listmount04 from ubuntu_ltp_syscalls failed on Noble

[Po-Hsu Lin]

This is a new test case added in 2024 Oct. 09 [1] therefore this is not a regression but a new failure after updating our LTP fork.

Failure found on Noble 6.8.0-51.52 (test require 6.8 and higher), Oracular is good.

Log:
INFO: Test start time: Tue Dec 31 09:44:04 UTC 2024
COMMAND: /opt/ltp/bin/ltp-pan -q -e -S -a 132284 -n 132284 -f /tmp/ltp-eo3P32dP5x/alltests -l /dev/null -C /dev/null -T /dev/null
LOG File: /dev/null
FAILED COMMAND File: /dev/null
TCONF COMMAND File: /dev/null
Running tests.......
tst_buffers.c:57: TINFO: Test is using guarded buffers
tst_test.c:1893: TINFO: LTP version: 20240930
tst_test.c:1897: TINFO: Tested kernel: 6.8.0-51-generic #52-Ubuntu SMP PREEMPT_DYNAMIC Thu Dec 5 13:09:44 UTC 2024 x86_64
tst_test.c:1728: TINFO: Timeout per run is 0h 00m 30s
listmount04.c:130: TPASS: request points to unaccessible memory : EFAULT (14)
listmount04.c:130: TPASS: mnt_ids points to unaccessible memory : EFAULT (14)
listmount04.c:130: TPASS: invalid flags : EINVAL (22)
listmount04.c:130: TPASS: insufficient mnt_id_req.size : EINVAL (22)
listmount04.c:130: TPASS: invalid mnt_id_req.spare : EINVAL (22)
listmount04.c:130: TFAIL: invalid mnt_id_req.param invalid retval 25: SUCCESS (0)
listmount04.c:130: TFAIL: invalid mnt_id_req.mnt_id expected EINVAL: ENOENT (2)
listmount04.c:130: TPASS: non-existant mnt_id : ENOENT (2)

Summary:
passed 6
failed 2
broken 0
skipped 0
warnings 0
INFO: ltp-pan reported some tests FAIL
LTP Version: 20240930
INFO: Test end time: Tue Dec 31 09:44:04 UTC 2024

[1] https://github.com/linux-test-project/ltp/commit/141958ad3e13705bc2e7e1895ac83823e5c0a5ca

[Po-Hsu Lin (cypressyew)]

 listmount04.c:130: TFAIL: invalid mnt_id_req.mnt_id expected EINVAL: ENOENT (2)

This can be fixed by https://github.com/torvalds/linux/commit/80744d0e7a81c35795a2754049eafff76abbe371

[Po-Hsu Lin (cypressyew)]

 listmount04.c:130: TFAIL: invalid mnt_id_req.param invalid retval 25: SUCCESS (0)

This can be fixed by https://github.com/torvalds/linux/commit/4bed843b10004d9101b49ac7270131051c39a9

However this cannot be cherry-picked like the previous one, it will need to be backported to add corresponding code in place.
And it seems a bit risky as the delta is quite big.

[Tim Whisonant (tswhison)]

Found on jammy:linux-gcp-6.8 6.8.0-1024.26~22.04.1 during 2025.01.13.