test_verifier in ubuntu_bpf failed with 47 test cases on J-64k-ARM64 openstack

[Po-Hsu Lin]

Issue found with J-generic-5.15.0-88.98 and J-lowlatency-5.15.0-88.98 on Openstack ARM64 instance with 64k flavour.

After the ubuntu_bpf build issue (bug 2035181) fixed, test in ubuntu_bpf can be tested and reporting failures.

The failure consists of 41 failures reported for ARM64 in bug 2040261. And 6 extra failures reported for 64k flavour:

 #867/u reference tracking: try to leak released ptr reg Failed to create hash map 'Invalid argument'!
 FAIL
 Unexpected verifier log!
 EXP: R8 !read_ok
 RES:
 FAIL
 Unexpected error message!
     EXP: R8 !read_ok
     RES: fd -1 is not pointing to valid bpf_map
 verification time 20 usec
 stack depth 0
 processed 0 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0

 fd -1 is not pointing to valid bpf_map
 verification time 20 usec
 stack depth 0
 processed 0 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0
 #867/p reference tracking: try to leak released ptr reg Failed to create hash map 'Invalid argument'!
 FAIL
 Failed to load prog 'Bad file descriptor'!
 fd -1 is not pointing to valid bpf_map
 verification time 6 usec
 stack depth 0
 processed 0 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0
 #944/u check valid spill/fill, ptr to mem Failed to create hash map 'Invalid argument'!
 FAIL
 Failed to load prog 'Bad file descriptor'!
 fd -1 is not pointing to valid bpf_map
 verification time 7 usec
 stack depth 0
 processed 0 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0
 #944/p check valid spill/fill, ptr to mem Failed to create hash map 'Invalid argument'!
 FAIL
 Failed to load prog 'Bad file descriptor'!
 fd -1 is not pointing to valid bpf_map
 verification time 6 usec
 stack depth 0
 processed 0 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0
 #945/u check with invalid reg offset 0 Failed to create hash map 'Invalid argument'!
 FAIL
 Unexpected verifier log!
 EXP: R0 pointer arithmetic on mem_or_null prohibited
 RES:
 FAIL
 Unexpected error message!
     EXP: R0 pointer arithmetic on mem_or_null prohibited
     RES: fd -1 is not pointing to valid bpf_map
 verification time 6 usec
 stack depth 0
 processed 0 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0

 fd -1 is not pointing to valid bpf_map
 verification time 6 usec
 stack depth 0
 processed 0 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0
 #945/p check with invalid reg offset 0 Failed to create hash map 'Invalid argument'!
 FAIL
 Unexpected verifier log!
 EXP: R0 pointer arithmetic on mem_or_null prohibited
 RES:
 FAIL
 Unexpected error message!
     EXP: R0 pointer arithmetic on mem_or_null prohibited
     RES: fd -1 is not pointing to valid bpf_map
 verification time 6 usec
 stack depth 0
 processed 0 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0

 fd -1 is not pointing to valid bpf_map
 verification time 6 usec
 stack depth 0
 processed 0 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0

You will find the complete 47 failures in the attachment.

This should not be considered as a regression since we just start testing ubuntu_bpf on openstack instances from 5.15.0-83 (and it's affected by the aforementioned build issue since then)