* [ANNOUNCE] 3.12.0-rt2
@ 2013-11-16 19:46 Sebastian Andrzej Siewior
2013-11-16 21:26 ` Pavel Vasilyev
` (3 more replies)
0 siblings, 4 replies; 13+ messages in thread
From: Sebastian Andrzej Siewior @ 2013-11-16 19:46 UTC (permalink / raw)
To: linux-rt-users; +Cc: LKML, Thomas Gleixner, rostedt, John Kacur
Dear RT folks!
I'm pleased to announce the v3.12.0-rt2 patch set.
Changes since v3.12.0-rt1
- fix for iwlwifi which tried to take a sleeping in irq context. Patch
has been available & disabled in the queue and is now enabled after Clark
recently reported that it works.
- tried to fix AT91's "already-free IRQ" and highres problem. Michael
Langfinge reported it initially and Sami Pietikäinen sent a patch for
the "already-free IRQ" problem. Based on another patch I looked at the
highres patch and tried to fix it. As I don't have the hardware, some
feedback would be nice.
- a fix for cpu down on !RT. Patch by Tiejun Chen.
- Mike Galbraith and Matt Cowell reported a dead lock with CONFIG_NO_HZ_FULL.
To fix this trylock deadlock, the sleeping lock is now taken with irqs off.
I would be interrested if this change causes any noticable latencys
for anyone.
Known issues:
- bcache is disabled.
- an ancient race (since we got sleeping spinlocks) where the
TASK_TRACED state is temporary replaced while waiting on a rw
lock and the task can't be traced.
The delta patch against v3.12.0-rt1 is appended below and can be found
here:
https://www.kernel.org/pub/linux/kernel/projects/rt/3.12/incr/patch-3.12.0-rt1-rt2.patch.xz
The RT patch against 3.12 can be found here:
https://www.kernel.org/pub/linux/kernel/projects/rt/3.12/patch-3.12.0-rt2.patch.xz
The split quilt queue is available at:
https://www.kernel.org/pub/linux/kernel/projects/rt/3.12/patches-3.12.0-rt2.tar.xz
Sebastian
diff --git a/arch/arm/mach-at91/at91rm9200_time.c b/arch/arm/mach-at91/at91rm9200_time.c
index 0bbd8e6..35f7b26 100644
--- a/arch/arm/mach-at91/at91rm9200_time.c
+++ b/arch/arm/mach-at91/at91rm9200_time.c
@@ -134,7 +134,7 @@ clkevt32k_mode(enum clock_event_mode mode, struct clock_event_device *dev)
break;
case CLOCK_EVT_MODE_SHUTDOWN:
case CLOCK_EVT_MODE_UNUSED:
- remove_irq(AT91_ID_SYS, &at91rm9200_timer_irq);
+ remove_irq(NR_IRQS_LEGACY + AT91_ID_SYS, &at91rm9200_timer_irq);
case CLOCK_EVT_MODE_RESUME:
irqmask = 0;
break;
diff --git a/arch/arm/mach-at91/at91sam926x_time.c b/arch/arm/mach-at91/at91sam926x_time.c
index 01681e6..1c4c487 100644
--- a/arch/arm/mach-at91/at91sam926x_time.c
+++ b/arch/arm/mach-at91/at91sam926x_time.c
@@ -87,7 +87,7 @@ pit_clkevt_mode(enum clock_event_mode mode, struct clock_event_device *dev)
switch (mode) {
case CLOCK_EVT_MODE_PERIODIC:
/* Set up irq handler */
- setup_irq(AT91_ID_SYS, &at91sam926x_pit_irq);
+ setup_irq(at91sam926x_pit_irq.irq, &at91sam926x_pit_irq);
/* update clocksource counter */
pit_cnt += pit_cycle * PIT_PICNT(pit_read(AT91_PIT_PIVR));
pit_write(AT91_PIT_MR, (pit_cycle - 1) | AT91_PIT_PITEN
@@ -100,7 +100,7 @@ pit_clkevt_mode(enum clock_event_mode mode, struct clock_event_device *dev)
case CLOCK_EVT_MODE_UNUSED:
/* disable irq, leaving the clocksource active */
pit_write(AT91_PIT_MR, (pit_cycle - 1) | AT91_PIT_PITEN);
- remove_irq(AT91_ID_SYS, &at91sam926x_pit_irq);
+ remove_irq(at91sam926x_pit_irq.irq, &at91sam926x_pit_irq);
break;
case CLOCK_EVT_MODE_RESUME:
break;
diff --git a/drivers/clocksource/tcb_clksrc.c b/drivers/clocksource/tcb_clksrc.c
index c08ec1d..74fe7f7 100644
--- a/drivers/clocksource/tcb_clksrc.c
+++ b/drivers/clocksource/tcb_clksrc.c
@@ -182,9 +182,10 @@ static struct irqaction tc_irqaction = {
.handler = ch2_irq,
};
-static void __init setup_clkevents(struct atmel_tc *tc, int divisor_idx)
+static void __init setup_clkevents(struct atmel_tc *tc, int clk32k_divisor_idx)
{
- unsigned divisor = atmel_tc_divisors[divisor_idx];
+ unsigned divisor = atmel_tc_divisors[clk32k_divisor_idx];
+ u32 freq;
struct clk *t2_clk = tc->clk[2];
int irq = tc->irq[2];
@@ -193,10 +194,14 @@ static void __init setup_clkevents(struct atmel_tc *tc, int divisor_idx)
tc_irqaction.dev_id = &clkevt;
timer_clock = clk32k_divisor_idx;
+ if (!divisor)
+ freq = 32768;
+ else
+ freq = clk_get_rate(t2_clk) / divisor;
clkevt.clkevt.cpumask = cpumask_of(0);
- clockevents_config_and_register(&clkevt.clkevt, 32768, 1, 0xffff);
+ clockevents_config_and_register(&clkevt.clkevt, freq, 1, 0xffff);
setup_irq(irq, &tc_irqaction);
}
diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
index c3f904d..d07cdca 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -1375,6 +1375,20 @@ static const struct iwl_trans_ops trans_ops_pcie = {
.set_bits_mask = iwl_trans_pcie_set_bits_mask,
};
+#ifdef CONFIG_PREEMPT_RT_BASE
+static irqreturn_t iwl_rt_irq_handler(int irq, void *dev_id)
+{
+ irqreturn_t ret;
+
+ local_bh_disable();
+ ret = iwl_pcie_isr_ict(irq, dev_id);
+ local_bh_enable();
+ if (ret == IRQ_WAKE_THREAD)
+ ret = iwl_pcie_irq_handler(irq, dev_id);
+ return ret;
+}
+#endif
+
struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
const struct pci_device_id *ent,
const struct iwl_cfg *cfg)
@@ -1493,9 +1507,14 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
if (iwl_pcie_alloc_ict(trans))
goto out_free_cmd_pool;
+#ifdef CONFIG_PREEMPT_RT_BASE
+ err = request_threaded_irq(pdev->irq, NULL, iwl_rt_irq_handler,
+ IRQF_SHARED | IRQF_ONESHOT, DRV_NAME, trans);
+#else
err = request_threaded_irq(pdev->irq, iwl_pcie_isr_ict,
iwl_pcie_irq_handler,
IRQF_SHARED, DRV_NAME, trans);
+#endif
if (err) {
IWL_ERR(trans, "Error allocating IRQ %d\n", pdev->irq);
goto out_free_ict;
diff --git a/kernel/cpu.c b/kernel/cpu.c
index f07af96..c36b075 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -593,6 +593,7 @@ static int __ref _cpu_down(unsigned int cpu, int tasks_frozen)
err = -EBUSY;
goto restore_cpus;
}
+ migrate_enable();
cpu_hotplug_begin();
err = cpu_unplug_begin(cpu);
@@ -646,7 +647,6 @@ static int __ref _cpu_down(unsigned int cpu, int tasks_frozen)
out_release:
cpu_unplug_done(cpu);
out_cancel:
- migrate_enable();
cpu_hotplug_done();
if (!err)
cpu_notify_nofail(CPU_POST_DEAD | mod, hcpu);
diff --git a/kernel/futex.c b/kernel/futex.c
index 0ef419d..404d0bd 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -891,7 +891,7 @@ static int wake_futex_pi(u32 __user *uaddr, u32 uval, struct futex_q *this)
if (pi_state->owner != current)
return -EINVAL;
- raw_spin_lock(&pi_state->pi_mutex.wait_lock);
+ raw_spin_lock_irq(&pi_state->pi_mutex.wait_lock);
new_owner = rt_mutex_next_owner(&pi_state->pi_mutex);
/*
@@ -917,21 +917,21 @@ static int wake_futex_pi(u32 __user *uaddr, u32 uval, struct futex_q *this)
else if (curval != uval)
ret = -EINVAL;
if (ret) {
- raw_spin_unlock(&pi_state->pi_mutex.wait_lock);
+ raw_spin_unlock_irq(&pi_state->pi_mutex.wait_lock);
return ret;
}
}
- raw_spin_lock_irq(&pi_state->owner->pi_lock);
+ raw_spin_lock(&pi_state->owner->pi_lock);
WARN_ON(list_empty(&pi_state->list));
list_del_init(&pi_state->list);
- raw_spin_unlock_irq(&pi_state->owner->pi_lock);
+ raw_spin_unlock(&pi_state->owner->pi_lock);
- raw_spin_lock_irq(&new_owner->pi_lock);
+ raw_spin_lock(&new_owner->pi_lock);
WARN_ON(!list_empty(&pi_state->list));
list_add(&pi_state->list, &new_owner->pi_state_list);
pi_state->owner = new_owner;
- raw_spin_unlock_irq(&new_owner->pi_lock);
+ raw_spin_unlock(&new_owner->pi_lock);
raw_spin_unlock(&pi_state->pi_mutex.wait_lock);
rt_mutex_unlock(&pi_state->pi_mutex);
@@ -1762,11 +1762,11 @@ static int fixup_owner(u32 __user *uaddr, struct futex_q *q, int locked)
* we returned due to timeout or signal without taking the
* rt_mutex. Too late.
*/
- raw_spin_lock(&q->pi_state->pi_mutex.wait_lock);
+ raw_spin_lock_irq(&q->pi_state->pi_mutex.wait_lock);
owner = rt_mutex_owner(&q->pi_state->pi_mutex);
if (!owner)
owner = rt_mutex_next_owner(&q->pi_state->pi_mutex);
- raw_spin_unlock(&q->pi_state->pi_mutex.wait_lock);
+ raw_spin_unlock_irq(&q->pi_state->pi_mutex.wait_lock);
ret = fixup_pi_state_owner(uaddr, q, owner);
goto out;
}
diff --git a/kernel/rtmutex.c b/kernel/rtmutex.c
index b4c651e..c2f3f63 100644
--- a/kernel/rtmutex.c
+++ b/kernel/rtmutex.c
@@ -298,7 +298,7 @@ static int rt_mutex_adjust_prio_chain(struct task_struct *task,
plist_add(&waiter->list_entry, &lock->wait_list);
/* Release the task */
- raw_spin_unlock_irqrestore(&task->pi_lock, flags);
+ raw_spin_unlock(&task->pi_lock);
if (!rt_mutex_owner(lock)) {
struct rt_mutex_waiter *lock_top_waiter;
@@ -309,7 +309,7 @@ static int rt_mutex_adjust_prio_chain(struct task_struct *task,
lock_top_waiter = rt_mutex_top_waiter(lock);
if (top_waiter != lock_top_waiter)
rt_mutex_wake_waiter(lock_top_waiter);
- raw_spin_unlock(&lock->wait_lock);
+ raw_spin_unlock_irqrestore(&lock->wait_lock, flags);
goto out_put_task;
}
put_task_struct(task);
@@ -317,7 +317,7 @@ static int rt_mutex_adjust_prio_chain(struct task_struct *task,
/* Grab the next task */
task = rt_mutex_owner(lock);
get_task_struct(task);
- raw_spin_lock_irqsave(&task->pi_lock, flags);
+ raw_spin_lock(&task->pi_lock);
if (waiter == rt_mutex_top_waiter(lock)) {
/* Boost the owner */
@@ -335,10 +335,10 @@ static int rt_mutex_adjust_prio_chain(struct task_struct *task,
__rt_mutex_adjust_prio(task);
}
- raw_spin_unlock_irqrestore(&task->pi_lock, flags);
+ raw_spin_unlock(&task->pi_lock);
top_waiter = rt_mutex_top_waiter(lock);
- raw_spin_unlock(&lock->wait_lock);
+ raw_spin_unlock_irqrestore(&lock->wait_lock, flags);
if (!detect_deadlock && waiter != top_waiter)
goto out_put_task;
@@ -425,10 +425,9 @@ __try_to_take_rt_mutex(struct rt_mutex *lock, struct task_struct *task,
/* We got the lock. */
if (waiter || rt_mutex_has_waiters(lock)) {
- unsigned long flags;
struct rt_mutex_waiter *top;
- raw_spin_lock_irqsave(&task->pi_lock, flags);
+ raw_spin_lock(&task->pi_lock);
/* remove the queued waiter. */
if (waiter) {
@@ -445,7 +444,7 @@ __try_to_take_rt_mutex(struct rt_mutex *lock, struct task_struct *task,
top->pi_list_entry.prio = top->list_entry.prio;
plist_add(&top->pi_list_entry, &task->pi_waiters);
}
- raw_spin_unlock_irqrestore(&task->pi_lock, flags);
+ raw_spin_unlock(&task->pi_lock);
}
debug_rt_mutex_lock(lock);
@@ -478,10 +477,9 @@ static int task_blocks_on_rt_mutex(struct rt_mutex *lock,
{
struct task_struct *owner = rt_mutex_owner(lock);
struct rt_mutex_waiter *top_waiter = waiter;
- unsigned long flags;
int chain_walk = 0, res;
- raw_spin_lock_irqsave(&task->pi_lock, flags);
+ raw_spin_lock(&task->pi_lock);
/*
* In the case of futex requeue PI, this will be a proxy
@@ -493,7 +491,7 @@ static int task_blocks_on_rt_mutex(struct rt_mutex *lock,
* the task if PI_WAKEUP_INPROGRESS is set.
*/
if (task != current && task->pi_blocked_on == PI_WAKEUP_INPROGRESS) {
- raw_spin_unlock_irqrestore(&task->pi_lock, flags);
+ raw_spin_unlock(&task->pi_lock);
return -EAGAIN;
}
@@ -512,20 +510,20 @@ static int task_blocks_on_rt_mutex(struct rt_mutex *lock,
task->pi_blocked_on = waiter;
- raw_spin_unlock_irqrestore(&task->pi_lock, flags);
+ raw_spin_unlock(&task->pi_lock);
if (!owner)
return 0;
if (waiter == rt_mutex_top_waiter(lock)) {
- raw_spin_lock_irqsave(&owner->pi_lock, flags);
+ raw_spin_lock(&owner->pi_lock);
plist_del(&top_waiter->pi_list_entry, &owner->pi_waiters);
plist_add(&waiter->pi_list_entry, &owner->pi_waiters);
__rt_mutex_adjust_prio(owner);
if (rt_mutex_real_waiter(owner->pi_blocked_on))
chain_walk = 1;
- raw_spin_unlock_irqrestore(&owner->pi_lock, flags);
+ raw_spin_unlock(&owner->pi_lock);
}
else if (debug_rt_mutex_detect_deadlock(waiter, detect_deadlock))
chain_walk = 1;
@@ -540,12 +538,12 @@ static int task_blocks_on_rt_mutex(struct rt_mutex *lock,
*/
get_task_struct(owner);
- raw_spin_unlock(&lock->wait_lock);
+ raw_spin_unlock_irq(&lock->wait_lock);
res = rt_mutex_adjust_prio_chain(owner, detect_deadlock, lock, waiter,
task);
- raw_spin_lock(&lock->wait_lock);
+ raw_spin_lock_irq(&lock->wait_lock);
return res;
}
@@ -560,9 +558,8 @@ static int task_blocks_on_rt_mutex(struct rt_mutex *lock,
static void wakeup_next_waiter(struct rt_mutex *lock)
{
struct rt_mutex_waiter *waiter;
- unsigned long flags;
- raw_spin_lock_irqsave(¤t->pi_lock, flags);
+ raw_spin_lock(¤t->pi_lock);
waiter = rt_mutex_top_waiter(lock);
@@ -576,7 +573,7 @@ static void wakeup_next_waiter(struct rt_mutex *lock)
rt_mutex_set_owner(lock, NULL);
- raw_spin_unlock_irqrestore(¤t->pi_lock, flags);
+ raw_spin_unlock(¤t->pi_lock);
rt_mutex_wake_waiter(waiter);
}
@@ -592,20 +589,19 @@ static void remove_waiter(struct rt_mutex *lock,
{
int first = (waiter == rt_mutex_top_waiter(lock));
struct task_struct *owner = rt_mutex_owner(lock);
- unsigned long flags;
int chain_walk = 0;
- raw_spin_lock_irqsave(¤t->pi_lock, flags);
+ raw_spin_lock(¤t->pi_lock);
plist_del(&waiter->list_entry, &lock->wait_list);
current->pi_blocked_on = NULL;
- raw_spin_unlock_irqrestore(¤t->pi_lock, flags);
+ raw_spin_unlock(¤t->pi_lock);
if (!owner)
return;
if (first) {
- raw_spin_lock_irqsave(&owner->pi_lock, flags);
+ raw_spin_lock(&owner->pi_lock);
plist_del(&waiter->pi_list_entry, &owner->pi_waiters);
@@ -620,7 +616,7 @@ static void remove_waiter(struct rt_mutex *lock,
if (rt_mutex_real_waiter(owner->pi_blocked_on))
chain_walk = 1;
- raw_spin_unlock_irqrestore(&owner->pi_lock, flags);
+ raw_spin_unlock(&owner->pi_lock);
}
WARN_ON(!plist_node_empty(&waiter->pi_list_entry));
@@ -631,11 +627,11 @@ static void remove_waiter(struct rt_mutex *lock,
/* gets dropped in rt_mutex_adjust_prio_chain()! */
get_task_struct(owner);
- raw_spin_unlock(&lock->wait_lock);
+ raw_spin_unlock_irq(&lock->wait_lock);
rt_mutex_adjust_prio_chain(owner, 0, lock, NULL, current);
- raw_spin_lock(&lock->wait_lock);
+ raw_spin_lock_irq(&lock->wait_lock);
}
/*
@@ -723,9 +719,6 @@ static int adaptive_wait(struct rt_mutex *lock,
}
#endif
-# define pi_lock(lock) raw_spin_lock_irq(lock)
-# define pi_unlock(lock) raw_spin_unlock_irq(lock)
-
/*
* Slow path lock function spin_lock style: this variant is very
* careful not to miss any non-lock wakeups.
@@ -737,19 +730,22 @@ static void noinline __sched rt_spin_lock_slowlock(struct rt_mutex *lock)
{
struct task_struct *lock_owner, *self = current;
struct rt_mutex_waiter waiter, *top_waiter;
+ unsigned long flags;
int ret;
rt_mutex_init_waiter(&waiter, true);
- raw_spin_lock(&lock->wait_lock);
+ raw_local_save_flags(flags);
+ raw_spin_lock_irq(&lock->wait_lock);
init_lists(lock);
if (__try_to_take_rt_mutex(lock, self, NULL, STEAL_LATERAL)) {
- raw_spin_unlock(&lock->wait_lock);
+ raw_spin_unlock_irqrestore(&lock->wait_lock, flags);
return;
}
BUG_ON(rt_mutex_owner(lock) == self);
+ BUG_ON(arch_irqs_disabled_flags(flags));
/*
* We save whatever state the task is in and we'll restore it
@@ -757,10 +753,10 @@ static void noinline __sched rt_spin_lock_slowlock(struct rt_mutex *lock)
* as well. We are serialized via pi_lock against wakeups. See
* try_to_wake_up().
