Guest xml Host Hugepages. cat /sys/kernel/mm/hugepages/hugepages-1048576kB/nr_hugepages 4 One the guest is started, we see the warning message in the qemu.log cat /var/log/libvirt/qemu/Hari_compact_mode.log 2018-03-28T07:45:18.370804Z qemu-system-ppc64: -chardev pty,id=charserial0: char device redirected to /dev/pts/2 (label charserial0) 2018-03-28T07:45:18.500173Z qemu-system-ppc64: System page size 0x4000 is not enabled in page_size_mask (0x11000). Performance may be slow Leonardo/Breno, Is it possible we can request canonical to backport the below commit into Ubuntu 18.04 level ? https://github.com/qemu/qemu/commit/30f79dc13f116a79ff45d37ad0f5c035012064a7 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806104 Title: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x4000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest backed by Hugepages. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1806104/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1806104] Re: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x40000000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest bac
** Changed in: ubuntu-power-systems Status: Triaged => In Progress -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806104 Title: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x4000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest backed by Hugepages. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1806104/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1806104] Re: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x40000000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest bac
This bug was fixed in the package qemu - 1:3.1+dfsg-2ubuntu1 --- qemu (1:3.1+dfsg-2ubuntu1) disco; urgency=medium * Merge with Debian testing, Among many other things this fixes LP Bugs: LP: #1806104 - fix misleading page size error on ppc64el LP: #1782205 - SnowRidge enabled new ISAs LP: #1786956 - upgrade to qemu >= 3.0 LP: #1809083 - Backward migration to Xenial on ppc64el LP: #1803315 - s390x Huge page enablement LP: #1657409 - enable virglrenderer Remaining Changes: - qemu-kvm to systemd unit - d/qemu-kvm-init: script for QEMU KVM preparation modules, ksm, hugepages and architecture specifics - d/qemu-kvm.service: systemd unit to call qemu-kvm-init - d/qemu-system-common.install: install systemd unit and helper script - d/qemu-system-common.maintscript: clean old sysv and upstart scripts - d/qemu-system-common.qemu-kvm.default: defaults for /etc/default/qemu-kvm - d/rules: install /etc/default/qemu-kvm - Enable nesting by default - d/qemu-system-x86.modprobe: set nested=1 module option on intel. (is default on amd) - d/qemu-system-x86.postinst: re-load kvm_intel.ko if it was loaded without nested=1 - d/p/ubuntu/expose-vmx_qemu64cpu.patch: expose nested kvm by default in qemu64 cpu type. - d/p/ubuntu/enable-svm-by-default.patch: Enable nested svm by default in qemu64 on amd - d/qemu-system-x86.README.Debian: document intention of nested being default is comfort, not full support - Distribution specific machine type (LP: 1304107 1621042 1776189 1761372) - d/p/ubuntu/define-ubuntu-machine-types.patch: define distro machine types - d/qemu-system-x86.NEWS Info on fixed machine type defintions for host-phys-bits=true (LP: 1776189) - add an info about -hpb machine type in debian/qemu-system-x86.NEWS - d/p/ubuntu/lp-1761372-*: provide pseries-bionic-2.11-sxxm type as convenience with all meltdown/spectre workarounds enabled by default. (LP: 1761372). - improved dependencies - Make qemu-system-common depend on qemu-block-extra - Make qemu-utils depend on qemu-block-extra - let qemu-utils recommend sharutils - s390x support - Create qemu-system-s390x package - Enable numa support for s390x - arch aware kvm wrappers - d/control: update VCS links (updated to match latest Ubuntu) - qemu-guest-agent: freeze-hook fixes (LP: 1484990) - d/qemu-guest-agent.install: provide /etc/qemu/fsfreeze-hook - d/qemu-guest-agent.dirs: provide /etc/qemu/fsfreeze-hook.d - d/control-in: enable RDMA support in qemu (LP: 1692476) - enable RDMA config option - add libibumad-dev build-dep - tolerate ipxe size change on migrations to >=18.04 (LP: 1713490) - d/p/ubuntu/pre-bionic-256k-ipxe-efi-roms.patch: old machine types reference 256k path - d/control-in: depend on ipxe-qemu-256k-compat-efi-roms to be able to handle incoming migrations from former releases. - d/control-in: Disable capstone disassembler library support (universe) * Added Changes: - d/p/ubuntu/define-ubuntu-machine-types.patch: update machine type changes for qemu 3.1 in the Ubuntu Disco release - d/p/ubuntu/lp-1759509-* fix waking up VMs from dompmsuspend (LP: #1759509) - Move s390x roms to a new qemu-system-data-s390x - d/qemu-system-data.install: install s390x roms as architecture:all in qemu-system-data - d/rules: build s390-ccw.img with upstream Makefile - d/rules: build s390x-netboot.img with upstream Makefile - d/p/ubuntu/lp-1790901-partial-SLOF-for-s390x-netboot.patch: bring back some SLOF bits stripped in DFSG to be able to build s390x-netboot roms As that hack to build s390-ccw.img rom can't build s390x-netboot.img replace it with a build-indep using the upstream makefiles. This is less prone to miss future changes/fixes that are done to the makefiles - d/control-in: add breaks/replaces for moving s390x roms from qemu-system-s390x to qemu-system-data - remove /dev/kvm permission handling (moved to systemd 239-6) (#892945) [From not yet uploaded Debian branch] - d/p/debianize-qemu-guest-service.patch: fix path of qemu-ga (Closes: #918378) - d/rules: fix qemu-kvm service for debhelper compat >=12 - d/p/ubuntu/Revert-target-i386-kvm-add-VMX-migration-blocker.patch: avoid misdetection of simplified nesting blocking all migrations - d/p/ubuntu/lp-1812384-s390x-Return-specification-exception-for- unimplement.patch: properly return archicture defined exception on bad subcodes of diag 308 (LP: #1812384) * Dropped Changes: - Include s390-ccw.img firmware (old style native build) - d/rules enable install s390x-netboot.img (old style native build) -
