Ubuntu 18.04.2 LTS - Plex Server Crashes - Double free or corruption (!prev)

Plex Media Server Desktops & Laptops
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Thanks! @taylrjones

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It looks like Plex dropped a new version on us today. Tautulli was telling me about a new update. It’s not on their PlexRepo yet (the one used with yum/dnf) from what I just checked, but here’s a direct link to it from their download webpage:

I’m going to go ahead and update from plexmediaserver-1.15.5.934-21b6f581b.x86_64 to plexmediaserver-1.15.6.1079-78232c603.x86_64 and see if there’s any improvement.

Cheers.

Edit: Looks like the build date of this new RPM is May 15th, even though it just became available today, according to my accounting of events.

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It was a beta release for more than a week:

Plex Service Crashing Error
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I have been using this new version (1.15.6.1079) and my server crashes every few hours. I had to go back to 1.15.4.993 for stability on my ubuntu 18.04.2 system

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Not sure if the same problem, but just shooting in that I had a lot of problems with Ubuntu 18.04.02 until I upgraded my ESXi host to 6.7.0 Update 2.

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This has nothing to do with host OS or platform other than general Linux. The issue has already been identified by Plex. They are working on a fix. Hopefully soon we will have a new build to test. Until then there is no point of conjecture since Plex has to provide a fix for a known problem they can reproduce.

Edit: In case others missed it in the thread.

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I am also going to roll back my docker, this crash happens at least daily since I have updated to 1.15.6.1079, before the update it was maybe once a month

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I was hoping to see more progress on this by now. Thank you to everyone that has put effort into solving this! Wondering what other people have to say about 1.15.6 1079? My 1.15.4 hasn’t crashed yet.

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I am sorry to say that whilst the crashes have been reproduced, we still do not have a repro in a debug environment - I am continuing to work with the development team to get the issue identified. Last attempt to follow my steps to reproduce the crash but in a development debug session failed to crash

Continuing to liaise with the development team to get this sorted

What I know is that it appears to be in the path of processing an end of transcode session

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@sa2000 a couple of users have mentioned it appears to occur with a transcode session ending that is using a plex relay connection and
The closing of that relay connection with transcode I believe. They advised that removing privileges from the relay executable to keep it from launching resolves the issue entirely for them. Are they able to attempt using a relay connection in the debug environment?

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I believe it is just a timing issue - so a relay connection may change the timing, Similarly switching to a debug environment changes the timing,. I will pass the info on.

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My server got worst since 1.15.6, 3 Crashes Today !

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I haven’t crashed since my last post about upgrading to 1.15.6.

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I’ve been trying to figure out a way to detect the crashes and auto restart plex. I have this script that works. The best way I’ve found to use it is to execute it in a root screen session, then detach the screen and let it run. When ever “PLEX MEDIA SERVER CRASHED” is written to the syslog it will execute the commands. You just need to edit the path to syslog.

https://pastebin.com/vSnUfBzC

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Well now it’s crashed twice in 24 hours. I guess I jinxed myself.

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This is strange, my Plex also crashed twice in the last 24 hours. With 21 days crash free!

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Thank you for sharing this. Going to try using this since these crashes are driving me crazy.

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Yup. Crashing here too. Ubuntu 18.04.

PMS 1.15.6.1079

Service remains active, although it’s unreachable. Tautulli can’t connect to the websocket either.

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I am also experiencing this issue, every few days Plex just crashes and just need to restart Plex.

PMS: Version 1.15.6.1079, Ubuntu 18.04.2, direct install.

May 29 18:51:11 server sh[23754]: double free or corruption (!prev)
May 29 18:51:11 server sh[23754]: ****** PLEX MEDIA SERVER CRASHED, CRASH REPORT WRITTEN:

My server as far as I can tell has been uploading the crash logs.

Plex Media Server.log last entry is about 17 seconds before the crash and doesn’t show any errors there.

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So does this new update Plex Media Server - #264 by Ridley help this issue in regards to the following bullet point?

(Database) Scheduled database backup job could cause a crash (#9993)

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