/* * Copyright (C) 2016 MediaTek Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See http://www.gnu.org/licenses/gpl-2.0.html for more details. */ #include #include "mtk_ram_console.h" #ifdef CONFIG_MTK_RT_THROTTLE_MON #include "mtk_rt_mon.h" #endif /* sched: aee for sched/debug */ /* #define TEST_SCHED_DEBUG_ENHANCEMENT */ #define TRYLOCK_NUM 10 #include char print_at_AEE_buffer[160]; /* sched: add rt_exec_task info */ DECLARE_PER_CPU(u64, rt_throttling_start); DECLARE_PER_CPU(u64, exec_delta_time); DECLARE_PER_CPU(u64, clock_task); DECLARE_PER_CPU(u64, exec_start); DECLARE_PER_CPU(struct task_struct, exec_task); DECLARE_PER_CPU(u64, old_rt_time); DECLARE_PER_CPU(u64, init_rt_time); DECLARE_PER_CPU(u64, rt_period_time); #define SEQ_printf_at_AEE(m, x...) \ do { \ snprintf(print_at_AEE_buffer, sizeof(print_at_AEE_buffer), x); \ aee_sram_fiq_log(print_at_AEE_buffer); \ } while (0) static void print_task_at_AEE(struct seq_file *m, struct rq *rq, struct task_struct *p) { #ifdef CONFIG_SCHEDSTATS if (rq->curr == p) { #ifdef CONFIG_CGROUP_SCHED SEQ_printf_at_AEE(m, "R %15s %5d %9lld.%06ld %9lld %5d %9lld.%06ld %9lld.%06ld %9lld.%06ld %s\n", p->comm, task_pid_nr(p), SPLIT_NS(p->se.vruntime), (long long)(p->nvcsw + p->nivcsw), p->prio, SPLIT_NS(p->se.statistics.wait_sum), SPLIT_NS(p->se.sum_exec_runtime), SPLIT_NS(p->se.statistics.sum_sleep_runtime), task_group_path(task_group(p))); #else SEQ_printf_at_AEE(m, "R %15s %5d %9lld.%06ld %9lld %5d %9lld.%06ld %9lld.%06ld %9lld.%06ld\n", p->comm, task_pid_nr(p), SPLIT_NS(p->se.vruntime), (long long)(p->nvcsw + p->nivcsw), p->prio, SPLIT_NS(p->se.statistics.wait_sum), SPLIT_NS(p->se.sum_exec_runtime), SPLIT_NS(p->se.statistics.sum_sleep_runtime)); #endif } else { #ifdef CONFIG_CGROUP_SCHED SEQ_printf_at_AEE(m, " %15s %5d %9lld.%06ld %9lld %5d %9lld.%06ld %9lld.%06ld %9lld.%06ld %s\n", p->comm, task_pid_nr(p), SPLIT_NS(p->se.vruntime), (long long)(p->nvcsw + p->nivcsw), p->prio, SPLIT_NS(p->se.statistics.wait_sum), SPLIT_NS(p->se.sum_exec_runtime), SPLIT_NS(p->se.statistics.sum_sleep_runtime), task_group_path(task_group(p))); #else SEQ_printf_at_AEE(m, " %15s %5d %9lld.%06ld %9lld %5d %9lld.%06ld %9lld.%06ld %9lld.%06ld\n", p->comm, task_pid_nr(p), SPLIT_NS(p->se.vruntime), (long long)(p->nvcsw + p->nivcsw), p->prio, SPLIT_NS(p->se.statistics.wait_sum), SPLIT_NS(p->se.sum_exec_runtime), SPLIT_NS(p->se.statistics.sum_sleep_runtime)); #endif } #else SEQ_printf_at_AEE(m, "%9lld.%06ld %9lld.%06ld %9lld.