patch-2.4.19 linux-2.4.19/ipc/sem.c

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diff -urN linux-2.4.18/ipc/sem.c linux-2.4.19/ipc/sem.c
@@ -643,6 +643,7 @@
 		for (un = sma->undo; un; un = un->id_next)
 			un->semadj[semnum] = 0;
 		curr->semval = val;
+		curr->sempid = current->pid;
 		sma->sem_ctime = CURRENT_TIME;
 		/* maybe some queued-up processes were waiting for this */
 		update_queue(sma);

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