canonical-ubuntu-qa team mailing list archive

[Po-Hsu Lin <2024186@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Unlike bug 2023680, test_verifier in ubuntu_bpf is just failing with
sub-test 192 and 467 on L-oracle ARM64

#192/p bpf_get_task_stack return R0 range is refined FAIL
Failed to load prog 'Permission denied'! 
func 'bpf_iter_task' arg0 has btf_id 299014 type STRUCT 'bpf_iter_meta'
cannot access ptr member buf with moff 0 in struct seq_file with off 0 size 1 
R1 is of type seq_file but seq_file is expected 
verification time 1129 usec
stack depth 8
processed 27 insns (limit 1000000) max_states_per_insn 0 total_states 2 peak_states 2 mark_read 2

#467/p d_path accept FAIL
Failed to load prog 'Permission denied'! 
func 'dentry_open' arg0 has btf_id 207776 type STRUCT 'path'
cannot access ptr member mnt with moff 0 in struct path with off 0 size 1
R1 is of type path but path is expected 
verification time 1337 usec
stack depth 8
processed 7 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0

** Affects: ubuntu-kernel-tests
     Importance: Undecided
         Status: New


** Tags: 6.2 arm64 lunar oracle sru-20230515 ubuntu-bpf

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https://bugs.launchpad.net/bugs/2024186

Title:
  test_verifier in ubuntu_bpf fails (192, 467) - Permission denied on
  L-oracle ARM64

Status in ubuntu-kernel-tests:
  New

Bug description:
  Unlike bug 2023680, test_verifier in ubuntu_bpf is just failing with
  sub-test 192 and 467 on L-oracle ARM64

  #192/p bpf_get_task_stack return R0 range is refined FAIL
  Failed to load prog 'Permission denied'! 
  func 'bpf_iter_task' arg0 has btf_id 299014 type STRUCT 'bpf_iter_meta'
  cannot access ptr member buf with moff 0 in struct seq_file with off 0 size 1 
  R1 is of type seq_file but seq_file is expected 
  verification time 1129 usec
  stack depth 8
  processed 27 insns (limit 1000000) max_states_per_insn 0 total_states 2 peak_states 2 mark_read 2

  #467/p d_path accept FAIL
  Failed to load prog 'Permission denied'! 
  func 'dentry_open' arg0 has btf_id 207776 type STRUCT 'path'
  cannot access ptr member mnt with moff 0 in struct path with off 0 size 1
  R1 is of type path but path is expected 
  verification time 1337 usec
  stack depth 8
  processed 7 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0

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