[Bug 1921665] Re: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned
This bug was fixed in the package qemu - 1:4.2-3ubuntu6.15 --- qemu (1:4.2-3ubuntu6.15) focal; urgency=medium * d/p/u/lp-1921468-*: fix issues handling boot menu index on s390x (LP: #1921468) * d/p/u/lp-1887535-configure-replace-enable-disable-git-update-with-wit.patch, d/rules: Backport --with-git-submodules param so building from git repo doesn't fail (LP: #1887535) * Fix byte aligned writes when writing to image stored on NFS server, as they aren't required to be 4kib aligned. (LP: #1921665) - d/p/u/lp-1921665-1-block-Require-aligned-image-size-to-avoid-assert.patch - d/p/u/lp-1921665-2-file-posix-Allow-byte-aligned-O_DIRECT-with-NFS.patch -- Christian Ehrhardt Fri, 26 Mar 2021 10:38:47 +0100 ** Changed in: qemu (Ubuntu Focal) 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/1921665 Title: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1921665/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1921665] Re: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned
This bug was fixed in the package qemu - 1:5.0-5ubuntu9.7 --- qemu (1:5.0-5ubuntu9.7) groovy; urgency=medium * d/p/u/lp-1921468-*: fix issues handling boot menu index on s390x (LP: #1921468) * d/p/u/lp-1887535-configure-replace-enable-disable-git-update-with-wit.patch, d/rules: Backport --with-git-submodules param so building from git repo doesn't fail (LP: #1887535) * Fix byte aligned writes when writing to image stored on NFS server, as they aren't required to be 4kib aligned. (LP: #1921665) - d/p/u/lp-1921665-1-block-Require-aligned-image-size-to-avoid-assert.patch - d/p/u/lp-1921665-2-file-posix-Allow-byte-aligned-O_DIRECT-with-NFS.patch -- Christian Ehrhardt Fri, 26 Mar 2021 10:36:31 +0100 ** Changed in: qemu (Ubuntu Groovy) 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/1921665 Title: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1921665/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1921665] Re: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned
FYI - autopkgtest issues resolved as well now (as assumed it was due to flaky tests) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1921665 Title: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1921665/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1921665] Re: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned
Thank you mruffel for the verifications! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1921665 Title: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1921665/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1921665] Re: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned
Performing verification for Focal.
I installed qemu 4.2-3ubuntu6.14 from -updates with the usual KVM stack
command:
$ sudo apt-get install qemu-kvm libvirt-daemon-system libvirt-clients
bridge-utils
$ sudo reboot
>From there I installed and configured a NFS server:
$ sudo -s
$ sudo apt install nfs-kernel-server
$ mkdir -p /export
$ chown libvirt-qemu:kvm /export
$ echo "/export 127.0.0.1(rw,sync,no_subtree_check)" >> /etc/exports
$ systemctl restart nfs-server
Created a disk image:
$ truncate -s 100 /export/reproducer-centos.img
$ chown libvirt-qemu:kvm /export/reproducer-centos.img
$ chmod 666 /export/reproducer-centos.img
and mounted the NFS server:
$ mount 127.0.0.1:/export /mnt -o
bg,noacl,noatime,nolock,proto=udp,vers=3,noauto
I downloaded the CentOS image:
$ wget
https://vault.centos.org/7.2.1511/isos/x86_64/CentOS-7-x86_64-Minimal-1511.iso
and started the VM with the following QEMU command line:
$ sudo qemu-system-x86_64 -cdrom ./CentOS-7-x86_64-Minimal-1511.iso -m
1024 -blockdev '{"driver":"file","filename":"/mnt/reproducer-centos.img
","node-name":"disk0","cache":{"direct":true}}' -device virtio-blk-
pci,drive=disk0 -vnc 0.0.0.0:0 -enable-kvm
On my host I opened Reminna, connected to a VNC connection on :5900.
The CentOS installer eventually showed up, and I followed the steps:
Click Continue at the language/keyboard selection screen.
Click Installation Destination.
