Comment 1 for bug 1991376

For J-gkeop 5.15.0-1005.7
The failed test case number has reduced to 3:
#27, #30, #150

 #27/u atomic compare-and-exchange smoketest - 32bit FAIL
 Unexpected success to load!
 verification time 32 usec
 stack depth 4
 processed 23 insns (limit 1000000) max_states_per_insn 0 total_states 2 peak_states 2 mark_read 1

 #30/u BPF_W cmpxchg should zero top 32 bits FAIL
 Unexpected success to load!
 verification time 17 usec
 stack depth 8
 processed 13 insns (limit 1000000) max_states_per_insn 0 total_states 1 peak_states 1 mark_read 0

 #150/p calls: trigger reg2btf_ids[reg->type] for reg->type > __BPF_REG_TYPE_MAX FAIL
 Unexpected verifier log!
 EXP: arg#0 pointer type STRUCT prog_test_ref_kfunc must point
 RES:
 FAIL
 Unexpected error message!
     EXP: arg#0 pointer type STRUCT prog_test_ref_kfunc must point
     RES: kernel btf_id 0 is not a function
 verification time 10 usec
 stack depth 0
 processed 0 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0

 kernel btf_id 0 is not a function
 verification time 10 usec
 stack depth 0
 processed 0 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0