*/
- pi_lock(&self->pi_lock);
+ raw_spin_lock(&self->pi_lock);
self->saved_state = self->state;
__set_current_state(TASK_UNINTERRUPTIBLE);
- pi_unlock(&self->pi_lock);
+ raw_spin_unlock(&self->pi_lock);
ret = task_blocks_on_rt_mutex(lock, &waiter, self, 0);
BUG_ON(ret);
@@ -773,18 +769,18 @@ static void noinline __sched rt_spin_lock_slowlock(struct rt_mutex *lock)
top_waiter = rt_mutex_top_waiter(lock);
lock_owner = rt_mutex_owner(lock);
- raw_spin_unlock(&lock->wait_lock);
+ raw_spin_unlock_irq(&lock->wait_lock);
debug_rt_mutex_print_deadlock(&waiter);
if (top_waiter != &waiter || adaptive_wait(lock, lock_owner))
schedule_rt_mutex(lock);
- raw_spin_lock(&lock->wait_lock);
+ raw_spin_lock_irq(&lock->wait_lock);
- pi_lock(&self->pi_lock);
+ raw_spin_lock(&self->pi_lock);
__set_current_state(TASK_UNINTERRUPTIBLE);
- pi_unlock(&self->pi_lock);
+ raw_spin_unlock(&self->pi_lock);
}
/*
@@ -794,10 +790,10 @@ static void noinline __sched rt_spin_lock_slowlock(struct rt_mutex *lock)
* happened while we were blocked. Clear saved_state so
* try_to_wakeup() does not get confused.
*/
- pi_lock(&self->pi_lock);
+ raw_spin_lock(&self->pi_lock);
__set_current_state(self->saved_state);
self->saved_state = TASK_RUNNING;
- pi_unlock(&self->pi_lock);
+ raw_spin_unlock(&self->pi_lock);
/*
* try_to_take_rt_mutex() sets the waiter bit
@@ -808,7 +804,7 @@ static void noinline __sched rt_spin_lock_slowlock(struct rt_mutex *lock)
BUG_ON(rt_mutex_has_waiters(lock) && &waiter == rt_mutex_top_waiter(lock));
BUG_ON(!plist_node_empty(&waiter.list_entry));
- raw_spin_unlock(&lock->wait_lock);
+ raw_spin_unlock_irq(&lock->wait_lock);
debug_rt_mutex_free_waiter(&waiter);
}
@@ -818,7 +814,9 @@ static void noinline __sched rt_spin_lock_slowlock(struct rt_mutex *lock)
*/
static void noinline __sched rt_spin_lock_slowunlock(struct rt_mutex *lock)
{
- raw_spin_lock(&lock->wait_lock);
+ unsigned long flags;
+
+ raw_spin_lock_irqsave(&lock->wait_lock, flags);
debug_rt_mutex_unlock(lock);
@@ -826,13 +824,13 @@ static void noinline __sched rt_spin_lock_slowunlock(struct rt_mutex *lock)
if (!rt_mutex_has_waiters(lock)) {
lock->owner = NULL;
- raw_spin_unlock(&lock->wait_lock);
+ raw_spin_unlock_irqrestore(&lock->wait_lock, flags);
return;
}
wakeup_next_waiter(lock);
- raw_spin_unlock(&lock->wait_lock);
+ raw_spin_unlock_irqrestore(&lock->wait_lock, flags);
/* Undo pi boosting.when necessary */
rt_mutex_adjust_prio(current);
@@ -1032,13 +1030,13 @@ __rt_mutex_slowlock(struct rt_mutex *lock, int state,
break;
}
- raw_spin_unlock(&lock->wait_lock);
+ raw_spin_unlock_irq(&lock->wait_lock);
debug_rt_mutex_print_deadlock(waiter);
schedule_rt_mutex(lock);
- raw_spin_lock(&lock->wait_lock);
+ raw_spin_lock_irq(&lock->wait_lock);
set_current_state(state);
}
@@ -1130,20 +1128,23 @@ rt_mutex_slowlock(struct rt_mutex *lock, int state,
int detect_deadlock, struct ww_acquire_ctx *ww_ctx)
{
struct rt_mutex_waiter waiter;
+ unsigned long flags;
int ret = 0;
rt_mutex_init_waiter(&waiter, false);
- raw_spin_lock(&lock->wait_lock);
+ raw_local_save_flags(flags);
+ raw_spin_lock_irq(&lock->wait_lock);
init_lists(lock);
/* Try to acquire the lock again: */
if (try_to_take_rt_mutex(lock, current, NULL)) {
if (ww_ctx)
ww_mutex_account_lock(lock, ww_ctx);
- raw_spin_unlock(&lock->wait_lock);
+ raw_spin_unlock_irqrestore(&lock->wait_lock, flags);
return 0;
}
+ BUG_ON(arch_irqs_disabled_flags(flags));
set_current_state(state);
@@ -1172,7 +1173,7 @@ rt_mutex_slowlock(struct rt_mutex *lock, int state,
*/
fixup_rt_mutex_waiters(lock);
- raw_spin_unlock(&lock->wait_lock);
+ raw_spin_unlock_irq(&lock->wait_lock);
/* Remove pending timer: */
if (unlikely(timeout))
@@ -1189,9 +1190,10 @@ rt_mutex_slowlock(struct rt_mutex *lock, int state,
static inline int
rt_mutex_slowtrylock(struct rt_mutex *lock)
{
+ unsigned long flags;
int ret = 0;
- raw_spin_lock(&lock->wait_lock);
+ raw_spin_lock_irqsave(&lock->wait_lock, flags);
init_lists(lock);
if (likely(rt_mutex_owner(lock) != current)) {
@@ -1204,7 +1206,7 @@ rt_mutex_slowtrylock(struct rt_mutex *lock)
fixup_rt_mutex_waiters(lock);
}
- raw_spin_unlock(&lock->wait_lock);
+ raw_spin_unlock_irqrestore(&lock->wait_lock, flags);
return ret;
}
@@ -1215,7 +1217,9 @@ rt_mutex_slowtrylock(struct rt_mutex *lock)
static void __sched
rt_mutex_slowunlock(struct rt_mutex *lock)
{
- raw_spin_lock(&lock->wait_lock);
+ unsigned long flags;
+
+ raw_spin_lock_irqsave(&lock->wait_lock, flags);
debug_rt_mutex_unlock(lock);
@@ -1223,13 +1227,13 @@ rt_mutex_slowunlock(struct rt_mutex *lock)
if (!rt_mutex_has_waiters(lock)) {
lock->owner = NULL;
- raw_spin_unlock(&lock->wait_lock);
+ raw_spin_unlock_irqrestore(&lock->wait_lock, flags);
return;
}
wakeup_next_waiter(lock);
- raw_spin_unlock(&lock->wait_lock);
+ raw_spin_unlock_irqrestore(&lock->wait_lock, flags);
/* Undo pi boosting if necessary: */
rt_mutex_adjust_prio(current);
@@ -1489,10 +1493,10 @@ int rt_mutex_start_proxy_lock(struct rt_mutex *lock,
{
int ret;
- raw_spin_lock(&lock->wait_lock);
+ raw_spin_lock_irq(&lock->wait_lock);
if (try_to_take_rt_mutex(lock, task, NULL)) {
- raw_spin_unlock(&lock->wait_lock);
+ raw_spin_unlock_irq(&lock->wait_lock);
return 1;
}
@@ -1515,18 +1519,17 @@ int rt_mutex_start_proxy_lock(struct rt_mutex *lock,
* PI_REQUEUE_INPROGRESS, so that if the task is waking up
* it will know that we are in the process of requeuing it.
*/
- raw_spin_lock_irq(&task->pi_lock);
+ raw_spin_lock(&task->pi_lock);
if (task->pi_blocked_on) {
- raw_spin_unlock_irq(&task->pi_lock);
- raw_spin_unlock(&lock->wait_lock);
+ raw_spin_unlock(&task->pi_lock);
+ raw_spin_unlock_irq(&lock->wait_lock);
return -EAGAIN;
}
task->pi_blocked_on = PI_REQUEUE_INPROGRESS;
- raw_spin_unlock_irq(&task->pi_lock);
+ raw_spin_unlock(&task->pi_lock);
#endif
ret = task_blocks_on_rt_mutex(lock, waiter, task, detect_deadlock);
-
if (ret && !rt_mutex_owner(lock)) {
/*
* Reset the return value. We might have
@@ -1540,7 +1543,7 @@ int rt_mutex_start_proxy_lock(struct rt_mutex *lock,
if (unlikely(ret))
remove_waiter(lock, waiter);
- raw_spin_unlock(&lock->wait_lock);
+ raw_spin_unlock_irq(&lock->wait_lock);
debug_rt_mutex_print_deadlock(waiter);
@@ -1590,12 +1593,11 @@ int rt_mutex_finish_proxy_lock(struct rt_mutex *lock,
{
int ret;
- raw_spin_lock(&lock->wait_lock);
+ raw_spin_lock_irq(&lock->wait_lock);
set_current_state(TASK_INTERRUPTIBLE);
ret = __rt_mutex_slowlock(lock, TASK_INTERRUPTIBLE, to, waiter, NULL);
-
set_current_state(TASK_RUNNING);
if (unlikely(ret))
@@ -1607,7 +1609,7 @@ int rt_mutex_finish_proxy_lock(struct rt_mutex *lock,
*/
fixup_rt_mutex_waiters(lock);
- raw_spin_unlock(&lock->wait_lock);
+ raw_spin_unlock_irq(&lock->wait_lock);
return ret;
}
diff --git a/localversion-rt b/localversion-rt
index 6f206be..c3054d0 100644
--- a/localversion-rt
+++ b/localversion-rt
@@ -1 +1 @@
--rt1
+-rt2
^ permalink raw reply related [flat|nested] 13+ messages in thread
* Re: [ANNOUNCE] 3.12.0-rt2
2013-11-16 19:46 [ANNOUNCE] 3.12.0-rt2 Sebastian Andrzej Siewior
@ 2013-11-16 21:26 ` Pavel Vasilyev
2013-11-19 7:38 ` Sami Pietikäinen
` (2 subsequent siblings)
3 siblings, 0 replies; 13+ messages in thread
From: Pavel Vasilyev @ 2013-11-16 21:26 UTC (permalink / raw)
To: Sebastian Andrzej Siewior
Cc: linux-rt-users, LKML, Thomas Gleixner, rostedt, John Kacur
[-- Attachment #1: Type: text/plain, Size: 621 bytes --]
16.11.2013 23:46, Sebastian Andrzej Siewior пишет:
> Dear RT folks!
>
> I'm pleased to announce the v3.12.0-rt2 patch set.
I cat't still to mount filesystems!
bash not start!
1. pull git kernel 3.12
2. wget rt-patch
3. patch'em all
4. make oldconfig && make && make install
5 In cmdline type init=/bin/bash
....
And.... see screenshot:
http://i59.fastpic.ru/big/2013/1117/85/61c0a35e5a456263910ce4cf3152d085.jpg
system not response, SysRQ+B - work
3.2.52-rt72 - work
3.10.18-rt14 - work
3.12-rt2 - NO!
--
Pavel.
[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 836 bytes --]
^ permalink raw reply [flat|nested] 13+ messages in thread
* RE: [ANNOUNCE] 3.12.0-rt2
2013-11-16 19:46 [ANNOUNCE] 3.12.0-rt2 Sebastian Andrzej Siewior
2013-11-16 21:26 ` Pavel Vasilyev
@ 2013-11-19 7:38 ` Sami Pietikäinen
2013-11-22 14:23 ` Sebastian Andrzej Siewior
2013-11-21 20:44 ` [ANNOUNCE] 3.2.52-rt73 Pavel Vasilyev
2013-11-22 21:11 ` [ANNOUNCE] 3.12.1-rt4 Sebastian Andrzej Siewior
3 siblings, 1 reply; 13+ messages in thread
From: Sami Pietikäinen @ 2013-11-19 7:38 UTC (permalink / raw)
To: Sebastian Andrzej Siewior, Michael Langfinger; +Cc: linux-rt-users
[-- Attachment #1: Type: text/plain, Size: 924 bytes --]
> - tried to fix AT91's "already-free IRQ" and highres problem. Michael
> Langfinge reported it initially and Sami Pietikäinen sent a patch for
> the "already-free IRQ" problem. Based on another patch I looked at the
> highres patch and tried to fix it. As I don't have the hardware, some
> feedback would be nice.
I did a quick test run with the 3.12.0-rt2 kernel. There are no "Trying to free already free IRQ 1" warnings anymore so that issue seems to be fixed. However, the system still hangs.
CONFIG_HIGH_RES_TIMERS=y
CONFIG_ATMEL_TCB_CLKSRC=y
Hangs (or resets if the WD is enabled)
CONFIG_HIGH_RES_TIMERS=y
CONFIG_ATMEL_TCB_CLKSRC=n
Boots ok.
Now the kernel boots with the CONFIG_HIGH_RES_TIMERS enabled, but hangs when I enable the TCB clock source.
Michael, if you have spare time, maybe you could also test these configs to see if you have similar behavior.
BR,
Sami Pietikäinen
[-- Attachment #2: bootlog.txt --]
[-- Type: text/plain, Size: 10621 bytes --]
[Mon Nov 18 10:32:13.484 2013] Starting kernel ...
[Mon Nov 18 10:32:13.486 2013]
[Mon Nov 18 10:32:13.499 2013] Uncompressing Linux... done, booting the kernel.
[Mon Nov 18 10:32:13.814 2013] Booting Linux on physical CPU 0x0
[Mon Nov 18 10:32:13.817 2013] Linux version 3.12.0-rt2-custom (VirtualBox) (gcc version 4.7.2 (GCC) ) #2 PREEMPT RT Mon Nov 18 10:27:37 EET 2013
[Mon Nov 18 10:32:13.827 2013] CPU: ARMv7 Processor [410fc051] revision 1 (ARMv7), cr=50c53c7d
[Mon Nov 18 10:32:13.833 2013] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[Mon Nov 18 10:32:13.839 2013] Machine: Atmel SAMA5 (Device Tree), model:
[Mon Nov 18 10:32:13.844 2013] Memory policy: ECC disabled, Data cache writeback
[Mon Nov 18 10:32:13.849 2013] AT91: Detected soc type: sama5d3
[Mon Nov 18 10:32:13.851 2013] AT91: Detected soc subtype: sama5d35
[Mon Nov 18 10:32:13.855 2013] AT91: sram at 0x300000 of 0x20000 mapped at 0xfef58000
[Mon Nov 18 10:32:13.861 2013] DT missing boot CPU MPIDR[23:0], fall back to default cpu_logical_map
[Mon Nov 18 10:32:13.867 2013] CPU: All CPU(s) started in SVC mode.
[Mon Nov 18 10:32:13.870 2013] Clocks: CPU 528 MHz, master 132 MHz, main 12.000 MHz
[Mon Nov 18 10:32:13.874 2013] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 130048
[Mon Nov 18 10:32:13.881 2013] Kernel command line: console=ttyS0,115200 loglevel=7 loglevel=7 printk.time=0 rootfstype=ubifs ubi.mtd=4 root=ubi0:rootfs mtdparts=atmel_nand(partitioning removed)
[Mon Nov 18 10:32:13.915 2013] PID hash table entries: 2048 (order: 1, 8192 bytes)
[Mon Nov 18 10:32:13.919 2013] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[Mon Nov 18 10:32:13.925 2013] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[Mon Nov 18 10:32:13.931 2013] Memory: 516380K/524288K available (2044K kernel code, 166K rwdata, 828K rodata, 96K init, 122K bss, 7908K reserved)
[Mon Nov 18 10:32:13.941 2013] Virtual kernel memory layout:
[Mon Nov 18 10:32:13.944 2013] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[Mon Nov 18 10:32:13.948 2013] fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
[Mon Nov 18 10:32:13.952 2013] vmalloc : 0xe0800000 - 0xff000000 ( 488 MB)
[Mon Nov 18 10:32:13.957 2013] lowmem : 0xc0000000 - 0xe0000000 ( 512 MB)
[Mon Nov 18 10:32:13.961 2013] modules : 0xbf800000 - 0xc0000000 ( 8 MB)
[Mon Nov 18 10:32:13.966 2013] .text : 0xc0008000 - 0xc02d64bc (2874 kB)
[Mon Nov 18 10:32:13.970 2013] .init : 0xc02d7000 - 0xc02ef20c ( 97 kB)
[Mon Nov 18 10:32:13.975 2013] .data : 0xc02f0000 - 0xc0319a40 ( 167 kB)
[Mon Nov 18 10:32:13.980 2013] .bss : 0xc0319a4c - 0xc0338254 ( 123 kB)
[Mon Nov 18 10:32:13.984 2013] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[Mon Nov 18 10:32:13.989 2013] Preemptible hierarchical RCU implementation.
[Mon Nov 18 10:32:13.993 2013] NR_IRQS:16 nr_irqs:16 16
[Mon Nov 18 10:32:13.995 2013] sched_clock: 32 bits at 100 Hz, resolution 10000000ns, wraps every 4294967286ms
[Mon Nov 18 10:32:14.002 2013] Console: colour dummy device 80x30
[Mon Nov 18 10:32:14.005 2013] Calibrating delay loop... 351.43 BogoMIPS (lpj=1757184)
[Mon Nov 18 10:32:14.010 2013] pid_max: default: 32768 minimum: 301
[Mon Nov 18 10:32:14.014 2013] Mount-cache hash table entries: 512
[Mon Nov 18 10:32:14.017 2013] CPU: Testing write buffer coherency: ok
[Mon Nov 18 10:32:14.020 2013] Setting up static identity map for 0xc01edae8 - 0xc01edb18
[Mon Nov 18 10:32:14.026 2013] devtmpfs: initialized
[Mon Nov 18 10:32:14.028 2013] VFP support v0.3: implementor 41 architecture 2 part 30 variant 5 rev 1
[Mon Nov 18 10:32:14.034 2013] pinctrl core: initialized pinctrl subsystem
[Mon Nov 18 10:32:14.038 2013] NET: Registered protocol family 16
[Mon Nov 18 10:32:14.042 2013] DMA: preallocated 256 KiB pool for atomic coherent allocations
[Mon Nov 18 10:32:14.047 2013] gpio-at91 fffff200.gpio: at address fefff200
[Mon Nov 18 10:32:14.051 2013] gpio-at91 fffff400.gpio: at address fefff400
[Mon Nov 18 10:32:14.055 2013] gpio-at91 fffff600.gpio: at address fefff600
[Mon Nov 18 10:32:14.059 2013] gpio-at91 fffff800.gpio: at address fefff800
[Mon Nov 18 10:32:14.063 2013] gpio-at91 fffffa00.gpio: at address fefffa00
[Mon Nov 18 10:32:14.067 2013] pinctrl-at91 pinctrl.2: initialized AT91 pinctrl driver
[Mon Nov 18 10:32:14.072 2013] bio: create slab <bio-0> at 0
[Mon Nov 18 10:32:14.074 2013] at_hdmac ffffe600.dma-controller: Atmel AHB DMA Controller ( cpy slave ), 8 channels
[Mon Nov 18 10:32:14.082 2013] at_hdmac ffffe800.dma-controller: Atmel AHB DMA Controller ( cpy slave ), 8 channels
[Mon Nov 18 10:32:14.090 2013] SCSI subsystem initialized
[Mon Nov 18 10:32:14.092 2013] of_dma_request_slave_channel: dma-names property of node '/ahb/apb/i2c@f0018000' missing or empty
[Mon Nov 18 10:32:14.101 2013] at91_i2c f0018000.i2c: can't get a DMA channel for tx
[Mon Nov 18 10:32:14.106 2013] at91_i2c f0018000.i2c: can't use DMA
[Mon Nov 18 10:32:14.109 2013] at91_i2c f0018000.i2c: AT91 i2c bus driver.
[Mon Nov 18 10:32:14.113 2013] Switched to clocksource tcb_clksrc
[Mon Nov 18 10:32:14.116 2013] NET: Registered protocol family 2
[Mon Nov 18 10:32:14.119 2013] TCP established hash table entries: 4096 (order: 3, 32768 bytes)
[Mon Nov 18 10:32:14.125 2013] TCP bind hash table entries: 4096 (order: 4, 98304 bytes)
[Mon Nov 18 10:32:14.130 2013] TCP: Hash tables configured (established 4096 bind 4096)
[Mon Nov 18 10:32:14.135 2013] TCP: reno registered
[Mon Nov 18 10:32:14.137 2013] UDP hash table entries: 256 (order: 2, 16384 bytes)
[Mon Nov 18 10:32:14.141 2013] UDP-Lite hash table entries: 256 (order: 2, 16384 bytes)
[Mon Nov 18 10:32:14.146 2013] NET: Registered protocol family 1
[Mon Nov 18 10:32:14.150 2013] jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc.
