From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: LKML <linux-kernel@vger.kernel.org>,
linux-rt-users <linux-rt-users@vger.kernel.org>,
Steven Rostedt <rostedt@goodmis.org>
Subject: [ANNOUNCE] v4.19.15-rt12
Date: Mon, 14 Jan 2019 16:31:10 +0100 [thread overview]
Message-ID: <20190114153110.adzcpnmlegvivqkc@linutronix.de> (raw)
Dear RT folks!
I'm pleased to announce the v4.19.15-rt12 patch set.
Changes since v4.19.15-rt11:
- The read lock of a rwlock did not preserve the task state. This led
to a wrong state while using ptrace. Reported by Joe Korty.
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 v4.19.15-rt11 is appended below and can be found here:
https://cdn.kernel.org/pub/linux/kernel/projects/rt/4.19/incr/patch-4.19.15-rt11-rt12.patch.xz
You can get this release via the git tree at:
git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git v4.19.15-rt12
The RT patch against v4.19.15 can be found here:
https://cdn.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patch-4.19.15-rt12.patch.xz
The split quilt queue is available at:
https://cdn.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.15-rt12.tar.xz
Sebastian
diff --git a/kernel/locking/rwlock-rt.c b/kernel/locking/rwlock-rt.c
index f2e155b2c4a8b..c3b91205161cc 100644
--- a/kernel/locking/rwlock-rt.c
+++ b/kernel/locking/rwlock-rt.c
@@ -128,7 +128,7 @@ void __sched __read_rt_lock(struct rt_rw_lock *lock)
* That would put Reader1 behind the writer waiting on
* Reader2 to call read_unlock() which might be unbound.
*/
- rt_mutex_init_waiter(&waiter, false);
+ rt_mutex_init_waiter(&waiter, true);
rt_spin_lock_slowlock_locked(m, &waiter, flags);
/*
* The slowlock() above is guaranteed to return with the rtmutex is
diff --git a/localversion-rt b/localversion-rt
index 05c35cb580779..6e44e540b927b 100644
--- a/localversion-rt
+++ b/localversion-rt
@@ -1 +1 @@
--rt11
+-rt12
reply other threads:[~2019-01-14 15:31 UTC|newest]
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