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Message #04688
[Bug 2066332] Re: net:fib_rule_tests.sh in ubuntu_kselftests_net fails on Noble
This bug is awaiting verification that the linux-lowlatency-
hwe-6.8/6.8.0-38.38.1~22.04.2 kernel in -proposed solves the problem.
Please test the kernel and update this bug with the results. If the
problem is solved, change the tag 'verification-needed-jammy-linux-
lowlatency-hwe-6.8' to 'verification-done-jammy-linux-lowlatency-
hwe-6.8'. If the problem still exists, change the tag 'verification-
needed-jammy-linux-lowlatency-hwe-6.8' to 'verification-failed-jammy-
linux-lowlatency-hwe-6.8'.
If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.
See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!
** Tags added: kernel-spammed-jammy-linux-lowlatency-hwe-6.8-v2 verification-needed-jammy-linux-lowlatency-hwe-6.8
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https://bugs.launchpad.net/bugs/2066332
Title:
net:fib_rule_tests.sh in ubuntu_kselftests_net fails on Noble
Status in ubuntu-kernel-tests:
In Progress
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Noble:
Fix Released
Status in linux source package in Oracular:
In Progress
Bug description:
In our SRU cycles, all Noble kernels fail in the aforementioned
kselftests:
11238 20:50:51 DEBUG| [stdout] # Cannot open network
namespace "testns": No such file or directory
This error is caused by the local fix added in 2019:
"UBUNTU: SAUCE: selftests: net: fix "from" match test in fib_rule_tests.sh"
It was no longer necessary because a similar fix was applied in upstream:
d1abf388604f ("selftests: fib_rule_tests: enable forwarding before ipv4 from/iif test")
However, such a Ubuntu-local commit is often blindly carried over to
future releases because nobody re-evaluates whether it is still needed
or not.
Now, it is causing a real issue on Noble kselftests.
$ linux/tools/testing/selftests/net$ sudo ./fib_rule_tests.sh
Cannot open network namespace "testns": No such file or directory
The reason for the failure is obvious; there is no such a namespace since the upstream commit 6c0ee7b4d69d ("selftests/net: convert fib_rule_tests.sh to run it in unique namespace").
Reverting the outdated commit fixes this failure.
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References