Optimise and transcoding not working

Server Version#: 1.15.6.1079
Player Version#: N/A
Plex Media Server Logs_2019-05-27_09-37-15.zip (2.8 MB)
Hi, I seem to be getting more and more issues with Plex, I am unable to optimise any media, it used to work, I have turned off Hardware Acceleration and changed the settings from auto to various options, my hardware hasnt changed, im running an i7 3700k, its running some overclock settings but has a max threshold of 4.2, Ive left if so that it auto speeds up on demand, its not just using intel turbo settings. To be Fair it only ever hits 4.2 when i use Handbrake, Plex does not stress it even when it starts to optimise. The PC is stable, it runs 24/7, I was hoping that if I can sort the optimise feature then this would also cure the problem I have with the transcoder crashing all the time, both internally and externally. I have included this mornings logs after I tried to run the optimise feature, please let me know if this isnt part of the server logs.

Alan

Oh it will probably be helpful to know that Handbrake no longer works on this machine either, I guess its all linked.

I’d turn off the overclock for starters. Things can start to fail when they used to work fine. You might do a memtest run overnight to see if things fail or not (free tool you can download online that’ll stress all your RAM and verify things read back as expected…good overclocking stress tool for CPU and RAM).

You also might try reformatting the OS drive and starting over. Seems like if handbrake can’t run then something is b0rken there.

Could try looking at log files (maybe turn on verbose mode?) and see if you can find a specific error to point at.

Thanks for the quick reply, I stress tested everything when I did the overclock, 4.2 is a very safe overclock for this cpu, even works on a standard cooler but I have a massive twin tower. I guess it could of started to get faulty, I have been putting off a format for a long time, it takes plex days to scan my music from scratch, i guess theres a backup option, just been putting it off as so much to do, I was hoping the log files would help but i dont know what im looking at, they say dont turn on verbose? Ok I will turn it on and upload that too.

I had an overclock go bad over time before is why I mentioned the possibility. memtest was how I proved to myself it wasn’t stable (had errors reported, but didn’t reboot during a many hour run).

I hadn’t heard about not turning on verbose. I just figured it should give more that way. But I’m a Plex newb, so take my advice as just a techie making guesses here. I assume a specific failure should point everyone at helping you better.

its worth a try while im waiting for one of the devs or someone who can read the logs, thanks.Plex Media Server Logs_2019-05-27_10-36-17.zip (2.7 MB)
Also heres the logs after I turned on verbose and restarted plex, I ran a couple of optimise options…

Seems it was the overclock after all, im waiting for someone to test the transcoder externally but ive just managed to optimise a movie, thanks again for the speedy reply, at least i can keep putting off the format c! I just set the bios to default, so it looks like it now runs from 1.6 at idle to 3.7Ghz when running optimise.

ATB.
Alan
EDIT: Transcoding working again too, very strange it stopped after working well for so long.

glad you found the cause

The logs just show the transcoder process crashing out with windows status 0xC0000028 which is

0xC0000028 STATUS_BAD_STACK 
An invalid or unaligned stack was encountered during an unwind operation.

overclocking does cause misalignment so probably it was an unaligned stack

I see the server is also crashing with last uploaded crash report for a crash on May 23 at 19:41. May be related to overclocking as well

Thanks for looking at the logs, sorry i didnt reply sooner, i didnt get an email update but i just happened to check back here…

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