Click Done (no changes needed on that screen).
Click Begin Installation.
A few seconds later QEMU crashed with:
qemu-system-x86_64: warning: host doesn't support requested feature:
CPUID.8001H:ECX.svm [bit 2]
qemu-system-x86_64: /build/qemu-AB62EU/qemu-4.2/block/io.c:1885:
bdrv_co_write_req_prepare: Assertion `end_sector <= bs->total_sectors ||
child->perm & BLK_PERM_RESIZE' failed.
Aborted
I then enabled -proposed, and installed qemu 4.2-3ubuntu6.15
$ sudo apt install qemu-kvm qemu-system-data qemu-system-gui qemu-
system-x86
I then re-started the qemu VM with:
$ sudo qemu-system-x86_64 -cdrom ./CentOS-7-x86_64-Minimal-1511.iso -m
1024 -blockdev '{"driver":"file","filename":"/mnt/reproducer-centos.img
","node-name":"disk0","cache":{"direct":true}}' -device virtio-blk-
pci,drive=disk0 -vnc 0.0.0.0:0 -enable-kvm
This time the VM managed to format the disk, and successfully install
CentOS.
The packages in -proposed fix the issue, and I am happy to mark the bug
as verified.
** Tags removed: verification-needed verification-needed-focal
** Tags added: verification-done-focal
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Title:
QEMU hits assertion when virtual disk is stored on NFS server and is
not 4 kib byte aligned
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[Bug 1921665] Re: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned
Performing verification for Groovy.
I installed qemu 5.0-5ubuntu9.6 from -updates with the usual KVM stack
command:
$ sudo apt-get install qemu-kvm libvirt-daemon-system libvirt-clients
bridge-utils
$ sudo reboot
>From there I installed and configured a NFS server:
$ sudo -s
$ sudo apt install nfs-kernel-server
$ mkdir -p /export
$ chown libvirt-qemu:kvm /export
$ echo "/export 127.0.0.1(rw,sync,no_subtree_check)" >> /etc/exports
$ systemctl restart nfs-server
Created a disk image:
$ truncate -s 100 /export/reproducer-centos.img
$ chown libvirt-qemu:kvm /export/reproducer-centos.img
$ chmod 666 /export/reproducer-centos.img
and mounted the NFS server:
$ mount 127.0.0.1:/export /mnt -o bg,noacl,noatime,nolock,vers=3,noauto
I downloaded the CentOS image:
$ wget
https://vault.centos.org/7.2.1511/isos/x86_64/CentOS-7-x86_64-Minimal-1511.iso
and started the VM with the following QEMU command line:
$ sudo qemu-system-x86_64 -cdrom ./CentOS-7-x86_64-Minimal-1511.iso -m
1024 -blockdev '{"driver":"file","filename":"/mnt/reproducer-centos.img
","node-name":"disk0","cache":{"direct":true}}' -device virtio-blk-
pci,drive=disk0 -vnc 0.0.0.0:0 -enable-kvm
On my host I opened Reminna, connected to a VNC connection on :5900.
The CentOS installer eventually showed up, and I followed the steps:
Click Continue at the language/keyboard selection screen.
Click Installation Destination.
Click Done (no changes needed on that screen).
Click Begin Installation.
A few seconds later QEMU crashed with:
qemu-system-x86_64: warning: host doesn't support requested feature:
CPUID.8001H:ECX.svm [bit 2]
qemu-system-x86_64: /build/qemu-RSjBPs/qemu-5.0/block/io.c:1887:
bdrv_co_write_req_prepare: Assertion `end_sector <= bs->total_sectors ||
child->perm & BLK_PERM_RESIZE' failed.
Aborted
I then enabled -proposed, and installed qemu 5.0-5ubuntu9.7
$ sudo apt install qemu-kvm qemu-system-data qemu-system-gui qemu-
system-x86
I then re-started the qemu VM with:
$ sudo qemu-system-x86_64 -cdrom ./CentOS-7-x86_64-Minimal-1511.iso -m
1024 -blockdev '{"driver":"file","filename":"/mnt/reproducer-centos.img
","node-name":"disk0","cache":{"direct":true}}' -device virtio-blk-
pci,drive=disk0 -vnc 0.0.0.0:0 -enable-kvm
This time the VM managed to format the disk, and successfully install
CentOS.
