<solved> [NPVR 2.3.6] resource-exhaustion / memory leak

[ShiningDragon]

I've just checked if the nic has failed or something similar, but the eventviewer isn't showing any network loss.

But i think we make progress, just small steps, but we'll get new wisdom.

Conclusion until now:
NextPVR.exe 2.3.6 is freezing and/or eating up memory/system resources in clientmode after hours.
Disabling some functions from NextPVR through subs patch didn't changed anything to the memory consumption, so the problem isn't the osd (or the other things sub disabled within the hotfix)
The NRecord.log shows in the timezone of malfunction database related errors on the client, while the server logfiles are fine.

I wouldn't wonder if this could have something to do with the network portion.

Ah, that's a hard one. If the above steps doesn't change anything, then i'll switch over from clientmode to standalonemode and hope to see a difference.

@whurlston & mvavelland
Thank you anyway for every tip and help!

EDIT1:
Just started the 2nd client doing the same stuff as the 1st one. Let's find out if this could be reproduced on different clients, or not.

EDIT2:
The NextPVR Task just freezed again on the mediacenter and left the os unusable. No remoteconnection, no mouse/keyboard support. NextPVR.exe Task couldn't fully killed. After resetting the machine, the filesystem were damaged again.
I'll start over again, this time with disabled NRecord.exe and NTray.exe.
Attached Logs.zip from this "malfunction". Perfmon couldn't captured because of the malfunction.

[mvallevand]

NextPVR.exe 2.3.6 is freezing and/or eating up memory/system resources in clientmode after hours.

Is your leak on the client, the host or both?

Martin

[ShiningDragon]

The leakage is on every system, but it's small compared to the mediacenter which has a huge leakage. The attached screenshot shows you the consumption of another client, my workstation. It's running since hours and the leakage is small. No problem until now, even NRecord.exe is nice and don't produces errors.

The current run of the mediacenter does looks good at the moment too, it's playing back simpsons stuff since 4,5 hours. Even without swapfile and with the genuine 2.3.6 nextpvr.exe there's enough free ram left for now.

Perhaps i were wrong with nextpvr.exe and the cause for the freezes is nrecord.exe! This one i have disabled this time on the mediacenter (client).

Server HomeServer 01: Win 7 x86_64 (16 GiB ram, 24 GiB swap) -> no problems at all
Client WorkStation 01: Win 7 x86_64 (16 GiB ram, no swap) -> no problems at all
Client MediaCenter 01: Win 7 x86_32 (4 GiB ram, no swap) -> a lot of malfunctions after playing nonstop videos after ~4-7 hours

In a few hours i'll know more. If the MediaCenter doesn't freeze, then we have finally the cause (nrecord.exe service). Then we will have to find out, why just on this system and not on the other ones.

EDIT:
I think i'll setup now 2 vms. One with 32-Bit Win7 and one with 64-Bit Win7. Let 'em run on the same host with same settings and observe.

Really, i got a headache with this problem. XD

Well F***, was happy to soon. It crashed again, even without nrecord.exe. I have enough played with my mediacenter for now. I am not interested to kill my ssd. The mediacenter goes back to 2.2.6 and i'll first test within virtual machines as mentioned above.

Ok, WorkStation 01 (the 64-Bit Client) just stopped too. NextPVR has a malfunction and stays residental as task. I can't kill the process. Logs are fine without errormessage.
This machine ran 7,5 hours nonstop without any problem.

So there's no problem related to 32 or 64 bit. It's no problem related to swapfile yes/no. It's no problem related to iMon VFD (MediaCenter). It's not related to NTray.exe or NRecord.exe.

The only system which doesn't have any problem is the system which doesn't run nextpvr.exe: The HomeServer, which is running only NRecord and NTray.

Does anyone else, besides me, has running npvr.exe at least for 7 hours playing back movies without quitting nextpvr.exe?

[whurlston]

My main machine typically has NextPVR.exe running for weeks on end and I've not encountered the issue. I use it to watch Bluray movies and recordings. It's also serving as the server for a PC client and an NMT. The PC client usually runs NextPVR for days at a time as well.

[ShiningDragon]

You're talking about NPVR 2.3.6? ;D

Until 2.2.6 with latest hotfixes it was the same by me. The mediacenter wasn't rebooted (suspend to ram for the win) and NextPVR all the time residental in the memory. And sometimes i let run hundreds of episodes of a show the whole day and night with absolutely no problems.
This ended with the FRESH and CLEAN installation of NPVR 2.3.6

[whurlston]

2.3.6 has run for at least 12 hours on several occasions for me. I never put the machine to sleep though. I also disable power savings on my NICs.

The last graph you posted doesn't look bad actually. .Net applications can commonly look like that because of the way .Net works. Memory doesn't get reclaimed by the OS until it needs it and the Garbage Collector does it's job.

[ShiningDragon]

No, my question was primary if you let NextPVR.exe let run videos nonstop. Like a lot of episodes of tv shows (as i did since yesterday with the simpsons). NextPVR.exe alone in ram isn't a problem. I didn't checked the behaviour on music or photos for now.
My NICs don't use powersettings too. I experienced a lot of problems with shit like "Green Ethernet" and "Powerdown". Even realtek lan adapters were not good enough for me, so that i bought boards containing intel network interface cards (just the best onboard nics).

The last graph was scaled down, so the raising isn't TOO high. But the process nextpvr.exe reached at least ~ 2 GiB. AFAIK, excuse me if i were wrong, this is the upper limit for a 32 bit process.

[whurlston]

My mistake. I've probably run about 5 hours of video "nonstop" at the most. I can run a test tonight.

[mvallevand]

If 2 out of 3 machines run correctly, and other peoples machines work too, I'd suspect a local problem.

Martin

[ShiningDragon]

This would be very kindly of you. =) The last tests showed me, that it can happen after 4 hours or later after 7/8 hours. NextPVR.exe is growing up to 2 GiB (on my machines) and then *baamam* -> death.

I really need to buy more coffee the next days. lol

@mvallevand
I don't think so. I would bet it could be 3 of 3 machines or even 9 of 9 machines, but i am not crazy enough to experiment with my server and other pcs until this one is cleared.
The problem seems finally to show itself, if the process is reaching 2 GiB. Not many people let their videoarchive play the whole night. XD Perhaps other ppl having this too, but don't experience it because the process isn't running long enough. I really don't know. If i had an answer, then i wouldn't post here. ;D