** Description changed:

  Crash on browsing watching youtube video from http://ubuntuonair.com.
  Expected it to play the whole hangout video but played less than a
  minute. After restarting the browser it crashed again with another
  random video off youtube in less than 10 seconds.
  
  Also fails on lernid, which I'm testing, and midori--all webkit
  browsers.
  
  Running today's live i386 CD from raring. (Today == 2013-3-3).
  
  No flash installed and therefore I assume that it is using html 5.
+ Running flash in lernid and midori avoids the problem as webkit seems to
+ use it in preference to html5--but that's just my guess.
  
  ProblemType: Crash
  DistroRelease: Ubuntu 13.04
  Package: epiphany-browser 3.6.1-2ubuntu1
  ProcVersionSignature: Ubuntu 3.8.0-9.18-generic 3.8.1
  Uname: Linux 3.8.0-9-generic i686
  ApportVersion: 2.9-0ubuntu2
  Architecture: i386
  CasperVersion: 1.330
  Date: Sun Mar  3 16:55:35 2013
  ExecutablePath: /usr/bin/epiphany-browser
  LiveMediaBuild: Ubuntu 13.04 "Raring Ringtail" - Alpha i386 (20130303)
  MarkForUpload: True
  ProcCmdline: epiphany-browser
  ProcEnviron:
-  TERM=xterm
-  PATH=(custom, no user)
-  XDG_RUNTIME_DIR=<set>
-  LANG=en_US.UTF-8
-  SHELL=/bin/bash
+  TERM=xterm
+  PATH=(custom, no user)
+  XDG_RUNTIME_DIR=<set>
+  LANG=en_US.UTF-8
+  SHELL=/bin/bash
  SegvAnalysis:
-  Segfault happened at: 0xb49fe2b9 
<_ZN3JSC3DFG15AssemblyHelpers17decodedCodeMapForEPNS_9CodeBlockE+473>:      mov 
   0x4(%edx),%edi
-  PC (0xb49fe2b9) ok
-  source "0x4(%edx)" (0x00000004) not located in a known VMA region (needed 
readable region)!
-  destination "%edi" ok
+  Segfault happened at: 0xb49fe2b9 
<_ZN3JSC3DFG15AssemblyHelpers17decodedCodeMapForEPNS_9CodeBlockE+473>:      mov 
   0x4(%edx),%edi
+  PC (0xb49fe2b9) ok
+  source "0x4(%edx)" (0x00000004) not located in a known VMA region (needed 
readable region)!
+  destination "%edi" ok
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: epiphany-browser
  StacktraceTop:
-  JSC::DFG::AssemblyHelpers::decodedCodeMapFor(JSC::CodeBlock*) () from 
/usr/lib/libjavascriptcoregtk-3.0.so.0
-  JSC::DFG::OSRExitCompiler::compileExit(JSC::DFG::OSRExit const&, 
JSC::Operands<JSC::ValueRecovery, JSC::OperandValueTraits<JSC::ValueRecovery> > 
const&, JSC::DFG::SpeculationRecovery*) () from 
/usr/lib/libjavascriptcoregtk-3.0.so.0
-  ?? () from /usr/lib/libjavascriptcoregtk-3.0.so.0
-  ?? ()
-  JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, 
JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) () from 
/usr/lib/libjavascriptcoregtk-3.0.so.0
+  JSC::DFG::AssemblyHelpers::decodedCodeMapFor(JSC::CodeBlock*) () from 
/usr/lib/libjavascriptcoregtk-3.0.so.0
+  JSC::DFG::OSRExitCompiler::compileExit(JSC::DFG::OSRExit const&, 
JSC::Operands<JSC::ValueRecovery, JSC::OperandValueTraits<JSC::ValueRecovery> > 
const&, JSC::DFG::SpeculationRecovery*) () from 
/usr/lib/libjavascriptcoregtk-3.0.so.0
+  ?? () from /usr/lib/libjavascriptcoregtk-3.0.so.0
+  ?? ()
+  JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, 
JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) () from 
/usr/lib/libjavascriptcoregtk-3.0.so.0
  Title: epiphany-browser crashed with SIGSEGV in 
JSC::DFG::AssemblyHelpers::decodedCodeMapFor()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  XsessionErrors:
-  (process:3675): GLib-GIO-WARNING **: g_settings_set_value: value for key 
'visual-bell-type' in schema 'org.gnome.desktop.wm.preferences' is outside of 
valid range
-  (process:3675): GLib-GIO-WARNING **: g_settings_set_value: value for key 
'visual-bell-type' in schema 'org.gnome.desktop.wm.preferences' is outside of 
valid range
-  (process:3675): GLib-GIO-WARNING **: g_settings_set_value: value for key 
'visual-bell-type' in schema 'org.gnome.desktop.wm.preferences' is outside of 
valid range
-  (gnome-settings-daemon:3483): libappindicator-CRITICAL **: 
app_indicator_set_label: assertion `IS_APP_INDICATOR (self)' failed
-  (process:8224): GLib-CRITICAL **: g_slice_set_config: assertion 
`sys_page_size == 0' failed
+  (process:3675): GLib-GIO-WARNING **: g_settings_set_value: value for key 
'visual-bell-type' in schema 'org.gnome.desktop.wm.preferences' is outside of 
valid range
+  (process:3675): GLib-GIO-WARNING **: g_settings_set_value: value for key 
'visual-bell-type' in schema 'org.gnome.desktop.wm.preferences' is outside of 
valid range
+  (process:3675): GLib-GIO-WARNING **: g_settings_set_value: value for key 
'visual-bell-type' in schema 'org.gnome.desktop.wm.preferences' is outside of 
valid range
+  (gnome-settings-daemon:3483): libappindicator-CRITICAL **: 
app_indicator_set_label: assertion `IS_APP_INDICATOR (self)' failed
+  (process:8224): GLib-CRITICAL **: g_slice_set_config: assertion 
`sys_page_size == 0' failed

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https://bugs.launchpad.net/bugs/1142947

Title:
  epiphany-browser crashed with SIGSEGV in Decoder()

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