[Mon Nov 18 10:32:14.155 2013] msgmni has been set to 1008
[Mon Nov 18 10:32:14.158 2013] io scheduler noop registered (default)
[Mon Nov 18 10:32:14.161 2013] ffffee00.serial: ttyS0 at MMIO 0xffffee00 (irq = 35, base_baud = 8250000) is a ATMEL_SERIAL
[Mon Nov 18 10:32:14.170 2013] console [ttyS0] enabled
[Mon Nov 18 10:32:14.174 2013] brd: module loaded
[Mon Nov 18 10:32:14.178 2013] atmel_nand: Use On Flash BBT
[Mon Nov 18 10:32:14.181 2013] atmel_nand 60000000.nand: No DMA support for NAND access.
[Mon Nov 18 10:32:14.187 2013] ONFI param page 0 valid
[Mon Nov 18 10:32:14.189 2013] ONFI flash detected
[Mon Nov 18 10:32:14.191 2013] NAND device: Manufacturer ID: 0x2c, Chip ID: 0xda (Micron MT29F2G08ABAEAWP), 256MiB, page size: 2048, OOB size: 64
[Mon Nov 18 10:32:14.201 2013] atmel_nand 60000000.nand: ONFI params, minimum required ECC: 4 bits in 512 bytes
[Mon Nov 18 10:32:14.208 2013] atmel_nand 60000000.nand: Initialize PMECC params, cap: 4, sector: 512
[Mon Nov 18 10:32:14.215 2013] Bad block table found at page 131008, version 0x01
[Mon Nov 18 10:32:14.219 2013] Bad block table found at page 130944, version 0x01
[Mon Nov 18 10:32:14.225 2013] 8 cmdlinepart partitions found on MTD device atmel_nand
[Mon Nov 18 10:32:14.230 2013] Creating 8 MTD partitions on "atmel_nand":
(nand partitioning removed)
[Mon Nov 18 10:32:14.278 2013] libphy: MACB_mii_bus: probed
[Mon Nov 18 10:32:14.283 2013] macb f0028000.ethernet eth0: Cadence GEM at 0xf0028000 irq 23 (d2:be:9e:3d:30:13)
[Mon Nov 18 10:32:14.292 2013] macb f0028000.ethernet eth0: attached PHY driver [Micrel KSZ9021 Gigabit PHY] (mii_bus:phy_addr=f0028000.etherne:01, irq=-1)
[Mon Nov 18 10:32:14.303 2013] libphy: MACB_mii_bus: probed
[Mon Nov 18 10:32:14.309 2013] macb f802c000.ethernet eth1: Cadence MACB at 0xf802c000 irq 29 (d2:be:9e:3d:30:14)
[Mon Nov 18 10:32:14.317 2013] macb f802c000.ethernet eth1: attached PHY driver [Micrel KSZ8031] (mii_bus:phy_addr=f802c000.etherne:00, irq=-1)
[Mon Nov 18 10:32:14.328 2013] at91_rtc fffffeb0.rtc: rtc core: registered fffffeb0.rtc as rtc0
[Mon Nov 18 10:32:14.334 2013] at91_rtc fffffeb0.rtc: AT91 Real Time Clock driver.
[Mon Nov 18 10:32:14.339 2013] i2c /dev entries driver
[Mon Nov 18 10:32:14.342 2013] at91sam9_wdt: sorry, watchdog is disabled
[Mon Nov 18 10:32:14.345 2013] at91_wdt: probe of fffffe40.watchdog failed with error -5
[Mon Nov 18 10:32:14.351 2013] iio iio:device0: Resolution used: 12 bits
[Mon Nov 18 10:32:14.357 2013] TCP: cubic registered
[Mon Nov 18 10:32:14.361 2013] NET: Registered protocol family 10
[Mon Nov 18 10:32:14.365 2013] sit: IPv6 over IPv4 tunneling driver
[Mon Nov 18 10:32:14.370 2013] NET: Registered protocol family 17
[Mon Nov 18 10:32:14.375 2013] UBI: attaching mtd4 to ubi0
[Mon Nov 18 10:32:14.533 2013] UBI: scanning is finished
[Mon Nov 18 10:32:14.545 2013] UBI: attached mtd4 (name "root", size 29 MiB) to ubi0
[Mon Nov 18 10:32:14.551 2013] UBI: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes
[Mon Nov 18 10:32:14.556 2013] UBI: min./max. I/O unit sizes: 2048/2048, sub-page size 2048
[Mon Nov 18 10:32:14.562 2013] UBI: VID header offset: 2048 (aligned 2048), data offset: 4096
[Mon Nov 18 10:32:14.567 2013] UBI: good PEBs: 232, bad PEBs: 0, corrupted PEBs: 0
[Mon Nov 18 10:32:14.572 2013] UBI: user volume: 1, internal volumes: 1, max. volumes count: 128
[Mon Nov 18 10:32:14.577 2013] UBI: max/mean erase counter: 1/0, WL threshold: 4096, image sequence number: 960934847
[Mon Nov 18 10:32:14.585 2013] UBI: available PEBs: 0, total reserved PEBs: 232, PEBs reserved for bad PEB handling: 40
[Mon Nov 18 10:32:14.593 2013] at91_rtc fffffeb0.rtc: setting system clock to 2013-11-15 08:13:18 UTC (1384503198)
[Mon Nov 18 10:32:14.688 2013] UBIFS: mounted UBI device 0, volume 0, name "rootfs", R/O mode
[Mon Nov 18 10:32:14.696 2013] UBIFS: LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes
[Mon Nov 18 10:32:14.703 2013] UBIFS: FS size: 22474752 bytes (21 MiB, 177 LEBs), journal size 9023488 bytes (8 MiB, 72 LEBs)
[Mon Nov 18 10:32:14.712 2013] UBIFS: reserved for root: 0 bytes (0 KiB)
[Mon Nov 18 10:32:14.716 2013] UBIFS: media format: w4/r0 (latest is w4/r0), UUID CBD0566A-AC06-466A-A627-81FD91BE44B5, small LPT model
[Mon Nov 18 10:32:14.726 2013] VFS: Mounted root (ubifs filesystem) readonly on device 0:11.
[Mon Nov 18 10:32:14.732 2013] devtmpfs: mounted
[Mon Nov 18 10:32:14.735 2013] Freeing unused kernel memory: 96K (c02d7000 - c02ef000)
[Mon Nov 18 10:32:14.871 2013] INUBI: background thread "ubi_bgt0d" started, PID 50
[Mon Nov 18 10:32:14.878 2013] IT:
(system hangs here or resets if WD is enabled)
[-- Attachment #3: config --]
[-- Type: application/octet-stream, Size: 53946 bytes --]
#
# Automatically generated file; DO NOT EDIT.
# Linux/arm 3.12.0 Kernel Configuration
#
CONFIG_ARM=y
CONFIG_SYS_SUPPORTS_APM_EMULATION=y
CONFIG_HAVE_PROC_CPU=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_VECTORS_BASE=0xffff0000
CONFIG_ARM_PATCH_PHYS_VIRT=y
CONFIG_NEED_MACH_GPIO_H=y
CONFIG_GENERIC_BUG=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_EXTABLE_SORT=y
#
# General setup
#
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE=""
# CONFIG_COMPILE_TEST is not set
CONFIG_LOCALVERSION="-custom"
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
# CONFIG_KERNEL_GZIP is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
CONFIG_KERNEL_LZO=y
# CONFIG_KERNEL_LZ4 is not set
CONFIG_DEFAULT_HOSTNAME="wrm247plus"
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
# CONFIG_POSIX_MQUEUE is not set
# CONFIG_FHANDLE is not set
# CONFIG_AUDIT is not set
#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_DEBUG=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
CONFIG_KTIME_SCALAR=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
CONFIG_NO_HZ_IDLE=y
# CONFIG_NO_HZ is not set
CONFIG_HIGH_RES_TIMERS=y
#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_IRQ_TIME_ACCOUNTING is not set
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
#
# RCU Subsystem
#
CONFIG_TREE_PREEMPT_RCU=y
CONFIG_PREEMPT_RCU=y
CONFIG_RCU_STALL_COMMON=y
CONFIG_RCU_FANOUT=32
CONFIG_RCU_FANOUT_LEAF=16
# CONFIG_RCU_FANOUT_EXACT is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_RCU_BOOST is not set
# CONFIG_RCU_NOCB_CPU is not set
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=14
CONFIG_GENERIC_SCHED_CLOCK=y
# CONFIG_CGROUPS is not set
# CONFIG_CHECKPOINT_RESTORE is not set
# CONFIG_NAMESPACES is not set
# CONFIG_UIDGID_STRICT_TYPE_CHECKS is not set
# CONFIG_SCHED_AUTOGROUP is not set
CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y
# CONFIG_RELAY is not set
# CONFIG_BLK_DEV_INITRD is not set
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_HAVE_UID16=y
CONFIG_EXPERT=y
CONFIG_UID16=y
# CONFIG_SYSCTL_SYSCALL is not set
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_EMBEDDED=y
CONFIG_HAVE_PERF_EVENTS=y
CONFIG_PERF_USE_VMALLOC=y
#
# Kernel Performance Events And Counters
#
# CONFIG_PERF_EVENTS is not set
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLUB_DEBUG=y
CONFIG_COMPAT_BRK=y
CONFIG_SLUB=y
# CONFIG_PROFILING is not set
CONFIG_HAVE_OPROFILE=y
# CONFIG_KPROBES is not set
CONFIG_JUMP_LABEL=y
# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_ATTRS=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_GENERIC_IDLE_POLL_SETUP=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_CLK=y
CONFIG_HAVE_DMA_API_DEBUG=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_HAVE_CONTEXT_TRACKING=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_REL=y
CONFIG_CLONE_BACKWARDS=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_OLD_SIGACTION=y
#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
CONFIG_HAVE_GENERIC_DMA_COHERENT=y
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
# CONFIG_MODULE_SIG is not set
CONFIG_BLOCK=y
# CONFIG_LBDAF is not set
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_BLK_DEV_BSGLIB is not set
# CONFIG_BLK_DEV_INTEGRITY is not set
# CONFIG_BLK_CMDLINE_PARSER is not set
#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_EFI_PARTITION=y
#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
CONFIG_DEFAULT_NOOP=y
CONFIG_DEFAULT_IOSCHED="noop"
# CONFIG_FREEZER is not set
#
# System Type
#
CONFIG_MMU=y
# CONFIG_ARCH_MULTIPLATFORM is not set
# CONFIG_ARCH_INTEGRATOR is not set
# CONFIG_ARCH_REALVIEW is not set
# CONFIG_ARCH_VERSATILE is not set
CONFIG_ARCH_AT91=y
# CONFIG_ARCH_CLPS711X is not set
# CONFIG_ARCH_GEMINI is not set
# CONFIG_ARCH_EBSA110 is not set
# CONFIG_ARCH_EP93XX is not set
# CONFIG_ARCH_FOOTBRIDGE is not set
# CONFIG_ARCH_NETX is not set
# CONFIG_ARCH_IOP13XX is not set
# CONFIG_ARCH_IOP32X is not set
# CONFIG_ARCH_IOP33X is not set
# CONFIG_ARCH_IXP4XX is not set
# CONFIG_ARCH_DOVE is not set
# CONFIG_ARCH_KIRKWOOD is not set
# CONFIG_ARCH_MV78XX0 is not set
# CONFIG_ARCH_ORION5X is not set
# CONFIG_ARCH_MMP is not set
# CONFIG_ARCH_KS8695 is not set
# CONFIG_ARCH_W90X900 is not set
# CONFIG_ARCH_LPC32XX is not set
# CONFIG_ARCH_PXA is not set
# CONFIG_ARCH_MSM is not set
# CONFIG_ARCH_SHMOBILE is not set
# CONFIG_ARCH_RPC is not set
# CONFIG_ARCH_SA1100 is not set
# CONFIG_ARCH_S3C24XX is not set
# CONFIG_ARCH_S3C64XX is not set
# CONFIG_ARCH_S5P64X0 is not set
# CONFIG_ARCH_S5PC100 is not set
# CONFIG_ARCH_S5PV210 is not set
# CONFIG_ARCH_EXYNOS is not set
# CONFIG_ARCH_SHARK is not set
# CONFIG_ARCH_DAVINCI is not set
# CONFIG_ARCH_OMAP1 is not set
CONFIG_HAVE_AT91_DBGU1=y
CONFIG_AT91_PMC_UNIT=y
CONFIG_AT91_SAM9_ALT_RESET=y
CONFIG_AT91_SAM9G45_RESET=y
CONFIG_AT91_SAM9_TIME=y
CONFIG_SOC_SAMA5=y
#
# Atmel AT91 System-on-Chip
#
# CONFIG_SOC_SAM_V4_V5 is not set
CONFIG_SOC_SAM_V7=y
#
# Atmel AT91 Processor
#
CONFIG_SOC_SAMA5D3=y
#
# Generic Board Type
#
CONFIG_MACH_SAMA5_DT=y
#
# AT91 Feature Selections
#
CONFIG_AT91_PROGRAMMABLE_CLOCKS=y
CONFIG_AT91_TIMER_HZ=100
# CONFIG_GPIO_PCA953X is not set
# CONFIG_PLAT_SPEAR is not set
#
# Processor Type
#
CONFIG_CPU_V7=y
CONFIG_CPU_32v6K=y
CONFIG_CPU_32v7=y
CONFIG_CPU_ABRT_EV7=y
CONFIG_CPU_PABRT_V7=y
CONFIG_CPU_CACHE_V7=y
CONFIG_CPU_CACHE_VIPT=y
CONFIG_CPU_COPY_V6=y
CONFIG_CPU_TLB_V7=y
CONFIG_CPU_HAS_ASID=y
CONFIG_CPU_CP15=y
CONFIG_CPU_CP15_MMU=y
#
# Processor Features
#
# CONFIG_ARM_LPAE is not set
# CONFIG_ARCH_PHYS_ADDR_T_64BIT is not set
CONFIG_ARM_THUMB=y
# CONFIG_ARM_THUMBEE is not set
CONFIG_ARM_VIRT_EXT=y
# CONFIG_SWP_EMULATE is not set
# CONFIG_CPU_ICACHE_DISABLE is not set
# CONFIG_CPU_DCACHE_DISABLE is not set
# CONFIG_CPU_BPREDICT_DISABLE is not set
CONFIG_KUSER_HELPERS=y
# CONFIG_CACHE_L2X0 is not set
CONFIG_ARM_L1_CACHE_SHIFT_6=y
CONFIG_ARM_L1_CACHE_SHIFT=6
CONFIG_ARM_DMA_MEM_BUFFERABLE=y
CONFIG_ARM_NR_BANKS=8
CONFIG_MULTI_IRQ_HANDLER=y
# CONFIG_ARM_ERRATA_430973 is not set
# CONFIG_ARM_ERRATA_458693 is not set
# CONFIG_ARM_ERRATA_460075 is not set
# CONFIG_ARM_ERRATA_720789 is not set
# CONFIG_ARM_ERRATA_743622 is not set
# CONFIG_ARM_ERRATA_751472 is not set
# CONFIG_ARM_ERRATA_754322 is not set
# CONFIG_ARM_ERRATA_775420 is not set
# CONFIG_ARM_ERRATA_773022 is not set
#
# Bus support
#
# CONFIG_PCI_SYSCALL is not set
# CONFIG_PCCARD is not set
#
# Kernel Features
#
# CONFIG_HAVE_ARM_ARCH_TIMER is not set
CONFIG_VMSPLIT_3G=y
# CONFIG_VMSPLIT_2G is not set
# CONFIG_VMSPLIT_1G is not set
CONFIG_PAGE_OFFSET=0xC0000000
# CONFIG_ARM_PSCI is not set
CONFIG_ARCH_NR_GPIO=0
CONFIG_PREEMPT=y
CONFIG_PREEMPT_RT_BASE=y
CONFIG_HAVE_PREEMPT_LAZY=y
CONFIG_PREEMPT_LAZY=y
# CONFIG_PREEMPT_NONE is not set
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT__LL is not set
# CONFIG_PREEMPT_RTB is not set
CONFIG_PREEMPT_RT_FULL=y
CONFIG_PREEMPT_COUNT=y
CONFIG_HZ_FIXED=100
CONFIG_HZ=100
CONFIG_SCHED_HRTICK=y
CONFIG_THUMB2_KERNEL=y
CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11=y
CONFIG_ARM_ASM_UNIFIED=y
CONFIG_AEABI=y
# CONFIG_ARCH_SPARSEMEM_DEFAULT is not set
# CONFIG_ARCH_SELECT_MEMORY_MODEL is not set
CONFIG_HAVE_ARCH_PFN_VALID=y
# CONFIG_HIGHMEM is not set
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_HAVE_MEMBLOCK=y
# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_COMPACTION is not set
# CONFIG_PHYS_ADDR_T_64BIT is not set
CONFIG_ZONE_DMA_FLAG=0
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_CROSS_MEMORY_ATTACH=y
CONFIG_NEED_PER_CPU_KM=y
# CONFIG_CLEANCACHE is not set
# CONFIG_CMA is not set
# CONFIG_ZBUD is not set
CONFIG_FORCE_MAX_ZONEORDER=11
CONFIG_ALIGNMENT_TRAP=y
CONFIG_UACCESS_WITH_MEMCPY=y
# CONFIG_SECCOMP is not set
# CONFIG_CC_STACKPROTECTOR is not set
# CONFIG_XEN is not set
#
# Boot options
#
CONFIG_USE_OF=y
CONFIG_ATAGS=y
# CONFIG_DEPRECATED_PARAM_STRUCT is not set
CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
CONFIG_ARM_APPENDED_DTB=y
CONFIG_ARM_ATAG_DTB_COMPAT=y
CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER=y
# CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND is not set
CONFIG_CMDLINE="console=ttyS0,115200 initrd=0x21100000,25165824 root=/dev/ram0 rw"
CONFIG_CMDLINE_FROM_BOOTLOADER=y
# CONFIG_CMDLINE_EXTEND is not set
# CONFIG_CMDLINE_FORCE is not set
# CONFIG_XIP_KERNEL is not set
# CONFIG_KEXEC is not set
# CONFIG_CRASH_DUMP is not set
CONFIG_AUTO_ZRELADDR=y
#
# CPU Power Management
#
#
# CPU Idle
#
# CONFIG_CPU_IDLE is not set
# CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED is not set
#
# Floating point emulation
#
#
# At least one emulation must be selected
#
CONFIG_VFP=y
CONFIG_VFPv3=y
# CONFIG_NEON is not set
#
# Userspace binary formats
#
CONFIG_BINFMT_ELF=y
CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
CONFIG_BINFMT_SCRIPT=y
# CONFIG_HAVE_AOUT is not set
# CONFIG_BINFMT_MISC is not set
CONFIG_COREDUMP=y
#
# Power management options
#
# CONFIG_SUSPEND is not set
# CONFIG_PM_RUNTIME is not set
CONFIG_ARCH_SUSPEND_POSSIBLE=y
# CONFIG_ARM_CPU_SUSPEND is not set
CONFIG_NET=y
#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_DIAG is not set
CONFIG_UNIX=y
# CONFIG_UNIX_DIAG is not set
# CONFIG_XFRM_USER is not set
# CONFIG_NET_KEY is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
# CONFIG_IP_PNP_DHCP is not set
# CONFIG_IP_PNP_BOOTP is not set
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
CONFIG_NET_IP_TUNNEL=y
# CONFIG_IP_MROUTE is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
CONFIG_INET_TUNNEL=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
CONFIG_IPV6=y
# CONFIG_IPV6_PRIVACY is not set
# CONFIG_IPV6_ROUTER_PREF is not set
# CONFIG_IPV6_OPTIMISTIC_DAD is not set
# CONFIG_INET6_AH is not set
# CONFIG_INET6_ESP is not set
# CONFIG_INET6_IPCOMP is not set
# CONFIG_IPV6_MIP6 is not set
# CONFIG_INET6_XFRM_TUNNEL is not set
# CONFIG_INET6_TUNNEL is not set
# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET6_XFRM_MODE_TUNNEL is not set
