am 0a42b811: base: process: Abort setting the process group if one of the threads fails to switch

Merge commit '0a42b811aea490a9a605b75f0320101f6eafd283' into eclair-mr2

* commit '0a42b811aea490a9a605b75f0320101f6eafd283':
  base: process: Abort setting the process group if one of the threads fails to switch