Hi, all,
It seems that the exec_spawn() will return 0 if fork() fails, because
that
return log_unit_error_errno(params->unit_id, errno, "Failed to
fork: %m");
will return -r eventually. And here r = exec_context_load_environment() ,
which has
exited successfully.This may lead big trouble to the caller of exec_spawn(). For example, mount_spawn(), which also calls exec_spawn(), will not goto fail but run continuelly in this case. Then the following unit_watch_pid() will fail at assert(pid >= 1);. I also commit a patch to fix this problem, please help to review. Thanks a lot！ Li Cheng
0001-core-execute-fix-fork-fail-handling-in-exec_spawn.patch
Description: Binary data
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