1. 08 Aug, 2018 1 commit
    • Breno Leitao's avatar
      selftests/powerpc: Kill child processes on SIGINT · 7c27a26e
      Breno Leitao authored
      There are some powerpc selftests, as tm/tm-unavailable, that run for a long
      period (>120 seconds), and if it is interrupted, as pressing CRTL-C
      (SIGINT), the foreground process (harness) dies but the child process and
      threads continue to execute (with PPID = 1 now) in background.
      
      In this case, you'd think the whole test exited, but there are remaining
      threads and processes being executed in background. Sometimes these
      zombies processes are doing annoying things, as consuming the whole CPU or
      dumping things to STDOUT.
      
      This patch fixes this problem by attaching an empty signal handler to
      SIGINT in the harness process. This handler will interrupt (EINTR) the
      parent process waitpid() call, letting the code to follow through the
      normal flow, which will kill all the processes in the child process group.
      
      This patch also fixes a typo.
      Signed-off-by: default avatarBreno Leitao <leitao@debian.org>
      Signed-off-by: default avatarGustavo Romero <gromero@linux.vnet.ibm.com>
      Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
      7c27a26e
  2. 07 Aug, 2018 39 commits