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-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2001618 Title: BPF_[AND|OR|XOR|FETCH|XCHG|CMPXCHG] in net:test_bpf.sh from ubuntu_kernel_selftests failed on K-5.19 P9 Status in ubuntu-kernel-tests: Fix Released Status in linux package in Ubuntu: Fix Released Status in linux source package in Kinetic: Fix Released Bug description: [Impact] The BPF_AND, BPF_OR, BPF_XOR, BPF_FETCH, BPF_XCHG and BPF_CMPXCHG related tests will fail in net:test_bpf test from ubuntu_kernel_selftests as they are not supported. test_bpf: #361 BPF_ATOMIC | BPF_W, BPF_AND: Test: 0x12 & 0xab = 0x02 eBPF filter atomic op code c3 (@3) unsupported FAIL to select_runtime err=-524 ... test_bpf: #365 BPF_ATOMIC | BPF_W, BPF_AND | BPF_FETCH: Test: 0x12 & 0xab = 0x02 eBPF filter atomic op code c3 (@3) unsupported FAIL to select_runtime err=-524 ... test_bpf: #377 BPF_ATOMIC | BPF_W, BPF_OR: Test: 0x12 | 0xab = 0xbb FAIL to select_runtime err=-524 ... test_bpf: #393 BPF_ATOMIC | BPF_W, BPF_XOR: Test: 0x12 ^ 0xab = 0xb9 FAIL to select_runtime err=-524 ... test_bpf: #409 BPF_ATOMIC | BPF_W, BPF_XCHG: Test: 0x12 xchg 0xab = 0xab eBPF filter atomic op code c3 (@3) unsupported FAIL to select_runtime err=-524 ... test_bpf: #417 BPF_ATOMIC | BPF_W, BPF_CMPXCHG: Test successful return eBPF filter atomic op code c3 (@3) unsupported FAIL to select_runtime err=-524 ... test_bpf: Summary: 894 PASSED, 132 FAILED, [882/882 JIT'ed] Please find attachment for the complete test log. [Fix] * 6511270911 powerpc/bpf/64: add support for BPF_ATOMIC bitwise operations * dbe6e2456f powerpc/bpf/64: add support for atomic fetch operations * 1e82dfaa78 powerpc/bpf/64: Add instructions for atomic_[cmp]xchg These patches can be cherry-picked into Kinetic kernel. [Test] Test kernel can be found here: https://people.canonical.com/~phlin/kernel/lp-2001618-ppcbpf/ Steps: 1. Reboot with the patched kernel 2. Run: sudo dmesg -C sudo modprobe test_bpf sudo dmesg Tested with Power9 node baltar, with the patched kernel there will be no failure reported by the test_bpf: test_bpf: Summary: 1026 PASSED, 0 FAILED, [1014/1014 JIT'ed] [Where problems could occur] This patchset just broaden the BPF operations support on ppc64, we might see some new failures when using these instruction somewhere in the future. Cascardo: The existing atomic operations may regress as well, since they now produce different code. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/2001618/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