# CONFIG_INET6_XFRM_MODE_BEET is not set
# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
CONFIG_IPV6_SIT=y
CONFIG_IPV6_SIT_6RD=y
CONFIG_IPV6_NDISC_NODETYPE=y
# CONFIG_IPV6_TUNNEL is not set
# CONFIG_IPV6_GRE is not set
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_IPV6_MROUTE is not set
# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
# CONFIG_NETFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
# CONFIG_BRIDGE is not set
CONFIG_HAVE_NET_DSA=y
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
# CONFIG_BATMAN_ADV is not set
# CONFIG_OPENVSWITCH is not set
# CONFIG_VSOCKETS is not set
# CONFIG_NETLINK_MMAP is not set
# CONFIG_NETLINK_DIAG is not set
# CONFIG_NET_MPLS_GSO is not set
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
# CONFIG_BPF_JIT is not set
#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
CONFIG_WIRELESS=y
CONFIG_CFG80211=m
# CONFIG_NL80211_TESTMODE is not set
# CONFIG_CFG80211_DEVELOPER_WARNINGS is not set
# CONFIG_CFG80211_REG_DEBUG is not set
# CONFIG_CFG80211_CERTIFICATION_ONUS is not set
CONFIG_CFG80211_DEFAULT_PS=y
# CONFIG_CFG80211_DEBUGFS is not set
# CONFIG_CFG80211_INTERNAL_REGDB is not set
# CONFIG_CFG80211_WEXT is not set
# CONFIG_LIB80211 is not set
CONFIG_MAC80211=m
CONFIG_MAC80211_HAS_RC=y
# CONFIG_MAC80211_RC_PID is not set
CONFIG_MAC80211_RC_MINSTREL=y
CONFIG_MAC80211_RC_MINSTREL_HT=y
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT="minstrel_ht"
# CONFIG_MAC80211_MESH is not set
# CONFIG_MAC80211_DEBUGFS is not set
# CONFIG_MAC80211_MESSAGE_TRACING is not set
# CONFIG_MAC80211_DEBUG_MENU is not set
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set
CONFIG_HAVE_BPF_JIT=y
#
# Device Drivers
#
#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH=""
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
CONFIG_FW_LOADER_USER_HELPER=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_GENERIC_CPU_DEVICES is not set
# CONFIG_DMA_SHARED_BUFFER is not set
#
# Bus devices
#
# CONFIG_ARM_CCI is not set
# CONFIG_CONNECTOR is not set
CONFIG_MTD=y
# CONFIG_MTD_TESTS is not set
# CONFIG_MTD_REDBOOT_PARTS is not set
CONFIG_MTD_CMDLINE_PARTS=y
# CONFIG_MTD_AFS_PARTS is not set
CONFIG_MTD_OF_PARTS=y
# CONFIG_MTD_AR7_PARTS is not set
#
# User Modules And Translation Layers
#
CONFIG_MTD_BLKDEVS=y
CONFIG_MTD_BLOCK=y
# CONFIG_FTL is not set
# CONFIG_NFTL is not set
# CONFIG_INFTL is not set
# CONFIG_RFD_FTL is not set
# CONFIG_SSFDC is not set
# CONFIG_SM_FTL is not set
# CONFIG_MTD_OOPS is not set
#
# RAM/ROM/Flash chip drivers
#
CONFIG_MTD_CFI=y
# CONFIG_MTD_JEDECPROBE is not set
CONFIG_MTD_GEN_PROBE=y
# CONFIG_MTD_CFI_ADV_OPTIONS is not set
CONFIG_MTD_MAP_BANK_WIDTH_1=y
CONFIG_MTD_MAP_BANK_WIDTH_2=y
CONFIG_MTD_MAP_BANK_WIDTH_4=y
# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
CONFIG_MTD_CFI_I1=y
CONFIG_MTD_CFI_I2=y
# CONFIG_MTD_CFI_I4 is not set
# CONFIG_MTD_CFI_I8 is not set
# CONFIG_MTD_CFI_INTELEXT is not set
# CONFIG_MTD_CFI_AMDSTD is not set
# CONFIG_MTD_CFI_STAA is not set
CONFIG_MTD_CFI_UTIL=y
# CONFIG_MTD_RAM is not set
# CONFIG_MTD_ROM is not set
# CONFIG_MTD_ABSENT is not set
#
# Mapping drivers for chip access
#
# CONFIG_MTD_COMPLEX_MAPPINGS is not set
# CONFIG_MTD_PHYSMAP is not set
# CONFIG_MTD_PHYSMAP_OF is not set
# CONFIG_MTD_PLATRAM is not set
#
# Self-contained MTD device drivers
#
# CONFIG_MTD_DATAFLASH is not set
CONFIG_MTD_M25P80=y
CONFIG_M25PXX_USE_FAST_READ=y
# CONFIG_MTD_SST25L is not set
# CONFIG_MTD_SLRAM is not set
# CONFIG_MTD_PHRAM is not set
# CONFIG_MTD_MTDRAM is not set
# CONFIG_MTD_BLOCK2MTD is not set
#
# Disk-On-Chip Device Drivers
#
# CONFIG_MTD_DOCG3 is not set
CONFIG_MTD_NAND_ECC=y
# CONFIG_MTD_NAND_ECC_SMC is not set
CONFIG_MTD_NAND=y
# CONFIG_MTD_NAND_ECC_BCH is not set
# CONFIG_MTD_SM_COMMON is not set
# CONFIG_MTD_NAND_DENALI is not set
# CONFIG_MTD_NAND_GPIO is not set
CONFIG_MTD_NAND_IDS=y
# CONFIG_MTD_NAND_DISKONCHIP is not set
# CONFIG_MTD_NAND_DOCG4 is not set
CONFIG_MTD_NAND_ATMEL=y
# CONFIG_MTD_NAND_NANDSIM is not set
# CONFIG_MTD_NAND_PLATFORM is not set
# CONFIG_MTD_ONENAND is not set
#
# LPDDR flash memory drivers
#
# CONFIG_MTD_LPDDR is not set
CONFIG_MTD_UBI=y
CONFIG_MTD_UBI_WL_THRESHOLD=4096
CONFIG_MTD_UBI_BEB_LIMIT=20
# CONFIG_MTD_UBI_FASTMAP is not set
# CONFIG_MTD_UBI_GLUEBI is not set
CONFIG_DTC=y
CONFIG_OF=y
#
# Device Tree and Open Firmware support
#
CONFIG_PROC_DEVICETREE=y
# CONFIG_OF_SELFTEST is not set
CONFIG_OF_FLATTREE=y
CONFIG_OF_EARLY_FLATTREE=y
CONFIG_OF_ADDRESS=y
CONFIG_OF_IRQ=y
CONFIG_OF_NET=y
CONFIG_OF_MDIO=y
CONFIG_OF_MTD=y
# CONFIG_PARPORT is not set
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_COW_COMMON is not set
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_DRBD is not set
# CONFIG_BLK_DEV_NBD is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=4
CONFIG_BLK_DEV_RAM_SIZE=8192
# CONFIG_BLK_DEV_XIP is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_MG_DISK is not set
# CONFIG_BLK_DEV_RBD is not set
#
# Misc devices
#
# CONFIG_SENSORS_LIS3LV02D is not set
# CONFIG_AD525X_DPOT is not set
# CONFIG_ATMEL_PWM is not set
CONFIG_ATMEL_TCLIB=y
CONFIG_ATMEL_TCB_CLKSRC=y
CONFIG_ATMEL_TCB_CLKSRC_BLOCK=0
# CONFIG_ATMEL_TCB_CLKSRC_USE_SLOW_CLOCK is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_ICS932S401 is not set
CONFIG_ATMEL_SSC=y
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_APDS9802ALS is not set
# CONFIG_ISL29003 is not set
# CONFIG_ISL29020 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_SENSORS_BH1780 is not set
# CONFIG_SENSORS_BH1770 is not set
# CONFIG_SENSORS_APDS990X is not set
# CONFIG_HMC6352 is not set
# CONFIG_DS1682 is not set
# CONFIG_TI_DAC7512 is not set
# CONFIG_BMP085_I2C is not set
# CONFIG_BMP085_SPI is not set
# CONFIG_USB_SWITCH_FSA9480 is not set
# CONFIG_LATTICE_ECP3_CONFIG is not set
# CONFIG_SRAM is not set
# CONFIG_C2PORT is not set
#
# EEPROM support
#
CONFIG_EEPROM_AT24=y
# CONFIG_EEPROM_AT25 is not set
# CONFIG_EEPROM_LEGACY is not set
# CONFIG_EEPROM_MAX6875 is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_EEPROM_93XX46 is not set
#
# Texas Instruments shared transport line discipline
#
# CONFIG_TI_ST is not set
# CONFIG_SENSORS_LIS3_SPI is not set
# CONFIG_SENSORS_LIS3_I2C is not set
#
# Altera FPGA firmware download module
#
# CONFIG_ALTERA_STAPL is not set
#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_TGT is not set
# CONFIG_SCSI_NETLINK is not set
CONFIG_SCSI_PROC_FS=y
#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
# CONFIG_BLK_DEV_SR is not set
# CONFIG_CHR_DEV_SG is not set
# CONFIG_CHR_DEV_SCH is not set
CONFIG_SCSI_MULTI_LUN=y
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set
#
# SCSI Transports
#
# CONFIG_SCSI_SPI_ATTRS is not set
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
# CONFIG_SCSI_LOWLEVEL is not set
# CONFIG_SCSI_DH is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
# CONFIG_ATA is not set
# CONFIG_MD is not set
# CONFIG_TARGET_CORE is not set
CONFIG_NETDEVICES=y
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
# CONFIG_DUMMY is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_TEAM is not set
# CONFIG_MACVLAN is not set
# CONFIG_VXLAN is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_TUN is not set
# CONFIG_VETH is not set
# CONFIG_NLMON is not set
#
# CAIF transport drivers
#
#
# Distributed Switch Architecture drivers
#
# CONFIG_NET_DSA_MV88E6XXX is not set
# CONFIG_NET_DSA_MV88E6060 is not set
# CONFIG_NET_DSA_MV88E6XXX_NEED_PPU is not set
# CONFIG_NET_DSA_MV88E6131 is not set
# CONFIG_NET_DSA_MV88E6123_61_65 is not set
CONFIG_ETHERNET=y
CONFIG_NET_VENDOR_ARC=y
# CONFIG_ARC_EMAC is not set
CONFIG_NET_CADENCE=y
# CONFIG_ARM_AT91_ETHER is not set
CONFIG_MACB=y
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_CALXEDA_XGMAC is not set
# CONFIG_NET_VENDOR_CIRRUS is not set
# CONFIG_DM9000 is not set
# CONFIG_DNET is not set
# CONFIG_NET_VENDOR_FARADAY is not set
# CONFIG_NET_VENDOR_INTEL is not set
# CONFIG_NET_VENDOR_MARVELL is not set
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_MICROCHIP is not set
# CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_ETHOC is not set
# CONFIG_SH_ETH is not set
# CONFIG_NET_VENDOR_SEEQ is not set
# CONFIG_NET_VENDOR_SMSC is not set
# CONFIG_NET_VENDOR_STMICRO is not set
CONFIG_NET_VENDOR_VIA=y
# CONFIG_VIA_VELOCITY is not set
# CONFIG_NET_VENDOR_WIZNET is not set
CONFIG_PHYLIB=y
#
# MII PHY device drivers
#
# CONFIG_AT803X_PHY is not set
# CONFIG_AMD_PHY is not set
# CONFIG_MARVELL_PHY is not set
# CONFIG_DAVICOM_PHY is not set
# CONFIG_QSEMI_PHY is not set
# CONFIG_LXT_PHY is not set
# CONFIG_CICADA_PHY is not set
# CONFIG_VITESSE_PHY is not set
# CONFIG_SMSC_PHY is not set
# CONFIG_BROADCOM_PHY is not set
# CONFIG_BCM87XX_PHY is not set
# CONFIG_ICPLUS_PHY is not set
# CONFIG_REALTEK_PHY is not set
# CONFIG_NATIONAL_PHY is not set
# CONFIG_STE10XP is not set
# CONFIG_LSI_ET1011C_PHY is not set
CONFIG_MICREL_PHY=y
# CONFIG_FIXED_PHY is not set
# CONFIG_MDIO_BITBANG is not set
# CONFIG_MDIO_BUS_MUX_GPIO is not set
# CONFIG_MDIO_BUS_MUX_MMIOREG is not set
# CONFIG_MICREL_KS8995MA is not set
CONFIG_PPP=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_DEFLATE=m
# CONFIG_PPP_FILTER is not set
# CONFIG_PPP_MPPE is not set
# CONFIG_PPP_MULTILINK is not set
CONFIG_PPPOE=m
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
# CONFIG_SLIP is not set
CONFIG_SLHC=m
#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_RTL8152 is not set
# CONFIG_USB_USBNET is not set
# CONFIG_USB_IPHETH is not set
CONFIG_WLAN=y
# CONFIG_LIBERTAS_THINFIRM is not set
# CONFIG_AT76C50X_USB is not set
# CONFIG_USB_ZD1201 is not set
# CONFIG_USB_NET_RNDIS_WLAN is not set
# CONFIG_RTL8187 is not set
# CONFIG_MAC80211_HWSIM is not set
# CONFIG_ATH_CARDS is not set
# CONFIG_B43 is not set
# CONFIG_B43LEGACY is not set
# CONFIG_BRCMFMAC is not set
# CONFIG_HOSTAP is not set
# CONFIG_LIBERTAS is not set
# CONFIG_P54_COMMON is not set
# CONFIG_RT2X00 is not set
CONFIG_RTL_CARDS=m
# CONFIG_RTL8192CU is not set
CONFIG_WL_TI=y
# CONFIG_WL1251 is not set
CONFIG_WL12XX=m
# CONFIG_WL18XX is not set
CONFIG_WLCORE=m
# CONFIG_WLCORE_SPI is not set
CONFIG_WLCORE_SDIO=m
CONFIG_WILINK_PLATFORM_DATA=y
# CONFIG_ZD1211RW is not set
# CONFIG_MWIFIEX is not set
# CONFIG_CW1200 is not set
#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
# CONFIG_WAN is not set
# CONFIG_ISDN is not set
#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_INPUT_MATRIXKMAP is not set
#
# Userland interfaces
#
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set
#
# Input Device Drivers
#
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
#
# Hardware I/O ports
#
# CONFIG_SERIO is not set
# CONFIG_GAMEPORT is not set
#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=4
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_N_GSM is not set
# CONFIG_TRACE_SINK is not set
CONFIG_DEVKMEM=y
#
# Serial drivers
#
# CONFIG_SERIAL_8250 is not set
#
# Non-8250 serial port support
#
CONFIG_SERIAL_ATMEL=y
CONFIG_SERIAL_ATMEL_CONSOLE=y
CONFIG_SERIAL_ATMEL_PDC=y
# CONFIG_SERIAL_ATMEL_TTYAT is not set
# CONFIG_SERIAL_MAX3100 is not set
# CONFIG_SERIAL_MAX310X is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_TIMBERDALE is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_IFX6X60 is not set
# CONFIG_SERIAL_XILINX_PS_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_SERIAL_ST_ASC is not set
# CONFIG_TTY_PRINTK is not set
# CONFIG_HVC_DCC is not set
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
CONFIG_HW_RANDOM_ATMEL=y
# CONFIG_HW_RANDOM_EXYNOS is not set
# CONFIG_R3964 is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
CONFIG_I2C_CHARDEV=y
# CONFIG_I2C_MUX is not set
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_ALGOBIT=y
#
# I2C Hardware Bus support
#
#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
CONFIG_I2C_AT91=y
# CONFIG_I2C_CBUS_GPIO is not set
# CONFIG_I2C_DESIGNWARE_PLATFORM is not set
CONFIG_I2C_GPIO=y
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_PXA_PCI is not set
# CONFIG_I2C_SIMTEC is not set
# CONFIG_I2C_XILINX is not set
#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_DIOLAN_U2C is not set
# CONFIG_I2C_PARPORT_LIGHT is not set
# CONFIG_I2C_TAOS_EVM is not set
# CONFIG_I2C_TINY_USB is not set
#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_STUB is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
CONFIG_SPI=y
# CONFIG_SPI_DEBUG is not set
CONFIG_SPI_MASTER=y
#
# SPI Master Controller Drivers
#
# CONFIG_SPI_ALTERA is not set
CONFIG_SPI_ATMEL=y
# CONFIG_SPI_BITBANG is not set
# CONFIG_SPI_GPIO is not set
# CONFIG_SPI_FSL_SPI is not set
# CONFIG_SPI_FSL_DSPI is not set
# CONFIG_SPI_OC_TINY is not set
# CONFIG_SPI_PXA2XX_PCI is not set
# CONFIG_SPI_SC18IS602 is not set
# CONFIG_SPI_XCOMM is not set
# CONFIG_SPI_XILINX is not set
# CONFIG_SPI_DESIGNWARE is not set
#
# SPI Protocol Masters
#
# CONFIG_SPI_SPIDEV is not set
# CONFIG_SPI_TLE62X0 is not set
# CONFIG_HSI is not set
#
# PPS support
#
# CONFIG_PPS is not set
#
# PPS generators support
#
#
# PTP clock support
#
# CONFIG_PTP_1588_CLOCK is not set
#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
CONFIG_PINCTRL=y
#
# Pin controllers
#
CONFIG_PINMUX=y
CONFIG_PINCONF=y
# CONFIG_DEBUG_PINCTRL is not set
CONFIG_PINCTRL_AT91=y
# CONFIG_PINCTRL_SINGLE is not set
CONFIG_ARCH_HAVE_CUSTOM_GPIO_H=y
CONFIG_ARCH_REQUIRE_GPIOLIB=y
CONFIG_GPIO_DEVRES=y
CONFIG_GPIOLIB=y
CONFIG_OF_GPIO=y
# CONFIG_DEBUG_GPIO is not set
CONFIG_GPIO_SYSFS=y
#
# Memory mapped GPIO drivers:
#
# CONFIG_GPIO_GENERIC_PLATFORM is not set
# CONFIG_GPIO_EM is not set
# CONFIG_GPIO_RCAR is not set
# CONFIG_GPIO_TS5500 is not set
# CONFIG_GPIO_GRGPIO is not set
#
# I2C GPIO expanders:
#
# CONFIG_GPIO_MAX7300 is not set
# CONFIG_GPIO_MAX732X is not set
# CONFIG_GPIO_PCF857X is not set
# CONFIG_GPIO_SX150X is not set
# CONFIG_GPIO_ADP5588 is not set
# CONFIG_GPIO_ADNP is not set
#
# PCI GPIO expanders:
#
#
# SPI GPIO expanders:
#
# CONFIG_GPIO_MAX7301 is not set
# CONFIG_GPIO_MCP23S08 is not set
# CONFIG_GPIO_MC33880 is not set
# CONFIG_GPIO_74X164 is not set
#
# AC97 GPIO expanders:
#
#
# LPC GPIO expanders:
#
#
# MODULbus GPIO expanders:
#
#
# USB GPIO expanders:
#
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_POWER_AVS is not set
# CONFIG_HWMON is not set
# CONFIG_THERMAL is not set
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
CONFIG_WATCHDOG_NOWAYOUT=y
#
# Watchdog Device Drivers
#
# CONFIG_SOFT_WATCHDOG is not set
CONFIG_AT91SAM9X_WATCHDOG=y
# CONFIG_DW_WATCHDOG is not set
# CONFIG_MAX63XX_WATCHDOG is not set
# CONFIG_MEN_A21_WDT is not set
#
# USB-based Watchdog Cards
#
# CONFIG_USBPCWATCHDOG is not set
CONFIG_SSB_POSSIBLE=y
