ipc_pingpong: start receiving thread immediately
ipc_pingpong: start receiving thread immediately

Rationale: When using `msg_send_receive()` the receiving thread needs to
be already in receiving mode.

bartfaizoltan/RIOT,smlng/RIOT,adrianghc/RIOT,DipSwitch/RIOT,attdona/RIOT,BytesGalore/PetersRIOT,marcosalm/RIOT,sgso/RIOT,katezilla/RIOT,phiros/RIOT,gbarnett/RIOT,tdautc19841202/RIOT,AnonMall/RIOT,rajma996/RIOT,gautric/RIOT,emmanuelsearch/RIOT,haoyangyu/RIOT,aeneby/RIOT,immesys/RiSyn,OTAkeys/RIOT,centurysys/RIOT,RIOT-OS/RIOT,dkm/RIOT,luciotorre/RIOT,zhuoshuguo/RIOT,alignan/RIOT,jhollister/RIOT,locicontrols/RIOT,thomaseichinger/RIOT,benoit-canet/RIOT,AnonMall/RIOT,msolters/RIOT,gebart/RIOT,fnack/RIOT,mfrey/RIOT,Ell-i/RIOT,Yonezawa-T2/RIOT,openkosmosorg/RIOT,altairpearl/RIOT,automote/RIOT,OlegHahm/RIOT,kb2ma/RIOT,gautric/RIOT,Osblouf/RIOT,fnack/RIOT,rousselk/RIOT,sumanpanchal/RIOT,LudwigOrtmann/RIOT,locicontrols/RIOT,stevenj/RIOT,thomaseichinger/RIOT,EmuxEvans/RIOT,patkan/RIOT,LudwigKnuepfer/RIOT,kerneltask/RIOT,FrancescoErmini/RIOT,tdautc19841202/RIOT,daniel-k/RIOT,asanka-code/RIOT,x3ro/RIOT,wentaoshang/RIOT,syin2/RIOT,DipSwitch/RIOT,RubikonAlpha/RIOT,haoyangyu/RIOT,daniel-k/RIOT,herrfz/RIOT-old,basilfx/RIOT,OTAkeys/RIOT,malosek/RIOT,kYc0o/RIOT,yogo1212/RIOT,ximus/RIOT,kYc0o/RIOT,hamilton-mote/RIOT-OS,smlng/RIOT,abkam07/RIOT,arvindpdmn/RIOT,changbiao/RIOT,Josar/RIOT,ros2/ros2_embedded_riot,jbeyerstedt/RIOT-OTA-update,Darredevil/RIOT,rfswarm/RIOT,MonsterCode8000/RIOT,watr-li/RIOT,neumodisch/RIOT,ntrtrung/RIOT,abkam07/RIOT,abp719/RIOT,lebrush/RIOT,locicontrols/RIOT,PSHIVANI/Riot-Code,abkam07/RIOT,rousselk/RIOT,miri64/RIOT,kerneltask/RIOT,msolters/RIOT,patkan/RIOT,wentaoshang/RIOT,fnack/RIOT,latsku/RIOT,d00616/RIOT,ant9000/RIOT,BytesGalore/PetersRIOT,kb2ma/RIOT,kushalsingh007/RIOT,RBartz/RIOT,EmuxEvans/RIOT,marcosalm/RIOT,alex1818/RIOT,RubikonAlpha/RIOT,lebrush/RIOT,Hyungsin/RIOT-OS,phiros/RIOT,adrianghc/RIOT,rfswarm/RIOT,gautric/RIOT,brettswann/RIOT,latsku/RIOT,watr-li/RIOT,ros2/ros2_embedded_riot,dkm/RIOT,A-Paul/RIOT,spium/IoT-RIOT,Hyungsin/RIOT-OS,FrancescoErmini/RIOT,Josar/RIOT,katezilla/RIOT,phiros/RIOT,herrfz/RIOT-old,dailab/RIOT,automote/RIOT,kaspar030/RIOT,kaspar030/RIOT,kaleb-himes/RIOT,thiagohd/RIOT,alex1818/RIOT,avmelnikoff/RIOT,locicontrols/RIOT,herrfz/RIOT,dhruvvyas90/RIOT,abp719/RIOT,dailab/RIOT,jbeyerstedt/RIOT-OTA-update,malosek/RIOT,attdona/RIOT,syin2/RIOT,jremmert-phytec-iot/RIOT,changbiao/RIOT,PSHIVANI/Riot-Code,ros2/ros2_embedded_riot,beurdouche/RIOT,TobiasFredersdorf/RIOT,toonst/RIOT,attdona/RIOT,alignan/RIOT,robixnai/RIOT,chris-wood/RIOT,Darredevil/RIOT,cladmi/RIOT,ntrtrung/RIOT,TobiasFredersdorf/RIOT,DipSwitch/RIOT,emmanuelsearch/RIOT,Yonezawa-T2/RIOT,locicontrols/RIOT,rfswarm2/RIOT,neumodisch/RIOT,Josar/RIOT,yogo1212/RIOT,altairpearl/RIOT,MohmadAyman/RIOT,Lexandro92/RIOT-CoAP,koenning/RIOT,lazytech-org/RIOT,adrianghc/RIOT,LudwigOrtmann/RIOT,smlng/RIOT,koenning/RIOT,A-Paul/RIOT,haoyangyu/RIOT,zhuoshuguo/RIOT,TobiasFredersdorf/RIOT,A-Paul/RIOT,gautric/RIOT,sumanpanchal/RIOT,Lotterleben/RIOT,basilfx/RIOT,chris-wood/RIOT,benoit-canet/RIOT,malosek/RIOT,FrancescoErmini/RIOT,josephnoir/RIOT,wentaoshang/RIOT,kerneltask/RIOT,Osblouf/RIOT,rakendrathapa/RIOT,abp719/RIOT,syin2/RIOT,BytesGalore/PetersRIOT,automote/RIOT,PSHIVANI/Riot-Code,MohmadAyman/RIOT,abkam07/RIOT,josephnoir/RIOT,adjih/RIOT,neiljay/RIOT,chris-wood/RIOT,Yonezawa-T2/RIOT,mfrey/RIOT,Osblouf/RIOT,Lotterleben/RIOT,dhruvvyas90/RIOT,rousselk/RIOT,marcosalm/RIOT,changbiao/RIOT,kaleb-himes/RIOT,LudwigKnuepfer/RIOT,patkan/RIOT,Lotterleben/RIOT,fnack/RIOT,roberthartung/RIOT,kYc0o/RIOT,stevenj/RIOT,sumanpanchal/RIOT,rousselk/RIOT,lebrush/RIOT,PSHIVANI/Riot-Code,abp719/RIOT,dkm/RIOT,sgso/RIOT,roberthartung/RIOT,luciotorre/RIOT,cladmi/RIOT,neumodisch/RIOT,avmelnikoff/RIOT,jferreir/RIOT,kerneltask/RIOT,mziegert/RIOT,x3ro/RIOT,kushalsingh007/RIOT,nsol-nmsu/RIOT,automote/RIOT,binarylemon/RIOT,immesys/RiSyn,RubikonAlpha/RIOT,shady33/RIOT,josephnoir/RIOT,A-Paul/RIOT,robixnai/RIOT,MonsterCode8000/RIOT,thomaseichinger/RIOT,kaspar030/RIOT,daniel-k/RIOT,patkan/RIOT,jfischer-phytec-iot/RIOT,EmuxEvans/RIOT,nsol-nmsu/RIOT,Hyungsin/RIOT-OS,jfischer-phytec-iot/RIOT,Lotterleben/RIOT,adjih/RIOT,binarylemon/RIOT,changbiao/RIOT,watr-li/RIOT,benoit-canet/RIOT,zhuoshuguo/RIOT,rfuentess/RIOT,Yonezawa-T2/RIOT,khhhh/RIOT,mtausig/RIOT,kbumsik/RIOT,ks156/RIOT,BytesGalore/PetersRIOT,A-Paul/RIOT,jasonatran/RIOT,jhollister/RIOT,sumanpanchal/RIOT,arvindpdmn/RIOT,haoyangyu/RIOT,cladmi/RIOT,kbumsik/RIOT,rakendrathapa/RIOT,rfswarm2/RIOT,adjih/RIOT,l3nko/RIOT,MonsterCode8000/RIOT,benoit-canet/RIOT,lazytech-org/RIOT,smlng/RIOT,katezilla/RIOT,haoyangyu/RIOT,attdona/RIOT,kerneltask/RIOT,EmuxEvans/RIOT,rajma996/RIOT,lazytech-org/RIOT,miri64/RIOT,1blankz7/RIOT,RBartz/RIOT,bartfaizoltan/RIOT,aeneby/RIOT,bartfaizoltan/RIOT,kbumsik/RIOT,dhruvvyas90/RIOT,spium/IoT-RIOT,alignan/RIOT,1blankz7/RIOT