[Bug 1806104] Re: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x40000000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest bac
Hi, dfor 19.04 it should be fixed once we merged qemu 3.1 which is the current plan, but for SRUs I'm not so sure. The backport isn't hard at all, but removing a warning is certainly not worth an SRU cycle and dropping an update of qemu to everybody out there. How about keeping it open for now and bundling it with whatever the next SRU will be? Would that be ok for you? ** Also affects: qemu (Ubuntu Cosmic) Importance: Undecided Status: New ** Also affects: qemu (Ubuntu Bionic) Importance: Undecided Status: New ** Tags added: qemu-19.04 ** Changed in: qemu (Ubuntu Bionic) Status: New => Triaged ** Changed in: qemu (Ubuntu Cosmic) Status: New => Triaged ** Changed in: qemu (Ubuntu) Status: New => Triaged ** Changed in: qemu (Ubuntu) Importance: Undecided => Medium ** Changed in: qemu (Ubuntu Bionic) Importance: Undecided => Low ** Changed in: qemu (Ubuntu Cosmic) Importance: Undecided => Low ** Description changed: + [Impact] + + * There is a message which was identified more confusing and misleading +than helpful that should be dropped to avoid users being unsure about +it. + + * Fix: Just apply upstream change dropping the message + + [Test Case] + + * Run power8 (cpu model on qemu) guest on power9 system and check guest +log in /var/log/libvirt/qemu/ + + * these should allow someone who is not familiar with the affected +package to reproduce the bug and verify that the updated package fixes +the problem. + + [Regression Potential] + + * This drops a warning (that was almost never useful and often +confusing). But it had no functional change to the behavior, +therefore no regression should be seen at all (unless somebody +missing the old message counts). + + [Other Info] + + * n/a + + + Problem : - The following warning message is noticed when booting guest backed by hugepages. + The following warning message is noticed when booting guest backed by hugepages. "2018-03-28T07:45:18.500173Z qemu-system-ppc64: System page size 0x4000 is not enabled in page_size_mask (0x11000). Performance may be slow" Guest bootsup, however the warning message is see in qemu.log. - Test Environment : Boston-LC Linux : 4.15.0-12-generic NAME="Ubuntu" VERSION="18.04 LTS (Bionic Beaver)" ID=ubuntu - Guest is backed by hugepages. Guest xml - - - - - + + + + + Host Hugepages. cat /sys/kernel/mm/hugepages/hugepages-1048576kB/nr_hugepages 4 One the guest is started, we see the warning message in the qemu.log cat /var/log/libvirt/qemu/Hari_compact_mode.log 2018-03-28T07:45:18.370804Z qemu-system-ppc64: -chardev pty,id=charserial0: char device redirected to /dev/pts/2 (label charserial0) 2018-03-28T07:45:18.500173Z qemu-system-ppc64: System page size 0x4000 is not enabled in page_size_mask (0x11000). Performance may be slow Leonardo/Breno, Is it possible we can request canonical to backport the below commit into Ubuntu 18.04 level ? https://github.com/qemu/qemu/commit/30f79dc13f116a79ff45d37ad0f5c035012064a7 ** Description changed: [Impact] - * There is a message which was identified more confusing and misleading -than helpful that should be dropped to avoid users being unsure about -it. + * There is a message which was identified more confusing and misleading + than helpful that should be dropped to avoid users being unsure about + it. - * Fix: Just apply upstream change dropping the message + * Fix: Just apply upstream change dropping the message [Test Case] - * Run power8 (cpu model on qemu) guest on power9 system and check guest -log in /var/log/libvirt/qemu/ + * Run huge page backed power8 (cpu model on qemu) guest on power9 system +and check guest log in /var/log/libvirt/qemu/ - * these should allow someone who is not familiar with the affected -package to reproduce the bug and verify that the updated package fixes -the problem. + * these should allow someone who is not familiar with the affected + package to reproduce the bug and verify that the updated package fixes + the problem. [Regression Potential] - * This drops a warning (that was almost never useful and often -confusing). But it had no functional change to the behavior, -therefore no regression should be seen at all (unless somebody -missing the old message counts). + * This drops a warning (that was almost never useful and often + confusing). But it had no functional change to the behavior, + therefore no regression should be seen at all (unless somebody + missing the old message counts). [Other Info] - - * n/a + + * n/a Problem : The following warning message is noticed when booting guest backed by hugepages. "2018-03-28T07:45:18.500173Z
[Bug 1806104] Re: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x40000000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest bac
** Also affects: ubuntu-power-systems Importance: Undecided Status: New ** Changed in: ubuntu-power-systems Status: New => Triaged ** Changed in: ubuntu-power-systems Importance: Undecided => Medium ** Changed in: ubuntu-power-systems Assignee: (unassigned) => Canonical Server Team (canonical-server) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806104 Title: [Ubuntu-18.04][LTC-Test] Warning: "qemu-system-ppc64: System page size 0x4000 is not enabled in page_size_mask (0x11000). Performance may be slow" Noticed while booting guest backed by Hugepages. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1806104/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
