interrupt

I'd like to kill threads that are stuck in deadlock state. First, we can detect thread ids in deadlock state using the findDeadlockedThreads() method of the ThreadMXBean class in java.lang.management . Then, I'd like to kill the threads by thread ids, and thus I have two related questions: (1) How to get the control of a thread by thread id? (2) How to kill a blocked thread? I think that invokting interrupt() method will give an exception to the thread and will kill the thread. From the root threadgroup, you can have the Thread class enumerate all running threads . Then you can call Thread

I am reasonably new to the ARM architectures and I am trying to wrap my head around the wake up mechanism. So first of all I am finding it difficult to find good info on this. ARM's documentation seems to be very terse on the topic. What I'd like to understand is when the Cortex (particularly the M0 as that's what I am working with) will wake up. For reference, I have also consulted the following: What is the purpose of WFI and WFE instructions and the event signals? Why does the processor enter standby when using WFE instruction but not when using WFI instruction? The docs on the WFE

I am trying to run a simple multiple processes application in Python. The main thread spawns 1 to N processes and waits until they all done processing. The processes each run an infinite loop, so they can potentially run forever without some user interruption, so I put in some code to handle a KeyboardInterrupt: #!/usr/bin/env python import sys import time from multiprocessing import Process def main(): # Set up inputs.. # Spawn processes Proc( 1).start() Proc( 2).start() class Proc ( Process ): def __init__ ( self, procNum): self.id = procNum Process.__init__(self) def run ( self ): doneWork

From java docs on Future.cancel() boolean cancel(boolean mayInterruptIfRunning) Attempts to cancel execution of this task. This attempt will fail if the task has already completed, has already been cancelled, or could not be cancelled for some other reason. If successful, and this task has not started when cancel is called, this task should never run. If the task has already started, then the mayInterruptIfRunning parameter determines whether the thread executing this task should be interrupted in an attempt to stop the task. My question is what does cancel do if mayInterruptIfRunning is false

I have a DLL which contains a thread function whose pseudocode looks like: volatile BOOL stopped = FALSE; void StopEverything() { /* Enter critical section */ stopped = TRUE; /* Leave critical section */ } void workerThreadFunc() { Initialize(); /* Checkpoint 1 */ if(stopped) { /* Do cleanup */ return; } doLaboriousTask1(); /* Checkpoint 2 */ if(stopped) { /* Do cleanup */ return; } doLaboriousTask2(); Uninitialize(); } And in the code which uses this DLL, the cleanup function looks like: void cleanup() { StopEverything(); /* Wait for all threads to exit */ /* Do other cleanup */ } My question

I have a driver code with handler function and thread function of request_threaded_irq similar to this: irq-handler fn() { /*disable device interrupt*/ i2c read from register; set disable bit to client-device-interrupt i2c write back; return IRQ_WAKe_THREAD; } irq-thread fn() { i2c read from register; .... .... /*enable device interrupt*/ i2c read from register; set enable bit to client-device-interrupt i2c write back; /*Rest of the operation*/ .......... .......... return IRQ_HANDLED; } I have few question with respect to above implentation. Will 2 i2c operation in "handler fn" takes

TL;DR : Using linux kernel real time with NO_HZ_FULL I need to isolate a process in order to have deterministic results but /proc/interrupts tell me there is still local timer interrupts (among other). How to disable it? Long version : I want to make sure my program is not being interrupt so I try to use a real time linux kernel. I'm using the real time version of arch linux (linux-rt on AUR) and I modified the configuration of the kernel to selection the following options : CONFIG_NO_HZ_FULL=y CONFIG_NO_HZ_FULL_ALL=y CONFIG_RCU_NOCB_CPU=y CONFIG_RCU_NOCB_CPU_ALL=y then I reboot my computer to