%06ld", 0LL, 0L, SPLIT_NS(p->se.sum_exec_runtime), 0LL, 0L); #endif } /* sched: add aee log */ #define read_trylock_irqsave(lock, flags) \ ({ \ typecheck(unsigned long, flags); \ local_irq_save(flags); \ read_trylock(lock) ? \ 1 : ({ local_irq_restore(flags); 0; }); \ }) int read_trylock_n_irqsave(rwlock_t *lock, unsigned long *flags, struct seq_file *m, char *msg) { int locked, trylock_cnt = 0; do { locked = read_trylock_irqsave(lock, *flags); trylock_cnt++; mdelay(10); } while ((!locked) && (trylock_cnt < TRYLOCK_NUM)); if (!locked) { #ifdef CONFIG_DEBUG_SPINLOCK struct task_struct *owner = NULL; #endif SEQ_printf_at_AEE(m, "Warning: fail to get lock in %s\n", msg); #ifdef CONFIG_DEBUG_SPINLOCK if (lock->owner && lock->owner != SPINLOCK_OWNER_INIT) owner = lock->owner; #ifdef CONFIG_SMP SEQ_printf_at_AEE(m, " lock: %p, .magic: %08x, .owner: %s/%d", lock, lock->magic, owner ? owner->comm : "<>", owner ? task_pid_nr(owner) : -1); SEQ_printf_at_AEE(m, ".owner_cpu: %d, value: %d\n", lock->owner_cpu, lock->raw_lock.lock); #else SEQ_printf_at_AEE(m, " lock: %p, .magic: %08x, .owner: %s/%d", lock, lock->magic, owner ? owner->comm : "<>", owner ? task_pid_nr(owner) : -1); SEQ_printf_at_AEE(m, ".owner_cpu: %d\n", lock->owner_cpu); #endif #endif } return locked; } int raw_spin_trylock_n_irqsave(raw_spinlock_t *lock, unsigned long *flags, struct seq_file *m, char *msg) { int locked, trylock_cnt = 0; do { locked = raw_spin_trylock_irqsave(lock, *flags); trylock_cnt++; mdelay(10); } while ((!locked) && (trylock_cnt < TRYLOCK_NUM)); if (!locked) { #ifdef CONFIG_DEBUG_SPINLOCK struct task_struct *owner = NULL; #endif SEQ_printf_at_AEE(m, "Warning: fail to get lock in %s\n", msg); #ifdef CONFIG_DEBUG_SPINLOCK if (lock->owner && lock->owner != SPINLOCK_OWNER_INIT) owner = lock->owner; #ifdef CONFIG_ARM64 #ifdef CONFIG_SMP SEQ_printf_at_AEE(m, " lock: %lx, .magic: %08x, .owner: %s/%d", (long)lock, lock->magic, owner ? owner->comm : "<>", owner ? task_pid_nr(owner) : -1); SEQ_printf_at_AEE(m, ".owner_cpu: %d, owner: %hu, next: %hu\n", lock->owner_cpu, lock->raw_lock.owner, lock->raw_lock.next); #else SEQ_printf_at_AEE(m, " lock: %lx, .magic: %08x, .owner: %s/%d", (long)lock, lock->magic, owner ? owner->comm : "<>", owner ? task_pid_nr(owner) : -1); SEQ_printf_at_AEE(m, ".owner_cpu: %d, value: %d\n", lock->owner_cpu, lock->raw_lock.slock); #endif #else SEQ_printf_at_AEE(m, " lock: %x, .magic: %08x, .owner: %s/%d", (int)lock, lock->magic, owner ? owner->comm : "<>", owner ? task_pid_nr(owner) : -1); SEQ_printf_at_AEE(m, ".owner_cpu: %d, value: %d\n", lock->owner_cpu, lock->raw_lock.slock); #endif #endif } return locked; } int spin_trylock_n_irqsave(spinlock_t *lock, unsigned long *flags, struct seq_file *m, char *msg) { int locked, trylock_cnt = 0; do { locked = spin_trylock_irqsave(lock, *flags); trylock_cnt++; mdelay(10); } while ((!locked) && (trylock_cnt < TRYLOCK_NUM)); if (!locked) { #ifdef CONFIG_DEBUG_SPINLOCK raw_spinlock_t rlock = lock->rlock; struct task_struct *owner = NULL; #endif SEQ_printf_at_AEE(m, "Warning: fail to get lock in %s\n", msg); #ifdef CONFIG_DEBUG_SPINLOCK if (rlock.owner && rlock.owner != SPINLOCK_OWNER_INIT) owner = rlock.owner; #ifdef CONFIG_ARM64 #ifdef CONFIG_SMP SEQ_printf_at_AEE(m, " lock: %lx, .magic: %08x, .owner: %s/%d", (long)&rlock, rlock.magic, owner ? owner->comm : "<>", owner ? task_pid_nr(owner) : -1); SEQ_printf_at_AEE(m, ".owner_cpu: %d, owner: %hu, next: %hu\n", rlock.owner_cpu, rlock.raw_lock.owner, rlock.raw_lock.next); #else SEQ_printf_at_AEE(m, " lock: %lx, .magic: %08x, .owner: %s/%d", (long)&rlock, rlock.magic, owner ? owner->comm : "<>", owner ? task_pid_nr(owner) : -1); SEQ_printf_at_AEE(m, ".owner_cpu: %d, value: %d\n", rlock.owner_cpu, rlock.raw_lock.slock); #endif #else SEQ_printf_at_AEE(m, " lock: %x, .magic: %08x, .owner: %s/%d", (int)&rlock, rlock.magic, owner ? owner->comm : "<>", owner ? task_pid_nr(owner) : -1); SEQ_printf_at_AEE(m, ".owner_cpu: %d, value: %d\n", rlock.owner_cpu, rlock.raw_lock.slock); #endif #endif } return locked; } static void print_rq_at_AEE(struct seq_file *m, struct rq *rq, int rq_cpu) { struct task_struct *g, *p; SEQ_printf_at_AEE(m, "\nrunnable tasks:\n"); SEQ_printf_at_AEE(m, " task PID tree-key switches prio wait-time sum-exec sum-sleep\n"); SEQ_printf_at_AEE(m, "---------------------------------------------------\n"); rcu_read_lock(); for_each_process_thread(g, p) { /* * if (task_cpu(p) != rq_cpu) * sched: only output the runnable tasks, * rather than ALL tasks in runqueues */ if (!p->on_rq || task_cpu(p) != rq_cpu) continue; print_task_at_AEE(m, rq, p); } rcu_read_unlock(); } #ifdef CONFIG_FAIR_GROUP_SCHED static void print_cfs_group_stats_at_AEE(struct seq_file *m, int cpu, struct task_group *tg) { struct sched_entity *se = tg->se[cpu]; #define P(F) \ SEQ_printf_at_AEE(m, " .%-30s: %lld\n", #F, (long long)F) #define PN(F) \ SEQ_printf_at_AEE(m, " .%-30s: %lld.%06ld\n", \ #F, SPLIT_NS((long long)F)) if (!se) return; PN(se->exec_start); PN(se->vruntime); PN(se->sum_exec_runtime); #ifdef CONFIG_SCHEDSTATS PN(se->statistics.wait_start); PN(se->statistics.sleep_start); PN(se->statistics.block_start); PN(se->statistics.sleep_max); PN(se->statistics.block_max); PN(se->statistics.exec_max); PN(se->statistics.slice_max); PN(se->statistics.wait_max); PN(se->statistics.wait_sum); P(se->statistics.wait_count); #endif P(se->load.weight); #ifdef CONFIG_SMP P(se->avg.load_avg); P(se->avg.util_avg); #endif #undef PN #undef P } #endif void print_cfs_rq_at_AEE(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq) { s64 MIN_vruntime = -1, min_vruntime, max_vruntime = -1, spread, rq0_min_vruntime, spread0; struct rq *rq = cpu_rq(cpu); struct sched_entity *last; unsigned long flags; int locked; #ifdef CONFIG_FAIR_GROUP_SCHED SEQ_printf_at_AEE(m, "\ncfs_rq[%d]:%s\n", cpu, task_group_path(cfs_rq->tg)); #else SEQ_printf_at_AEE(m, "\ncfs_rq[%d]:\n", cpu); #endif SEQ_printf_at_AEE(m, " .%-30s: %lld.