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[wasutton3 <1901746@xxxxxxxxxxxxxxxxxx>]

There appears to be a set of patches coming down the pipe that will
resolve this issue.

Please see this PR for details:

https://github.com/gnuradio/gnuradio/pull/2739

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https://bugs.launchpad.net/bugs/1901746

Title:
  gnuradio crashes with CtrlPort Performance Monitor Enabled

Status in gnuradio package in Ubuntu:
  Confirmed

Bug description:
  GnuRadio crashes with the error message while using the following .grc
  file https://paste.ubuntu.com/p/XMJgk462px/

  `ControlPort Monitor running.
  python3: ../gnuradio-runtime/lib/controlport/rpcmanager.cc:38: static rpcserver_booter_base* rpcmanager::get(): Assertion `booter_registered || aggregator_registered' failed.`

  Steps to reproduce:

  1) Install gnuradio
  2) Download this file as file.grc
  3) Open file.grc with gnuradio-companion
  4) Execute flowgraph. 
  5) Observe bug. 

  The issue seems to be reported here as well. https://github.com/gnuradio/gnuradio/issues/3673
  --- 
  ProblemType: Bug
  ApportVersion: 2.20.11-0ubuntu27.10
  Architecture: amd64
  CasperMD5CheckResult: skip
  DistroRelease: Linux Mint 20
  InstallationDate: Installed on 2019-12-31 (301 days ago)
  InstallationMedia: Linux Mint 19.3 "Tricia" - Release amd64 20191213
  Package: gnuradio 3.8.1.0~rc1-2build2 [origin: Ubuntu]
  PackageArchitecture: amd64
  ProcVersionSignature: Ubuntu 5.3.0-24.26~18.04.2-generic 5.3.10
  Tags: ulyana third-party-packages
  Uname: Linux 5.3.0-24-generic x86_64
  UnreportableReason: This is not an official Linux package. Please remove any third party package and try again.
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dialout dip libvirt lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  mtime.conffile..etc.gnuradio.conf.d.grc.conf: 2020-02-19T10:27:42.529223

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