Public bug reported:
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).
** Affects: touch-preview-images
Importance: Undecided
Status: New
** Affects: linux-grouper (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-maguro (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-mako (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-manta (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux-grouper (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux-manta (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux-maguro (Ubuntu)
Importance: Undecided
Status: New
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Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1202887
Title:
'binder: RLIMIT_NICE not set' when using binder from the ubuntu side
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