,mziegert/RIOT,spium/IoT-RIOT,katezilla/RIOT,authmillenon/RIOT,adrianghc/RIOT,gebart/RIOT,adrianghc/RIOT,latsku/RIOT,openkosmosorg/RIOT,rajma996/RIOT,rousselk/RIOT,herrfz/RIOT-old,rfuentess/RIOT,miri64/RIOT,brettswann/RIOT,d00616/RIOT,malosek/RIOT,khhhh/RIOT,spium/IoT-RIOT,jferreir/RIOT,koenning/RIOT,RBartz/RIOT,bartfaizoltan/RIOT,authmillenon/RIOT,zhuoshuguo/RIOT,RBartz/RIOT,gbarnett/RIOT,syin2/RIOT,MohmadAyman/RIOT,JensErdmann/RIOT,rousselk/RIOT,centurysys/RIOT,thiagohd/RIOT,avmelnikoff/RIOT,aeneby/RIOT,kaleb-himes/RIOT,brettswann/RIOT,adjih/RIOT,roberthartung/RIOT,jhollister/RIOT,ks156/RIOT,lazytech-org/RIOT,zhuoshuguo/RIOT,josephnoir/RIOT,lazytech-org/RIOT,ntrtrung/RIOT,plushvoxel/RIOT,Lexandro92/RIOT-CoAP,tfar/RIOT,kb2ma/RIOT,immesys/RiSyn,ThanhVic/RIOT,1blankz7/RIOT,herrfz/RIOT-old,x3ro/RIOT,backenklee/RIOT,TobiasFredersdorf/RIOT,jbeyerstedt/RIOT-OTA-update,OlegHahm/RIOT,OlegHahm/RIOT,automote/RIOT,ant9000/RIOT,thiagohd/RIOT,TobiasFredersdorf/RIOT,AnonMall/RIOT,rfuentess/RIOT,msolters/RIOT,patkan/RIOT,rajma996/RIOT,sumanpanchal/RIOT,benoit-canet/RIOT,gbarnett/RIOT,RIOT-OS/RIOT,jferreir/RIOT,RubikonAlpha/RIOT,latsku/RIOT,fnack/RIOT,asanka-code/RIOT,FrancescoErmini/RIOT,biboc/RIOT,msolters/RIOT,attdona/RIOT,Lexandro92/RIOT-CoAP,biboc/RIOT,jremmert-phytec-iot/RIOT,khhhh/RIOT,sumanpanchal/RIOT,ximus/RIOT,arvindpdmn/RIOT,ThanhVic/RIOT,yogo1212/RIOT,jfischer-phytec-iot/RIOT,JensErdmann/RIOT,ant9000/RIOT,kushalsingh007/RIOT,katezilla/RIOT,stevenj/RIOT,spium/IoT-RIOT,haoyangyu/RIOT,FrancescoErmini/RIOT,l3nko/RIOT,dhruvvyas90/RIOT,watr-li/RIOT,latsku/RIOT,gebart/RIOT,ks156/RIOT,herrfz/RIOT,sgso/RIOT,sgso/RIOT,smlng/RIOT,kushalsingh007/RIOT,nsol-nmsu/RIOT,mtausig/RIOT,cladmi/RIOT,basilfx/RIOT,shady33/RIOT,altairpearl/RIOT,zhuoshuguo/RIOT,dailab/RIOT,alex1818/RIOT,jasonatran/RIOT,kYc0o/RIOT,BytesGalore/PetersRIOT,chris-wood/RIOT,Osblouf/RIOT,locicontrols/RIOT,rajma996/RIOT,toonst/RIOT,plushvoxel/RIOT,mziegert/RIOT,authmillenon/RIOT,emmanuelsearch/RIOT,changbiao/RIOT,watr-li/RIOT,koenning/RIOT,Osblouf/RIOT,d00616/RIOT,beurdouche/RIOT,herrfz/RIOT,marcosalm/RIOT,authmillenon/RIOT,asanka-code/RIOT,BytesGalore/RIOT,rajma996/RIOT,dkm/RIOT,kushalsingh007/RIOT,mziegert/RIOT,luciotorre/RIOT,shady33/RIOT,openkosmosorg/RIOT,1blankz7/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,JensErdmann/RIOT,chris-wood/RIOT,fnack/RIOT,ks156/RIOT,plushvoxel/RIOT,mfrey/RIOT,rfswarm2/RIOT,ros2/ros2_embedded_riot,l3nko/RIOT,alex1818/RIOT,kushalsingh007/RIOT,rfswarm/RIOT,phiros/RIOT,brettswann/RIOT,kbumsik/RIOT,Lotterleben/RIOT,Darredevil/RIOT,DipSwitch/RIOT,thomaseichinger/RIOT,jremmert-phytec-iot/RIOT,ximus/RIOT,Hyungsin/RIOT-OS,RIOT-OS/RIOT,kaspar030/RIOT,OlegHahm/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,shady33/RIOT,herrfz/RIOT-old,rfswarm/RIOT,arvindpdmn/RIOT,automote/RIOT,d00616/RIOT,beurdouche/RIOT,rakendrathapa/RIOT,rfswarm2/RIOT,tdautc19841202/RIOT,plushvoxel/RIOT,immesys/RiSyn,daniel-k/RIOT,jasonatran/RIOT,thomaseichinger/RIOT,mfrey/RIOT,luciotorre/RIOT,toonst/RIOT,BytesGalore/RIOT,Lexandro92/RIOT-CoAP,binarylemon/RIOT,neumodisch/RIOT,ks156/RIOT,biboc/RIOT,neiljay/RIOT,robixnai/RIOT,BytesGalore/PetersRIOT,marcosalm/RIOT,mtausig/RIOT,RIOT-OS/RIOT,Lexandro92/RIOT-CoAP,LudwigKnuepfer/RIOT,hamilton-mote/RIOT-OS,Yonezawa-T2/RIOT,lebrush/RIOT,jremmert-phytec-iot/RIOT,neiljay/RIOT,ros2/ros2_embedded_riot,neumodisch/RIOT,changbiao/RIOT,MarkXYang/RIOT,ximus/RIOT,Ell-i/RIOT,dailab/RIOT,sgso/RIOT,gebart/RIOT,kb2ma/RIOT,backenklee/RIOT,herrfz/RIOT,altairpearl/RIOT,jhollister/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,BytesGalore/PetersRIOT,alignan/RIOT,asanka-code/RIOT,abkam07/RIOT,dhruvvyas90/RIOT,jferreir/RIOT,miri64/RIOT,phiros/RIOT,daniel-k/RIOT,jbeyerstedt/RIOT-OTA-update,BytesGalore/RIOT,l3nko/RIOT,dailab/RIOT,centurysys/RIOT,MohmadAyman/RIOT,rfuentess/RIOT,Lotterleben/RIOT,khhhh/RIOT,biboc/RIOT,robixnai/RIOT,gautric/RIOT,herrfz/RIOT,rfswarm/RIOT,Lotterleben/RIOT,mtausig/RIOT,x3ro/RIOT,centurysys/RIOT,MarkXYang/RIOT,binarylemon/RIOT,Hyungsin/RIOT-OS,LudwigOrtmann/RIOT,OTAkeys/RIOT,arvindpdmn/RIOT,thiagohd/RIOT,ThanhVic/RIOT,marcosalm/RIOT,mziegert/RIOT,brettswann/RIOT,d00616/RIOT,khhhh/RIOT,AnonMall/RIOT,kYc0o/RIOT,ximus/RIOT,ros2/ros2_embedded_riot,benoit-canet/RIOT,gbarnett/RIOT,jasonatran/RIOT,alex1818/RIOT,LudwigKnuepfer/RIOT,RubikonAlpha/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,lebrush/RIOT,lebrush/RIOT,DipSwitch/RIOT,gbarnett/RIOT,kaleb-himes/RIOT,spium/IoT-RIOT,ant9000/RIOT,rfswarm/RIOT,luciotorre/RIOT,neumodisch/RIOT,tdautc19841202/RIOT,basilfx/RIOT,chris-wood/RIOT,msolters/RIOT,latsku/RIOT,PSHIVANI/Riot-Code,rakendrathapa/RIOT,roberthartung/RIOT,Osblouf/RIOT,shady33/RIOT,1blankz7/RIOT,jremmert-phytec-iot/RIOT,thiagohd/RIOT,immesys/RiSyn,yogo1212/RIOT,LudwigOrtmann/RIOT,openkosmosorg/RIOT,MarkXYang/RIOT,bartfaizoltan/RIOT,ThanhVic/RIOT,RBartz/RIOT,ros2/ros2_embedded_riot,RIOT-OS/RIOT,Josar/RIOT,wentaoshang/RIOT,MonsterCode8000/RIOT,Ell-i/RIOT,Ell-i/RIOT,binarylemon/RIOT,kbumsik/RIOT,JensErdmann/RIOT,jbeyerstedt/RIOT-OTA-update,syin2/RIOT,MonsterCode8000/RIOT,kb2ma/RIOT,d00616/RIOT,miri64/RIOT,jfischer-phytec-iot/RIOT,MohmadAyman/RIOT,AnonMall/RIOT,authmillenon/RIOT,herrfz/RIOT,aeneby/RIOT,cladmi/RIOT,Darredevil/RIOT,JensErdmann/RIOT,DipSwitch/RIOT,kaspar030/RIOT,nsol-nmsu/RIOT,arvindpdmn/RIOT,bartfaizoltan/RIOT,MarkXYang/RIOT,plushvoxel/RIOT,tdautc19841202/RIOT,OTAkeys/RIOT,authmillenon/RIOT,jferreir/RIOT,stevenj/RIOT,LudwigOrtmann/RIOT,thiagohd/RIOT,binarylemon/RIOT,MohmadAyman/RIOT,centurysys/RIOT,asanka-code/RIOT,yogo1212/RIOT,LudwigKnuepfer/RIOT,khhhh/RIOT,roberthartung/RIOT,emmanuelsearch/RIOT,LudwigOrtmann/RIOT,OTAkeys/RIOT,nsol-nmsu/RIOT,beurdouche/RIOT,alignan/RIOT,ant9000/RIOT,emmanuelsearch/RIOT,wentaoshang/RIOT,FrancescoErmini/RIOT,hamilton-mote/RIOT-OS,tfar/RIOT,shady33/RIOT,EmuxEvans/RIOT,luciotorre/RIOT,EmuxEvans/RIOT,hamilton-mote/RIOT-OS,rakendrathapa/RIOT,daniel-k/RIOT,tfar/RIOT,tdautc19841202/RIOT,rfuentess/RIOT,openkosmosorg/RIOT,Josar/RIOT,ThanhVic/RIOT,stevenj/RIOT,watr-li/RIOT,ntrtrung/RIOT,josephnoir/RIOT,jhollister/RIOT,BytesGalore/RIOT,jfischer-phytec-iot/RIOT,MarkXYang/RIOT,x3ro/RIOT,ntrtrung/RIOT,Darredevil/RIOT,altairpearl/RIOT,centurysys/RIOT,tfar/RIOT,attdona/RIOT,adjih/RIOT,wentaoshang/RIOT,basilfx/RIOT,jhollister/RIOT,stevenj/RIOT,gbarnett/RIOT,neiljay/RIOT,emmanuelsearch/RIOT,rfswarm2/RIOT,patkan/RIOT,locicontrols/RIOT,avmelnikoff/RIOT,asanka-code/RIOT,avmelnikoff/RIOT,dhruvvyas90/RIOT,l3nko/RIOT,Ell-i/RIOT,alex1818/RIOT,brettswann/RIOT,dkm/RIOT,openkosmosorg/RIOT,RubikonAlpha/RIOT,ntrtrung/RIOT,RBartz/RIOT,phiros/RIOT,PSHIVANI/Riot-Code,sgso/RIOT,MonsterCode8000/RIOT,JensErdmann/RIOT,tfar/RIOT,mtausig/RIOT,abkam07/RIOT,koenning/RIOT,mfrey/RIOT,koenning/RIOT,backenklee/RIOT,backenklee/RIOT,ximus/RIOT,l3nko/RIOT,BytesGalore/RIOT,hamilton-mote/RIOT-OS,foss-for-synopsys-dwc-arc-processors/RIOT,yogo1212/RIOT,gebart/RIOT,backenklee/RIOT,Darredevil/RIOT,Lexandro92/RIOT-CoAP,OlegHahm/RIOT,biboc/RIOT,abp719/RIOT,rakendrathapa/RIOT,jremmert-phytec-iot/RIOT,immesys/RiSyn,malosek/RIOT,msolters/RIOT,altairpearl/RIOT,robixnai/RIOT,1blankz7/RIOT,toonst/RIOT,aeneby/RIOT,kaleb-himes/RIOT,jferreir/RIOT,robixnai/RIOT,neiljay/RIOT,malosek/RIOT,MarkXYang/RIOT,rfswarm2/RIOT,jasonatran/RIOT,ThanhVic/RIOT,beurdouche/RIOT,AnonMall/RIOT,abp719/RIOT,mziegert/RIOT,Yonezawa-T2/RIOT,toonst/RIOT