diff --git a/src/Monolog/ErrorHandler.php b/src/Monolog/ErrorHandler.php
index 340e9f43..9a1e3004 100644
--- a/src/Monolog/ErrorHandler.php
+++ b/src/Monolog/ErrorHandler.php
@@ -37,6 +37,7 @@ class ErrorHandler
     private $hasFatalErrorHandler;
     private $fatalLevel;
     private $reservedMemory;
+    private $lastFatalTrace;
     private static $fatalErrors = [E_ERROR, E_PARSE, E_CORE_ERROR, E_COMPILE_ERROR, E_USER_ERROR];
 
     public function __construct(LoggerInterface $logger)
@@ -190,6 +191,10 @@ class ErrorHandler
         if (!$this->hasFatalErrorHandler || !in_array($code, self::$fatalErrors, true)) {
             $level = $this->errorLevelMap[$code] ?? LogLevel::CRITICAL;
             $this->logger->log($level, self::codeToString($code).': '.$message, ['code' => $code, 'message' => $message, 'file' => $file, 'line' => $line]);
+        } else {
+            $trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
+            array_shift($trace); // Exclude handleError from trace
+            $this->lastFatalTrace = $trace;
         }
 
         if ($this->previousErrorHandler === true) {
@@ -211,7 +216,7 @@ class ErrorHandler
             $this->logger->log(
                 $this->fatalLevel === null ? LogLevel::ALERT : $this->fatalLevel,
                 'Fatal Error ('.self::codeToString($lastError['type']).'): '.$lastError['message'],
-                ['code' => $lastError['type'], 'message' => $lastError['message'], 'file' => $lastError['file'], 'line' => $lastError['line']]
+                ['code' => $lastError['type'], 'message' => $lastError['message'], 'file' => $lastError['file'], 'line' => $lastError['line'], 'trace' => $this->lastFatalTrace]
             );
 
             if ($this->logger instanceof Logger) {
diff --git a/src/Monolog/Handler/SocketHandler.php b/src/Monolog/Handler/SocketHandler.php
index e0a7b537..36ea0b5f 100644
--- a/src/Monolog/Handler/SocketHandler.php
+++ b/src/Monolog/Handler/SocketHandler.php
@@ -30,6 +30,7 @@ class SocketHandler extends AbstractProcessingHandler
     /** @var float */
     private $writingTimeout = 10;
     private $lastSentBytes = null;
+    private $chunkSize = null;
     private $persistent = false;
     private $errno;
     private $errstr;
@@ -130,6 +131,16 @@ class SocketHandler extends AbstractProcessingHandler
         $this->writingTimeout = (float) $seconds;
     }
 
+    /**
+     * Set chunk size. Only has effect during connection in the writing cycle.
+     *
+     * @param float $bytes
+     */
+    public function setChunkSize($bytes)
+    {
+        $this->chunkSize = $bytes;
+    }
+
     /**
      * Get current connection string
      *
@@ -176,6 +187,16 @@ class SocketHandler extends AbstractProcessingHandler
         return $this->writingTimeout;
     }
 
+    /**
+     * Get current chunk size
+     *
+     * @return float
+     */
+    public function getChunkSize()
+    {
+        return $this->chunkSize;
+    }
+
     /**
      * Check to see if the socket is currently available.
      *
@@ -218,6 +239,16 @@ class SocketHandler extends AbstractProcessingHandler
         return stream_set_timeout($this->resource, (int) $seconds, (int) $microseconds);
     }
 
+    /**
+     * Wrapper to allow mocking
+     *
+     * @see http://php.net/manual/en/function.stream-set-chunk-size.php
+     */
+    protected function streamSetChunkSize()
+    {
+        return stream_set_chunk_size($this->resource, $this->chunkSize);
+    }
+
     /**
      * Wrapper to allow mocking
      */
@@ -267,6 +298,7 @@ class SocketHandler extends AbstractProcessingHandler
     {
         $this->createSocketResource();
         $this->setSocketTimeout();
+        $this->setStreamChunkSize();
     }
 
     private function createSocketResource()
@@ -289,6 +321,13 @@ class SocketHandler extends AbstractProcessingHandler
         }
     }
 
+    private function setStreamChunkSize()
+    {
+        if ($this->chunkSize && !$this->streamSetChunkSize()) {
+            throw new \UnexpectedValueException("Failed setting chunk size with stream_set_chunk_size()");
+        }
+    }
+
     private function writeToSocket($data)
     {
         $length = strlen($data);
diff --git a/tests/Monolog/Handler/SocketHandlerTest.php b/tests/Monolog/Handler/SocketHandlerTest.php
index c0080e84..bc51a338 100644
--- a/tests/Monolog/Handler/SocketHandlerTest.php
+++ b/tests/Monolog/Handler/SocketHandlerTest.php
@@ -77,6 +77,13 @@ class SocketHandlerTest extends TestCase
         $this->assertEquals(10.25, $this->handler->getWritingTimeout());
     }
 
+    public function testSetChunkSize()
+    {
+        $this->createHandler('localhost:1234');
+        $this->handler->setChunkSize(1025);
+        $this->assertEquals(1025, $this->handler->getChunkSize());
+    }
+
     public function testSetConnectionString()
     {
         $this->createHandler('tcp://localhost:9090');
@@ -120,6 +127,19 @@ class SocketHandlerTest extends TestCase
         $this->writeRecord('Hello world');
     }
 
+    /**
+     * @expectedException UnexpectedValueException
+     */
+    public function testExceptionIsThrownIfCannotSetChunkSize()
+    {
+        $this->setMockHandler(array('streamSetChunkSize'));
+        $this->handler->setChunkSize(8192);
+        $this->handler->expects($this->once())
+            ->method('streamSetChunkSize')
+            ->will($this->returnValue(false));
+        $this->writeRecord('Hello world');
+    }
+
     /**
      * @expectedException RuntimeException
      */
@@ -305,6 +325,12 @@ class SocketHandlerTest extends TestCase
                 ->will($this->returnValue(true));
         }
 
+        if (!in_array('streamSetChunkSize', $methods)) {
+            $this->handler->expects($this->any())
+                ->method('streamSetChunkSize')
+                ->will($this->returnValue(8192));
+        }
+
         $this->handler->setFormatter($this->getIdentityFormatter());
     }
 }