# Wowza crashed when start to transcode everytime **URL:** \ **Category:** Wowza Streaming Engine\ **Created:** [June 25, 2015, 12:44am UTC](https://community.wowza.com/t/wowza-crashed-when-start-to-transcode-everytime/45284 "2015-06-25T00:44:17Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![zheng\_leo](https://avatars.discourse-cdn.com/v4/letter/z/c67d28/32.png) [@zheng\_leo](https://community.wowza.com/u/zheng_leo)\ **Post date:** [June 25, 2015, 12:44am UTC](https://community.wowza.com/t/wowza-crashed-when-start-to-transcode-everytime/45284/1 "2015-06-25T00:44:17Z")
Hello, I got a crash when started to transcode, the log as follows: iptv@CIKDECODESVR-TOR11:~/wowza/bin$ sudo ./startup.sh Configure logging: file:///usr/local/WowzaStreamingEngine/conf/log4j.properties INFO server server-start Wowza Streaming Engine 4 Monthly Edition 4.1.2 build13947 - INFO server comment - Server License Key: ENGM4-XXXXX-XXXXX-XXXXX-XXXXX-AvQBP INFO server comment - Maximum Connections: Unlimited INFO server comment - Maximum Incoming Streams: Unlimited INFO server comment - Transcoder Streams Available: Unlimited INFO server comment - Transcoder Watermark: No INFO server comment - nDVR Available: Yes INFO server comment - DRM Available: Yes INFO server comment - HTTP Origin Available: Yes INFO server comment - Push Publish Available: Yes INFO server comment - REST API Available: No INFO server comment - Hardware Available Processors: 8 INFO server comment - Hardware Physical Memory: 9495MB/11807MB INFO server comment - Hardware Swap Space: 12075MB/12075MB INFO server comment - Max File Descriptor Count: 20000 INFO server comment - Open File Descriptor Count: 64 INFO server comment - OS Name: Linux INFO server comment - OS Version: 3.14.5-custom INFO server comment - OS Architecture: amd64 INFO server comment - Java Name: Java HotSpot™ 64-Bit Server VM INFO server comment - Java Vendor: Oracle Corporation INFO server comment - Java Version: 1.8.0\_45 INFO server comment - Java VM Version: 25.45-b02 INFO server comment - Java Spec Version: 1.8 INFO server comment - Java Home: /usr/local/jdk/jre INFO server comment - Java Max Heap Size: 3933MB INFO server comment - Java Architecture: 64 INFO server comment - Java Locale[user.language]: en INFO server comment - Java Locale[user.country]: CA INFO server comment - Java Locale[file.encoding]: UTF-8 INFO server comment - Java Timezone[user.timezone]: America/Toronto INFO server comment - Java Args[0]: -Xmx4000M INFO server comment - Java Args[1]: -XX:+UseConcMarkSweepGC INFO server comment - Java Args[2]: -XX:+UseParNewGC INFO server comment - Java Args[3]: -XX:NewSize=256m INFO server comment - Java Args[4]: -Djava.net.preferIPv4Stack=true INFO server comment - Java Args[5]: -Dcom.sun.management.jmxremote=true INFO server comment - Java Args[6]: -Dcom.wowza.wms.runmode=standalone INFO server comment - Java Args[7]: -Dcom.wowza.wms.native.base=linux INFO server comment - Java Args[8]: -Dcom.wowza.wms.AppHome=/usr/local/WowzaStreamingEngine INFO server comment - Java Args[9]: -Dcom.wowza.wms.ConfigURL= INFO server comment - Java Args[10]: -Dcom.wowza.wms.ConfigHome=/usr/local/WowzaStreamingEngine INFO server comment - Server runmode: standalone INFO server comment - Server native.platform: linux INFO server comment - Server threads[h/t]: 480/320 INFO server comment - RESTServer: Bind attempt ([any]:8087) INFO server comment - RESTServer: Bind successful ([any]:8087) INFO server comment - Wowza REST API started INFO server comment - RESTServer: Using configs from:/usr/local/WowzaStreamingEngine/ INFO server comment - RESTServer: SSL:No INFO server comment - RESTServer: BasicAuth:No INFO server comment - RESTServer: Digest:Yes INFO server comment - RESTServer: XML Viewer:No INFO server comment - REST Documentation Server has been disabled. INFO server comment - CMDInterface now listening: [any]:8083 INFO server comment - MediaCache[MediaCache]: Thread pool size: [writer/readahead]:16/8 INFO server comment - MediaCache[MediaCache]: MAX Pending size: [writer/readahead]:500M/25M INFO server comment - MediaCache[MediaCache]: Add store: path:/usr/local/WowzaStreamingEngine/mediacache maxSize:10737418240 INFO server comment - MediaCache[MediaCache]: Add source[dvrorigin]: prefix:dvrorigin/ basePath:http:// INFO server comment - MediaCache[MediaCache]: Flushing cache: start INFO server comment - MediaCache[MediaCache]: Flushing cache: done INFO server comment - MediaCache[MediaCache]: Start MediaCache GC INFO server comment - MediaCache[MediaCache]: Started INFO server comment - REST API: ready INFO vhost vhost-start _defaultVHost_ - INFO server comment - _defaultVHost_ threads[h/t]:0/0 home:/usr/local/WowzaStreamingEngine INFO vhost comment _defaultVHost_ Bind attempt ([any]:1935:16) INFO vhost comment _defaultVHost_ Bind successful ([any]:1935) INFO vhost comment _defaultVHost_ Bind attempt ([any]:8086:4) INFO vhost comment _defaultVHost_ Bind successful ([any]:8086) INFO server comment - Server.startShutdownHook: Start server shutdown hook INFO server comment - StatsManager:startManager() Enabled=true INFO server comment - Wowza Streaming Engine is started! * * * INFO server comment - REST API: Restart Application: Application (live) shutdown INFO server comment - MediaCasterStreamValidator.init[live/_definst_]: Started INFO server comment - ModuleCoreSecurity.onAppStart[live/_definst_]: Publish: AllowedEncoders: securityPublishValidEncoders:Wirecast/|FME/|FMLE/|Wowza GoCoder\* INFO server comment - ModuleCoreSecurity.onAppStart[live/_definst_]: Publish: block duplicate stream names : false INFO server comment - ModuleCoreSecurity.onAppStart[live/_definst_]: Publish: RTMP Authorization: password file:/usr/local/WowzaStreamingEngine/conf/publish.password INFO server comment - ModuleCoreSecurity.onAppStart[live/_definst_]: Play: SecureConnection: securityPlayRequireSecureConnection:false INFO server comment - ModuleCoreSecurity.onAppStart[live/_definst_]: Play: securitySecureTokenVersion property is missing, using SecureToken Version 1, play security enabled for RTMP only INFO application app-start _definst_ live/_definst_ INFO server comment - RTPMediaCaster.create[243282559] INFO server comment - RTPMediaCaster.init[243282559] INFO server comment - RTPMediaCaster.Reconnector[243282559:live/_definst_:live11.stream]: start: 1 INFO server comment - REST API: Stream File connected: live11.stream INFO server comment - RTPSessionDescriptionDataProviderBasic.getStreamInfo[live/_definst_]: URI: udp://235.1.1.11:267 INFO stream create - - INFO server comment - RTPDePacketizerMPEGTS.init: Drop incomplete video frames INFO stream publish live11.stream - INFO server comment - MulticastTransport.bind[live/_definst_]: 235.1.1.11/267 INFO server comment - RTPMediaCaster.Reconnector[243282559:live/_definst_:live11.stream]: done: 1 INFO server comment - MulticastTransport.firstPacket: 235.1.1.11/267 INFO server comment - [live/_definst_/live11.stream]: handleTransportStreamBlock: new MPTS. INFO server comment - [live/_definst_/live11.stream]: MPEG2PATAssembler:MonitorStart INFO server comment - [live/_definst_/live11.stream]: MPEG2MPTS:StartStream: PID: 0x0 INFO server comment - [live/_definst_/live11.stream]: Received PAT INFO server comment - [live/_definst_/live11.stream]: PAT Version 2 INFO server comment - [live/_definst_/live11.stream]: Program: 1 PMT PID: 0x1e0 INFO server comment - [live/_definst_/live11.stream]: MPEG2PMTAssembler:MonitorStart: PID: 480 Program Number: 1 INFO server comment - [live/_definst_/live11.stream]: MPEG2MPTS:StartStream: PID: 0x1e0 INFO server comment - MediaCasterStreamValidator.addMonitor[live/_definst_/live11.stream] INFO server comment - [live/_definst_/live11.stream]: Received new PMT INFO server comment - [live/_definst_/live11.stream]: PMT: Version 2 PCR pid: 0x1e1 INFO server comment - [live/_definst_/live11.stream]: Stream: Type: 0x02 PID: 0x1e1 Video INFO server comment - [live/_definst_/live11.stream]: Descriptor (131) : (1) INFO server comment - [live/_definst_/live11.stream]: Stream: Type: 0x81 PID: 0x1e2 Audio INFO server comment - [live/_definst_/live11.stream]: LanguageDescriptor (10) : Languages: eng Encoding: 0 INFO server comment - [live/_definst_/live11.stream]: Stream: Type: 0x81 PID: 0x1e3 Audio INFO server comment - [live/_definst_/live11.stream]: LanguageDescriptor (10) : Languages: enm Encoding: 0 INFO server comment - [live/_definst_/live11.stream]: RTPDePacketizerMPEGTS.pmtAvailable: IMPORT: videoPID[prg:0xffffffff,pid:0x1e1,filter:none]: streamType:MPEG2:2 INFO server comment - [live/_definst_/live11.stream]: MPEG2MPTS:StartStream: PID: 0x1e1 INFO server comment - [live/_definst_/live11.stream]: RTPDePacketizerMPEGTS.pmtAvailable: IMPORT: audioPID[prg:0x1,pid:0x1e2,filter:none]: streamType:AC3:129 audioLanguage:eng INFO server comment - [live/_definst_/live11.stream]: MPEG2MPTS:StartStream: PID: 0x1e2 INFO server comment - [live/_definst_/live11.stream]: Received first video TS Packet INFO server comment - [live/_definst_/live11.stream]: Received first audio TS Packet INFO server comment - TranscoderSessionNative.loadLibrary: Load transcoder list file: /usr/local/WowzaStreamingEngine/lib-native/linux64/transcoder.list **Java HotSpot™ 64-Bit Server VM warning: You have loaded library /usr/local/WowzaStreamingEngine-4.1.2/lib-native/linux64/libmc\_bc\_dec\_avc.so which might have disabled stack guard. The VM will try to fix the stack guard now.** **It’s highly recommended that you fix the library with 'execstack -c ', or link it with ‘-z noexecstack’.** **INFO server comment - LiveStreamTranscoder.init[live/_definst_/live11.stream]: Load transcoder template: file:///usr/local/WowzaStreamingEngine/transcoder/templates/transcode.xml** **libva info: VA-API version 0.34.0** **libva info: va\_getDriverName() returns 0** **libva info: Trying to open /usr/lib/x86\_64-linux-gnu/dri/iHD\_drv\_video.so** **libva info: Found init function \_\_vaDriverInit\_0\_32** **#** **# A fatal error has been detected by the Java Runtime Environment:** **#** **# SIGSEGV (0xb) at pc=0x00007fd266006783, pid=4947, tid=140541794977536** **#** **# JRE version: Java™ SE Runtime Environment (8.0\_45-b14) (build 