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* [ANNOUNCE] v4.14.28-rt23
@ 2018-03-20 23:26 Sebastian Andrzej Siewior
  0 siblings, 0 replies; only message in thread
From: Sebastian Andrzej Siewior @ 2018-03-20 23:26 UTC (permalink / raw)
  To: Thomas Gleixner; +Cc: LKML, linux-rt-users, Steven Rostedt

Dear RT folks!

I'm pleased to announce the v4.14.28-rt23 patch set. 

Changes since v4.14.28-rt22:

  - The RCU boosting code could enable interrupts too early which could
    lead to a deadlock. Reported by Roosen Henri, fixed by Boqun Feng.

Known issues
     - A warning triggered in "rcu_note_context_switch" originated from
       SyS_timer_gettime(). The issue was always there, it is now
       visible. Reported by Grygorii Strashko and Daniel Wagner.

The delta patch against v4.14.28-rt22 is appended below and can be found here:

You can get this release via the git tree at:

    git:// v4.14.28-rt23

The RT patch against v4.14.28 can be found here:

The split quilt queue is available at:


diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c
index 838c8a6f662c..0cb716ba3be0 100644
--- a/kernel/locking/rtmutex.c
+++ b/kernel/locking/rtmutex.c
@@ -2206,11 +2206,12 @@ void __sched rt_mutex_futex_unlock(struct rt_mutex *lock)
+	unsigned long flags;
 	bool postunlock;
-	raw_spin_lock_irq(&lock->wait_lock);
+	raw_spin_lock_irqsave(&lock->wait_lock, flags);
 	postunlock = __rt_mutex_futex_unlock(lock, &wake_q, &wake_sleeper_q);
-	raw_spin_unlock_irq(&lock->wait_lock);
+	raw_spin_unlock_irqrestore(&lock->wait_lock, flags);
 	if (postunlock)
 		rt_mutex_postunlock(&wake_q, &wake_sleeper_q);
diff --git a/localversion-rt b/localversion-rt
index c29508d21914..9a218ca23053 100644
--- a/localversion-rt
+++ b/localversion-rt
@@ -1 +1 @@

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