worker: Don't have worker abort when parent dies.

Depending on how forcefully the parent process is killed, the worker
could abort when trying to read or write on their shared socket.  This
changes those errors from VLOG_ABORT to VLOG_FATAL so that a core isn't
generated.

Bug #14821

Reported-by: Amey Bhide <abhide@nicira.com>
Signed-off-by: Justin Pettit <jpettit@nicira.com>

diff --git a/lib/worker.c b/lib/worker.c
index b281d70..f2ac6b4 100644 (file)
--- a/lib/worker.c
+++ b/lib/worker.c
@@ -335,7 +335,7 @@ worker_reply_iovec(const struct iovec *iovs, size_t n_iovs,
          * to avoid missing log messages. */
         VLOG_INFO("send failed (%s)", strerror(error));
     } else if (error) {
-        VLOG_ABORT("send failed (%s)", strerror(error));
+        VLOG_FATAL("send failed (%s)", strerror(error));
     }
 
     free(all_iovs);
@@ -369,7 +369,7 @@ worker_main(int fd)
             /* Main process closed the IPC socket.  Exit cleanly. */
             break;
         } else if (error != EAGAIN) {
-            VLOG_ABORT("RPC receive failed (%s)", strerror(error));
+            VLOG_FATAL("RPC receive failed (%s)", strerror(error));
         }
 
         poll_fd_wait(server_sock, POLLIN);