尽管rcu_assign_pointer() 和 rcu_dereference() 理论上可用于构造任何可以想象的受 RCU 保护的数据结构,但实际上使用更高级别 封装通常会更好。因此,rcu_assign_pointer() 和 rcu_dereference() 原语已嵌入 Linux 列表操作 API 的特殊 RCU 变体中。 Linux 有 种双向链表变体,循环结构 list_head 和线性结构 hl...
软中断不只包括了刚刚所讲的硬件设备中断处理程序的下半部。一些内核自定义的时间也属于软中断,比如内核调度和RCU锁 (Read-Copy Update 的缩写,RCU 是 Linux 内核中最常用的锁之一)等。 四、查看软中断和内核线程 1、查看软中断 Ubuntu 18.04 [root@localhost ~]# cat /proc/softirqs CPU0 CPU1 CPU2 CPU3...
Red Hat Enterprise Linux 8 Issue How do I configure panic on rcu_stall messages? What is the use ofkernel.panic_on_rcu_stallparameter? How to setpanic_on_rcu_stallparameter ? Host displays rcu_stall messages. How to generate vmcore automatically?
If you want to run Linux on an M1 Mac today, your best choice continues to beAsahi Linux. Users willing to walk on leading, bleeding technology's razor edge can try the latestAsahi Linux update with Mac Studio, Bluetooth, and M2 support. But, as the developers warn you, "This is even...
8 Linux OOM disk I/O. Also: swap, what is it good for? 345 What are the functional differences between .profile .bash_profile and .bashrc 32 How to get the Linux OOM killer to not kill my process? 4 Linux OOM-killer acting despite plenty available memory 0 Adjust Lo...
config RCU_FANOUT int "Tree-based hierarchical RCU fanout value" range 2 64 if 64BIT range 2 32 if !64BIT Therefore, without 64BIT, the maximum value is 32, but we had 64 set on the .config, which would make it inconsistent. Bonuses make olddefconfig sets every option to thei...
Is Parallel Programming Hard, And, If So, What Can You Do About It? 2024 pdf epub mobi 电子书 著者简介 Paul McKenney is a Distinguished Engineer and CTO of Linux at IBM's Linux Technology Center (LTC). He is the maintainer of the Linux kernel's implementation of RCU and a contributo...
RCU 总结 读端应该开销极小:cache miss, cacheline contention 读端嵌套 读端原语应该可以在所有上下文中使用 存在担保 Reference linux/Documentation/RCU What is RCU?.txt A Tour Through RCU's Requirements Introduction to RCU What is RCU, Fundamentally? - LWN ...
Solved: HI everybody, I'm trying to bring up with my test board. I have 2 board. one is working well, but other is not. basic setting ; I.MX6Q, SD
[ 0.001791] rcu: Max phase no-delay instances is 1000. [ 0.002539] EFI services will not be available. [ 0.002685] smp: Bringing up secondary CPUs ... [ 0.003029] Detected VIPT I-cache on CPU1 [ 0.003095] cacheinfo: Unable to detect cache hierarchy for CPU 1 [...