%06ld\n", "exec_clock", SPLIT_NS(cfs_rq->exec_clock)); /*raw_spin_lock_irqsave(&rq->lock, flags);*/ locked = raw_spin_trylock_n_irqsave(&rq->lock, &flags, m, "print_cfs_rq_at_AEE"); if (rb_first_cached(&cfs_rq->tasks_timeline)) MIN_vruntime = (__pick_first_entity(cfs_rq))->vruntime; last = __pick_last_entity(cfs_rq); if (last) max_vruntime = last->vruntime; min_vruntime = cfs_rq->min_vruntime; rq0_min_vruntime = cpu_rq(0)->cfs.min_vruntime; if (locked) raw_spin_unlock_irqrestore(&rq->lock, flags); SEQ_printf_at_AEE(m, " .%-30s: %lld.%06ld\n", "MIN_vruntime", SPLIT_NS(MIN_vruntime)); SEQ_printf_at_AEE(m, " .%-30s: %lld.%06ld\n", "min_vruntime", SPLIT_NS(min_vruntime)); SEQ_printf_at_AEE(m, " .%-30s: %lld.%06ld\n", "max_vruntime", SPLIT_NS(max_vruntime)); spread = max_vruntime - MIN_vruntime; /* * SEQ_printf_at_AEE(m, " .%-30s: %Ld.%06ld\n", "spread", * SPLIT_NS(spread)); */ spread0 = min_vruntime - rq0_min_vruntime; /* * SEQ_printf_at_AEE(m, " .%-30s: %Ld.%06ld\n", "spread0", * SPLIT_NS(spread0)); * SEQ_printf_at_AEE(m, " .%-30s: %d\n", "nr_spread_over", * cfs_rq->nr_spread_over); */ SEQ_printf_at_AEE(m, " .%-30s: %d\n", "nr_running", cfs_rq->nr_running); SEQ_printf_at_AEE(m, " .%-30s: %ld\n", "load", cfs_rq->load.weight); #ifdef CONFIG_SMP SEQ_printf_at_AEE(m, " .%-30s: %lu\n", "load_avg", cfs_rq->avg.load_avg); SEQ_printf_at_AEE(m, " .%-30s: %lu\n", "runnable_load_avg", cfs_rq->runnable_load_avg); SEQ_printf_at_AEE(m, " .%-30s: %lu\n", "util_avg", cfs_rq->avg.util_avg); SEQ_printf_at_AEE(m, " .%-30s: %ld\n", "removed_load_avg", atomic_long_read(&cfs_rq->removed_load_avg)); SEQ_printf_at_AEE(m, " .%-30s: %ld\n", "removed_util_avg", atomic_long_read(&cfs_rq->removed_util_avg)); #ifdef CONFIG_FAIR_GROUP_SCHED SEQ_printf_at_AEE(m, " .%-30s: %lu\n", "tg_load_avg_contrib", cfs_rq->tg_load_avg_contrib); SEQ_printf_at_AEE(m, " .%-30s: %ld\n", "tg_load_avg", atomic_long_read(&cfs_rq->tg->load_avg)); #endif #endif #ifdef CONFIG_CFS_BANDWIDTH SEQ_printf_at_AEE(m, " .%-30s: %d\n", "throttled", cfs_rq->throttled); SEQ_printf_at_AEE(m, " .%-30s: %d\n", "throttle_count", cfs_rq->throttle_count); #endif #ifdef CONFIG_FAIR_GROUP_SCHED print_cfs_group_stats_at_AEE(m, cpu, cfs_rq->tg); #endif } #define for_each_leaf_cfs_rq(rq, cfs_rq) \ list_for_each_entry_rcu(cfs_rq, &rq->leaf_cfs_rq_list, leaf_cfs_rq_list) void print_cfs_stats_at_AEE(struct seq_file *m, int cpu) { struct cfs_rq *cfs_rq; rcu_read_lock(); cfs_rq = &cpu_rq(cpu)->cfs; /*sched: only output / cgroup schedule info*/ print_cfs_rq_at_AEE(m, cpu, cfs_rq); rcu_read_unlock(); } void print_rt_rq_at_AEE(struct seq_file *m, int cpu, struct rt_rq *rt_rq) { #ifdef CONFIG_RT_GROUP_SCHED int cpu_rq_throttle = rq_cpu(rt_rq->rq); SEQ_printf_at_AEE(m, "\nrt_rq[%d]:%s\n", cpu, task_group_path(rt_rq->tg)); #else SEQ_printf_at_AEE(m, "\nrt_rq[%d]:\n", cpu); #endif #define P(x) \ SEQ_printf_at_AEE(m, " .%-30s: %lld\n", #x, (long long)(rt_rq->x)) #define PN(x) \ SEQ_printf_at_AEE(m, " .