#
# Sonics Silicon Backplane
#
CONFIG_SSB=m
CONFIG_SSB_SDIOHOST_POSSIBLE=y
# CONFIG_SSB_SDIOHOST is not set
# CONFIG_SSB_SILENT is not set
# CONFIG_SSB_DEBUG is not set
# CONFIG_SSB_DRIVER_GPIO is not set
CONFIG_BCMA_POSSIBLE=y
#
# Broadcom specific AMBA
#
# CONFIG_BCMA is not set
#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_AS3711 is not set
# CONFIG_PMIC_ADP5520 is not set
# CONFIG_MFD_AAT2870_CORE is not set
# CONFIG_MFD_CROS_EC is not set
# CONFIG_MFD_ASIC3 is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_MFD_DA9052_SPI is not set
# CONFIG_MFD_DA9052_I2C is not set
# CONFIG_MFD_DA9055 is not set
# CONFIG_MFD_DA9063 is not set
# CONFIG_MFD_MC13XXX_SPI is not set
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_HTC_EGPIO is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_HTC_I2CPLD is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_88PM800 is not set
# CONFIG_MFD_88PM805 is not set
# CONFIG_MFD_88PM860X is not set
# CONFIG_MFD_MAX77686 is not set
# CONFIG_MFD_MAX77693 is not set
# CONFIG_MFD_MAX8907 is not set
# CONFIG_MFD_MAX8925 is not set
# CONFIG_MFD_MAX8997 is not set
# CONFIG_MFD_MAX8998 is not set
# CONFIG_EZX_PCAP is not set
# CONFIG_MFD_VIPERBOARD is not set
# CONFIG_MFD_RETU is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_MFD_RC5T583 is not set
# CONFIG_MFD_SEC_CORE is not set
# CONFIG_MFD_SI476X_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_MFD_SMSC is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_MFD_STMPE is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_LP8788 is not set
# CONFIG_MFD_PALMAS is not set
# CONFIG_TPS6105X is not set
# CONFIG_TPS65010 is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65090 is not set
# CONFIG_MFD_TPS65217 is not set
# CONFIG_MFD_TPS6586X is not set
# CONFIG_MFD_TPS65910 is not set
# CONFIG_MFD_TPS65912 is not set
# CONFIG_MFD_TPS65912_I2C is not set
# CONFIG_MFD_TPS65912_SPI is not set
# CONFIG_MFD_TPS80031 is not set
# CONFIG_TWL4030_CORE is not set
# CONFIG_TWL6040_CORE is not set
# CONFIG_MFD_WL1273_CORE is not set
# CONFIG_MFD_LM3533 is not set
# CONFIG_MFD_TC3589X is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_MFD_T7L66XB is not set
# CONFIG_MFD_TC6387XB is not set
# CONFIG_MFD_TC6393XB is not set
# CONFIG_MFD_ARIZONA_I2C is not set
# CONFIG_MFD_ARIZONA_SPI is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X_I2C is not set
# CONFIG_MFD_WM831X_SPI is not set
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_WM8994 is not set
# CONFIG_VEXPRESS_CONFIG is not set
# CONFIG_REGULATOR is not set
# CONFIG_MEDIA_SUPPORT is not set
#
# Graphics support
#
CONFIG_HAVE_FB_ATMEL=y
# CONFIG_DRM is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
# CONFIG_FB is not set
# CONFIG_EXYNOS_VIDEO is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
# CONFIG_SOUND is not set
#
# HID support
#
CONFIG_HID=y
# CONFIG_HIDRAW is not set
# CONFIG_UHID is not set
# CONFIG_HID_GENERIC is not set
#
# Special HID drivers
#
# CONFIG_HID_A4TECH is not set
# CONFIG_HID_ACRUX is not set
# CONFIG_HID_APPLE is not set
# CONFIG_HID_AUREAL is not set
# CONFIG_HID_BELKIN is not set
# CONFIG_HID_CHERRY is not set
# CONFIG_HID_CHICONY is not set
# CONFIG_HID_CYPRESS is not set
# CONFIG_HID_DRAGONRISE is not set
# CONFIG_HID_EMS_FF is not set
# CONFIG_HID_ELECOM is not set
# CONFIG_HID_EZKEY is not set
# CONFIG_HID_KEYTOUCH is not set
# CONFIG_HID_KYE is not set
# CONFIG_HID_UCLOGIC is not set
# CONFIG_HID_WALTOP is not set
# CONFIG_HID_GYRATION is not set
# CONFIG_HID_ICADE is not set
# CONFIG_HID_TWINHAN is not set
# CONFIG_HID_KENSINGTON is not set
# CONFIG_HID_LCPOWER is not set
# CONFIG_HID_LOGITECH is not set
# CONFIG_HID_MAGICMOUSE is not set
# CONFIG_HID_MICROSOFT is not set
# CONFIG_HID_MONTEREY is not set
# CONFIG_HID_MULTITOUCH is not set
# CONFIG_HID_ORTEK is not set
# CONFIG_HID_PANTHERLORD is not set
# CONFIG_HID_PETALYNX is not set
# CONFIG_HID_PICOLCD is not set
# CONFIG_HID_PRIMAX is not set
# CONFIG_HID_SAITEK is not set
# CONFIG_HID_SAMSUNG is not set
# CONFIG_HID_SPEEDLINK is not set
# CONFIG_HID_STEELSERIES is not set
# CONFIG_HID_SUNPLUS is not set
# CONFIG_HID_GREENASIA is not set
# CONFIG_HID_SMARTJOYPLUS is not set
# CONFIG_HID_TIVO is not set
# CONFIG_HID_TOPSEED is not set
# CONFIG_HID_THRUSTMASTER is not set
# CONFIG_HID_XINMO is not set
# CONFIG_HID_ZEROPLUS is not set
# CONFIG_HID_ZYDACRON is not set
# CONFIG_HID_SENSOR_HUB is not set
#
# USB HID support
#
# CONFIG_USB_HID is not set
# CONFIG_HID_PID is not set
#
# USB HID Boot Protocol drivers
#
# CONFIG_USB_KBD is not set
# CONFIG_USB_MOUSE is not set
#
# I2C HID support
#
# CONFIG_I2C_HID is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=m
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=m
# CONFIG_USB_DEBUG is not set
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
#
# Miscellaneous USB options
#
CONFIG_USB_DEFAULT_PERSIST=y
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG_WHITELIST is not set
# CONFIG_USB_OTG_BLACKLIST_HUB is not set
# CONFIG_USB_MON is not set
# CONFIG_USB_WUSB_CBAF is not set
#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
# CONFIG_USB_XHCI_HCD is not set
CONFIG_USB_EHCI_HCD=m
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
CONFIG_USB_EHCI_TT_NEWSCHED=y
CONFIG_USB_EHCI_HCD_AT91=m
# CONFIG_USB_EHCI_HCD_PLATFORM is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
# CONFIG_USB_FUSBH200_HCD is not set
# CONFIG_USB_FOTG210_HCD is not set
CONFIG_USB_OHCI_HCD=m
# CONFIG_USB_OHCI_HCD_SSB is not set
# CONFIG_USB_OHCI_HCD_PLATFORM is not set
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_HCD_SSB is not set
# CONFIG_USB_HCD_TEST_MODE is not set
#
# USB Device Class drivers
#
CONFIG_USB_ACM=m
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set
#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#
#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_REALTEK is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_STORAGE_ENE_UB6250 is not set
#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USB_DWC3 is not set
# CONFIG_USB_CHIPIDEA is not set
#
# USB port drivers
#
# CONFIG_USB_SERIAL is not set
#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_EHSET_TEST_FIXTURE is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_YUREX is not set
# CONFIG_USB_EZUSB_FX2 is not set
# CONFIG_USB_HSIC_USB3503 is not set
#
# USB Physical Layer drivers
#
# CONFIG_USB_PHY is not set
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_AM335X_PHY_USB is not set
# CONFIG_SAMSUNG_USB2PHY is not set
# CONFIG_SAMSUNG_USB3PHY is not set
# CONFIG_USB_GPIO_VBUS is not set
# CONFIG_USB_ISP1301 is not set
# CONFIG_USB_RCAR_PHY is not set
# CONFIG_USB_ULPI is not set
# CONFIG_USB_GADGET is not set
CONFIG_MMC=m
# CONFIG_MMC_DEBUG is not set
# CONFIG_MMC_UNSAFE_RESUME is not set
# CONFIG_MMC_CLKGATE is not set
#
# MMC/SD/SDIO Card Drivers
#
CONFIG_MMC_BLOCK=m
CONFIG_MMC_BLOCK_MINORS=8
# CONFIG_MMC_BLOCK_BOUNCE is not set
# CONFIG_SDIO_UART is not set
# CONFIG_MMC_TEST is not set
#
# MMC/SD/SDIO Host Controller Drivers
#
# CONFIG_MMC_SDHCI is not set
# CONFIG_MMC_SDHCI_PXAV3 is not set
# CONFIG_MMC_SDHCI_PXAV2 is not set
CONFIG_MMC_ATMELMCI=m
# CONFIG_MMC_SPI is not set
# CONFIG_MMC_DW is not set
# CONFIG_MMC_VUB300 is not set
# CONFIG_MMC_USHC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_EDAC is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set
#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set
#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_DS3232 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_ISL12022 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF2127 is not set
# CONFIG_RTC_DRV_PCF8523 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_BQ32K is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8581 is not set
# CONFIG_RTC_DRV_RX8025 is not set
# CONFIG_RTC_DRV_EM3027 is not set
# CONFIG_RTC_DRV_RV3029C2 is not set
#
# SPI RTC drivers
#
# CONFIG_RTC_DRV_M41T93 is not set
# CONFIG_RTC_DRV_M41T94 is not set
# CONFIG_RTC_DRV_DS1305 is not set
# CONFIG_RTC_DRV_DS1390 is not set
# CONFIG_RTC_DRV_MAX6902 is not set
# CONFIG_RTC_DRV_R9701 is not set
# CONFIG_RTC_DRV_RS5C348 is not set
# CONFIG_RTC_DRV_DS3234 is not set
# CONFIG_RTC_DRV_PCF2123 is not set
# CONFIG_RTC_DRV_RX4581 is not set
#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_CMOS is not set
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set
# CONFIG_RTC_DRV_DS2404 is not set
#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_AT91RM9200=y
# CONFIG_RTC_DRV_AT91SAM9 is not set
# CONFIG_RTC_DRV_SNVS is not set
# CONFIG_RTC_DRV_MOXART is not set
#
# HID Sensor RTC drivers
#
CONFIG_DMADEVICES=y
# CONFIG_DMADEVICES_DEBUG is not set
#
# DMA Devices
#
# CONFIG_DW_DMAC_CORE is not set
# CONFIG_DW_DMAC is not set
CONFIG_AT_HDMAC=y
# CONFIG_TIMB_DMA is not set
CONFIG_DMA_ENGINE=y
CONFIG_DMA_OF=y
#
# DMA Clients
#
# CONFIG_NET_DMA is not set
# CONFIG_ASYNC_TX_DMA is not set
# CONFIG_DMATEST is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set
# CONFIG_VIRT_DRIVERS is not set
#
# Virtio drivers
#
# CONFIG_VIRTIO_MMIO is not set
#
# Microsoft Hyper-V guest support
#
# CONFIG_STAGING is not set
CONFIG_CLKDEV_LOOKUP=y
#
# Hardware Spinlock drivers
#
# CONFIG_MAILBOX is not set
# CONFIG_IOMMU_SUPPORT is not set
#
# Remoteproc drivers
#
# CONFIG_STE_MODEM_RPROC is not set
#
# Rpmsg drivers
#
# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
CONFIG_IIO=y
CONFIG_IIO_BUFFER=y
# CONFIG_IIO_BUFFER_CB is not set
CONFIG_IIO_KFIFO_BUF=y
CONFIG_IIO_TRIGGERED_BUFFER=y
CONFIG_IIO_TRIGGER=y
CONFIG_IIO_CONSUMERS_PER_TRIGGER=2
#
# Accelerometers
#
# CONFIG_BMA180 is not set
# CONFIG_IIO_ST_ACCEL_3AXIS is not set
# CONFIG_KXSD9 is not set
#
# Analog to digital converters
#
# CONFIG_AD7266 is not set
# CONFIG_AD7298 is not set
# CONFIG_AD7476 is not set
# CONFIG_AD7791 is not set
# CONFIG_AD7793 is not set
# CONFIG_AD7887 is not set
# CONFIG_AD7923 is not set
CONFIG_AT91_ADC=y
# CONFIG_EXYNOS_ADC is not set
# CONFIG_MAX1363 is not set
# CONFIG_MCP320X is not set
# CONFIG_NAU7802 is not set
# CONFIG_TI_ADC081C is not set
#
# Amplifiers
#
# CONFIG_AD8366 is not set
#
# Hid Sensor IIO Common
#
#
# Digital to analog converters
#
# CONFIG_AD5064 is not set
# CONFIG_AD5360 is not set
# CONFIG_AD5380 is not set
# CONFIG_AD5421 is not set
# CONFIG_AD5446 is not set
# CONFIG_AD5449 is not set
# CONFIG_AD5504 is not set
# CONFIG_AD5624R_SPI is not set
# CONFIG_AD5686 is not set
# CONFIG_AD5755 is not set
# CONFIG_AD5764 is not set
# CONFIG_AD5791 is not set
# CONFIG_AD7303 is not set
# CONFIG_MAX517 is not set
# CONFIG_MCP4725 is not set
#
# Frequency Synthesizers DDS/PLL
#
#
# Clock Generator/Distribution
#
# CONFIG_AD9523 is not set
#
# Phase-Locked Loop (PLL) frequency synthesizers
#
# CONFIG_ADF4350 is not set
#
# Digital gyroscope sensors
#
# CONFIG_ADIS16080 is not set
# CONFIG_ADIS16130 is not set
# CONFIG_ADIS16136 is not set
# CONFIG_ADIS16260 is not set
# CONFIG_ADXRS450 is not set
# CONFIG_IIO_ST_GYRO_3AXIS is not set
# CONFIG_ITG3200 is not set
#
# Inertial measurement units
#
# CONFIG_ADIS16400 is not set
# CONFIG_ADIS16480 is not set
# CONFIG_INV_MPU6050_IIO is not set
#
# Light sensors
#
# CONFIG_ADJD_S311 is not set
# CONFIG_APDS9300 is not set
# CONFIG_SENSORS_TSL2563 is not set
# CONFIG_VCNL4000 is not set
#
# Magnetometer sensors
#
# CONFIG_AK8975 is not set
# CONFIG_IIO_ST_MAGN_3AXIS is not set
#
# Triggers - standalone
#
# CONFIG_IIO_INTERRUPT_TRIGGER is not set
# CONFIG_IIO_SYSFS_TRIGGER is not set
#
# Pressure sensors
#
# CONFIG_IIO_ST_PRESS is not set
#
# Temperature sensors
#
# CONFIG_TMP006 is not set
# CONFIG_PWM is not set
CONFIG_IRQCHIP=y
# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set
# CONFIG_FMC is not set
#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
# CONFIG_EXT4_FS is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
# CONFIG_FS_POSIX_ACL is not set
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
# CONFIG_QUOTA is not set
# CONFIG_QUOTACTL is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set
#
# Caches
#
# CONFIG_FSCACHE is not set
#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set
#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=y
# CONFIG_MSDOS_FS is not set
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_TMPFS_XATTR is not set
# CONFIG_HUGETLB_PAGE is not set
# CONFIG_CONFIGFS_FS is not set
CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
CONFIG_JFFS2_FS=y
CONFIG_JFFS2_FS_DEBUG=0
CONFIG_JFFS2_FS_WRITEBUFFER=y
# CONFIG_JFFS2_FS_WBUF_VERIFY is not set
CONFIG_JFFS2_SUMMARY=y
# CONFIG_JFFS2_FS_XATTR is not set
# CONFIG_JFFS2_COMPRESSION_OPTIONS is not set
CONFIG_JFFS2_ZLIB=y
# CONFIG_JFFS2_LZO is not set
CONFIG_JFFS2_RTIME=y
# CONFIG_JFFS2_RUBIN is not set
CONFIG_UBIFS_FS=y
# CONFIG_UBIFS_FS_ADVANCED_COMPR is not set
CONFIG_UBIFS_FS_LZO=y
CONFIG_UBIFS_FS_ZLIB=y
# CONFIG_LOGFS is not set
# CONFIG_CRAMFS is not set
# CONFIG_SQUASHFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX6FS_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_PSTORE is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_F2FS_FS is not set
# CONFIG_NETWORK_FILESYSTEMS is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=y
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
CONFIG_NLS_CODEPAGE_850=y
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
# CONFIG_NLS_ASCII is not set
CONFIG_NLS_ISO8859_1=y
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_MAC_ROMAN is not set
# CONFIG_NLS_MAC_CELTIC is not set
# CONFIG_NLS_MAC_CENTEURO is not set
# CONFIG_NLS_MAC_CROATIAN is not set
# CONFIG_NLS_MAC_CYRILLIC is not set
# CONFIG_NLS_MAC_GAELIC is not set
# CONFIG_NLS_MAC_GREEK is not set
# CONFIG_NLS_MAC_ICELAND is not set
# CONFIG_NLS_MAC_INUIT is not set
# CONFIG_NLS_MAC_ROMANIAN is not set
# CONFIG_NLS_MAC_TURKISH is not set
# CONFIG_NLS_UTF8 is not set
#
# Kernel hacking
#
#
# printk and dmesg options
#
CONFIG_PRINTK_TIME=y
CONFIG_DEFAULT_MESSAGE_LOGLEVEL=1
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_DYNAMIC_DEBUG is not set
#
# Compile-time checks and compiler options
#
# CONFIG_DEBUG_INFO is not set
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=1024
CONFIG_STRIP_ASM_SYMS=y
# CONFIG_READABLE_ASM is not set
# CONFIG_UNUSED_SYMBOLS is not set
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
# CONFIG_DEBUG_SECTION_MISMATCH is not set
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# CONFIG_MAGIC_SYSRQ is not set
CONFIG_DEBUG_KERNEL=y
#
# Memory Debugging
#
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_SLUB_STATS is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_MEMORY_INIT is not set
