vagrant: Bump 4.9 Vagrant box (Linux 4.9.326, to fix a kernel bug) #21106
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We have been hitting a kernel bug on 4.9 for the verifier tests. An underflow on the memlock rlimit counter, caused by the reallocation of BPF programs not updating the charged values, makes the counter go under zero and convert into a huge value, blocking all further loads of BPF objects [0]. This has been fixed in kernel 4.10 [1], and was backported at last in 4.9.326. We generated a new Ubuntu image based on that, let's update. [0] cilium#20288 [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=5ccb071e97fbd9ffe623a0d3977cc6d013bee93c Signed-off-by: Quentin Monnet <quentin@isovalent.com>
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/test-1.16-4.9 |
tklauser
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Aug 26, 2022
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k8s-1.16-kernel-4.9 passed successfully |
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michi-covalent
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Aug 26, 2022
This was referenced Sep 9, 2022
qmonnet
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backport-done/1.12
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This was referenced May 15, 2023
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We have been hitting a kernel bug on 4.9 for the verifier tests. An underflow on the memlock rlimit counter, caused by the reallocation of BPF programs not updating the charged values, makes the counter go under zero and convert into a huge value, blocking all further loads of BPF objects.
This has been fixed in kernel 4.10, and was backported at last in 4.9.326. We generated a new Ubuntu image based on that, let's update.
Fixes: #20288