Re: [BUG] [ tip/sched/core ] System unresponsive after booting

From: Daniel Lezcano
Date: Thu Jan 16 2014 - 10:28:19 EST

On 01/16/2014 03:25 PM, Peter Zijlstra wrote:
On Thu, Jan 16, 2014 at 03:20:20PM +0100, Daniel Lezcano wrote:
Already tested. The last commits do not change the issue described above.

Bummer, ok, what version of Ubuntu/rsyslogd are you using? I have a
laptop around that should have some recent ubuntu on it, let me go find

Removing the lines below fix the issue.

These changes were introduced by the commit d50dde5a10f305253cbc3855307f608f8a3c5f73.

I don't get the connection between what is supposed to do the patch as described in the commit log and these four lines added.

diff --git a/arch/arm/include/asm/unistd.h b/arch/arm/include/asm/unistd.h
index 141baa3..acabef1 100644
--- a/arch/arm/include/asm/unistd.h
+++ b/arch/arm/include/asm/unistd.h
@@ -15,7 +15,7 @@

#include <uapi/asm/unistd.h>
dlezcano@mai:~/Work/src/cpuidle-next (sched/idle-balance)$ git diff
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 93a2836..673edff 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -3295,10 +3295,6 @@ recheck:
* Allow unprivileged RT tasks to decrease priority:
if (user && !capable(CAP_SYS_NICE)) {
- if (fair_policy(policy)) {
- if (!can_nice(p, attr->sched_nice))
- return -EPERM;
- }

if (rt_policy(policy)) {
unsigned long rlim_rtprio =

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