NDigitalHost.exe crashes during EPG update (scheduled or manual)

[martinu]

NextPVR 4.0.4 (171121)

The last two nights NDigitalHost.exe has crashed on my PC as it was run from the schedule to update the EPG. It also does this if I update the EPG manually from Settings | Channels.

On one occasion, restarting the recording service allowed me to update manually, but it hasn't worked this time.

It consistently crashes at the end of the 60-second timer for the third of eight multiplexes: if it's relevant, it's at the end of mux COM4 or the beginning of mux COM5.

What evidence do you need? These are the crash reports from Control Panel | Admin Tools | Event Viewer

Scheduled on 24 Nov

log Name: Application
Source: Application Error
Date: 24/11/2017 03:24:27
Event ID: 1000
Task Category: (100)
Level: Error
Keywords: Classic
User: N/A
Computer: Martin-7
Description:
Faulting application name: NDigitalHost.exe, version: 1.0.0.0, time stamp: 0x5a08bb89
Faulting module name: clr.dll, version: 4.7.2116.0, time stamp: 0x59c476d5
Exception code: 0xc0000005
Fault offset: 0x0001e2e4
Faulting process id: 0x17a4
Faulting application start time: 0x01d36409dd71dc0e
Faulting application path: C:\Program Files (x86)\NPVR\NDigitalHost.exe
Faulting module path: C:\Windows\Microsoft.NET\Framework\v4.0.30319\clr.dll
Report Id: f9768a33-d0c6-11e7-bd2d-00262d16c112
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Application Error" />
<EventID Qualifiers="0">1000</EventID>
<Level>2</Level>
<Task>100</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2017-11-24T03:24:27.000000000Z" />
<EventRecordID>296454</EventRecordID>
<Channel>Application</Channel>
<Computer>Martin-7</Computer>
<Security />
</System>
<EventData>
<Data>NDigitalHost.exe</Data>
<Data>1.0.0.0</Data>
<Data>5a08bb89</Data>
<Data>clr.dll</Data>
<Data>4.7.2116.0</Data>
<Data>59c476d5</Data>
<Data>c0000005</Data>
<Data>0001e2e4</Data>
<Data>17a4</Data>
<Data>01d36409dd71dc0e</Data>
<Data>C:\Program Files (x86)\NPVR\NDigitalHost.exe</Data>
<Data>C:\Windows\Microsoft.NET\Framework\v4.0.30319\clr.dll</Data>
<Data>f9768a33-d0c6-11e7-bd2d-00262d16c112</Data>
</EventData>
</Event>


Manual on 25 Nov, after restarting recording service

Log Name: Application
Source: Application Error
Date: 25/11/2017 09:04:42
Event ID: 1000
Task Category: (100)
Level: Error
Keywords: Classic
User: N/A
Computer: Martin-7
Description:
Faulting application name: NextPVR.exe, version: 1.0.0.0, time stamp: 0x5a08bb8a
Faulting module name: clr.dll, version: 4.7.2116.0, time stamp: 0x59c476d5
Exception code: 0xc0000005
Fault offset: 0x0001e2e4
Faulting process id: 0x5b4
Faulting application start time: 0x01d365cafda1141f
Faulting application path: C:\Program Files (x86)\NPVR\NextPVR.exe
Faulting module path: C:\Windows\Microsoft.NET\Framework\v4.0.30319\clr.dll
Report Id: ac1676a7-d1bf-11e7-bd2d-00262d16c112
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Application Error" />
<EventID Qualifiers="0">1000</EventID>
<Level>2</Level>
<Task>100</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2017-11-25T09:04:42.000000000Z" />
<EventRecordID>296548</EventRecordID>
<Channel>Application</Channel>
<Computer>Martin-7</Computer>
<Security />
</System>
<EventData>
<Data>NextPVR.exe</Data>
<Data>1.0.0.0</Data>
<Data>5a08bb8a</Data>
<Data>clr.dll</Data>
<Data>4.7.2116.0</Data>
<Data>59c476d5</Data>
<Data>c0000005</Data>
<Data>0001e2e4</Data>
<Data>5b4</Data>
<Data>01d365cafda1141f</Data>
<Data>C:\Program Files (x86)\NPVR\NextPVR.exe</Data>
<Data>C:\Windows\Microsoft.NET\Framework\v4.0.30319\clr.dll</Data>
<Data>ac1676a7-d1bf-11e7-bd2d-00262d16c112</Data>
</EventData>
</Event>

Do you need anything else? I've not seen the problem before yesterday and I'm not aware of making any significant changes (eg installing new software or drivers) for a while. I can still make scheduled recordings - I've just tried a manual one.

Later...

I have an NPVR.exe.dmp file which I've zipped and uploaded to my webspace http://www.martinunderwood.f9.co.uk/NPVR...e.1460.zip (I tried to add as attachment to the thread, but there was a 2.5 MB limit for ZIP files and mine is 6.5 MB). This relates to the second Event Log trace above 25/11/2017 09:04:42

I notice that the first event log relates to Faulting application path NDigitalHost.exe (scheduled) and the second to NPVR.exe (manual) but both refer to Faulting module path: C:\Windows\Microsoft.NET\Framework\v4.0.30319\clr.dll

[sub]

Unfortunately that dmp file doesn't seem to show the actual cause.

If you create a c:\temp directory, do you get a c:\temp\crash.mdmp when this happens? If so please supply.

If that doesn't help, I might need to use TSCapture (eval version) to grab a 1 minute full transport of that problem frequency, and put the file somewhere I can download it, so I can try a EPG update here from the data in your area.