diff --git a/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Collector/logger.html.twig b/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Collector/logger.html.twig
index 36a3fb0be2..7a8fa53b5f 100644
--- a/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Collector/logger.html.twig
+++ b/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Collector/logger.html.twig
@@ -1,16 +1,18 @@
 {% extends '@WebProfiler/Profiler/layout.html.twig' %}
 
+{% import _self as logger %}
+
 {% block toolbar %}
     {% if collector.counterrors or collector.countdeprecations %}
         {% set icon %}
             <img width="15" height="28" alt="Logs" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAcCAYAAABoMT8aAAAA4klEQVQ4y2P4//8/AyWYYXgYwOPp6Xnc3t7+P7EYpB6k7+zZs2ADNEjRjIwDAgKWgAywIUfz8+fPVzg7O/8AGeCATQEQnAfi/SAah/wcV1dXvAYUgORANA75ehcXl+/4DHAABRIe+ZrhbgAhTHsDiEgHBA0glA6GfSDiw5mZma+A+sphBlhVVFQ88vHx+Xfu3Ll7QP5haOjjwtuAuGHv3r3NIMNABqh8+/atsaur666vr+9XUlwSHx//AGQANxCbAnEWyGQicRMQ9wBxIQM0qjiBWAFqkB00/glhayBWHwb1AgB38EJsUtxtWwAAAABJRU5ErkJggg=="/>
             {% if collector.counterrors %}
-                {% set statusColor = "red" %}
+                {% set status_color = "red" %}
             {% else %}
-                {% set statusColor = "yellow" %}
+                {% set status_color = "yellow" %}
             {% endif %}
-            {% set errorCount = collector.counterrors + collector.countdeprecations %}
-            <span class="sf-toolbar-status sf-toolbar-status-{{ statusColor }}">{{ errorCount }}</span>
+            {% set error_count = collector.counterrors + collector.countdeprecations %}
+            <span class="sf-toolbar-status sf-toolbar-status-{{ status_color }}">{{ error_count }}</span>
         {% endset %}
         {% set text %}
             {% if collector.counterrors %}
@@ -35,9 +37,9 @@
     <span class="icon"><img src="data:image/png;base64,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" alt="Logger" /></span>
     <strong>Logs</strong>
     {% if collector.counterrors or collector.countdeprecations %}
-        {% set errorCount = collector.counterrors + collector.countdeprecations %}
+        {% set error_count = collector.counterrors + collector.countdeprecations %}
         <span class="count">
-            <span>{{ errorCount }}</span>
+            <span>{{ error_count }}</span>
         </span>
     {% endif %}
 </span>
@@ -56,7 +58,19 @@
                     <input type="hidden" name="panel" value="logger" />
                     <label for="priority">Priority</label>
                     <select id="priority" name="priority" onchange="document.getElementById('priority-form').submit(); ">
-                        {% for value, text in { 100: 'DEBUG', 200: 'INFO', 250: 'NOTICE', 300: 'WARNING', 400: 'ERROR', 500: 'CRITICAL', 550: 'ALERT', 600: 'EMERGENCY' } %}
+                        {# values < 0 are custom levels #}
+                        {% for value, text in {
+                            100: 'DEBUG',
+                            200: 'INFO',
+                            250: 'NOTICE',
+                            300: 'WARNING',
+                            400: 'ERROR',
+                            500: 'CRITICAL',
+                            550: 'ALERT',
+                            600: 'EMERGENCY',
+                            '-100': 'DEPRECATION only'
+                            }
+                        %}
                         <option value="{{ value }}"{{ value == priority ? ' selected' : '' }}>{{ text }}</option>
                         {% endfor %}
                     </select>
@@ -70,15 +84,9 @@
 
