1. 24 Mar, 2017 8 commits
  2. 23 Mar, 2017 3 commits
    • Cedric Roux's avatar
      fix issue 227 - UE IP settings disrupts realtime · cff91499
      Cedric Roux authored
      see #227
      
      When the UE connects to the eNodeB and receives its IP address from the
      network, it calls system() to set it in the linux kernel world. This call
      is not done in a realtime thread, but in the NAS, which uses its own thread,
      independent of the realtime processing.
      
      In some situations this totally disrupts realtime processing.
      
      It is difficult to know precisely why that happens, but it seems that calling
      fork(), as system() does, in a multi-threaded program is not a good idea. (So
      say several people on the internet.) It is not clear why the softmodem is
      impacted, but it seems that fork() is really what triggers the disruption.
      Several tests lead to that conclusion.
      
      To fix the problem, we create a child background process very early in main()
      (before anything else basically). Then instead of calling system(), the main
      process sends the string to the background process. The background process
      gets the string, passes it to system() and reports the success/failure back
      to the main process.
      
      This solution involves a lot of system calls, but calling system() in the
      first place is not cheap either. As long as no realtime thread uses this
      mechanism, things should be fine. Time will tell.
      cff91499
    • Cedric Roux's avatar
      minor fixes · 89f747a2
      Cedric Roux authored
      89f747a2
    • Cedric Roux's avatar
      fixes for IF5 · 238b22e5
      Cedric Roux authored
      This work was done by Bruno Mongazon.
      238b22e5
  3. 15 Mar, 2017 1 commit
  4. 13 Mar, 2017 2 commits
  5. 08 Mar, 2017 4 commits
  6. 03 Mar, 2017 1 commit
  7. 22 Feb, 2017 1 commit
  8. 21 Feb, 2017 1 commit
  9. 20 Feb, 2017 3 commits
  10. 17 Feb, 2017 5 commits
  11. 16 Feb, 2017 1 commit
  12. 15 Feb, 2017 1 commit
  13. 14 Feb, 2017 2 commits
    • Thomas Laurent's avatar
      remove debug traces · 23c75476
      Thomas Laurent authored
      23c75476
    • Cedric Roux's avatar
      cleanup lte-softmodem.c · f52a42ed
      Cedric Roux authored
      For whatever reason, lte-softmodem.c was totally messed up...
      
      We took the version from the branch develop and added
      abstraction_flag, which is needed in openair2/LAYER2/MAC/main.c
      (this is not clean, previous commit added a comment for this).
      This has to be cleaned at some point.
      f52a42ed
  14. 13 Feb, 2017 3 commits
  15. 10 Feb, 2017 1 commit
  16. 09 Feb, 2017 3 commits