This bug was fixed in the package linux-azure - 5.4.0-1077.80
---------------
linux-azure (5.4.0-1077.80) focal; urgency=medium
* focal/linux-azure: 5.4.0-1077.80 -proposed tracker (LP: #1968796)
* Packaging resync (LP: #1786013)
- debian/dkms-versions -- update from kernel-versions (main/2022.03.21)
* focal/linux-azure: Enable missing config options (LP: #1968749)
- Drivers: hv: vmbus: Propagate VMbus coherence to each VMbus device
- PCI: hv: Propagate coherence from VMbus device to PCI device
- [Config] azure: arm64: Ignore module movements
- [Config] azure: arm64: Enable RAID config options
- [Config] azure: arm64: Enable SQUASHFS config options
-- Tim Gardner <tim.gard...@canonical.com> Tue, 12 Apr 2022 18:53:53
-0600
** Changed in: linux-azure (Ubuntu Focal)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1968749
Title:
focal/linux-azure: Enable missing config options
Status in linux-azure package in Ubuntu:
Fix Released
Status in linux-azure source package in Focal:
Fix Released
Bug description:
SRU Justification
[Impact]
focal/linux-azure is missing a number of config options compared to
impish/linux-azure. This kernel is also missing 2 patches that
significantly impact network performance.
From Microsoft:
We tested this kernel. The P0P1 test cases are finished. Below are we found.
P2 test cases are still running. I will update you when they are finished.
1. From dmesg, we can see following lines. Could you check why it has these
messages and if the messages impact the system?
[ 3.341802] squashfs: SQUASHFS error: Xattrs in filesystem, these will be
ignored
[ 3.346056] unable to read xattr id index table
2. The kernel hasn't backport Michael's SRIOV performance improvement
patches. The network performance is not expected.
Here are the patches:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v5.18-rc2&id=37200078ed6aa2ac3c88a01a64996133dccfdd34
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v5.18-rc2&id=8d21732475c637c7efcdb91dc927a4c594e97898
3. It is failed to create raid 0 using below command.
# mdadm --create /dev/md0 --level 0 --raid-devices 16
/dev/sd[abcdghijklmnopqr][1-5]
mdadm: Defaulting to version 1.2 metadata
mdadm: RUN_ARRAY failed: Invalid argument
From dmesg, it has following lines:
[ 235.830712] md: personality for level 0 is not loaded!
[ 235.830733] md: md0 stopped.
I see many raid related configuration is not set. Could you check the raid
related and other configuration?
# cat /boot/config-5.4.0-1076-azure | grep RAID
CONFIG_RAID_ATTRS=m
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
CONFIG_MEGARAID_SAS=y
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_MD_RAID0 is not set
# CONFIG_MD_RAID1 is not set
# CONFIG_MD_RAID10 is not set
# CONFIG_MD_RAID456 is not set
# CONFIG_DM_RAID is not set
CONFIG_BCM_SBA_RAID=m
CONFIG_DMA_ENGINE_RAID=y
CONFIG_RAID6_PQ=m
CONFIG_RAID6_PQ_BENCHMARK=y
[Test Case]
Microsoft tested
[Where things could go wrong]
There should be little chance of regression given that these are
config options.
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