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Questions tagged [apic]

The APIC units are responsible for delivering interrupts from interrupt sources to interrupt destinations throughout the multiprocessor system.

The Advanced Programmable Interrupt Controller (APIC) is based on a distributed architecture in which interrupt control functions are distributed between two basic functional units, the local unit and the I/O unit. The local and I/O units communicate through a bus called the Interrupt Controller Communications (ICC) bus. The local APIC units also provide interprocessor interrupts (IPIs), which allow any processor to interrupt any other processor or set of processors.

More at Intel MultiProcessor Specification - http://www.intel.com/design/pentium/datashts/24201606.pdf

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Python read MP3 cover file

I am trying to read the cover from an MP3 file with the following code. import tkinter as tk from PIL import Image, ImageTk from io import BytesIO import mutagen from mutagen.id3 import APIC root = tk.Tk() image_bytes =…
Franc
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How to register an interrupt handler for x2APIC generated IPI?

I have enabled the x2APIC on the host OS and want to generate the IPI at the host level itself(and not inside a VM). To check if x2APIC is enabled or not, I run the following command: sudo rdmsr 0x1b // IA32_APIC_BASE MSR to check the x2APIC…
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IBM Cloud API Connect Secure Gateway

Recently, I started seeing an issue when trying to setup secure gateway within API Connect on IBM Cloud, I previously had it working but looks like they changed this wizard interface and its broken since then here is what I did to recreate the…
Progruma
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#GP on some ISRs, APIC and PIT not sending IRQs

I've been working on code to test the speed of the APIC using the PIT. There are several problems I can't figure out. First, when testing my ISRs for the two timers, I get general protection faults on the iretq instructions. Second, neither timer…
Jenifer De Jager
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Disable one time use on refresh tokens in Datapower/API Connect [OAuth2]?

We have an OAuth/OIDC service developed in API Connect/Datapower. When a user requests a new refresh_token - if any unexpected error occurs in the flow, the new refresh_token is not issued, and their existing refresh_token is revoked. This forces…
Adrian Milne
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APIC 2018.3.7 OVA: The Assembly part of API is not being deployed - has reverted to a much earlier version?

As of yesterday, when I publish the (current) Product and its API, the deployed Assembly is not updated and what is running is from an earlier state - most likely from early December. The APIC domain was created at the end of Nov, so what I is…
Hummingtop
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Importing an existing swagger to IBM API Connect and adding it to a product from CLI

I am working on publishing an existing swagger through API Connect. For that, i need to import an existing yaml file (Draft), available in my local folder, and add it to an existing product. However, i find the commands to create an api from…
Aman
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Unable to login to api connect through Node.js cli, though have access to API Connect portal

I am unable to login to APIConnect through command line, though i am able to successfully login to IBM API Connect portal (Signed-up on IBM Bluemix). Below are the s/w versions i am using: Windows 10, Node js v6.12.3, npm v3.10.10, apic …
Aman
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APIC 2018: How do I read the XML response from an Invoke policy, in a gateway script

I want to read a specific value in the XML returned by the APIC Invoke policy (from a SOAP service), in a gateway script. I have searched high and low. I have tried this and that from my searches. Result: I failed miserably. I thought…
Hummingtop
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How can I resolve "CALL rule is not operational" error when running custom policy on APIC?

I exported a policy from DataPower and imported it in APIC, it imported successfully but when I run it, I get the following…
Puggie
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Get PIC's Intrerrupt Mask Register (IMR) and Disable a special IRQ

I'm trying to know, how IRQs map to a special Interrupt Descriptor Table (IDT) entry from PIC perspective. The link here describes how to disable all the IRQs by setting 0xff as the Interrupt Mask Register by using 0x21 and 0xA1 bus lines. As I know…
Embrace
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IBM APIC 2018.1 connect with DataPower 7.5.2.0

We have new IBM APIC 2018.1 Management + Developer Portal which manage with IBM Cloud Manager. I try to add DataPower 7.5.2.0 gateway into Cloud Manager and it's return no error; I guess It's cannot connect to 5550 port. I read this topics…
Roman Pankratov
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Strange settings of IOAPIC in my vmware VM

I am checking my IOAPIC settings in my vmware VM (Ubuntu 16.10). Here is what I get from my own code of dumping IOAPIC registers and /proc/interrupts. Reg[0] = 0x00000000 Reg[1] = 0x00170011 Reg[2] = 0x00000000 Redir[12] = 2000000000000e4:…
wangt13
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Who and how vector numbers are generated in apic(advance programmable interrupt controller)?

Apic is used for giving interrupts to processor.so how io devices use it to produce interrupt and who generates vector number for selecting suitable interrupt handler and how apic differentiates between io devices?
karan sharma
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SSL issue while opening app on Bluemix

I have published an API on Bluemix. When I try to open the App URL on Safari or Chrome, it fails to establish a secure connection and gives the below error: apiconnect-****.apic.mybluemix.net didn’t accept your login certificate, or one may not…
Anuj
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