[17:41:12] [ 57.253594] Sending NMI from CPU 0 to CPUs 1: [17:41:22] [ 67.257281] rcu_preempt kthread starved for 2102 jiffies! g1197 c1196 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x402 ->cpu=1 [17:41:22] [ 67.268211] rcu_preempt I 0 8 2 0x00000000 [17:41:22] [ 67.273961...
All QSes seen, last rcu_preempt kthread activity 23807 (4297905177-4297881370), jiffies_till_next_fqs=3, root ->qsmask 0x0 “23807”表示自宽限期 kthread 运行以来已超过 23,000 个 jiffies。 “jiffies_till_next_fqs”表示 kthread 应该运行的频率,给出强制静止状态扫描之间的 jiffies 数量,在本...
o 阻止RCU宽限期kthread运行的任何措施。这可能会导致“All QSes seen”控制台日志消息。此消息将包含有关kthread上次运行的时间以及应该运行的频率的信息。它还可能导致控制台日志消息“ rcu _.*kthread starved for”,其中将包含其他调试信息。 O CONFIG_PREEMPT内核中的CPU绑定的实时任务,这可能恰好抢占了RCU读取...
[ 594.585587] rcu: rcu_preempt kthread starved for 57238 jiffies! g625 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1[ 594.595734] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.[ 594.604841] rcu: RCU grace-period kthread...
rcu_sched kthread starved for 5289 jiffies! 0 Kudos Reply 02-04-2018 10:56 PM 7,767 Views panjiading Contributor I Hi Yiping, Thank you very much for your respone! I will test it with your suggestion. But this is a problem that happens about one week to 15 day...
o 阻⽌RCU宽限期kthread运⾏的任何措施。这可能会导致“All QSes seen”控制台⽇志消息。此消息将包含有关kthread上次运⾏的时间以及应该运⾏的频率的信息。它还可能导致控制台⽇志消息“ rcu _.*kthread starved for”，其中将包含其他调试信息。O CONFIG_PREEMPT内核中的CPU绑定的实时任务，这...
[307362.430710] rcu_preempt kthread starved for 2101 jiffies! Did you ever resolve this? 0 Kudos Reply 09-17-2019 09:44 AM 5,038 Views todd_blanchard Contributor I -> Did you ever resolve this? It appears that applying the errata within u-boot code did resolve the issue...
static void rcu_check_gp_kthread_starvation(void) { struct task_struct *gpk = rcu_state.gp_kthread; unsigned long j; if (rcu_is_gp_kthread_starving(&j)) { pr_err("%s kthread starved for %ld jiffies! g%ld f%#x %s(%d) ->state=%#lx ->cpu=%d\n", ...
INFO: rcu_preempt detected stalls on CPUs/tasks: { 0} (detected by 1, t=2102 jiffies, g=50012, c=50011, q=6543) [<8077bd70>] (__schedule) from [<80a7ffa0>] (init_thread_union+0x1fa0/0x2000) rcu_preempt kthread starved for 2102 jiffies! From the taskdump in that image it...
[ 105.210998] rcu: rcu_sched kthread starved for 88892 jiffies! g689 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=5 [ 105.211981] rcu: RCU grace-period kthread stack dump: [ 105.212630] rcu_sched I 0 10 2 0x00000028 [ 105.213267] Call trace: ...