1.8.0\_45-b14)** **# Java VM: Java HotSpot™ 64-Bit Server VM (25.45-b02 mixed mode linux-amd64 compressed oops)** **# Problematic frame:** **# C [iHD\_drv\_video.so+0x11a783] \_\_vaDriverInit\_0\_31(VADriverContext\*)+0x2b9** **#** **# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try “ulimit -c unlimited” before starting Java again** **#** **# An error report file with more information is saved as:** **# /usr/local/WowzaStreamingEngine-4.1.2/bin/hs\_err\_pid4947.log** # # If you would like to submit a bug report, please visit: # [http://bugreport.java.com/bugreport/crash.jsp](http://bugreport.java.com/bugreport/crash.jsp) # The crash happened outside the Java Virtual Machine in native code. # See problematic frame for where to report the bug. # ./startup.sh: line 51: 4947 Aborted (core dumped) $\_EXECJAVA $WMSTUNE\_OPTS $JMXOPTIONS -Dcom.wowza.wms.runmode="$mode" -Dcom.wowza.wms.native.base=“linux” -Dcom.wowza.wms.AppHome="$WMSAPP\_HOME" -Dcom.wowza.wms.ConfigURL="$WMSCONFIG\_URL" -Dcom.wowza.wms.ConfigHome="$WMSCONFIG\_HOME" -cp $WMSAPP\_HOME/bin/wms-bootstrap.jar com.wowza.wms.bootstrap.Bootstrap start I hava tried “It’s highly recommended that you fix the library with 'execstack -c ', or link it with ‘-z noexecstack’.” and “ulimit -c unlimited”， it doesn’t work for me.anything i can do. Thanks! ---
**Author:** ![sal\_jefferson](https://avatars.discourse-cdn.com/v4/letter/s/6de8d8/32.png) [@sal\_jefferson](https://community.wowza.com/u/sal_jefferson)\ **Post date:** [June 25, 2015, 7:48am UTC](https://community.wowza.com/t/wowza-crashed-when-start-to-transcode-everytime/45284/2 "2015-06-25T07:48:57Z")
Hi. You might try: ```auto execstack -c /usr/local/WowzaStreamingEngine-4.1.2/lib-native/linux64/libmc_bc_dec_avc.so ``` Regards, Salvadore ---
**Author:** ![Daren\_Johnson](https://avatars.discourse-cdn.com/v4/letter/d/ee59a6/32.png) [@Daren\_Johnson](https://community.wowza.com/u/Daren_Johnson)\ **Post date:** [July 6, 2015, 11:57pm UTC](https://community.wowza.com/t/wowza-crashed-when-start-to-transcode-everytime/45284/3 "2015-07-06T23:57:17Z")
Hi, If this was a new or updated installation then it’s possible the libraries being used required more up-to-date Intel Media drivers to support the QuickSync accelerated transcoding. Daren ---
**Author:** ![zheng\_leo](https://avatars.discourse-cdn.com/v4/letter/z/c67d28/32.png) [@zheng\_leo](https://community.wowza.com/u/zheng_leo)\ **Post date:** [July 6, 2015, 8:12pm UTC](https://community.wowza.com/t/wowza-crashed-when-start-to-transcode-everytime/45284/4 "2015-07-06T20:12:24Z")
Hi. thanks for you kindness！ i have figure it out with reinstall the intel-media driver, though i still confused! ---
**Author:** ![zheng\_leo](https://avatars.discourse-cdn.com/v4/letter/z/c67d28/32.png) [@zheng\_leo](https://community.wowza.com/u/zheng_leo)\ **Post date:** [July 25, 2015, 10:53pm UTC](https://community.wowza.com/t/wowza-crashed-when-start-to-transcode-everytime/45284/5 "2015-07-25T22:53:46Z")
Hi, thanks for the reply! I’m using the Intel Media drivers as mentioned in the QuickSync Configure Guide, “wget [https://www.wowza.com/downloads/WowzaTranscoder-4-Components/intel-quicksync-linux/intel-linux-media\_sles\_16.3.1.18283\_64bit.tar.gz](https://www.wowza.com/downloads/WowzaTranscoder-4-Components/intel-quicksync-linux/intel-linux-media_sles_16.3.1.18283_64bit.tar.gz)”. is there any update on the Intel Media Drivers?