Gramine missing kernel fix for wait4(INT_MIN, ...)

[anjalirai-intel]

Description of the problem

The test checks for wait4(INT_MIN, ...) and the test fails with error ECHILD instead of ESRCH

Steps to reproduce

Compile the wait403 test and run with gramine-direct/gramine-sgx, c code and logs has been attached in zip

wait403.zip

Expected results

TPASS: wait4 fails with ESRCH : ESRCH (3)

Summary:
passed 1
failed 0
broken 0
skipped 0
warnings 0

Actual results

TFAIL: wait4 fails with ESRCH expected ESRCH: ECHILD (10)
[0.069]
[0.069] HINT: You MAY be missing kernel fixes:
[0.069]
[0.069] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=dd83c161fbcc
[0.069]
[0.069] Summary:
[0.069] passed 0
[0.069] failed 1
[0.069] broken 0
[0.069] skipped 0
[0.069] warnings 0

Gramine commit hash

1cf1f46

[dimakuv]

I confirm that this is indeed a (tiny) bug in Gramine. We do not have special casing of INT_MIN in the wait family of syscalls.

[mkow]

I don't see such a test in our LTP?

[dimakuv]

Yep, we have https://github.com/linux-test-project/ltp/tree/da2f34028f046a208aa2fed5e287df2538e69f91 (version LTP 20200930).

This test wait403 was added in LTP 20210927.

So @anjalirai-intel was enabling this newer version of LTP (I think), and hit this case.