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@lmb lmb commented Jul 18, 2025

The ubuntu 24.04 kernel used by CI seems to have a bug which causes it to crash when executing TestKfunc in our testsuite.

=== RUN   TestKfunc
[   15.728492] BUG: unable to handle page fault for address: ffffffffea91fa00
[   15.728724] #PF: supervisor read access in kernel mode
[   15.728940] #PF: error_code(0x0000) - not-present page
[   15.729302] PGD 18e3f067 P4D 18e3f067 PUD 18e41067 PMD 0
[   15.729693] Oops: Oops: 0000 [#1] SMP NOPTI
[   15.729973] CPU: 1 UID: 0 PID: 1947 Comm: ebpf.test Not tainted 6.11.0-1015-azure #15~24.04.1-Ubuntu
[   15.730377] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.730620] RIP: 0010:bpf_test_run+0x183/0x3d0

This requires the nf_conntrack module to be loaded since we invoke bpf_skb_ct_lookup in the test.

The ubuntu 24.04 kernel used by CI seems to have a bug which causes it to
crash when executing TestKfunc in our testsuite.

    === RUN   TestKfunc
    [   15.728492] BUG: unable to handle page fault for address: ffffffffea91fa00
    [   15.728724] #PF: supervisor read access in kernel mode
    [   15.728940] #PF: error_code(0x0000) - not-present page
    [   15.729302] PGD 18e3f067 P4D 18e3f067 PUD 18e41067 PMD 0
    [   15.729693] Oops: Oops: 0000 [cilium#1] SMP NOPTI
    [   15.729973] CPU: 1 UID: 0 PID: 1947 Comm: ebpf.test Not tainted 6.11.0-1015-azure cilium#15~24.04.1-Ubuntu
    [   15.730377] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
    [   15.730620] RIP: 0010:bpf_test_run+0x183/0x3d0

This requires the nf_conntrack module to be loaded since we invoke
bpf_skb_ct_lookup in the test.

Signed-off-by: Lorenz Bauer <[email protected]>
@lmb lmb marked this pull request as ready for review July 19, 2025 09:28
@lmb lmb requested a review from a team as a code owner July 19, 2025 09:28
@lmb lmb merged commit 092197e into cilium:main Jul 19, 2025
49 of 50 checks passed
@lmb lmb deleted the ci-arm64-fix-crash branch July 19, 2025 09:28
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