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Which stack is used by Interrupt Handler - Linux

linux,linux-kernel,stack,interrupt-handling,top-halves
In a multitasking system when any hardware generates a interrupt to a particular CPU, where CPU can be performing either of below cases unless it is already serving a ISR: User mode process is executing on CPU Kernel mode process is executing on CPU Would like to know which stack...

Interrupt Descriptor Table Gate

assembly,x86,operating-system,interrupt-handling,protected-mode
I've written this code to create a sample IDT and load it in to the proper register. I've checked Intel System programming guides for proper structures, and yet I can't get interrupts working. While running kernel code in Bochs, and triggering interrupt (using __asm__ ("int $32"); I get a log...

how to observe interrupts in windows or linux ubuntu 14.04

interrupt,interrupt-handling,interruptions
everybody i want to observe interrupt handling in my system, now i'm using windows 8.1, i can use a linux ubuntu 14.04.1 on Vmware virtual machine too. any information about interrupt handling , counting them and watching their processing is useful. is there any application that do this monitoring? please...

Retrieving keyboard interrupt result in mfc

c++,mfc,keyboard,interrupt-handling,pagedown
I have CListCtrl and I'm trying to handle some keyboard buttons such as page-up / page-down etc. I'm using OnLvnKeydown handler. My problem is retrieving the item's index AFTER the keyboard interrupt. For instance, if item 1 is marked and I press page-down I want to show the details of...

How is IRQ serviced in Linux when pre-emption is disabled?

linux,linux-kernel,interrupt-handling
I've read in some books that for servicing an interrupt the data around CPU is stored into stack and the current process in preempted. Now, If the kernel is non-preemptive or preemption is disabled. How does preemption happen and ISR() serviced ? Can somebody explain me this or point me...

What is this concept of Pending Interrupts

x86,interrupt,interrupt-handling,microprocessors,isr
I am unable to fathom the term Pending Interrupts. I mean, the way I see asynchronous events is like "Time, tide and Interrupts" wait for none. Then what is this pending interrupts. How can I service a request that has come in the past, which has gone. Can someone please...