     {% if collector.logs %}
         <ul class="alt">
-            {% for log in collector.logs if log.priority >= priority %}
+            {% for log in collector.logs if priority >= 0 and log.priority >= priority or priority < 0 and log.context.type|default(0) == priority %}
                 <li class="{{ cycle(['odd', 'even'], loop.index) }}{% if log.priority >= 400 %} error{% elseif log.priority >= 300 %} warning{% endif %}">
-                    {{ log.priorityName }} - {{ log.message }}
-                    {% if log.context is defined and log.context is not empty %}
-                        <br />
-                        <small>
-                            <strong>Context</strong>: {{ log.context|yaml_encode }}
-                        </small>
-                    {% endif %}
+                    {{ logger.display_message(loop.index, log) }}
                 </li>
             {% else %}
                 <li><em>No logs available for this priority.</em></li>
@@ -90,3 +98,39 @@
         </p>
     {% endif %}
 {% endblock %}
+
+
+{% macro display_message(log_index, log) %}
+    {% if constant('Symfony\\Component\\HttpKernel\\Debug\\ErrorHandler::TYPE_DEPRECATION') == log.context.type|default(0) %}
+        DEPRECATION - Deprecated call in {{ log.context.file|format_file(log.context.line) }}.
+        {% set id = 'sf-call-stack-' ~ log_index %}
+        <a href="#" onclick="Sfjs.toggle('{{ id }}', document.getElementById('{{ id }}-on'), document.getElementById('{{ id }}-off')); return false;">
+            <img class="toggle" id="{{ id }}-off" alt="-" src="data:image/gif;base64,R0lGODlhEgASAMQSANft94TG57Hb8GS44ez1+mC24IvK6ePx+Wa44dXs92+942e54o3L6W2844/M6dnu+P/+/l614P///wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAABIALAAAAAASABIAQAVCoCQBTBOd6Kk4gJhGBCTPxysJb44K0qD/ER/wlxjmisZkMqBEBW5NHrMZmVKvv9hMVsO+hE0EoNAstEYGxG9heIhCADs=" style="display:none" />
+            <img class="toggle" id="{{ id }}-on" alt="+" src="data:image/gif;base64,R0lGODlhEgASAMQTANft99/v+Ga44bHb8ITG52S44dXs9+z1+uPx+YvK6WC24G+944/M6W28443L6dnu+Ge54v/+/l614P///wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAABMALAAAAAASABIAQAVS4DQBTiOd6LkwgJgeUSzHSDoNaZ4PU6FLgYBA5/vFID/DbylRGiNIZu74I0h1hNsVxbNuUV4d9SsZM2EzWe1qThVzwWFOAFCQFa1RQq6DJB4iIQA7" style="display:inline" />
+        </a>
+        {% for index, call in log.context.stack if index > 0 %}
+            {% if index == 1 %}
+                <ul class="sf-call-stack" id="{{ id }}" style="display: none">
+            {% endif %}
+            {% if call.class is defined %}
+                {% set from = call.class|abbr_class ~ '::' ~ call.function|abbr_method() %}
+            {% elseif call.function is defined %}
+                {% set from = call.function|abbr_method %}
+            {% elseif call.file is defined %}
+                {% set from = call.file %}
+            {% else %}
+                {% set from = '-' %}
+            {% endif %}
+
+            <li>Called from {{ call.file is defined and call.line is defined
+                ? call.file|format_file(call.line, from)
+                : from|raw
+                }}
+            </li>
+
+            {{ index == log.context.stack|length - 1 ? '</ul>' : '' }}
+        {% endfor %}
+    {% else %}
+        {{ log.priorityName }} - {{ log.message }}
+    {% endif %}
+{% endmacro %}
diff --git a/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/profiler.css.twig b/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/profiler.css.twig
index 6b8c045527..6f5cde5dc5 100644
--- a/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/profiler.css.twig
+++ b/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/profiler.css.twig
@@ -273,6 +273,10 @@ ul.alt li.warning {
     background-color: #ffcc00;
     margin-bottom: 1px;
 }
+ul.sf-call-stack li {
+    text-size: small;
+    padding: 0 0 0 20px;
+}
 td.main, td.menu {
     text-align: left;
     margin: 0;
diff --git a/src/Symfony/Component/HttpKernel/DataCollector/LoggerDataCollector.php b/src/Symfony/Component/HttpKernel/DataCollector/LoggerDataCollector.php
index 629b451f70..f08720e807 100644
--- a/src/Symfony/Component/HttpKernel/DataCollector/LoggerDataCollector.php
+++ b/src/Symfony/Component/HttpKernel/DataCollector/LoggerDataCollector.php
@@ -12,6 +12,7 @@
 namespace Symfony\Component\HttpKernel\DataCollector;
 
 use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpKernel\Debug\ErrorHandler;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\HttpKernel\Log\DebugLoggerInterface;
 
@@ -114,7 +115,7 @@ class LoggerDataCollector extends DataCollector
     {
         $count = 0;
         foreach ($this->logger->getLogs() as $log) {
-            if (isset($log['context']['type']) && 'deprecation' === $log['context']['type']) {
+            if (isset($log['context']['type']) && ErrorHandler::TYPE_DEPRECATION === $log['context']['type']) {
                 $count++;
             }
         }
diff --git a/src/Symfony/Component/HttpKernel/Debug/ErrorHandler.php b/src/Symfony/Component/HttpKernel/Debug/ErrorHandler.php
index f81ea58bf7..50eadfe0a5 100644
--- a/src/Symfony/Component/HttpKernel/Debug/ErrorHandler.php
+++ b/src/Symfony/Component/HttpKernel/Debug/ErrorHandler.php
@@ -21,6 +21,8 @@ use Symfony\Component\HttpKernel\Log\LoggerInterface;
  */
 class ErrorHandler
 {
+    const TYPE_DEPRECATION = -100;
+
     private $levels = array(
         E_WARNING           => 'Warning',
         E_NOTICE            => 'Notice',
@@ -82,9 +84,18 @@ class ErrorHandler
             return false;
         }
 
