**INFO: rcu_preempt self-detected stall on CPU { 0} (t=21000 jiffies g=2362 c=2361 q=207)** **sending NMI to all CPUs: NMI backtrace for cpu 1** CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.14.29ltsi-rt22-yocto-preempt-rt+ #1 Hardware name: ADI Engineering RCC-VE/RCC-VE...
INFO: rcu_sched self-detected stall on CPU 0: (2099 ticks this GP) idle=5ed/140000000000001/0 softirq=13024/13024 fqs=1783 (t=2100 jiffies g=-51 c=-52 q=22) Task dump for CPU 0: insmod R running 0 658 657 0x00000002 [<c00171b4>] (unwind_backtrace) from [<c0012e7c>] (show...
INFO: rcu_sched self-detected stall on CPU 0: (2099 ticks this GP) idle=5ed/140000000000001/0 softirq=13024/13024 fqs=1783 (t=2100 jiffies g=-51 c=-52 q=22) Task dump for CPU 0: insmod R running 0 658 657 0x00000002 [<c00171b4>] (unwind_backtrace) from [<c0012e7c>] (show...
[<c0052874>] (sched_show_task) from [<c0055dd0>] (dump_cpu_task+0x48/0x4c) [<c0055dd0>] (dump_cpu_task) from [<c0082878>] (rcu_dump_cpu_stacks+0x9c/0xd4) [<c0082878>] (rcu_dump_cpu_stacks) from [<c008665c>] (rcu_check_callbacks+0x640/0x968) [<c008665c>] (rcu_...
kernel: [ 48.534370] INFO: rcu_preempt self-detected stall on CPU kernel: [ 48.539705] 0-...: (1 ticks this GP) idle=26b/140000000000001/0 softirq=6846/6846 fqs=0 kernel: [ 48.547880] (t=2717 jiffies g=1149 c=1148 q=6) kernel: [ 48.552514] rcu_preempt kthread starved for 2717 ...
📷这是我的日志:dmesg日志(pastebin.com) 每隔100到200秒,就会有这样的片段: [ 126.913012] INFO: rcu_sched self-detected stall on CPU { 0} (t=24979 jiffies g=2216 c=2215 q=0) [ 126.913027] Task dump for CPU 0: [ 浏览0提问于2016-01-29得票数 3...
system starts booting but starts kicking out some rcu_sched self-detected stall on CPU system boots eventually without issue, no crash, but it is very very very slow access via SSH is possible - but again but it is very very very slow - molasses slow updates not attempted .. What else ...
___might_sleep、__might_sleep和__cant_sleep都实现在<root/kernel/sched/core.c>中。 如果开启睡眠监测调试,以下三个宏的作用是: ___might_sleep用于在内核中进行睡眠检测,并在可能会引起睡眠的地方调用。它通常用于在内核中进行高级别的睡眠检查,可能会引发睡眠的地方。如果在不允许的上下文中执行了睡眠操作...
[ 199.885653] rcu: INFO: rcu_sched self-detected stall on CPU [ 199.891227] rcu: 0-...: (1 GPs behind) idle=8ee/0/0x3 softirq=38038/38039 fqs=275 [ 199.898955] rcu: (t=5253 jiffies g=22169 q=2465) [ 199.903737] Task dump for CPU 0: [...
在atomic p中睡眠可能造成很多不可预测的问题,这些atomic p包括spinlock持锁、rcu读操作、禁止内核抢占...