CVS commit: src/tests

["Rin Okuyama" <rin%netbsd.org@localhost>]

Module Name:    src
Committed By:   rin
Date:           Fri Aug 23 07:13:50 UTC 2024

Modified Files:
        src/tests/kernel/kqueue: t_empty.c
        src/tests/net/net: t_tcp.c

Log Message:
tests: Fix false positives due to race b/w connect(2) and accept(2)

For kernel/kqueue/t_empty and net/net/t_tcp, there were no sync ops
b/w connect(2) and accept(2) for non-blocking socket pair on host
(rump is not used).

As a result, accept(2) can fail immediately with EAGAIN, when
kernel-side routines for connect(2) and accept(2) are processed in
different CPU cores.

1-sec sleep(3) between two syscalls seems to mitigate this problem
as far as I can see, although this should not be a perfect solution...

Thanks ozaki-r@ for discussion.


To generate a diff of this commit:
cvs rdiff -u -r1.1 -r1.2 src/tests/kernel/kqueue/t_empty.c
cvs rdiff -u -r1.12 -r1.13 src/tests/net/net/t_tcp.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.