1. 解释“rcu: info: rcu_sched self-detected stall on cpu”这条日志信息的含义 这条日志信息来自于Linux内核的RCU(Read-Copy Update)子系统,表示RCU调度器(rcu_sched)在CPU上检测到了一个“stall”(停滞)情况。RCU是Linux内核中用于优化读多写少场景的一种同步机制。当RCU检测到某个CPU上的RCU读侧更新(gr...
0-...: (2 GPs behind) idle=ba3/2/0 softirq=57744173/57744175 fqs=792613 (t=915060 jiffies g=633773 c=633772 q=122002) Task dump for CPU 0: swapper/0 R running 0 0 0 0x00100004 Stack : 0000001d 00000000 00000000 81070b60 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ...
ha › (30157.0233571 rcu: INFO: rcu_preempt self-detected stall on CPU [30157.0283551 reu: 02-..: (2 ticks this GP) Idle-361/1/0x4000000000000002 softirq=283006/283006 fuss1. (30157.0302231 reu: reu preempt kthread starved for 288245252820 Jlfries? g745309 fOx0 RCULGP_MAIT_14S(5) -...
Hi, freescale android kernel have scheduling problem .It will random crash( rcu_sched_state detected stall on CPU ) Similar problems: