Plexmedia Crashes when transcoding (HW)

TomasL · January 20, 2019, 2:28pm

Server Version#:3.77.4
Player Version#:N/A

As soon as I select a video to be transcoded Plexmedia Crashes and have to be restarted.
OS CentOS 7.6.1810
I5 9600K 16G memory on an MSIz370i Gaming Pro Carbon
LSI SAS to 6x6TB WD-RED MDADM Raid6 and one 128G SSD as system-disk.
HW Transcoding enabled.
Playback on Samsung SmartTV with the Plexmedia App
Media is:
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings : CABAC / 5 Ref Frames
Format settings, CABAC : Yes
Format settings, ReFrames : 5 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 2 h 14 min
Bit rate : 10.1 Mb/s
Width : 1 920 pixels
Height : 808 pixels
Display aspect ratio : 2.40:1
Frame rate mode : Constant
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.272
Stream size : 9.51 GiB (87%)
Writing library : x264 core 157 r2932 303c484
Encoding settings : cabac=1 / ref=5 / deblock=1:-3:-3 / analyse=0x3:0x113 / me=umh / subme=8 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=24 / lookahead_threads=4 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=23 / scenecut=40 / intra_refresh=0 / rc_lookahead=50 / rc=2pass / mbtree=1 / bitrate=10102 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / aq=1:1.00
Language : English
Default : Yes
Forced : No

Audio
ID : 2
Format : DTS
Format/Info : Digital Theater Systems
Codec ID : A_DTS
Duration : 2 h 14 min
Bit rate mode : Constant
Bit rate : 1 509 kb/s
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 kHz
Frame rate : 93.750 FPS (512 SPF)
Bit depth : 24 bits
Compression mode : Lossy
Stream size : 1.42 GiB (13%)
Language : English
Default : Yes
Forced : No

Text
ID : 3
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 1 h 17 min
Bit rate : 0 b/s
Count of elements : 16
Stream size : 362 Bytes (0%)
Title : English Gorced
Language : English
Default : No
Forced : Yes

straitpipe · January 20, 2019, 3:56pm

Plex version

Version 1.14.1.5488

Windows 10 17763.253

similar issue. Plex seems to crash when transcoding. unininstalled, reinstalled plex. reset TCP/IP stack, etc. Still crashes. Server icon disappears, Plex Media Server.exe pid disappears. nothing has changed on my setup. Been running plex 2+ years.

any ideas?

ChuckPa · January 20, 2019, 4:25pm

Ideas - no help
DEBUG log files , captured after it fails - help

Can you recreate the failure please ?
Settings - Server - Troubleshooting - Download Logs
Attach the ZIP file

(We almost always need the ZIP file. It lets us see what PMS is/was doing)

TomasL · January 20, 2019, 5:03pm

Realised that logs were disabled, Have enabled them now, and will re-create the crash
Anyway, this is what I can get from “messages”:

Jan 20 17:49:44 seedbox sh: Plex Media Server: intel_memman.c:38: intel_memman_init: Assertion intel->bufmgr' failed. Jan 20 17:49:44 seedbox sh: ****** PLEX MEDIA SERVER CRASHED, CRASH REPORT WRITTEN: /MediaShare/plexmedia/Library/Application Support/Plex Media Server/Crash Reports/1.14.1.5488-cc260c476/PLEX MEDIA SERVER/6c3317ba-e098-3e15-1dd78343-5e8d0e61.dmp Jan 20 17:49:44 seedbox abrt-hook-ccpp: Process 15429 (Plex Media Server) of user 991 killed by SIGABRT - dumping core Jan 20 17:49:45 seedbox abrt-hook-ccpp: Failed to create core_backtrace: waitpid failed: No child processes Jan 20 17:49:45 seedbox systemd: plexmediaserver.service: main process exited, code=killed, status=6/ABRT Jan 20 17:49:45 seedbox abrt-server: Package 'plexmediaserver' isn't signed with proper key Jan 20 17:49:45 seedbox abrt-server: 'post-create' on '/var/spool/abrt/ccpp-2019-01-20-17:49:44-15429' exited with 1 Jan 20 17:49:45 seedbox abrt-server: Deleting problem directory '/var/spool/abrt/ccpp-2019-01-20-17:49:44-15429' Jan 20 17:49:45 seedbox systemd: Unit plexmediaserver.service entered failed state. Jan 20 17:49:45 seedbox systemd: plexmediaserver.service failed. Jan 20 17:49:50 seedbox systemd: plexmediaserver.service holdoff time over, scheduling restart. Jan 20 17:49:50 seedbox systemd: Stopped Plex Media Server for Linux. Jan 20 17:49:50 seedbox systemd: Starting Plex Media Server for Linux... Jan 20 17:49:50 seedbox systemd: Started Plex Media Server for Linux. Jan 20 17:49:52 seedbox sh: Plex Media Server: intel_memman.c:38: intel_memman_init: Assertionintel->bufmgr’ failed.
Jan 20 17:49:52 seedbox sh: ****** PLEX MEDIA SERVER CRASHED, CRASH REPORT WRITTEN: /MediaShare/plexmedia/Library/Application Support/Plex Media Server/Crash Reports/1.14.1.5488-cc260c476/PLEX MEDIA SERVER/04b7f4fb-29ab-2f1b-2bb368e8-382c1b7f.dmp
Jan 20 17:49:52 seedbox abrt-hook-ccpp: Process 1917 (Plex Media Server) of user 991 killed by SIGABRT - ignoring (repeated crash)
Jan 20 17:49:52 seedbox systemd: plexmediaserver.service: main process exited, code=killed, status=6/ABRT
Jan 20 17:49:52 seedbox systemd: Unit plexmediaserver.service entered failed state.
Jan 20 17:49:52 seedbox systemd: plexmediaserver.service failed.

Jan 20 17:49:57 seedbox systemd: plexmediaserver.service holdoff time over, scheduling restart.
Jan 20 17:49:57 seedbox systemd: Stopped Plex Media Server for Linux.
Jan 20 17:49:57 seedbox systemd: Starting Plex Media Server for Linux…
Jan 20 17:49:57 seedbox systemd: Started Plex Media Server for Linux.

Jan 20 17:49:59 seedbox sh: Plex Media Server: intel_memman.c:38: intel_memman_init: Assertion `intel->bufmgr’ failed.
Jan 20 17:49:59 seedbox sh: ****** PLEX MEDIA SERVER CRASHED, CRASH REPORT WRITTEN: /MediaShare/plexmedia/Library/Application Support/Plex Media Server/Crash Reports/1.14.1.5488-cc260c476/PLEX MEDIA SERVER/33781a0c-048c-65db-73360ec2-743ecd3c.dmp
Jan 20 17:49:59 seedbox abrt-hook-ccpp: Process 2036 (Plex Media Server) of user 991 killed by SIGABRT - ignoring (repeated crash)
Jan 20 17:49:59 seedbox systemd: plexmediaserver.service: main process exited, code=killed, status=6/ABRT
Jan 20 17:49:59 seedbox systemd: Unit plexmediaserver.service entered failed state.
Jan 20 17:49:59 seedbox systemd: plexmediaserver.service failed.

Jan 20 17:50:01 seedbox systemd: Started Session 4889 of user root.
Jan 20 17:50:04 seedbox systemd: plexmediaserver.service holdoff time over, scheduling restart.
Jan 20 17:50:04 seedbox systemd: Stopped Plex Media Server for Linux.
Jan 20 17:50:04 seedbox systemd: Starting Plex Media Server for Linux…
Jan 20 17:50:04 seedbox systemd: Started Plex Media Server for Linux.

Jan 20 17:50:06 seedbox sh: Plex Media Server: intel_memman.c:38: intel_memman_init: Assertion `intel->bufmgr’ failed.
Jan 20 17:50:06 seedbox sh: ****** PLEX MEDIA SERVER CRASHED, CRASH REPORT WRITTEN: /MediaShare/plexmedia/Library/Application Support/Plex Media Server/Crash Reports/1.14.1.5488-cc260c476/PLEX MEDIA SERVER/3491e843-0197-57d1-520517ed-3954432e.dmp
Jan 20 17:50:06 seedbox abrt-hook-ccpp: Process 2147 (Plex Media Server) of user 991 killed by SIGABRT - dumping core
Jan 20 17:50:07 seedbox abrt-hook-ccpp: Failed to create core_backtrace: waitpid failed: No child processes
Jan 20 17:50:07 seedbox systemd: plexmediaserver.service: main process exited, code=killed, status=6/ABRT
Jan 20 17:50:07 seedbox systemd: Unit plexmediaserver.service entered failed state.
Jan 20 17:50:07 seedbox systemd: plexmediaserver.service failed.
Jan 20 17:50:07 seedbox abrt-server: Package ‘plexmediaserver’ isn’t signed with proper key
Jan 20 17:50:07 seedbox abrt-server: ‘post-create’ on ‘/var/spool/abrt/ccpp-2019-01-20-17:50:06-2147’ exited with 1
Jan 20 17:50:07 seedbox abrt-server: Deleting problem directory ‘/var/spool/abrt/ccpp-2019-01-20-17:50:06-2147’
Jan 20 17:50:12 seedbox systemd: plexmediaserver.service holdoff time over, scheduling restart.
Jan 20 17:50:12 seedbox systemd: Stopped Plex Media Server for Linux.
Jan 20 17:50:12 seedbox systemd: start request repeated too quickly for plexmediaserver.service
Jan 20 17:50:12 seedbox systemd: Failed to start Plex Media Server for Linux.
Jan 20 17:50:12 seedbox systemd: Unit plexmediaserver.service entered failed state.
Jan 20 17:50:12 seedbox systemd: plexmediaserver.service failed.

TomasL · January 20, 2019, 5:26pm

Problem is, the logs containes identifiable information on various information, like my IP, Lognname, tokens, media etc, despite that the box was un-checked, apart from that, i cannot find anything in the logs that hints about a crash.
However there is a folder called crash-reports

pl_5309 · January 20, 2019, 7:08pm

What is the kernel level on that server, I didn’t think the quick sync for that cpu was added till around 4.15 maybe later.

ChuckPa · January 20, 2019, 9:13pm

Any concerns with private information are gladly addressed by using PM .

Please include a link to the thread
Attach the ZIP to the thread.
Replies and main dialog will be in-thread (only sanitized data will be shown)

TomasL · January 20, 2019, 9:41pm

Linux 3.10.0-957.1.3.el7.x86_64 on x86_64

How do I add the ZIP-file?

ChuckPa · January 20, 2019, 9:45pm

The ZIP file may be added to any post by Drag+Drop and allowing to upload (A URL will be shown when upload is complete)

Alternatively, there is an Upload button at the top of the window where we type our replies.

TomasL · January 20, 2019, 10:18pm

Ok, here we go
Plex Media Server Logs_2019-01-20_18-13-39.zip (748.5 KB)

TomasL · January 20, 2019, 10:32pm

Updated the kernel to
Linux 4.20.3-1.el7.elrepo.x86_64 on x86_64
Will se tomorrow what is happening.

ChuckPa · January 20, 2019, 10:50pm

Thank you for the logs. Something is taking it down so hard the transcoder doesn’t actually start

It probes for the hardare and then processing dies hard

Jan 20, 2019 18:06:09.225 [0x7f092affd700] DEBUG - Codecs: testing h264_vaapi (encoder)
Jan 20, 2019 18:06:09.225 [0x7f092affd700] DEBUG - Codecs: hardware transcoding: testing API vaapi

TomasL · January 22, 2019, 5:57pm

With kernel “Linux 4.20.3-1.el7.elrepo.x86_64 on x86_64” it still chrashes.
Disabled HW Transcoding, and Plex is not crashing.
Obviously it has something to do with HW-transcoding.

TomasL · January 25, 2019, 4:16pm

Any news on to solve this?

ChuckPa · January 25, 2019, 6:25pm

It’s the new -9xxx CPU and the new kernel.
Nobody has it to find out what’s happening.
At present, we can’t reproduce it

The best determination we can make is the kernel driver (inside the kernel) has an issue.

TomasL · January 25, 2019, 6:58pm

So, how can I be at help, to solve this?

RyanDungeyMX · March 13, 2019, 12:13pm

@ChuckPa I would like to echo TomasL’s last question, i now also have a 9xxx cpu and i am unable to use hardware acceleration due to this exact problem.

What do we need to do?

ChuckPa · March 13, 2019, 2:11pm

We / somebody needs to verify that libva has been updated by Intel to support it concurrently with the kernel supporting the -9xxx processor’s i915. The combination i965/i915 must match up in order for HW acceleration to be detected and operate correctly.

If I had that hardware, I could go look. lspci will allow you to look and see if your kernel has support for it.

RyanDungeyMX · March 13, 2019, 2:17pm

Ubuntu 16.04 kernal 4.15.0

Is that what you are looking for?

system · June 11, 2019, 2:17pm

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Plexmedia Crashes when transcoding (HW)

Version 1.14.1.5488

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