“rcu_preempt 檢測到 CPU / 任務停止”消息似乎繼續

我的董事會繼續顯示下面的消息。

終端沒有任何輸入。

我知道的以下消息是什麼？(T, g, c, q …)

這種現象的原因是什麼？

我該如何解決這種現象？

INFO: rcu_preempt detected stalls on CPUs/tasks: { 3} (detected by 0, t=3936547 jiffies, g=367023708, c=367023707, q=1511)
INFO: rcu_preempt detected stalls on CPUs/tasks: { 3} (detected by 2, t=3972552 jiffies, g=367023708, c=367023707, q=1511)
INFO: rcu_preempt detected stalls on CPUs/tasks: { 3} (detected by 1, t=4008557 jiffies, g=367023708, c=367023707, q=1511)
INFO: rcu_preempt detected stalls on CPUs/tasks: { 3} (detected by 1, t=4044562 jiffies, g=367023708, c=367023707, q=1511)
INFO: rcu_preempt detected stalls on CPUs/tasks: { 3} (detected by 2, t=4080567 jiffies, g=367023708, c=367023707, q=1511)
INFO: rcu_preempt detected stalls on CPUs/tasks: { 3} (detected by 0, t=4116572 jiffies, g=367023708, c=367023707, q=1511)
INFO: rcu_preempt detected stalls on CPUs/tasks: { 3} (detected by 1, t=4152577 jiffies, g=367023708, c=367023707, q=1511)
INFO: rcu_preempt detected stalls on CPUs/tasks: { 3} (detected by 0, t=4188582 jiffies, g=367023708, c=367023707, q=1511)
INFO: rcu_preempt detected stalls on CPUs/tasks: { 3} (detected by 1, t=4224587 jiffies, g=367023708, c=367023707, q=1511)
INFO: rcu_preempt detected stalls on CPUs/tasks: { 3} (detected by 1, t=4260592 jiffies, g=367023708, c=367023707, q=1511)
INFO: rcu_preempt detected stalls on CPUs/tasks: { 3} (detected by 1, t=4296597 jiffies, g=367023708, c=367023707, q=1511)
INFO: rcu_preempt detected stalls on CPUs/tasks: { 3} (detected by 2, t=4332602 jiffies, g=367023708, c=367023707, q=1511)
INFO: rcu_preempt detected stalls on CPUs/tasks: { 3} (detected by 2, t=4368607 jiffies, g=367023708, c=367023707, q=1511)

您可能有一個實時應用程序正在消耗所有 cpu（一些糟糕的實現），並且由於其實時調度優先級，系統沒有足夠的資源可用於其他任務。

我建議您從應用程序中刪除實時優先級並檢查哪個佔用大量 CPU，並在糾正問題後將其恢復為實時優先級

引用自：https://unix.stackexchange.com/questions/252045