diff options
| -rw-r--r-- | src/backend/storage/ipc/signalfuncs.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/backend/storage/ipc/signalfuncs.c b/src/backend/storage/ipc/signalfuncs.c index 45a86b07583..6e310b14ebd 100644 --- a/src/backend/storage/ipc/signalfuncs.c +++ b/src/backend/storage/ipc/signalfuncs.c @@ -57,6 +57,10 @@ pg_signal_backend(int pid, int sig) * arbitrary process to prevent that. But since so far all the callers of * this mechanism involve some request for ending the process anyway, that * it might end on its own first is not a problem. + * + * Note that proc will also be NULL if the pid refers to an auxiliary + * process or the postmaster (neither of which can be signaled via + * pg_signal_backend()). */ if (proc == NULL) { @@ -65,7 +69,8 @@ pg_signal_backend(int pid, int sig) * if one backend terminated on its own during the run. */ ereport(WARNING, - (errmsg("PID %d is not a PostgreSQL server process", pid))); + (errmsg("PID %d is not a PostgreSQL backend process", pid))); + return SIGNAL_BACKEND_ERROR; } |