#
# Debug Lockups and Hangs
#
# CONFIG_LOCKUP_DETECTOR is not set
# CONFIG_DETECT_HUNG_TASK is not set
CONFIG_PANIC_ON_OOPS=y
CONFIG_PANIC_ON_OOPS_VALUE=1
# CONFIG_SCHED_DEBUG is not set
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set
# CONFIG_DEBUG_PREEMPT is not set
#
# Lock Debugging (spinlocks, mutexes, etc...)
#
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_WW_MUTEX_SLOWPATH is not set
# CONFIG_DEBUG_LOCK_ALLOC is not set
# CONFIG_PROVE_LOCKING is not set
# CONFIG_LOCK_STAT is not set
# CONFIG_DEBUG_ATOMIC_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_WRITECOUNT is not set
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set
#
# RCU Debugging
#
# CONFIG_PROVE_RCU_DELAY is not set
# CONFIG_SPARSE_RCU_POINTER is not set
# CONFIG_RCU_TORTURE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=21
CONFIG_RCU_CPU_STALL_VERBOSE=y
# CONFIG_RCU_CPU_STALL_INFO is not set
# CONFIG_RCU_TRACE is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_TRACING_SUPPORT=y
# CONFIG_FTRACE is not set
#
# Runtime Testing
#
# CONFIG_LKDTM is not set
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_RBTREE_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_TEST_STRING_HELPERS is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_SAMPLES is not set
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_KGDB is not set
# CONFIG_STRICT_DEVMEM is not set
CONFIG_ARM_UNWIND=y
CONFIG_DEBUG_USER=y
CONFIG_DEBUG_LL=y
CONFIG_AT91_DEBUG_LL_DBGU1=y
# CONFIG_DEBUG_LL_UART_NONE is not set
# CONFIG_DEBUG_ICEDCC is not set
# CONFIG_DEBUG_SEMIHOSTING is not set
# CONFIG_DEBUG_LL_UART_8250 is not set
# CONFIG_DEBUG_LL_UART_PL01X is not set
CONFIG_DEBUG_LL_INCLUDE="mach/debug-macro.S"
# CONFIG_DEBUG_UART_PL01X is not set
# CONFIG_DEBUG_UART_8250 is not set
CONFIG_UNCOMPRESS_INCLUDE="mach/uncompress.h"
CONFIG_EARLY_PRINTK=y
# CONFIG_PID_IN_CONTEXTIDR is not set
#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=y
#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_USER is not set
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
# CONFIG_CRYPTO_GF128MUL is not set
# CONFIG_CRYPTO_NULL is not set
CONFIG_CRYPTO_WORKQUEUE=y
# CONFIG_CRYPTO_CRYPTD is not set
# CONFIG_CRYPTO_AUTHENC is not set
# CONFIG_CRYPTO_TEST is not set
#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_SEQIV is not set
#
# Block modes
#
CONFIG_CRYPTO_CBC=y
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
CONFIG_CRYPTO_ECB=y
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set
#
# Hash modes
#
# CONFIG_CRYPTO_CMAC is not set
# CONFIG_CRYPTO_HMAC is not set
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set
#
# Digest
#
# CONFIG_CRYPTO_CRC32C is not set
# CONFIG_CRYPTO_CRC32 is not set
# CONFIG_CRYPTO_CRCT10DIF is not set
# CONFIG_CRYPTO_GHASH is not set
# CONFIG_CRYPTO_MD4 is not set
# CONFIG_CRYPTO_MD5 is not set
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
CONFIG_CRYPTO_SHA1=y
# CONFIG_CRYPTO_SHA1_ARM is not set
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set
#
# Ciphers
#
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_AES_ARM is not set
# CONFIG_CRYPTO_ANUBIS is not set
CONFIG_CRYPTO_ARC4=y
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
CONFIG_CRYPTO_DES=y
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set
#
# Compression
#
CONFIG_CRYPTO_DEFLATE=y
# CONFIG_CRYPTO_ZLIB is not set
CONFIG_CRYPTO_LZO=y
# CONFIG_CRYPTO_LZ4 is not set
# CONFIG_CRYPTO_LZ4HC is not set
#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRYPTO_USER_API=m
CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_HW=y
CONFIG_CRYPTO_DEV_ATMEL_AES=y
CONFIG_CRYPTO_DEV_ATMEL_TDES=y
CONFIG_CRYPTO_DEV_ATMEL_SHA=y
# CONFIG_BINARY_PRINTF is not set
#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IO=y
CONFIG_CRC_CCITT=y
CONFIG_CRC16=y
# CONFIG_CRC_T10DIF is not set
CONFIG_CRC_ITU_T=m
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
# CONFIG_CRC8 is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
# CONFIG_XZ_DEC is not set
# CONFIG_XZ_DEC_BCJ is not set
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_DQL=y
CONFIG_NLATTR=y
CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
CONFIG_AVERAGE=y
# CONFIG_CORDIC is not set
# CONFIG_DDR is not set
# CONFIG_VIRTUALIZATION is not set
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [ANNOUNCE] 3.2.52-rt73
2013-11-16 19:46 [ANNOUNCE] 3.12.0-rt2 Sebastian Andrzej Siewior
2013-11-16 21:26 ` Pavel Vasilyev
2013-11-19 7:38 ` Sami Pietikäinen
@ 2013-11-21 20:44 ` Pavel Vasilyev
2013-11-22 14:56 ` Sebastian Andrzej Siewior
2013-11-22 21:11 ` [ANNOUNCE] 3.12.1-rt4 Sebastian Andrzej Siewior
3 siblings, 1 reply; 13+ messages in thread
From: Pavel Vasilyev @ 2013-11-21 20:44 UTC (permalink / raw)
Cc: linux-rt-users, LKML
[-- Attachment #1: Type: text/plain, Size: 1791 bytes --]
Fine, killed 3.12 now decided to finish 3.2.x. Good job guys!
Not configuration, not hardware, not software has not been updated or changed.
BUG: scheduling while atomic: irq/74-sata_nv/57/0x00000002
Modules linked in: cls_u32 sch_sfq sch_htb
Pid: 57, comm: irq/74-sata_nv Tainted: G O 3.2.52-rt73 #10
Call Trace:
[<ffffffff814bdef4>] ? __schedule+0x314/0x344
[<ffffffff81081b77>] ? task_blocks_on_rt_mutex+0x1e7/0x280
[<ffffffff814be741>] ? schedule+0x21/0xa0
[<ffffffff814c0d88>] ? rt_spin_lock_slowlock+0x128/0x280
[<ffffffff81204d01>] ? blk_update_request+0x11/0x450
[<ffffffff812a6976>] ? add_timer_randomness+0x86/0x1e0
[<ffffffff81206eac>] ? blk_end_request+0x9c/0xc0
[<ffffffff812c629a>] ? scsi_io_completion+0x9a/0x770
[<ffffffff8120d4ab>] ? blk_done_softirq+0x6b/0x80
[<ffffffff8104a805>] ? __do_softirq_common+0xa5/0x1d0
[<ffffffff81094ec0>] ? irq_thread_fn+0x50/0x50
[<ffffffff8104ad77>] ? local_bh_enable+0x127/0x150
[<ffffffff81094f08>] ? irq_forced_thread_fn+0x48/0x70
[<ffffffff81094d80>] ? irq_thread+0x150/0x240
[<ffffffff81094c30>] ? disable_irq_nosync+0x60/0x60
[<ffffffff81067150>] ? kthread+0x80/0x90
[<ffffffff814c3174>] ? kernel_thread_helper+0x4/0x10
[<ffffffff810670d0>] ? kthread_bind+0x80/0x80
[<ffffffff814c3170>] ? gs_change+0xb/0xb
BUG: scheduling while atomic: ksoftirqd/3/27/0x00000002
Pid: 3, comm: ksoftirqd/0 Tainted: G O 3.2.52-rt73 #10
...
BUG: scheduling while atomic: ksoftirqd/0/3/0x00000002
Pid: 27, comm: ksoftirqd/3 Tainted: G O 3.2.52-rt73 #10
....
BUG: scheduling while atomic: ksoftirqd/0/3/0x00000002
Pid: 27, comm: ksoftirqd/3 Tainted: G O 3.2.52-rt73 #10
--
Pavel.
[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 836 bytes --]
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [ANNOUNCE] 3.12.0-rt2
2013-11-19 7:38 ` Sami Pietikäinen
@ 2013-11-22 14:23 ` Sebastian Andrzej Siewior
2013-11-24 10:15 ` Michael Langfinger
` (2 more replies)
0 siblings, 3 replies; 13+ messages in thread
From: Sebastian Andrzej Siewior @ 2013-11-22 14:23 UTC (permalink / raw)
To: Sami Pietikäinen; +Cc: Michael Langfinger, linux-rt-users
* Sami Pietikäinen | 2013-11-19 07:38:27 [+0000]:
>> - tried to fix AT91's "already-free IRQ" and highres problem. Michael
>> Langfinge reported it initially and Sami Pietikäinen sent a patch for
>> the "already-free IRQ" problem. Based on another patch I looked at the
>> highres patch and tried to fix it. As I don't have the hardware, some
>> feedback would be nice.
>
>I did a quick test run with the 3.12.0-rt2 kernel. There are no "Trying to free already free IRQ 1" warnings anymore so that issue seems to be fixed. However, the system still hangs.
>
>CONFIG_HIGH_RES_TIMERS=y
>CONFIG_ATMEL_TCB_CLKSRC=y
>Hangs (or resets if the WD is enabled)
>
>CONFIG_HIGH_RES_TIMERS=y
>CONFIG_ATMEL_TCB_CLKSRC=n
>Boots ok.
>
>Now the kernel boots with the CONFIG_HIGH_RES_TIMERS enabled, but hangs when I enable the TCB clock source.
>Michael, if you have spare time, maybe you could also test these configs to see if you have similar behavior.
Okay. So in the working variant with TCB=n, do you have high res timers
available?
>BR,
>Sami Pietikäinen
Sebastian
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To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [ANNOUNCE] 3.2.52-rt73
2013-11-21 20:44 ` [ANNOUNCE] 3.2.52-rt73 Pavel Vasilyev
@ 2013-11-22 14:56 ` Sebastian Andrzej Siewior
0 siblings, 0 replies; 13+ messages in thread
From: Sebastian Andrzej Siewior @ 2013-11-22 14:56 UTC (permalink / raw)
To: Pavel Vasilyev; +Cc: linux-rt-users, LKML
* Pavel Vasilyev | 2013-11-22 00:44:37 [+0400]:
>
>Fine, killed 3.12 now decided to finish 3.2.x. Good job guys!
>
>Not configuration, not hardware, not software has not been updated or changed.
No I am a bit confused. On 16th you write:
|3.2.52-rt72 - work
and now you say that we killed v3.2. There was no v3.2.52-rt72 but
v3.2.51-rt72. So did -rt72 work and -rt73 does no more?
I saw your earlier screenshots and there is nothing I can say. I can't
tell based on the screenshot what is wrong. Sorry.
This time you managed to include a backtrace. Better! However would you
mind to enable frame pointers? The backtrace
>BUG: scheduling while atomic: irq/74-sata_nv/57/0x00000002
>Modules linked in: cls_u32 sch_sfq sch_htb
>Pid: 57, comm: irq/74-sata_nv Tainted: G O 3.2.52-rt73 #10
>Call Trace:
> [<ffffffff814bdef4>] ? __schedule+0x314/0x344
> [<ffffffff81081b77>] ? task_blocks_on_rt_mutex+0x1e7/0x280
> [<ffffffff814be741>] ? schedule+0x21/0xa0
> [<ffffffff814c0d88>] ? rt_spin_lock_slowlock+0x128/0x280
> [<ffffffff81204d01>] ? blk_update_request+0x11/0x450
> [<ffffffff812a6976>] ? add_timer_randomness+0x86/0x1e0
> [<ffffffff81206eac>] ? blk_end_request+0x9c/0xc0
> [<ffffffff812c629a>] ? scsi_io_completion+0x9a/0x770
> [<ffffffff8120d4ab>] ? blk_done_softirq+0x6b/0x80
> [<ffffffff8104a805>] ? __do_softirq_common+0xa5/0x1d0
> [<ffffffff81094ec0>] ? irq_thread_fn+0x50/0x50
> [<ffffffff8104ad77>] ? local_bh_enable+0x127/0x150
> [<ffffffff81094f08>] ? irq_forced_thread_fn+0x48/0x70
> [<ffffffff81094d80>] ? irq_thread+0x150/0x240
> [<ffffffff81094c30>] ? disable_irq_nosync+0x60/0x60
> [<ffffffff81067150>] ? kthread+0x80/0x90
> [<ffffffff814c3174>] ? kernel_thread_helper+0x4/0x10
> [<ffffffff810670d0>] ? kthread_bind+0x80/0x80
> [<ffffffff814c3170>] ? gs_change+0xb/0xb
shows now random functions which were on stack before the accident. What
happens is that something on the system tries to take a sleeping long
while beeing most likely in a preempt disable region. With lockdep on it
might even throw some additional information here.
Sebastian
^ permalink raw reply [flat|nested] 13+ messages in thread
* [ANNOUNCE] 3.12.1-rt4
2013-11-16 19:46 [ANNOUNCE] 3.12.0-rt2 Sebastian Andrzej Siewior
` (2 preceding siblings ...)
2013-11-21 20:44 ` [ANNOUNCE] 3.2.52-rt73 Pavel Vasilyev
@ 2013-11-22 21:11 ` Sebastian Andrzej Siewior
2013-12-01 22:25 ` Pavel Vasilyev
3 siblings, 1 reply; 13+ messages in thread
From: Sebastian Andrzej Siewior @ 2013-11-22 21:11 UTC (permalink / raw)
To: linux-rt-users; +Cc: LKML, Thomas Gleixner, rostedt, John Kacur
Dear RT folks!
I'm pleased to announce the v3.12.1-rt4 patch set.
Changes since v3.12.0-rt2
- rtmutex: the patch with the conversion to raw_spinlock_irq() of the
waiter lock has been replaced by a trylock attempt this keeps the
change a lot smaller. Initially suggested by Matt Cowell.
There is also a special unlock function so lockdep does not complain
on the in unlock path.
- A patch from Peter Zijlstra so lockdep sees the locking problem from
above.
- migrate_disable() does not invoke preempt_enable() +
preempt_disable() on recursion. An optimisation by Nicholas Mc Guire.
- rt_mutex_trylock() does not invoke migrate_disable() +
migrate_enable() in the case where it did not get the lock. An
optimisation by Nicholas Mc Guire.
Known issues:
- bcache is disabled.
- an ancient race (since we got sleeping spinlocks) where the
TASK_TRACED state is temporary replaced while waiting on a rw
lock and the task can't be traced.
The delta patch against v3.12.1-rt3 is appended below and can be found
here:
https://www.kernel.org/pub/linux/kernel/projects/rt/3.12/incr/patch-3.12.1-rt3-rt4.patch.xz
The RT patch against 3.12.1 can be found here:
https://www.kernel.org/pub/linux/kernel/projects/rt/3.12/patch-3.12.1-rt4.patch.xz
The split quilt queue is available at:
https://www.kernel.org/pub/linux/kernel/projects/rt/3.12/patches-3.12.1-rt4.tar.xz
Sebastian
diff --git a/include/linux/spinlock_rt.h b/include/linux/spinlock_rt.h
index 0618387..b3c504b 100644
--- a/include/linux/spinlock_rt.h
+++ b/include/linux/spinlock_rt.h
@@ -22,6 +22,7 @@ extern void __lockfunc rt_spin_lock(spinlock_t *lock);
extern unsigned long __lockfunc rt_spin_lock_trace_flags(spinlock_t *lock);
extern void __lockfunc rt_spin_lock_nested(spinlock_t *lock, int subclass);
extern void __lockfunc rt_spin_unlock(spinlock_t *lock);
+extern void __lockfunc rt_spin_unlock_after_trylock_in_irq(spinlock_t *lock);
extern void __lockfunc rt_spin_unlock_wait(spinlock_t *lock);
extern int __lockfunc rt_spin_trylock_irqsave(spinlock_t *lock, unsigned long *flags);
extern int __lockfunc rt_spin_trylock_bh(spinlock_t *lock);
diff --git a/kernel/futex.c b/kernel/futex.c
index 404d0bd..0ef419d 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -891,7 +891,7 @@ static int wake_futex_pi(u32 __user *uaddr, u32 uval, struct futex_q *this)
if (pi_state->owner != current)
return -EINVAL;
- raw_spin_lock_irq(&pi_state->pi_mutex.wait_lock);
+ raw_spin_lock(&pi_state->pi_mutex.wait_lock);
new_owner = rt_mutex_next_owner(&pi_state->pi_mutex);
/*
@@ -917,21 +917,21 @@ static int wake_futex_pi(u32 __user *uaddr, u32 uval, struct futex_q *this)
else if (curval != uval)
ret = -EINVAL;
if (ret) {
- raw_spin_unlock_irq(&pi_state->pi_mutex.wait_lock);
+ raw_spin_unlock(&pi_state->pi_mutex.wait_lock);
return ret;
}
}
- raw_spin_lock(&pi_state->owner->pi_lock);
+ raw_spin_lock_irq(&pi_state->owner->pi_lock);
WARN_ON(list_empty(&pi_state->list));
list_del_init(&pi_state->list);
- raw_spin_unlock(&pi_state->owner->pi_lock);
+ raw_spin_unlock_irq(&pi_state->owner->pi_lock);
- raw_spin_lock(&new_owner->pi_lock);
+ raw_spin_lock_irq(&new_owner->pi_lock);
WARN_ON(!list_empty(&pi_state->list));
list_add(&pi_state->list, &new_owner->pi_state_list);
pi_state->owner = new_owner;
- raw_spin_unlock(&new_owner->pi_lock);
+ raw_spin_unlock_irq(&new_owner->pi_lock);
raw_spin_unlock(&pi_state->pi_mutex.wait_lock);
rt_mutex_unlock(&pi_state->pi_mutex);
@@ -1762,11 +1762,11 @@ static int fixup_owner(u32 __user *uaddr, struct futex_q *q, int locked)
* we returned due to timeout or signal without taking the
* rt_mutex. Too late.
*/
- raw_spin_lock_irq(&q->pi_state->pi_mutex.wait_lock);
+ raw_spin_lock(&q->pi_state->pi_mutex.wait_lock);
owner = rt_mutex_owner(&q->pi_state->pi_mutex);
if (!owner)
owner = rt_mutex_next_owner(&q->pi_state->pi_mutex);
- raw_spin_unlock_irq(&q->pi_state->pi_mutex.wait_lock);
+ raw_spin_unlock(&q->pi_state->pi_mutex.wait_lock);
ret = fixup_pi_state_owner(uaddr, q, owner);
goto out;
}
diff --git a/kernel/rt.c b/kernel/rt.c
index 433ae42..4b2c4a9 100644
--- a/kernel/rt.c
+++ b/kernel/rt.c
@@ -182,11 +182,10 @@ int __lockfunc rt_write_trylock(rwlock_t *rwlock)
{
int ret = rt_mutex_trylock(&rwlock->lock);
- migrate_disable();
- if (ret)
+ if (ret) {
rwlock_acquire(&rwlock->dep_map, 0, 1, _RET_IP_);
- else
- migrate_enable();
+ migrate_disable();
+ }
return ret;
}
diff --git a/kernel/rtmutex.c b/kernel/rtmutex.c
index c2f3f63..4e9691f 100644
--- a/kernel/rtmutex.c
+++ b/kernel/rtmutex.c
@@ -298,7 +298,7 @@ static int rt_mutex_adjust_prio_chain(struct task_struct *task,
plist_add(&waiter->list_entry, &lock->wait_list);
/* Release the task */
- raw_spin_unlock(&task->pi_lock);
+ raw_spin_unlock_irqrestore(&task->pi_lock, flags);
if (!rt_mutex_owner(lock)) {
struct rt_mutex_waiter *lock_top_waiter;
@@ -309,7 +309,7 @@ static int rt_mutex_adjust_prio_chain(struct task_struct *task,
lock_top_waiter = rt_mutex_top_waiter(lock);
if (top_waiter != lock_top_waiter)
rt_mutex_wake_waiter(lock_top_waiter);
- raw_spin_unlock_irqrestore(&lock->wait_lock, flags);
+ raw_spin_unlock(&lock->wait_lock);
goto out_put_task;
}
put_task_struct(task);
@@ -317,7 +317,7 @@ static int rt_mutex_adjust_prio_chain(struct task_struct *task,
/* Grab the next task */
task = rt_mutex_owner(lock);
get_task_struct(task);
- raw_spin_lock(&task->pi_lock);
+ raw_spin_lock_irqsave(&task->pi_lock, flags);
if (waiter == rt_mutex_top_waiter(lock)) {
/* Boost the owner */
@@ -335,10 +335,10 @@ static int rt_mutex_adjust_prio_chain(struct task_struct *task,
__rt_mutex_adjust_prio(task);
}
- raw_spin_unlock(&task->pi_lock);
+ raw_spin_unlock_irqrestore(&task->pi_lock, flags);
top_waiter = rt_mutex_top_waiter(lock);
- raw_spin_unlock_irqrestore(&lock->wait_lock, flags);
+ raw_spin_unlock(&lock->wait_lock);
if (!detect_deadlock && waiter != top_waiter)
goto out_put_task;
@@ -425,9 +425,10 @@ __try_to_take_rt_mutex(struct rt_mutex *lock, struct task_struct *task,
/* We got the lock. */
if (waiter || rt_mutex_has_waiters(lock)) {
+ unsigned long flags;
struct rt_mutex_waiter *top;
- raw_spin_lock(&task->pi_lock);
+ raw_spin_lock_irqsave(&task->pi_lock, flags);
/* remove the queued waiter. */
if (waiter) {
@@ -444,7 +445,7 @@ __try_to_take_rt_mutex(struct rt_mutex *lock, struct task_struct *task,
top->pi_list_entry.prio = top->list_entry.prio;
plist_add(&top->pi_list_entry, &task->pi_waiters);
}
- raw_spin_unlock(&task->pi_lock);
+ raw_spin_unlock_irqrestore(&task->pi_lock, flags);
}
debug_rt_mutex_lock(lock);
@@ -477,9 +478,10 @@ static int task_blocks_on_rt_mutex(struct rt_mutex *lock,
{
struct task_struct *owner = rt_mutex_owner(lock);
struct rt_mutex_waiter *top_waiter = waiter;
+ unsigned long flags;
int chain_walk = 0, res;
- raw_spin_lock(&task->pi_lock);
+ raw_spin_lock_irqsave(&task->pi_lock, flags);
/*
* In the case of futex requeue PI, this will be a proxy
@@ -491,7 +493,7 @@ static int task_blocks_on_rt_mutex(struct rt_mutex *lock,
* the task if PI_WAKEUP_INPROGRESS is set.
