Index: src/OFPollKernelEventObserver.m
==================================================================
--- src/OFPollKernelEventObserver.m
+++ src/OFPollKernelEventObserver.m
@@ -160,18 +160,21 @@
 	[super removeObjectForWriting: object];
 }
 
 - (void)observeForTimeInterval: (of_time_interval_t)timeInterval
 {
+	void *pool;
 	struct pollfd *FDs;
 	int events;
 	size_t nFDs;
 
 	if ([self of_processReadBuffers])
 		return;
 
-	FDs = _FDs.mutableItems;
+	pool = objc_autoreleasePoolPush();
+
+	FDs = [[[_FDs mutableCopy] autorelease] mutableItems];
 	nFDs = _FDs.count;
 
 #ifdef OPEN_MAX
 	if (nFDs > OPEN_MAX)
 		@throw [OFOutOfRangeException exception];
@@ -186,11 +189,11 @@
 
 	for (size_t i = 0; i < nFDs; i++) {
 		assert(FDs[i].fd <= _maxFD);
 
 		if (FDs[i].revents & POLLIN) {
-			void *pool;
+			void *pool2;
 
 			if (FDs[i].fd == _cancelFD[0]) {
 				char buffer;
 
 #ifdef OF_HAVE_PIPE
@@ -202,30 +205,32 @@
 				FDs[i].revents = 0;
 
 				continue;
 			}
 
-			pool = objc_autoreleasePoolPush();
+			pool2 = objc_autoreleasePoolPush();
 
 			if ([_delegate respondsToSelector:
 			    @selector(objectIsReadyForReading:)])
 				[_delegate objectIsReadyForReading:
 				    _FDToObject[FDs[i].fd]];
 
-			objc_autoreleasePoolPop(pool);
+			objc_autoreleasePoolPop(pool2);
 		}
 
 		if (FDs[i].revents & (POLLOUT | POLLHUP)) {
-			void *pool = objc_autoreleasePoolPush();
+			void *pool2 = objc_autoreleasePoolPush();
 
 			if ([_delegate respondsToSelector:
 			    @selector(objectIsReadyForWriting:)])
 				[_delegate objectIsReadyForWriting:
 				    _FDToObject[FDs[i].fd]];
 
-			objc_autoreleasePoolPop(pool);
+			objc_autoreleasePoolPop(pool2);
 		}
 
 		FDs[i].revents = 0;
 	}
+
+	objc_autoreleasePoolPop(pool);
 }
 @end