-        if ($level & E_USER_DEPRECATED || $level & E_DEPRECATED) {
+        if ($level & (E_USER_DEPRECATED | E_DEPRECATED)) {
             if (null !== self::$logger) {
-                self::$logger->warn($message, array('type' => 'deprecation', 'file' => $file, 'line' => $line));
+                $deprecation = array(
+                    'type' => self::TYPE_DEPRECATION,
+                    'file' => $file,
+                    'line' => $line,
+                    'stack' => version_compare(PHP_VERSION, '5.4', '<')
+                        ? array_slice(debug_backtrace(false), 0, 10)
+                        : debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 10)
+                );
+
+                self::$logger->warn($message, $deprecation);
             }
 
             return true;
diff --git a/src/Symfony/Component/HttpKernel/Debug/ExceptionHandler.php b/src/Symfony/Component/HttpKernel/Debug/ExceptionHandler.php
index 88ef3d7615..cfa624387e 100644
--- a/src/Symfony/Component/HttpKernel/Debug/ExceptionHandler.php
+++ b/src/Symfony/Component/HttpKernel/Debug/ExceptionHandler.php
@@ -91,7 +91,6 @@ class ExceptionHandler
      */
     public function getContent(FlattenException $exception)
     {
-        $title = '';
         switch ($exception->getStatusCode()) {
             case 404:
                 $title = 'Sorry, the page you are looking for could not be found.';
@@ -103,13 +102,10 @@ class ExceptionHandler
         $content = '';
         if ($this->debug) {
             try {
-                $message = nl2br($exception->getMessage());
-                $class = $this->abbrClass($exception->getClass());
                 $count = count($exception->getAllPrevious());
-                $content = '';
+                $total = $count + 1;
                 foreach ($exception->toArray() as $position => $e) {
                     $ind = $count - $position + 1;
-                    $total = $count + 1;
                     $class = $this->abbrClass($e['class']);
                     $message = nl2br($e['message']);
                     $content .= sprintf(<<<EOF
@@ -121,7 +117,7 @@ class ExceptionHandler
 
 EOF
                         , $ind, $total, $class, $message);
-                    foreach ($e['trace'] as $i => $trace) {
+                    foreach ($e['trace'] as $trace) {
                         $content .= '       <li>';
                         if ($trace['function']) {
                             $content .= sprintf('at %s%s%s(%s)', $this->abbrClass($trace['class']), $trace['type'], $trace['function'], $this->formatArgs($trace['args']));
diff --git a/src/Symfony/Component/HttpKernel/Tests/DataCollector/LoggerDataCollectorTest.php b/src/Symfony/Component/HttpKernel/Tests/DataCollector/LoggerDataCollectorTest.php
index c4ec7634a4..ea82d9d315 100644
--- a/src/Symfony/Component/HttpKernel/Tests/DataCollector/LoggerDataCollectorTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/DataCollector/LoggerDataCollectorTest.php
@@ -12,6 +12,7 @@
 namespace Symfony\Component\HttpKernel\Tests\DataCollector;
 
 use Symfony\Component\HttpKernel\DataCollector\LoggerDataCollector;
+use Symfony\Component\HttpKernel\Debug\ErrorHandler;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 
@@ -66,8 +67,8 @@ class LoggerDataCollectorTest extends \PHPUnit_Framework_TestCase
             array(
                 1,
                 array(
-                    array('message' => 'foo', 'context' => array('type' => 'deprecation')),
-                    array('message' => 'foo2', 'context' => array('type' => 'deprecation'))
+                    array('message' => 'foo', 'context' => array('type' => ErrorHandler::TYPE_DEPRECATION)),
+                    array('message' => 'foo2', 'context' => array('type' => ErrorHandler::TYPE_DEPRECATION))
                 ),
                 null,
                 2
diff --git a/src/Symfony/Component/HttpKernel/Tests/Debug/ErrorHandlerTest.php b/src/Symfony/Component/HttpKernel/Tests/Debug/ErrorHandlerTest.php
index 491a0a7106..fdd02eaaf5 100644
--- a/src/Symfony/Component/HttpKernel/Tests/Debug/ErrorHandlerTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/Debug/ErrorHandlerTest.php
@@ -68,10 +68,25 @@ class ErrorHandlerTest extends \PHPUnit_Framework_TestCase
         restore_error_handler();
 
         $logger = $this->getMock('Symfony\Component\HttpKernel\Log\LoggerInterface');
-        $logger->expects($this->once())->method('warn')->with(
-            $this->equalTo('foo'),
-            $this->equalTo(array('type' => 'deprecation', 'file' => 'foo.php', 'line' => '12'))
-        );
+
+        $that = $this;
+        $warnArgCheck = function($message, $context) use ($that) {
+            $that->assertEquals('foo', $message);
+            $that->assertArrayHasKey('file', $context);
+            $that->assertEquals($context['file'], 'foo.php');
+            $that->assertArrayHasKey('line', $context);
+            $that->assertEquals($context['line'], 12);
+            $that->assertArrayHasKey('type', $context);
+            $that->assertEquals($context['type'], ErrorHandler::TYPE_DEPRECATION);
+            $that->assertArrayHasKey('stack', $context);
+            $that->assertInternalType('array', $context['stack']);
+        };
+
+        $logger
+            ->expects($this->once())
+            ->method('warn')
+            ->will($this->returnCallback($warnArgCheck))
+        ;
 
         $handler = ErrorHandler::register(E_USER_DEPRECATED);
         $handler->setLogger($logger);