The packages in -proposed fix the issue, and I am happy to mark the bug
as verified.
** Tags removed: verification-needed-groovy
** Tags added: verification-done-groovy
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https://bugs.launchpad.net/bugs/1921665
Title:
QEMU hits assertion when virtual disk is stored on NFS server and is
not 4 kib byte aligned
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[Bug 1921665] Re: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned
@mruffel - will you verify these? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1921665 Title: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1921665/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1921665] Re: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned
Hello Matthew, or anyone else affected, Accepted qemu into groovy-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/qemu/1:5.0-5ubuntu9.7 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, what testing has been performed on the package and change the tag from verification-needed- groovy to verification-done-groovy. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification- failed-groovy. 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 Groovy) Status: In Progress => Fix Committed ** Tags added: verification-needed verification-needed-groovy ** Changed in: qemu (Ubuntu Focal) Status: In Progress => Fix Committed ** Tags added: verification-needed-focal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1921665 Title: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1921665/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1921665] Re: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned
FYI - uploaded to the -unapproved queue yesterday. Now on the SRU team to evaluate. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1921665 Title: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1921665/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1921665] Re: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned
Thanks for the quick work Christian! I'll keep an eye out and be ready to test once builds enter -proposed. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1921665 Title: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1921665/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1921665] Re: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned
FYI - fixes (combined with other inbound SRUs) build in PPA and verified vs the testcase. Fix works as expected. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1921665 Title: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1921665/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1921665] Re: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned
I verified the test instructions, working as outlined:
root@node-horsea:/home/ubuntu# qemu-system-x86_64 -cdrom
./CentOS-7-x86_64-Minimal-1511.iso -m 1024 -blockdev
'{"driver":"file","filename":"/mnt/reproducer-centos.img","node-name":"disk0","cache":{"direct":true}}'
-device virtio-blk-pci,drive=disk0 -vnc 0.0.0.0:0 -enable-kvm
qemu-system-x86_64: warning: host doesn't support requested feature:
CPUID.8001H:ECX.svm [bit 2]
qemu-system-x86_64: /build/qemu-RSjBPs/qemu-5.0/block/io.c:1887:
bdrv_co_write_req_prepare: Assertion `end_sector <= bs->total_sectors ||
child->perm & BLK_PERM_RESIZE' failed.
--
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https://bugs.launchpad.net/bugs/1921665
Title:
QEMU hits assertion when virtual disk is stored on NFS server and is
not 4 kib byte aligned
To manage notifications about this bug go to:
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[Bug 1921665] Re: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned
** Merge proposal linked: https://code.launchpad.net/~paelzer/ubuntu/+source/qemu/+git/qemu/+merge/400326 ** Merge proposal linked: https://code.launchpad.net/~paelzer/ubuntu/+source/qemu/+git/qemu/+merge/400327 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1921665 Title: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1921665/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1921665] Re: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned
Hi, this overall LGTM (some minimal file name issues and changelog line length things). I've fixed those when applying and will make it part of a set of SRUs that is incoming. Thanks @Matthew! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1921665 Title: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1921665/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1921665] Re: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned
Attached is a debdiff for Groovy which fixes this bug. ** Patch added: "QEMU debdiff for Groovy" https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1921665/+attachment/5481777/+files/lp1921665_groovy.debdiff -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1921665 Title: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1921665/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1921665] Re: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned
Attached is a debdiff for Focal which fixes this bug. ** Patch added: "QEMU debdiff for focal" https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1921665/+attachment/5481776/+files/lp1921665_focal.debdiff -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1921665 Title: QEMU hits assertion when virtual disk is stored on NFS server and is not 4 kib byte aligned To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1921665/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