*/
if (task != current && task->pi_blocked_on == PI_WAKEUP_INPROGRESS) {
- raw_spin_unlock(&task->pi_lock);
+ raw_spin_unlock_irqrestore(&task->pi_lock, flags);
return -EAGAIN;
}
@@ -510,20 +512,20 @@ static int task_blocks_on_rt_mutex(struct rt_mutex *lock,
task->pi_blocked_on = waiter;
- raw_spin_unlock(&task->pi_lock);
+ raw_spin_unlock_irqrestore(&task->pi_lock, flags);
if (!owner)
return 0;
if (waiter == rt_mutex_top_waiter(lock)) {
- raw_spin_lock(&owner->pi_lock);
+ raw_spin_lock_irqsave(&owner->pi_lock, flags);
plist_del(&top_waiter->pi_list_entry, &owner->pi_waiters);
plist_add(&waiter->pi_list_entry, &owner->pi_waiters);
__rt_mutex_adjust_prio(owner);
if (rt_mutex_real_waiter(owner->pi_blocked_on))
chain_walk = 1;
- raw_spin_unlock(&owner->pi_lock);
+ raw_spin_unlock_irqrestore(&owner->pi_lock, flags);
}
else if (debug_rt_mutex_detect_deadlock(waiter, detect_deadlock))
chain_walk = 1;
@@ -538,12 +540,12 @@ static int task_blocks_on_rt_mutex(struct rt_mutex *lock,
*/
get_task_struct(owner);
- raw_spin_unlock_irq(&lock->wait_lock);
+ raw_spin_unlock(&lock->wait_lock);
res = rt_mutex_adjust_prio_chain(owner, detect_deadlock, lock, waiter,
task);
- raw_spin_lock_irq(&lock->wait_lock);
+ raw_spin_lock(&lock->wait_lock);
return res;
}
@@ -558,8 +560,9 @@ static int task_blocks_on_rt_mutex(struct rt_mutex *lock,
static void wakeup_next_waiter(struct rt_mutex *lock)
{
struct rt_mutex_waiter *waiter;
+ unsigned long flags;
- raw_spin_lock(¤t->pi_lock);
+ raw_spin_lock_irqsave(¤t->pi_lock, flags);
waiter = rt_mutex_top_waiter(lock);
@@ -573,7 +576,7 @@ static void wakeup_next_waiter(struct rt_mutex *lock)
rt_mutex_set_owner(lock, NULL);
- raw_spin_unlock(¤t->pi_lock);
+ raw_spin_unlock_irqrestore(¤t->pi_lock, flags);
rt_mutex_wake_waiter(waiter);
}
@@ -589,19 +592,20 @@ static void remove_waiter(struct rt_mutex *lock,
{
int first = (waiter == rt_mutex_top_waiter(lock));
struct task_struct *owner = rt_mutex_owner(lock);
+ unsigned long flags;
int chain_walk = 0;
- raw_spin_lock(¤t->pi_lock);
+ raw_spin_lock_irqsave(¤t->pi_lock, flags);
plist_del(&waiter->list_entry, &lock->wait_list);
current->pi_blocked_on = NULL;
- raw_spin_unlock(¤t->pi_lock);
+ raw_spin_unlock_irqrestore(¤t->pi_lock, flags);
if (!owner)
return;
if (first) {
- raw_spin_lock(&owner->pi_lock);
+ raw_spin_lock_irqsave(&owner->pi_lock, flags);
plist_del(&waiter->pi_list_entry, &owner->pi_waiters);
@@ -616,7 +620,7 @@ static void remove_waiter(struct rt_mutex *lock,
if (rt_mutex_real_waiter(owner->pi_blocked_on))
chain_walk = 1;
- raw_spin_unlock(&owner->pi_lock);
+ raw_spin_unlock_irqrestore(&owner->pi_lock, flags);
}
WARN_ON(!plist_node_empty(&waiter->pi_list_entry));
@@ -627,11 +631,11 @@ static void remove_waiter(struct rt_mutex *lock,
/* gets dropped in rt_mutex_adjust_prio_chain()! */
get_task_struct(owner);
- raw_spin_unlock_irq(&lock->wait_lock);
+ raw_spin_unlock(&lock->wait_lock);
rt_mutex_adjust_prio_chain(owner, 0, lock, NULL, current);
- raw_spin_lock_irq(&lock->wait_lock);
+ raw_spin_lock(&lock->wait_lock);
}
/*
@@ -719,6 +723,9 @@ static int adaptive_wait(struct rt_mutex *lock,
}
#endif
+# define pi_lock(lock) raw_spin_lock_irq(lock)
+# define pi_unlock(lock) raw_spin_unlock_irq(lock)
+
/*
* Slow path lock function spin_lock style: this variant is very
* careful not to miss any non-lock wakeups.
@@ -730,22 +737,19 @@ static void noinline __sched rt_spin_lock_slowlock(struct rt_mutex *lock)
{
struct task_struct *lock_owner, *self = current;
struct rt_mutex_waiter waiter, *top_waiter;
- unsigned long flags;
int ret;
rt_mutex_init_waiter(&waiter, true);
- raw_local_save_flags(flags);
- raw_spin_lock_irq(&lock->wait_lock);
+ raw_spin_lock(&lock->wait_lock);
init_lists(lock);
if (__try_to_take_rt_mutex(lock, self, NULL, STEAL_LATERAL)) {
- raw_spin_unlock_irqrestore(&lock->wait_lock, flags);
+ raw_spin_unlock(&lock->wait_lock);
return;
}
BUG_ON(rt_mutex_owner(lock) == self);
- BUG_ON(arch_irqs_disabled_flags(flags));
/*
* We save whatever state the task is in and we'll restore it
@@ -753,10 +757,10 @@ static void noinline __sched rt_spin_lock_slowlock(struct rt_mutex *lock)
* as well. We are serialized via pi_lock against wakeups. See
* try_to_wake_up().
*/
- raw_spin_lock(&self->pi_lock);
+ pi_lock(&self->pi_lock);
self->saved_state = self->state;
__set_current_state(TASK_UNINTERRUPTIBLE);
- raw_spin_unlock(&self->pi_lock);
+ pi_unlock(&self->pi_lock);
ret = task_blocks_on_rt_mutex(lock, &waiter, self, 0);
BUG_ON(ret);
@@ -769,18 +773,18 @@ static void noinline __sched rt_spin_lock_slowlock(struct rt_mutex *lock)
top_waiter = rt_mutex_top_waiter(lock);
lock_owner = rt_mutex_owner(lock);
- raw_spin_unlock_irq(&lock->wait_lock);
+ raw_spin_unlock(&lock->wait_lock);
debug_rt_mutex_print_deadlock(&waiter);
if (top_waiter != &waiter || adaptive_wait(lock, lock_owner))
schedule_rt_mutex(lock);
- raw_spin_lock_irq(&lock->wait_lock);
+ raw_spin_lock(&lock->wait_lock);
- raw_spin_lock(&self->pi_lock);
+ pi_lock(&self->pi_lock);
__set_current_state(TASK_UNINTERRUPTIBLE);
- raw_spin_unlock(&self->pi_lock);
+ pi_unlock(&self->pi_lock);
}
/*
@@ -790,10 +794,10 @@ static void noinline __sched rt_spin_lock_slowlock(struct rt_mutex *lock)
* happened while we were blocked. Clear saved_state so
* try_to_wakeup() does not get confused.
*/
- raw_spin_lock(&self->pi_lock);
+ pi_lock(&self->pi_lock);
__set_current_state(self->saved_state);
self->saved_state = TASK_RUNNING;
- raw_spin_unlock(&self->pi_lock);
+ pi_unlock(&self->pi_lock);
/*
* try_to_take_rt_mutex() sets the waiter bit
@@ -804,7 +808,7 @@ static void noinline __sched rt_spin_lock_slowlock(struct rt_mutex *lock)
BUG_ON(rt_mutex_has_waiters(lock) && &waiter == rt_mutex_top_waiter(lock));
BUG_ON(!plist_node_empty(&waiter.list_entry));
- raw_spin_unlock_irq(&lock->wait_lock);
+ raw_spin_unlock(&lock->wait_lock);
debug_rt_mutex_free_waiter(&waiter);
}
@@ -812,30 +816,43 @@ static void noinline __sched rt_spin_lock_slowlock(struct rt_mutex *lock)
/*
* Slow path to release a rt_mutex spin_lock style
*/
-static void noinline __sched rt_spin_lock_slowunlock(struct rt_mutex *lock)
+static void __sched __rt_spin_lock_slowunlock(struct rt_mutex *lock)
{
- unsigned long flags;
-
- raw_spin_lock_irqsave(&lock->wait_lock, flags);
-
debug_rt_mutex_unlock(lock);
rt_mutex_deadlock_account_unlock(current);
if (!rt_mutex_has_waiters(lock)) {
lock->owner = NULL;
- raw_spin_unlock_irqrestore(&lock->wait_lock, flags);
+ raw_spin_unlock(&lock->wait_lock);
return;
}
wakeup_next_waiter(lock);
- raw_spin_unlock_irqrestore(&lock->wait_lock, flags);
+ raw_spin_unlock(&lock->wait_lock);
/* Undo pi boosting.when necessary */
rt_mutex_adjust_prio(current);
}
+static void noinline __sched rt_spin_lock_slowunlock(struct rt_mutex *lock)
+{
+ raw_spin_lock(&lock->wait_lock);
+ __rt_spin_lock_slowunlock(lock);
+}
+
+static void noinline __sched rt_spin_lock_slowunlock_hirq(struct rt_mutex *lock)
+{
+ int ret;
+
+ do {
+ ret = raw_spin_trylock(&lock->wait_lock);
+ } while (!ret);
+
+ __rt_spin_lock_slowunlock(lock);
+}
+
void __lockfunc rt_spin_lock(spinlock_t *lock)
{
rt_spin_lock_fastlock(&lock->lock, rt_spin_lock_slowlock);
@@ -866,6 +883,13 @@ void __lockfunc rt_spin_unlock(spinlock_t *lock)
}
EXPORT_SYMBOL(rt_spin_unlock);
+void __lockfunc rt_spin_unlock_after_trylock_in_irq(spinlock_t *lock)
+{
+ /* NOTE: we always pass in '1' for nested, for simplicity */
+ spin_release(&lock->dep_map, 1, _RET_IP_);
+ rt_spin_lock_fastunlock(&lock->lock, rt_spin_lock_slowunlock_hirq);
+}
+
void __lockfunc __rt_spin_unlock(struct rt_mutex *lock)
{
rt_spin_lock_fastunlock(lock, rt_spin_lock_slowunlock);
@@ -1030,13 +1054,13 @@ __rt_mutex_slowlock(struct rt_mutex *lock, int state,
break;
}
- raw_spin_unlock_irq(&lock->wait_lock);
+ raw_spin_unlock(&lock->wait_lock);
debug_rt_mutex_print_deadlock(waiter);
schedule_rt_mutex(lock);
- raw_spin_lock_irq(&lock->wait_lock);
+ raw_spin_lock(&lock->wait_lock);
set_current_state(state);
}
@@ -1128,23 +1152,20 @@ rt_mutex_slowlock(struct rt_mutex *lock, int state,
int detect_deadlock, struct ww_acquire_ctx *ww_ctx)
{
struct rt_mutex_waiter waiter;
- unsigned long flags;
int ret = 0;
rt_mutex_init_waiter(&waiter, false);
- raw_local_save_flags(flags);
- raw_spin_lock_irq(&lock->wait_lock);
+ raw_spin_lock(&lock->wait_lock);
init_lists(lock);
/* Try to acquire the lock again: */
if (try_to_take_rt_mutex(lock, current, NULL)) {
if (ww_ctx)
ww_mutex_account_lock(lock, ww_ctx);
- raw_spin_unlock_irqrestore(&lock->wait_lock, flags);
+ raw_spin_unlock(&lock->wait_lock);
return 0;
}
- BUG_ON(arch_irqs_disabled_flags(flags));
set_current_state(state);
@@ -1173,7 +1194,7 @@ rt_mutex_slowlock(struct rt_mutex *lock, int state,
*/
fixup_rt_mutex_waiters(lock);
- raw_spin_unlock_irq(&lock->wait_lock);
+ raw_spin_unlock(&lock->wait_lock);
/* Remove pending timer: */
if (unlikely(timeout))
@@ -1190,10 +1211,10 @@ rt_mutex_slowlock(struct rt_mutex *lock, int state,
static inline int
rt_mutex_slowtrylock(struct rt_mutex *lock)
{
- unsigned long flags;
int ret = 0;
- raw_spin_lock_irqsave(&lock->wait_lock, flags);
+ if (!raw_spin_trylock(&lock->wait_lock))
+ return ret;
init_lists(lock);
if (likely(rt_mutex_owner(lock) != current)) {
@@ -1206,7 +1227,7 @@ rt_mutex_slowtrylock(struct rt_mutex *lock)
fixup_rt_mutex_waiters(lock);
}
- raw_spin_unlock_irqrestore(&lock->wait_lock, flags);
+ raw_spin_unlock(&lock->wait_lock);
return ret;
}
@@ -1217,9 +1238,7 @@ rt_mutex_slowtrylock(struct rt_mutex *lock)
static void __sched
rt_mutex_slowunlock(struct rt_mutex *lock)
{
- unsigned long flags;
-
- raw_spin_lock_irqsave(&lock->wait_lock, flags);
+ raw_spin_lock(&lock->wait_lock);
debug_rt_mutex_unlock(lock);
@@ -1227,13 +1246,13 @@ rt_mutex_slowunlock(struct rt_mutex *lock)
if (!rt_mutex_has_waiters(lock)) {
lock->owner = NULL;
- raw_spin_unlock_irqrestore(&lock->wait_lock, flags);
+ raw_spin_unlock(&lock->wait_lock);
return;
}
wakeup_next_waiter(lock);
- raw_spin_unlock_irqrestore(&lock->wait_lock, flags);
+ raw_spin_unlock(&lock->wait_lock);
/* Undo pi boosting if necessary: */
rt_mutex_adjust_prio(current);
@@ -1493,10 +1512,10 @@ int rt_mutex_start_proxy_lock(struct rt_mutex *lock,
{
int ret;
- raw_spin_lock_irq(&lock->wait_lock);
+ raw_spin_lock(&lock->wait_lock);
if (try_to_take_rt_mutex(lock, task, NULL)) {
- raw_spin_unlock_irq(&lock->wait_lock);
+ raw_spin_unlock(&lock->wait_lock);
return 1;
}
@@ -1519,17 +1538,18 @@ int rt_mutex_start_proxy_lock(struct rt_mutex *lock,
* PI_REQUEUE_INPROGRESS, so that if the task is waking up
* it will know that we are in the process of requeuing it.
*/
- raw_spin_lock(&task->pi_lock);
+ raw_spin_lock_irq(&task->pi_lock);
if (task->pi_blocked_on) {
- raw_spin_unlock(&task->pi_lock);
- raw_spin_unlock_irq(&lock->wait_lock);
+ raw_spin_unlock_irq(&task->pi_lock);
+ raw_spin_unlock(&lock->wait_lock);
return -EAGAIN;
}
task->pi_blocked_on = PI_REQUEUE_INPROGRESS;
- raw_spin_unlock(&task->pi_lock);
+ raw_spin_unlock_irq(&task->pi_lock);
#endif
ret = task_blocks_on_rt_mutex(lock, waiter, task, detect_deadlock);
+
if (ret && !rt_mutex_owner(lock)) {
/*
* Reset the return value. We might have
@@ -1543,7 +1563,7 @@ int rt_mutex_start_proxy_lock(struct rt_mutex *lock,
if (unlikely(ret))
remove_waiter(lock, waiter);
- raw_spin_unlock_irq(&lock->wait_lock);
+ raw_spin_unlock(&lock->wait_lock);
debug_rt_mutex_print_deadlock(waiter);
@@ -1593,11 +1613,12 @@ int rt_mutex_finish_proxy_lock(struct rt_mutex *lock,
{
int ret;
- raw_spin_lock_irq(&lock->wait_lock);
+ raw_spin_lock(&lock->wait_lock);
set_current_state(TASK_INTERRUPTIBLE);
ret = __rt_mutex_slowlock(lock, TASK_INTERRUPTIBLE, to, waiter, NULL);
+
set_current_state(TASK_RUNNING);
if (unlikely(ret))
@@ -1609,7 +1630,7 @@ int rt_mutex_finish_proxy_lock(struct rt_mutex *lock,
*/
fixup_rt_mutex_waiters(lock);
- raw_spin_unlock_irq(&lock->wait_lock);
+ raw_spin_unlock(&lock->wait_lock);
return ret;
}
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index a7fafc28..22fa2e2 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2418,13 +2418,12 @@ void migrate_disable(void)
}
#endif
- preempt_disable();
if (p->migrate_disable) {
p->migrate_disable++;
- preempt_enable();
return;
}
+ preempt_disable();
preempt_lazy_disable();
pin_current_cpu();
p->migrate_disable = 1;
@@ -2454,13 +2453,12 @@ void migrate_enable(void)
#endif
WARN_ON_ONCE(p->migrate_disable <= 0);
- preempt_disable();
if (migrate_disable_count(p) > 1) {
p->migrate_disable--;
- preempt_enable();
return;
}
+ preempt_disable();
if (unlikely(migrate_disabled_updated(p))) {
/*
* Undo whatever update_migrate_disable() did, also see there
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 6c99698..9a7268f 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -354,13 +354,51 @@ EXPORT_SYMBOL(local_bh_enable_ip);
#define MAX_SOFTIRQ_TIME msecs_to_jiffies(2)
#define MAX_SOFTIRQ_RESTART 10
+#ifdef CONFIG_TRACE_IRQFLAGS
+/*
+ * Convoluted means of passing __do_softirq() a message through the various
+ * architecture execute_on_stack() bits.
+ *
+ * When we run softirqs from irq_exit() and thus on the hardirq stack we need
+ * to keep the lockdep irq context tracking as tight as possible in order to
+ * not miss-qualify lock contexts and miss possible deadlocks.
+ */
+static DEFINE_PER_CPU(int, softirq_from_hardirq);
+
+static inline void lockdep_softirq_from_hardirq(void)
+{
+ this_cpu_write(softirq_from_hardirq, 1);
+}
+
+static inline void lockdep_softirq_start(void)
+{
+ if (this_cpu_read(softirq_from_hardirq))
+ trace_hardirq_exit();
+ lockdep_softirq_enter();
+}
+
+static inline void lockdep_softirq_end(void)
+{
+ lockdep_softirq_exit();
+ if (this_cpu_read(softirq_from_hardirq)) {
+ this_cpu_write(softirq_from_hardirq, 0);
+ trace_hardirq_enter();
+ }
+}
+
+#else
+static inline void lockdep_softirq_from_hardirq(void) { }
+static inline void lockdep_softirq_start(void) { }
+static inline void lockdep_softirq_end(void) { }
+#endif
+
asmlinkage void __do_softirq(void)
{
- __u32 pending;
unsigned long end = jiffies + MAX_SOFTIRQ_TIME;
- int cpu;
unsigned long old_flags = current->flags;
int max_restart = MAX_SOFTIRQ_RESTART;
+ __u32 pending;
+ int cpu;
/*
* Mask out PF_MEMALLOC s current task context is borrowed for the
@@ -373,7 +411,7 @@ asmlinkage void __do_softirq(void)
account_irq_enter_time(current);
__local_bh_disable(_RET_IP_, SOFTIRQ_OFFSET);
- lockdep_softirq_enter();
+ lockdep_softirq_start();
cpu = smp_processor_id();
restart:
@@ -391,8 +429,7 @@ asmlinkage void __do_softirq(void)
wakeup_softirqd();
}
- lockdep_softirq_exit();
-
+ lockdep_softirq_end();
account_irq_exit_time(current);
__local_bh_enable(SOFTIRQ_OFFSET);
tsk_restore_flags(current, old_flags, PF_MEMALLOC);
@@ -698,6 +735,7 @@ static inline void invoke_softirq(void)
{
#ifndef CONFIG_PREEMPT_RT_FULL
if (!force_irqthreads) {
+ lockdep_softirq_from_hardirq();
/*
* We can safely execute softirq on the current stack if
* it is the irq stack, because it should be near empty
@@ -746,13 +784,13 @@ void irq_exit(void)
#endif
account_irq_exit_time(current);
- trace_hardirq_exit();
sub_preempt_count(HARDIRQ_OFFSET);
if (!in_interrupt() && local_softirq_pending())
invoke_softirq();
tick_irq_exit();
rcu_irq_exit();
+ trace_hardirq_exit(); /* must be last! */
}
void raise_softirq(unsigned int nr)
diff --git a/kernel/timer.c b/kernel/timer.c
index fa4a92a..b06c647 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -1400,7 +1400,7 @@ unsigned long get_next_timer_interrupt(unsigned long now)
expires = base->next_timer;
}
#ifdef CONFIG_PREEMPT_RT_FULL
- rt_spin_unlock(&base->lock);
+ rt_spin_unlock_after_trylock_in_irq(&base->lock);
#else
spin_unlock(&base->lock);
#endif
diff --git a/localversion-rt b/localversion-rt
index 1445cd6..ad3da1b 100644
--- a/localversion-rt
+++ b/localversion-rt
@@ -1 +1 @@
--rt3
+-rt4
^ permalink raw reply related [flat|nested] 13+ messages in thread
* Re: [ANNOUNCE] 3.12.0-rt2
2013-11-22 14:23 ` Sebastian Andrzej Siewior
@ 2013-11-24 10:15 ` Michael Langfinger
2013-11-25 8:23 ` Sami Pietikäinen
2013-11-25 13:21 ` Sami Pietikäinen
2 siblings, 0 replies; 13+ messages in thread
From: Michael Langfinger @ 2013-11-24 10:15 UTC (permalink / raw)
To: Sebastian Andrzej Siewior; +Cc: Sami Pietikäinen, linux-rt-users
Hello Sami, hello Sebastian,
unfortunately I don't have access to the AT91 at the moment, so I can't
test the config myself. But I built the kernel 3.12.0-rt2 and gave my
former colleague with whom I worked on the AT91 a copy of it. I also
updated the build scripts that we used for our specific setup with the
AT91, so he will be able to build the kernel himself and test the two
config options Sami posted. I will tell you about his results as soon as
I hear from him!
