FYI, we noticed the following commit (built with gcc-7):
commit: 4f7b25baf0cefa88aa267e8ff60150c4ac1479ef ("bpf: sockmap, refactor sockmap
routines to work with hashmap")
in testcase: kernel_selftests
with following parameters:
test-description: The kernel contains a set of "self tests" under the
tools/testing/selftests/ directory. These are intended to be small unit tests to exercise
individual code paths in the kernel.
on test machine: qemu-system-x86_64 -enable-kvm -cpu host -smp 4 -m 5G
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
Failed allowed duplicate programs in update ANY sockmap 0 '4:8'
not ok 1..3 selftests: test_maps [FAIL]
git clone https://github.com/intel/lkp-tests.git
bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email