当你在Linux系统中看到类似于”rcu_sched detected stalls on CPUs/tasks”的错误消息时,这表示系统检测到了针对RCU(Read-Copy-Update)机制的延迟。RCU是一种用于实现读写并发性的技术,在内核中广泛使用。 这个错误通常意味着在进行RCU更新时,某些CPU或任务被阻塞了较长时间,导致系统性能下降或出现其他问题。可能会...
有一份SDK,之前跑在PPC405EX上没问题。最近换平台,CPU使用了PowerPC的P1020,双核。 linux版本也升级到了3.0.48版本。升级之后出现了一个问题:SDK里面的程序跑一段时间之后会报告: INFO: rcu_sched_state detected stalls on CPUs/tasks: { 1} (detected by 0, t=15002 jiffies)。意思是CORE0检测到CORE1挂...
<3>[20866.897017] INFO: rcu_sched detected stalls on CPUs/tasks:<3>[20866.897049] 1: (1 GPs behind) idle=369/140000000000000/0 softirq=593036/593037 fqs=221951 <3>[20866.897057] (detected by 3, t=247997 jiffies, g=450146, c=450145, q=48413)<6>[20866.897072] Task dump for CPU 1:<...
Same issue on proxmox :( Originally posted by @polter05 in #1705 (comment) Home Assistant OS 9.5 Note: This is an issue which tracks CPU stalls on Proxmox. It is similar to #1705 which tracks such issues on VirtualBox, but likely a diffe...
linux RCU https://zhuanlan.zhihu.com/p/570218921 [RCU stall] RCU stall 分析,RCU stall 内核文档翻译 https://www.cnblogs.com/
root@OpenWrt:/# [ 184.045603] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 184.051575] rcu: 3-...0: (1 ticks this GP) idle=572/1/0x4000000000000000 softirq=5076/5076 fqs=935 [ 184.060757] (detected by 0, t=2102 jiffies, g=7101, q=25) ...
This just started happening to me this week on servers that have never seen a problem. Today four of my VMs are all console-locked with the "rcu_sched self-detected stalls on..." . Important note however, they are all RUNNING just fine, I just no longer have console access. It kind...
RK3588 NVR版本SDK编译的kernel出现rcu: INFO: rcu_sched detected stalls on CPUs/tasks问题。使用百度...
[ 0.286420] Detected VIPT I-cache on CPU2 [ 0.286439] CPU2: Booted secondary processor 0x0000000002 [0x410fd034] [ 0.372438] Detected VIPT I-cache on CPU3 [ 0.372457] CPU3: Booted secondary processor 0x0000000003 [0x410fd034] [ 0.372501] smp: Brought up 1 node, 4...
2.Run stress testing inside guest #stress --vm 4 --vm-bytes 256M --vm-keep 3.Wait for the testing Actual results: Guest got CPus/tasks stalls [ 466.877503] INFO: rcu_sched detected stalls on CPUs/tasks: [ 466.900303] (detected by 0, t=6004 jiffies, g=3829, c=3828, q=814) [ ...