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6a68d28066
The coredump.socket_detect_userspace_client test occasionally fails:
# RUN coredump.socket_detect_userspace_client ...
# stackdump_test.c:500:socket_detect_userspace_client:Expected 0 (0) != WIFEXITED(status) (0)
# socket_detect_userspace_client: Test terminated by assertion
# FAIL coredump.socket_detect_userspace_client
not ok 3 coredump.socket_detect_userspace_client
because there is no guarantee that client's write() happens before server's
close(). The client gets terminated SIGPIPE, and thus the test fails.
Add a read() to server to make sure server's close() doesn't happen before
client's write().
Fixes: 7b6724fe9a ("selftests/coredump: add tests for AF_UNIX coredumps")
Signed-off-by: Nam Cao <namcao@linutronix.de>
Link: https://lore.kernel.org/20250620110252.1640391-1-namcao@linutronix.de
Signed-off-by: Christian Brauner <brauner@kernel.org>