patch 9.0.1377: job_status() may return "dead" if the process parent changed
Problem: job_status() may return "dead" if the process parent changed.
Solution: Call mch_process_running() to check if the job is still alive.
diff --git a/src/os_unix.c b/src/os_unix.c
index 0dfbd49..b9514d2 100644
--- a/src/os_unix.c
+++ b/src/os_unix.c
@@ -5863,10 +5863,17 @@
# endif
if (wait_pid == -1)
{
+ int waitpid_errno = errno;
+ if (waitpid_errno == ECHILD && mch_process_running(job->jv_pid))
+ // The process is alive, but it was probably reparented (for
+ // example by ptrace called by a debugger like lldb or gdb).
+ // Note: This assumes that process IDs are not reused.
+ return "run";
+
// process must have exited
if (job->jv_status < JOB_ENDED)
ch_log(job->jv_channel, "Job no longer exists: %s",
- strerror(errno));
+ strerror(waitpid_errno));
goto return_dead;
}
if (wait_pid == 0)