指在irq_handle之后重新开启硬件irq的中断下半部实现，常见有
问题2现象:通过mpstat 查看cpu软锁中断值,发现逻辑cpu编号14和15号的soft值异常高,相对其他平均不到0.5%.idle值很低. 解决方法:开启irqbalence服务,重启主机后恢复正常.
Server becomes unresponsive frequently or softlockup when ip_recv_error() got interrupted by hard IRQ Solution Verified- UpdatedJune 13 2024 at 9:33 PM- English Issue Server becomes unresponsive frequently: Raw PID: 1234 TASK: ffff8f0d121ae300 CPU: 5 COMMAND: "task" #0 [ffff8f189ff48e48...
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pin A routed to IRQ 16 Region 0: Memory at f7d00000 (64-bit, non-prefetchable) [size=32K] Capabilities: [50] MSI: Enable- Count=1/8 Maskable- 64bit+ Address: 0000000000000000 Data: 0000 -- Subsystem: 1043:8488 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr...
Z945X electric soft seal flange gate valve 1.product imformation 2.Purpose This valve is used as a cutoff and adjusting equipment for the various water supply and drainage pipelines in building, chemical, medicine, textile, ship and industries. 3.Performance paraments PN: PN...
Keil编译器中:void IRQ_Eint0(void) __irq; 但是其意义一样,它所完成的任务是标识该函数为中断函数,在编译器编译是调用此函数时,先保护函数入口现场,然后执行中断函数,函数执行完毕,恢复中断现场,这整个过程不需要用户重新编写代码来完成,由编译器自动完成。因而这也给不具备中断嵌套功能的ARM系统带来了问题,若使...
enable_irq_wake(irq);有嵌套层次,多次执行后如果去执行一次disable_irq_wake,结果不能够disable irq wake, 要enable和disable的次数相同 static inline int enable_irq_wake(unsigned int irq) { return set_irq_wake(irq, 1); } static inline int disable_irq_wake(unsigned int irq) ...