Abandoned Mu

[seldomshaven]

GB-PVR has been working fine for me for a few weeks now, until two days ago. Attempting to enter TV Guide now produces an error pop-up saying:

"Error: the wait completed due to an abandoned mutex"

Attempting to open the TV Guide a second time produces the message:

"Error: Object reference not set to an instance of an object"

After the second error message, the user-interface no longer accepts keyboard input, only mouse input.

Re-starting gbpvr.exe re-instates the mutex error message, for the first TV Guide attempt, after which it's the object instance message again.

In the GB-PVR.exe logfile the only errors are:

Code:

01/12/2006 16:06:57.024    ERROR    [1]    Unable to find node: /settings/SpecialElements/SpecialElement[@name="ForegroundTransparency"]

and later

Code:

01/12/2006 16:06:57.056    ERROR    [1]    Unable to find node: /settings/SpecialElements/SpecialElement[@name="MenuType"]

and of course

Code:

01/12/2006 17:06:56.145    ERROR    [1]    Error: msg=0x100 (WM_KEYDOWN) hwnd=0x1202a8 wparam=0xd lparam=0x1c0001 result=0x0  :  System.Threading.AbandonedMutexException: The wait completed due to an abandoned mutex.
   at System.Threading.WaitHandle.WaitOne(Int64 timeout, Boolean exitContext)
   at System.Threading.WaitHandle.WaitOne(Int32 millisecondsTimeout, Boolean exitContext)
   at System.Threading.WaitHandle.WaitOne()
   at GBPVR.x05e13382b8294c7a.Activate()
   at GBPVR.x86396f56243de9fb.OnKeyDown(KeyEventArgs e)
   at GBPVR.xbb1566157f5f8b1f.xdae9991ab918b397(Object xdf2e3583f942db7b, KeyEventArgs xc4f45905cb1fc7ba)
   at System.Windows.Forms.Control.OnKeyDown(KeyEventArgs e)
   at System.Windows.Forms.Control.ProcessKeyEventArgs(Message& m)
   at System.Windows.Forms.Control.ProcessKeyMessage(Message& m)
   at System.Windows.Forms.Control.WmKeyChar(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
   at System.Windows.Forms.ContainerControl.WndProc(Message& m)
   at System.Windows.Forms.Form.WndProc(Message& m)
   at GBPVR.xbb1566157f5f8b1f.WndProc(Message& m)

and finally

Code:

01/12/2006 17:07:00.702    ERROR    [1]    Error: msg=0x100 (WM_KEYDOWN) hwnd=0x1202a8 wparam=0xd lparam=0x1c0001 result=0x0  :  System.NullReferenceException: Object reference not set to an instance of an object.
   at GBPVR.x05e13382b8294c7a.render(Boolean& requiresMoreRendering)
   at GBPVR.x86396f56243de9fb.render(Boolean& requiresMoreRendering)
   at GBPVR.xbb1566157f5f8b1f.xdae9991ab918b397(Object xdf2e3583f942db7b, KeyEventArgs xc4f45905cb1fc7ba)
   at System.Windows.Forms.Control.OnKeyDown(KeyEventArgs e)
   at System.Windows.Forms.Control.ProcessKeyEventArgs(Message& m)
   at System.Windows.Forms.Control.ProcessKeyMessage(Message& m)
   at System.Windows.Forms.Control.WmKeyChar(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
   at System.Windows.Forms.ContainerControl.WndProc(Message& m)
   at System.Windows.Forms.Form.WndProc(Message& m)
   at GBPVR.xbb1566157f5f8b1f.WndProc(Message& m)

I don't remember having seen the first two errors before now, so could it just be that my config and/or gbpvr database have been trashed somehow?

[sub]

You can ignore the first errors. Zip and attach a complete gbpvr.exe.log that shows the other error and I'll take a look.

[seldomshaven]

Here you go. This log is from using the mouse to enter TV Guide but the effect is the same (mutex & null object errors), except that keyboard input carries on working...

[sub]

I'm not really sure. Does it do this every time now? If you just start GB-PVR and click the TV Guide button, does it generate this error?

[seldomshaven]

Yes, it was completely fine for a few weeks but now it does this every time. FYI, I'm running GB-PVR 0.98.13b with the GB-PVR.exe that fixes the menu-rendering-during-playback issue.

I've tried stopping everything & swapping gbpvr.db3 out for empty.db3, to see if that shows the same error. Now it shows the "no channels are configured" message - would that means it's getting past whatever mutex-wait it's crashing in, or do I need to configure a source to test that fully?

[sub]

I've tried stopping everything & swapping gbpvr.db3 out for empty.db3, to see if that shows the same error. Now it shows the "no channels are configured" message - would that means it's getting past whatever mutex-wait it's crashing in, or do I need to configure a source to test that fully?

You'd need to have set up a capture source with channels to have got as far as that error you received.

[seldomshaven]

You'd need to have set up a capture source with channels to have got as far as that error you received.

OK. I've copied empty.db3 over gbpvr.db3 (after taking copies of that and config.xml) and have then re-configured one of the two tuners & then been able to successfully get in to TV Guide.

Does this suggest that my programme database has something funky in it?

[sub]

Yeah, sounds like it. I cant think what data would do that though.

[Jams6502]

Hi

I've been having a similar problem with the "Abandoned mutex" - I think I've found the source of my problem, which was indeed bad data in the EPG.

See post at : http://forums.nextpvr.com/showthread.php?t=21346

Good luck

Jimmy