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Bug
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Resolution: Done
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Minor
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None
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rhel-9.5
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None
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None
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None
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sst_virtualization_networking
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ssg_virtualization
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None
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False
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None
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None
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None
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Automated
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None
Description of problem:
Error message is not detailed as before when start vm with negative passt setting
Version-Release number of selected component (if applicable):
passt-0^20240510.g7288448-1.el9.x86_64
libvirt-10.3.0-2.el9.x86_64
How reproducible:
100%
Steps to Reproduce:
1. Try to start vm with passt interface, with some negative settings:
# ip l show eno4 4: eno4: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN mode DEFAULT group default qlen 1000 link/ether e4:43:4b:55:03:d9 brd ff:ff:ff:ff:ff:ff altname enp1s0f1 # virsh dumpxml vm2 --xpath //interface <interface type="user"> <mac address="52:54:00:b8:a6:9a"/> <source dev="eno4"/> <model type="virtio"/> <backend type="passt" logFile="/run/user/107/passt.log"/> <address type="pci" domain="0x0000" bus="0x01" slot="0x00" function="0x0"/> </interface> # virsh start vm2 error: Failed to start domain 'vm2' error: internal error: Child process (passt --one-off --socket /run/libvirt/qemu/passt/2-vm2-net0.socket --pid /run/libvirt/qemu/passt/2-vm2-net0-passt.pid --interface eno4 --log-file /run/user/107/passt.log) unexpected exit status 1 # cat /run/user/107/passt.log passt 0^20240510.g7288448-1.el9.x86_64: /usr/bin/passt.avx2 (1793906) 0.8828: ERROR: External interface not usable
Actual results:
The error message is not concrete enough, it says "unexpected exit status 1"
Expected results:
The error message can be improved to be more detailed
Additional info:
1) with passt-0^20231204.gb86afe3-1.el9.x86_64, the error message is expected
# virsh start rhel error: Failed to start domain 'rhel' error: internal error: Child process (passt --one-off --socket /run/libvirt/qemu/passt/1-rhel-net0.socket --pid /run/libvirt/qemu/passt/1-rhel-net0-passt.pid --interface eno4 --log-file /run/user/107/passt.log) unexpected exit status 1: External interface not usable
2) When the xml set without log file, the error message makes sense:
# # virsh dumpxml vm2 --xpath //interface <interface type="user"> <mac address="52:54:00:b8:a6:9a"/> <source dev="eno4"/> <model type="virtio"/> <backend type="passt"/> <address type="pci" domain="0x0000" bus="0x01" slot="0x00" function="0x0"/> </interface> # virsh start vm2 error: Failed to start domain 'vm2' error: internal error: Child process (passt --one-off --socket /run/libvirt/qemu/passt/1-vm2-net0.socket --pid /run/libvirt/qemu/passt/1-vm2-net0-passt.pid --interface eno4) unexpected exit status 1: External interface not usable
And the same issue will occur when other negative settings like bind to non-exists ip address.