Kind regards,
Michael Langfinger
On Fri, 22 Nov 2013 15:23:45 +0100, Sebastian Andrzej Siewior
<bigeasy@linutronix.de> wrote:
> * Sami Pietikäinen | 2013-11-19 07:38:27 [+0000]:
>
>>> - tried to fix AT91's "already-free IRQ" and highres problem.
>>> Michael
>>> Langfinge reported it initially and Sami Pietikäinen sent a patch
>>> for
>>> the "already-free IRQ" problem. Based on another patch I looked
>>> at the
>>> highres patch and tried to fix it. As I don't have the hardware,
>>> some
>>> feedback would be nice.
>>
>>I did a quick test run with the 3.12.0-rt2 kernel. There are no
>> "Trying to free already free IRQ 1" warnings anymore so that issue
>> seems to be fixed. However, the system still hangs.
>>
>>CONFIG_HIGH_RES_TIMERS=y
>>CONFIG_ATMEL_TCB_CLKSRC=y
>>Hangs (or resets if the WD is enabled)
>>
>>CONFIG_HIGH_RES_TIMERS=y
>>CONFIG_ATMEL_TCB_CLKSRC=n
>>Boots ok.
>>
>>Now the kernel boots with the CONFIG_HIGH_RES_TIMERS enabled, but
>> hangs when I enable the TCB clock source.
>>Michael, if you have spare time, maybe you could also test these
>> configs to see if you have similar behavior.
> Okay. So in the working variant with TCB=n, do you have high res
> timers
> available?
>
>>BR,
>>Sami Pietikäinen
>
> Sebastian
> --
> To unsubscribe from this list: send the line "unsubscribe
> linux-rt-users" in
> the body of a message to majordomo@vger.kernel.org
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^ permalink raw reply [flat|nested] 13+ messages in thread
* RE: [ANNOUNCE] 3.12.0-rt2
2013-11-22 14:23 ` Sebastian Andrzej Siewior
2013-11-24 10:15 ` Michael Langfinger
@ 2013-11-25 8:23 ` Sami Pietikäinen
2013-11-25 13:21 ` Sami Pietikäinen
2 siblings, 0 replies; 13+ messages in thread
From: Sami Pietikäinen @ 2013-11-25 8:23 UTC (permalink / raw)
To: Sebastian Andrzej Siewior; +Cc: Michael Langfinger, linux-rt-users
>>CONFIG_HIGH_RES_TIMERS=y
>>CONFIG_ATMEL_TCB_CLKSRC=y
>>Hangs (or resets if the WD is enabled)
>>
>>CONFIG_HIGH_RES_TIMERS=y
>>CONFIG_ATMEL_TCB_CLKSRC=n
>>Boots ok.
>>
>>Now the kernel boots with the CONFIG_HIGH_RES_TIMERS enabled, but hangs when I enable the TCB clock source.
>>Michael, if you have spare time, maybe you could also test these configs to see if you have similar behavior.
>Okay. So in the working variant with TCB=n, do you have high res timers available?
>Sebastian
When the TCB_CLKSRC=n, the system uses periodic interval timer (pit), and it seems that the
high res timers are not available even though CONFIG_HIGH_RES_TIMERS=y.
/proc/timer_list for the working variant below.
BR,
Sami Pietikäinen
Timer List Version: v0.7
HRTIMER_MAX_CLOCK_BASES: 4
now at 195174767111 nsecs
cpu: 0
clock 0:
.base: c0301990
.index: 0
.resolution: 10000000 nsecs
.get_time: ktime_get
.offset: 0 nsecs
active timers:
#0: <c031e148>, sched_rt_period_timer, S:01
# expires at 196000000000-196000000000 nsecs [in 825232889 to 825232889 nsecs]
#1: <df869aa8>, hrtimer_wakeup, S:01
# expires at 199543365657-199548365650 nsecs [in 4368598546 to 4373598539 nsecs]
clock 1:
.base: c03019d0
.index: 1
.resolution: 10000000 nsecs
.get_time: ktime_get_real
.offset: 0 nsecs
active timers:
clock 2:
.base: c0301a10
.index: 2
.resolution: 10000000 nsecs
.get_time: ktime_get_boottime
.offset: 0 nsecs
active timers:
clock 3:
.base: c0301a50
.index: 3
.resolution: 10000000 nsecs
.get_time: ktime_get_clocktai
.offset: 0 nsecs
active timers:
.expires_next : 9223372036854775807 nsecs
.hres_active : 0
.nr_events : 0
.nr_retries : 0
.nr_hangs : 0
.max_hang_time : 0 nsecs
.nohz_mode : 0
.last_tick : 0 nsecs
.tick_stopped : 0
.idle_jiffies : 0
.idle_calls : 0
.idle_sleeps : 0
.idle_entrytime : 195170661051 nsecs
.idle_waketime : 0 nsecs
.idle_exittime : 0 nsecs
.idle_sleeptime : 188933606397 nsecs
.iowait_sleeptime: 0 nsecs
.last_jiffies : 0
.next_jiffies : 0
.idle_expires : 0 nsecs
jiffies: 4294956814
Tick Device: mode: 0
Per CPU device: 0
Clock Event Device: pit
max_delta_ns: 0
min_delta_ns: 0
mult: 35433480
shift: 32
mode: 2
next_event: 9223372036854775807 nsecs
set_next_event: <00000000>
set_mode: pit_clkevt_mode
event_handler: tick_handle_periodic
retries: 0
^ permalink raw reply [flat|nested] 13+ messages in thread
* RE: [ANNOUNCE] 3.12.0-rt2
2013-11-22 14:23 ` Sebastian Andrzej Siewior
2013-11-24 10:15 ` Michael Langfinger
2013-11-25 8:23 ` Sami Pietikäinen
@ 2013-11-25 13:21 ` Sami Pietikäinen
2013-11-29 16:13 ` Sebastian Andrzej Siewior
2 siblings, 1 reply; 13+ messages in thread
From: Sami Pietikäinen @ 2013-11-25 13:21 UTC (permalink / raw)
To: Sebastian Andrzej Siewior; +Cc: Michael Langfinger, linux-rt-users
>>> - tried to fix AT91's "already-free IRQ" and highres problem. Michael
>>> Langfinge reported it initially and Sami Pietikäinen sent a patch for
>>> the "already-free IRQ" problem. Based on another patch I looked at the
>>> highres patch and tried to fix it. As I don't have the hardware, some
>>> feedback would be nice.
>>
>>I did a quick test run with the 3.12.0-rt2 kernel. There are no "Trying to free already free IRQ 1" warnings anymore so that issue seems to be fixed. However, the system still hangs.
>>
>>Now the kernel boots with the CONFIG_HIGH_RES_TIMERS enabled, but hangs when I enable the TCB clock source.
>Okay. So in the working variant with TCB=n, do you have high res timers available?
Today me and my colleague had time to really look into this tcb_clksrc issue.
I am pretty confident that we solved the issue.
In clocksource-tclib-allow-higher-clockrates.patch the clockevent device frequency is
stored to a local variable but never written to the tc_clkevt_device struct (setup_clkevents function).
When the value is later used in tc_mode function the frequency is 0, which is written
to the compare register of the TC and bad things start to happen. This does not
happen with vanilla kernel because it uses hard coded 32k frequency.
Fix: replace local freq variable with clkevt.freq in setup_clkevents function.
I also renamed clk32k_divisor_idx to divisor_idx because the 32k frequency is not
hard coded in RT.
Michael, could you or your colleague test this fix and report if it works for you also.
BR,
Sami Pietikäinen
--- a/drivers/clocksource/tcb_clksrc.c 2013-11-20 22:37:52.000000000 +0200
+++ b/drivers/clocksource/tcb_clksrc.c 2013-11-25 14:54:02.909623861 +0200
@@ -23,8 +23,7 @@
* this 32 bit free-running counter. the second channel is not used.
*
* - The third channel may be used to provide a 16-bit clockevent
- * source, used in either periodic or oneshot mode. This runs
- * at 32 KiHZ, and can handle delays of up to two seconds.
+ * source, used in either periodic or oneshot mode.
*
* A boot clocksource and clockevent source are also currently needed,
* unless the relevant platforms (ARM/AT91, AVR32/AT32) are changed so
@@ -74,6 +73,7 @@ static struct clocksource clksrc = {
struct tc_clkevt_device {
struct clock_event_device clkevt;
struct clk *clk;
+ u32 freq;
void __iomem *regs;
};
@@ -82,13 +82,6 @@ static struct tc_clkevt_device *to_tc_cl
return container_of(clkevt, struct tc_clkevt_device, clkevt);
}
-/* For now, we always use the 32K clock ... this optimizes for NO_HZ,
- * because using one of the divided clocks would usually mean the
- * tick rate can never be less than several dozen Hz (vs 0.5 Hz).
- *
- * A divided clock could be good for high resolution timers, since
- * 30.5 usec resolution can seem "low".
- */
static u32 timer_clock;
static void tc_mode(enum clock_event_mode m, struct clock_event_device *d)
@@ -111,11 +104,12 @@ static void tc_mode(enum clock_event_mod
case CLOCK_EVT_MODE_PERIODIC:
clk_enable(tcd->clk);
- /* slow clock, count up to RC, then irq and restart */
+ /* count up to RC, then irq and restart */
__raw_writel(timer_clock
| ATMEL_TC_WAVE | ATMEL_TC_WAVESEL_UP_AUTO,
regs + ATMEL_TC_REG(2, CMR));
- __raw_writel((32768 + HZ/2) / HZ, tcaddr + ATMEL_TC_REG(2, RC));
+ __raw_writel((tcd->freq + HZ/2)/HZ,
+ tcaddr + ATMEL_TC_REG(2, RC));
/* Enable clock and interrupts on RC compare */
__raw_writel(ATMEL_TC_CPCS, regs + ATMEL_TC_REG(2, IER));
@@ -128,7 +122,7 @@ static void tc_mode(enum clock_event_mod
case CLOCK_EVT_MODE_ONESHOT:
clk_enable(tcd->clk);
- /* slow clock, count up to RC, then irq and stop */
+ /* count up to RC, then irq and stop */
__raw_writel(timer_clock | ATMEL_TC_CPCSTOP
| ATMEL_TC_WAVE | ATMEL_TC_WAVESEL_UP_AUTO,
regs + ATMEL_TC_REG(2, CMR));
@@ -157,8 +151,12 @@ static struct tc_clkevt_device clkevt =
.name = "tc_clkevt",
.features = CLOCK_EVT_FEAT_PERIODIC
| CLOCK_EVT_FEAT_ONESHOT,
+#ifdef CONFIG_ATMEL_TCB_CLKSRC_USE_SLOW_CLOCK
/* Should be lower than at91rm9200's system timer */
.rating = 125,
+#else
+ .rating = 200,
+#endif
.set_next_event = tc_next_event,
.set_mode = tc_mode,
},
@@ -184,8 +182,9 @@ static struct irqaction tc_irqaction = {
.handler = ch2_irq,
};
-static void __init setup_clkevents(struct atmel_tc *tc, int clk32k_divisor_idx)
+static void __init setup_clkevents(struct atmel_tc *tc, int divisor_idx)
{
+ unsigned divisor = atmel_tc_divisors[divisor_idx];
struct clk *t2_clk = tc->clk[2];
int irq = tc->irq[2];
@@ -193,11 +192,15 @@ static void __init setup_clkevents(struc
clkevt.clk = t2_clk;
tc_irqaction.dev_id = &clkevt;
- timer_clock = clk32k_divisor_idx;
+ timer_clock = divisor_idx;
+ if (!divisor)
+ clkevt.freq = 32768;
+ else
+ clkevt.freq = clk_get_rate(t2_clk) / divisor;
clkevt.clkevt.cpumask = cpumask_of(0);
- clockevents_config_and_register(&clkevt.clkevt, 32768, 1, 0xffff);
+ clockevents_config_and_register(&clkevt.clkevt, clkevt.freq, 1, 0xffff);
setup_irq(irq, &tc_irqaction);
}
@@ -322,8 +325,11 @@ static int __init tcb_clksrc_init(void)
clocksource_register_hz(&clksrc, divided_rate);
/* channel 2: periodic and oneshot timer support */
+#ifdef CONFIG_ATMEL_TCB_CLKSRC_USE_SLOW_CLOCK
setup_clkevents(tc, clk32k_divisor_idx);
-
+#else
+ setup_clkevents(tc, best_divisor_idx);
+#endif
return 0;
}
arch_initcall(tcb_clksrc_init);
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [ANNOUNCE] 3.12.0-rt2
2013-11-25 13:21 ` Sami Pietikäinen
@ 2013-11-29 16:13 ` Sebastian Andrzej Siewior
0 siblings, 0 replies; 13+ messages in thread
From: Sebastian Andrzej Siewior @ 2013-11-29 16:13 UTC (permalink / raw)
To: Sami Pietikäinen; +Cc: Michael Langfinger, linux-rt-users
* Sami Pietikäinen | 2013-11-25 13:21:13 [+0000]:
>In clocksource-tclib-allow-higher-clockrates.patch the clockevent device frequency is
>stored to a local variable but never written to the tc_clkevt_device struct (setup_clkevents function).
Thanks, no idea how I could overlook this.
>Fix: replace local freq variable with clkevt.freq in setup_clkevents function.
>I also renamed clk32k_divisor_idx to divisor_idx because the 32k frequency is not
>hard coded in RT.
Yeah, the right thing to do, Applied
>
>BR,
>Sami Pietikäinen
Sebastian
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [ANNOUNCE] 3.12.1-rt4
2013-11-22 21:11 ` [ANNOUNCE] 3.12.1-rt4 Sebastian Andrzej Siewior
@ 2013-12-01 22:25 ` Pavel Vasilyev
2013-12-02 8:43 ` Sebastian Andrzej Siewior
0 siblings, 1 reply; 13+ messages in thread
From: Pavel Vasilyev @ 2013-12-01 22:25 UTC (permalink / raw)
To: Sebastian Andrzej Siewior
Cc: linux-rt-users, LKML, Thomas Gleixner, rostedt, John Kacur
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10 at kernel/time/tick-sched.c:191 0xffffffff8107bac6()
NO_HZ FULL will not work with unstable sched clock
Modules linked in:
CPU: 1 PID: 10 Comm: rcuop/0 Not tainted 3.12.2-rt4 #3
Hardware name: TYAN Computer Corp. S2895/S2895, BIOS 2004Q3 11/18/2008
0000000000000009 ffff88027fc83ea8 ffffffff81501a58 0000000000000039
ffff88027fc83ef8 ffff88027fc83ee8 ffffffff8102f992 0000000000012700
ata3.00: configured for UDMA/100
ffff88027fc8d580 0000000000000001 ffff880272894020 ffff88027fc0d700
Call Trace:
<IRQ> [<ffffffff81501a58>] 0xffffffff81501a58
[<ffffffff8102f992>] 0xffffffff8102f992
[<ffffffff8102fa61>] 0xffffffff8102fa61
[<ffffffff8107bac6>] 0xffffffff8107bac6
[<ffffffff8107c8f4>] 0xffffffff8107c8f4
[<ffffffff8103405d>] 0xffffffff8103405d
[<ffffffff81006fff>] 0xffffffff81006fff
[<ffffffff815085f7>] 0xffffffff815085f7
<EOI> [<ffffffff81007083>] ? 0xffffffff81007083
[<ffffffff81506865>] ? 0xffffffff81506865
[<ffffffff81095961>] ? 0xffffffff81095961
[<ffffffff81095860>] ? 0xffffffff81095860
[<ffffffff8104d0dd>] 0xffffffff8104d0dd
[<ffffffff8104d030>] ? 0xffffffff8104d030
[<ffffffff8150763c>] 0xffffffff8150763c
[<ffffffff8104d030>] ? 0xffffffff8104d030
---[ end trace 53ca152639ff2a59 ]---
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [ANNOUNCE] 3.12.1-rt4
2013-12-01 22:25 ` Pavel Vasilyev
@ 2013-12-02 8:43 ` Sebastian Andrzej Siewior
0 siblings, 0 replies; 13+ messages in thread
From: Sebastian Andrzej Siewior @ 2013-12-02 8:43 UTC (permalink / raw)
To: pavel; +Cc: linux-rt-users, LKML, Thomas Gleixner, rostedt, John Kacur
On 12/01/2013 11:25 PM, Pavel Vasilyev wrote:
> ------------[ cut here ]------------
> WARNING: CPU: 1 PID: 10 at kernel/time/tick-sched.c:191 0xffffffff8107bac6()
> NO_HZ FULL will not work with unstable sched clock
> Call Trace:
> <IRQ> [<ffffffff81501a58>] 0xffffffff81501a58
> [<ffffffff8102f992>] 0xffffffff8102f992
Okay. Now we have a backstrace. Better. Now there is an option named
CONFIG_DEBUG_INFO which resolves a number like 0xffffffff81501a58 to
the function name. Without it enabled, the backtrace is of no use to me.
However, in this case you triggered the warning in tick-sched.c. The
good news is that FULL-NO-HZ mode is not available because your TSC is
unstable and this is all the backtrace is about so it is harmless. You
should see it even without -RT enabled. The bad news is that I don't
think that this has anything to do with your SATA problem.
Sebastian
^ permalink raw reply [flat|nested] 13+ messages in thread
end of thread, other threads:[~2013-12-02 8:43 UTC | newest]
Thread overview: 13+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-11-16 19:46 [ANNOUNCE] 3.12.0-rt2 Sebastian Andrzej Siewior
2013-11-16 21:26 ` Pavel Vasilyev
2013-11-19 7:38 ` Sami Pietikäinen
2013-11-22 14:23 ` Sebastian Andrzej Siewior
2013-11-24 10:15 ` Michael Langfinger
2013-11-25 8:23 ` Sami Pietikäinen
2013-11-25 13:21 ` Sami Pietikäinen
2013-11-29 16:13 ` Sebastian Andrzej Siewior
2013-11-21 20:44 ` [ANNOUNCE] 3.2.52-rt73 Pavel Vasilyev
2013-11-22 14:56 ` Sebastian Andrzej Siewior
2013-11-22 21:11 ` [ANNOUNCE] 3.12.1-rt4 Sebastian Andrzej Siewior
2013-12-01 22:25 ` Pavel Vasilyev
2013-12-02 8:43 ` Sebastian Andrzej Siewior
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