kernel-packages team mailing list archive

[Bill Filler <1202887@xxxxxxxxxxxxxxxxxx>]

** No longer affects: touch-preview-images

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-maguro in Ubuntu.
https://bugs.launchpad.net/bugs/1202887

Title:
  'binder: RLIMIT_NICE not set' when using binder from the ubuntu side

Status in “linux-grouper” package in Ubuntu:
  New
Status in “linux-maguro” package in Ubuntu:
  New
Status in “linux-mako” package in Ubuntu:
  New
Status in “linux-manta” package in Ubuntu:
  New

Bug description:
  http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-
  saucy.git;a=blob;f=drivers/staging/android/binder.c;hb=refs/heads/mako#l516

  """
  static void binder_set_nice(long nice)
  {
  	long min_nice;
  	if (can_nice(current, nice)) {
  		set_user_nice(current, nice);
  		return;
  	}
  	min_nice = 20 - current->signal->rlim[RLIMIT_NICE].rlim_cur;
  	binder_debug(BINDER_DEBUG_PRIORITY_CAP,
  		     "binder: %d: nice value %ld not allowed use "
  		     "%ld instead\n", current->pid, nice, min_nice);
  	set_user_nice(current, min_nice);
  	if (min_nice < 20)
  		return;
  	binder_user_error("binder: %d RLIMIT_NICE not set\n", current->pid);
  }
  """

  That happens because binder expects it to be able to change the nice
  value for the specific process, and fails when the process is started
  by Ubuntu, which has a default nice value of 0 (rlimit nice is set to
  40 40 by default in android, via android's init).

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-grouper/+bug/1202887/+subscriptions