%-30s: %lld.%06ld\n", #x, SPLIT_NS(rt_rq->x)) P(rt_nr_running); P(rt_throttled); SEQ_printf_at_AEE(m, " exec_task[%d:%s], prio=%d\n", per_cpu(exec_task, cpu).pid, per_cpu(exec_task, cpu).comm, per_cpu(exec_task, cpu).prio); #ifdef CONFIG_RT_GROUP_SCHED SEQ_printf_at_AEE(m, " .rt_throttling_start : [%llu]\n", per_cpu(rt_throttling_start, cpu_rq_throttle)); #endif PN(rt_time); PN(rt_runtime); #undef PN #undef P } #ifdef CONFIG_RT_GROUP_SCHED static inline struct task_group *next_task_group(struct task_group *tg) { do { tg = list_entry_rcu(tg->list.next, typeof(struct task_group), list); } while (&tg->list != &task_groups && task_group_is_autogroup(tg)); if (&tg->list == &task_groups) tg = NULL; return tg; } #define for_each_rt_rq(rt_rq, iter, rq) \ for (iter = container_of(&task_groups, typeof(*iter), list); \ (iter = next_task_group(iter)) && \ (rt_rq = iter->rt_rq[cpu_of(rq)]);) #else /* !CONFIG_RT_GROUP_SCHED */ #define for_each_rt_rq(rt_rq, iter, rq) \ for ((void) iter, rt_rq = &rq->rt; rt_rq; rt_rq = NULL) #endif void print_rt_stats_at_AEE(struct seq_file *m, int cpu) { struct rt_rq *rt_rq; rt_rq = &cpu_rq(cpu)->rt; rcu_read_lock(); /*sched: only output / cgroup schedule info*/ print_rt_rq_at_AEE(m, cpu, rt_rq); rcu_read_unlock(); } void print_dl_rq_at_AEE(struct seq_file *m, int cpu, struct dl_rq *dl_rq) { SEQ_printf_at_AEE(m, "\ndl_rq[%d]:\n", cpu); SEQ_printf_at_AEE(m, " .%-30s: %ld\n", "dl_nr_running", dl_rq->dl_nr_running); } void print_dl_stats_at_AEE(struct seq_file *m, int cpu) { print_dl_rq_at_AEE(m, cpu, &cpu_rq(cpu)->dl); } static void print_cpu_at_AEE(struct seq_file *m, int cpu) { struct rq *rq = cpu_rq(cpu); unsigned long flags; int locked; #ifdef CONFIG_X86 { unsigned int freq = cpu_khz ? : 1; SEQ_printf_at_AEE(m, "cpu#%d, %u.%03u MHz\n", cpu, freq / 1000, (freq % 1000)); } #else /* sched: add cpu info */ SEQ_printf_at_AEE(m, "cpu#%d: %s\n", cpu, cpu_is_offline(cpu) ? "Offline" : "Online"); #endif #define P(x) \ do { \ if (sizeof(rq->x) == 4) \ SEQ_printf_at_AEE(m, " .%-30s: %ld\n", \ #x, (long)(rq->x)); \ else \ SEQ_printf_at_AEE(m, " .%-30s: %lld\n", \ #x, (long long)(rq->x)); \ } while (0) #define PN(x) \ SEQ_printf_at_AEE(m, " .%-30s: %lld.%06ld\n", #x, SPLIT_NS(rq->x)) P(nr_running); SEQ_printf_at_AEE(m, " .%-30s: %lu\n", "load", rq->load.weight); /*P(nr_switches);*/ P(nr_load_updates); P(nr_uninterruptible); PN(next_balance); SEQ_printf_at_AEE(m, " .%-30s: %ld\n", "curr->pid", (long)(task_pid_nr(rq->curr))); PN(clock); PN(clock_task); SEQ_printf_at_AEE(m, " .%-30s: %ld %ld %ld %ld %ld\n", "cpu_load", (long)(rq->cpu_load[0]), (long)(rq->cpu_load[1]), (long)(rq->cpu_load[2]), (long)(rq->cpu_load[3]), (long)(rq->cpu_load[4])); /* * P(cpu_load[0]); * P(cpu_load[1]); * P(cpu_load[2]); * P(cpu_load[3]); * P(cpu_load[4]); */ #undef P #undef PN #ifdef CONFIG_SCHEDSTATS #define P(n) SEQ_printf_at_AEE(m, " .