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[Bug 1377513] Re: avalanche of messages from Launchpad on standard error

To: touch-packages@xxxxxxxxxxxxxxxxxxx
From: Christopher Yeleighton <giecrilj@xxxxxxxxxxxx>
Date: Sun, 05 Oct 2014 16:35:20 -0000
Reply-to: Bug 1377513 <1377513@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
** Description changed:

  When I use Launchpad as a desktop application starting it in a console:
  
  { /usr/bin/webapp-container --app-id=Launchpadlaunchpadnet
  --webapp=TGF1bmNocGFk --enable-back-forward; }
  
  the application prints lots of messages to the standard error.  The
  window does not handle mouse clicks while this happens, accumulating
  them into a buffer instead.  In particular, scrolling and navigation
  works only after it has stopped printing.
  
  The messages from a short session attached.
  
  Stack trace:
  
- #0  qt_message_print (msgType=msgType@entry=QtDebugMsg, context=..., 
-     message=...) at global/qlogging.cpp:929
+ #0  qt_message_print (msgType=msgType@entry=QtDebugMsg, context=...,
+     message=...) at global/qlogging.cpp:929
  #1  0x00007ffff77b8fbd in qt_message(QtMsgType, const QMessageLogContext &, const char *, typedef __va_list_tag __va_list_tag *, QString &) (
-     msgType=msgType@entry=QtDebugMsg, context=..., 
-     msg=msg@entry=0x7ffff6095053 "%s", ap=ap@entry=0x7fffffffc938, buf=...)
-     at global/qlogging.cpp:245
+     msgType=msgType@entry=QtDebugMsg, context=...,
+     msg=msg@entry=0x7ffff6095053 "%s", ap=ap@entry=0x7fffffffc938, buf=...)
+     at global/qlogging.cpp:245
  #2  0x00007ffff77b90f2 in QMessageLogger::debug (
-     this=this@entry=0x7fffffffcab0, msg=msg@entry=0x7ffff6095053 "%s")
-     at global/qlogging.cpp:261
- #3  0x00007ffff5ff9131 in writeToConsole (logType=Log, 
-     printStack=<optimized out>, ctx=<optimized out>, ctx=<optimized out>)
-     at qml/v8/qqmlbuiltinfunctions.cpp:1394
- #4  0x00007ffff5ec2202 in QV4::BuiltinFunction::call (that=0x7fffe8033650, 
-     callData=<optimized out>) at jsruntime/qv4functionobject.cpp:622
+     this=this@entry=0x7fffffffcab0, msg=msg@entry=0x7ffff6095053 "%s")
+     at global/qlogging.cpp:261
+ #3  0x00007ffff5ff9131 in writeToConsole (logType=Log,
+     printStack=<optimized out>, ctx=<optimized out>, ctx=<optimized out>)
+     at qml/v8/qqmlbuiltinfunctions.cpp:1394
+ #4  0x00007ffff5ec2202 in QV4::BuiltinFunction::call (that=0x7fffe8033650,
+     callData=<optimized out>) at jsruntime/qv4functionobject.cpp:622
  #5  0x00007ffff5e8e6ca in call (callData=0x7fffc2d66c28, this=<optimized out>)
-     at jsruntime/qv4functionobject_p.h:133
+     at jsruntime/qv4functionobject_p.h:133
  #6  QV4::__qmljs_call_property (context=0x7fffc00193e0, name=..., callData=...)
-     at jsruntime/qv4runtime.cpp:915
+     at jsruntime/qv4runtime.cpp:915
  #7  0x00007fffe00d8f3a in ?? ()
  
  (probably JIT-compiled, confuses gdb).
+ 
+ The offending message gets dumped from <URL: file:///usr/lib/x86_64
+ -linux-gnu/qt5/qml/Ubuntu/UnityWebApps/UnityWebApps.js#line=111 >.  This
+ ultimately evaluates to a serial call to console.log, which blocks the
+ application if the output device is slow.
+ 
  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: webapp-container 0.23+14.04.20140428-0ubuntu1
  ProcVersionSignature: Ubuntu 3.13.0-36.63-generic 3.13.11.6
  Uname: Linux 3.13.0-36-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.5
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Sat Oct  4 22:25:21 2014
  InstallationDate: Installed on 2014-08-20 (45 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  SourcePackage: webbrowser-app
  UpgradeStatus: No upgrade log present (probably fresh install)

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https://bugs.launchpad.net/bugs/1377513

Title:
  avalanche of messages from Launchpad on standard error

Status in “webbrowser-app” package in Ubuntu:
  New

Bug description:
  When I use Launchpad as a desktop application starting it in a
  console:

  { /usr/bin/webapp-container --app-id=Launchpadlaunchpadnet
  --webapp=TGF1bmNocGFk --enable-back-forward; }

  the application prints lots of messages to the standard error.  The
  window does not handle mouse clicks while this happens, accumulating
  them into a buffer instead.  In particular, scrolling and navigation
  works only after it has stopped printing.

  The messages from a short session attached.

  Stack trace:

  #0  qt_message_print (msgType=msgType@entry=QtDebugMsg, context=...,
      message=...) at global/qlogging.cpp:929
  #1  0x00007ffff77b8fbd in qt_message(QtMsgType, const QMessageLogContext &, const char *, typedef __va_list_tag __va_list_tag *, QString &) (
      msgType=msgType@entry=QtDebugMsg, context=...,
      msg=msg@entry=0x7ffff6095053 "%s", ap=ap@entry=0x7fffffffc938, buf=...)
      at global/qlogging.cpp:245
  #2  0x00007ffff77b90f2 in QMessageLogger::debug (
      this=this@entry=0x7fffffffcab0, msg=msg@entry=0x7ffff6095053 "%s")
      at global/qlogging.cpp:261
  #3  0x00007ffff5ff9131 in writeToConsole (logType=Log,
      printStack=<optimized out>, ctx=<optimized out>, ctx=<optimized out>)
      at qml/v8/qqmlbuiltinfunctions.cpp:1394
  #4  0x00007ffff5ec2202 in QV4::BuiltinFunction::call (that=0x7fffe8033650,
      callData=<optimized out>) at jsruntime/qv4functionobject.cpp:622
  #5  0x00007ffff5e8e6ca in call (callData=0x7fffc2d66c28, this=<optimized out>)
      at jsruntime/qv4functionobject_p.h:133
  #6  QV4::__qmljs_call_property (context=0x7fffc00193e0, name=..., callData=...)
      at jsruntime/qv4runtime.cpp:915
  #7  0x00007fffe00d8f3a in ?? ()

  (probably JIT-compiled, confuses gdb).

  The offending message gets dumped from <URL: file:///usr/lib/x86_64
  -linux-gnu/qt5/qml/Ubuntu/UnityWebApps/UnityWebApps.js#line=111 >.
  This ultimately evaluates to a serial call to console.log, which
  blocks the application if the output device is slow.

  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: webapp-container 0.23+14.04.20140428-0ubuntu1
  ProcVersionSignature: Ubuntu 3.13.0-36.63-generic 3.13.11.6
  Uname: Linux 3.13.0-36-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.5
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Sat Oct  4 22:25:21 2014
  InstallationDate: Installed on 2014-08-20 (45 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  SourcePackage: webbrowser-app
  UpgradeStatus: No upgrade log present (probably fresh install)

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References

[Bug 1377513] [NEW] avalanche of messages from Launchpad on standard error
From: Christopher Yeleighton, 2014-10-04