** Changed in: linux (Ubuntu)
Status: In Progress => Invalid
** Changed in: linux (Ubuntu Focal)
Status: In Progress => Invalid
** Changed in: linux (Ubuntu Jammy)
Status: In Progress => Invalid
** Changed in: linux (Ubuntu Kinetic)
Status: In Progress => Invalid
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https://bugs.launchpad.net/bugs/1995684
Title:
Fail to handle IRQ data in hv_pci and lead to attach 8 VF to VM fail
Status in linux package in Ubuntu:
Invalid
Status in linux source package in Focal:
Invalid
Status in linux source package in Jammy:
Invalid
Status in linux source package in Kinetic:
Invalid
Bug description:
[Impact]
When creating 8 accelerated network interfaces on Azure and attaching them to
a VM
from kernel message, it fails to handle IRQ data in hv_pci as below:
[ 15.533530] hv_pci 1f4aa2a4-aff1-40af-8547-12f13bf19608: Request for
interrupt failed: 0xc0350005
[ 15.539856] hv_pci 1f4aa2a4-aff1-40af-8547-12f13bf19608: Request for
interrupt failed: 0xc0350005
[ 15.546261] hv_pci 1f4aa2a4-aff1-40af-8547-12f13bf19608: Request for
interrupt failed: 0xc0350005
[ 15.552781] hv_pci 1f4aa2a4-aff1-40af-8547-12f13bf19608: Request for
interrupt failed: 0xc0350005
[ 15.560177] hv_pci 1f4aa2a4-aff1-40af-8547-12f13bf19608: Request for
interrupt failed: 0xc0350005
[ 15.566631] hv_pci 1f4aa2a4-aff1-40af-8547-12f13bf19608: Request for
interrupt failed: 0xc0350005
And 2 VFs are consistently missing, only 6 seem to be working
[Fix]
The fix was merged to upstream hyperv tree:
https://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux.git/commit/?h=hyperv-fixes&id=f134588e4cebaecdeafbbb19317517ea9b729aa9
[Test Plan]
1. Create 8 NICs in azure with accelerated networking enabled
2. Launch a VM with all 8 attached
3. Check the output from VM
[Where problems could occur]
The patch is to use the correct type for the variables and reviewed by
upstream
There shouldn't be any problem
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