%-30s: %d\n", #n, rq->n) #define P64(n) SEQ_printf_at_AEE(m, " .%-30s: %lld\n", #n, rq->n) /* * P(yld_count); * P(sched_count); * P(sched_goidle); */ #ifdef CONFIG_SMP P64(avg_idle); P64(max_idle_balance_cost); #endif /* * P(ttwu_count); * P(ttwu_local); */ #undef P #undef P64 #endif /*spin_lock_irqsave_lock_irqsave(&sched_debug_lock, flags);*/ locked = spin_trylock_n_irqsave(&sched_debug_lock, &flags, m, "print_cpu_at_AEE"); print_cfs_stats_at_AEE(m, cpu); print_rt_stats_at_AEE(m, cpu); print_dl_stats_at_AEE(m, cpu); rcu_read_lock(); print_rq_at_AEE(m, rq, cpu); SEQ_printf_at_AEE(m, "============================================\n"); rcu_read_unlock(); /*spin_unlock_irqrestore(&sched_debug_lock, flags);*/ if (locked) spin_unlock_irqrestore(&sched_debug_lock, flags); } static void sched_debug_header_at_AEE(struct seq_file *m) { u64 sched_clk, cpu_clk; unsigned long flags; #ifdef TEST_SCHED_DEBUG_ENHANCEMENT struct rq *rq = cpu_rq(0); /* lock_timekeeper(); */ raw_spin_lock_irq(&rq->lock); spin_lock_irqsave(&sched_debug_lock, flags); write_lock_irqsave(&tasklist_lock, flags); #endif local_irq_save(flags); /*ktime = ktime_to_ns(ktime_get());*/ sched_clk = sched_clock(); cpu_clk = local_clock(); local_irq_restore(flags); SEQ_printf_at_AEE(m, "Sched Debug Version: v0.11, %s %.*s\n", init_utsname()->release, (int)strcspn(init_utsname()->version, " "), init_utsname()->version); #define P(x) \ SEQ_printf_at_AEE(m, "%-40s: %lld\n", #x, (long long)(x)) #define PN(x) \ SEQ_printf_at_AEE(m, "%-40s: %lld.%06ld\n", #x, SPLIT_NS(x)) /*PN(ktime);*/ PN(sched_clk); PN(cpu_clk); P(jiffies); #ifdef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK P(sched_clock_stable()); #endif #undef PN #undef P /*SEQ_printf_at_AEE(m, "\n");*/ SEQ_printf_at_AEE(m, "sysctl_sched\n"); #define P(x) \ SEQ_printf_at_AEE(m, " .%-40s: %lld\n", #x, (long long)(x)) #define PN(x) \ SEQ_printf_at_AEE(m, " .%-40s: %lld.%06ld\n", #x, SPLIT_NS(x)) PN(sysctl_sched_latency); PN(sysctl_sched_min_granularity); PN(sysctl_sched_wakeup_granularity); P(sysctl_sched_child_runs_first); P(sysctl_sched_features); #undef PN #undef P SEQ_printf_at_AEE(m, " .%-40s: %d (%s)\n", "sysctl_sched_tunable_scaling", sysctl_sched_tunable_scaling, sched_tunable_scaling_names[sysctl_sched_tunable_scaling]); SEQ_printf_at_AEE(m, "\n"); } void sysrq_sched_debug_show_at_AEE(void) { int cpu; unsigned long flags; int locked; sched_debug_header_at_AEE(NULL); /* read_lock_irqsave(&tasklist_lock, flags); */ locked = read_trylock_n_irqsave(&tasklist_lock, &flags, NULL, "sched_debug_show_at_AEE"); /* for_each_online_cpu(cpu) */ for_each_possible_cpu(cpu) { print_cpu_at_AEE(NULL, cpu); } if (locked) read_unlock_irqrestore(&tasklist_lock, flags); #ifdef CONFIG_MTK_RT_THROTTLE_MON /* sched:rt throttle monitor */ mt_rt_mon_print_task_from_buffer(); #endif }