Questions tagged [irq]

An IRQ (interrupt request) is the process where a device triggers a hardware interrupt on a processor. When this happens, the processor stops (and saves) the current executing environment, and services the hardware's request. Furthermore, it is possible to prioritize these requests go service some before others.

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Manjaro no irq handler for vector

When booting and at shutdown my relatively fresh install of Manjaro (uname -r: 5.9.16-1-MANJARO) on my HP Spectre x360 Convertible 13-ac0XX I get a an error message: [ +0,000425] __common_interrupt: ...
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why do i see the message "do_IRQ: 5.33 No irq handler for vector" on my dell xps 15 9550?

Every time I suspend/unsuspend my laptop (Dell XPS 15 9550) I see this kernel log: Message from syslogd@cruz-XPS-15-9550 at Sep 14 07:58:31 ... kernel:[ 725.565407] do_IRQ: 5.33 No irq handler for ...
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No irq handler for vector (irq -1)

I recently installed Centos 6.5, however, I am constantly flooded by messages like: Message from syslogd@localhost at May 18 15:38:34 ... kernel:do_IRQ: 0.123 No irq handler for vector (irq -1) I ...
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Why is my device IRQ not appearing?

I have an USB external audio interface that constantly throws BSoD with IRQL_NOT_LESS_OR_EQUAL when plugged in. (The vendor drivers are definitely to blame here, but they are unmaintained and I need ...
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Is it possible to assign IRQs in Windows 10?

For some PCI devices, I use specific IRQs to call interrupt service routines. If our video card is using the standard "Microsoft Basic Display Adapter" driver, our interrupt service routines run ...
Brian's user avatar
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Slow SATA I/O after kernel oops (SuperMicro X11SBA-LN4F)

I am in the process of replacing my (Gentoo) Linux router with a new one built using a SuperMicro X11SBA-LN4F. I used my existing Gentoo Linux router's configs as a starting point (including the ...
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Clarify misunderstanding about USB hosts and IRQs

I have a long-suffering usb sound card (Creative X-Fi HD). Its manual said the following: Ensure that the headset/soundcard uses a USB Host that is on an individual IRQ slot. This means that no ...
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Serial port IRQ sharing on Linux

I was never able to use two serial ports for I/O on Linux that shared the same IRQ, although the serial driver has "IRQ sharing" enabled. Some BIOS simply don't have enough IRQs to give to each port, ...
nlucas's user avatar
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System interrupts/DPC/ISR appear to be causing sound distortion in Windows 10. How can I determine the root cause?

I am having problems with audio distortion in Windows 10, but it varies in severity between apps. Foobar2000 is very heavily distorted on most tracks, with buzzes and skips. Windows Media Player also ...
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interrupt priority control - Windows 10

I am trying to figure out best interrupt priority for devices in Windows 10. I was able to find that users had good experience prioritizing cmos and gpu. That help me a lot reduce input lag. I have ...
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Trouble with additional NIC: MSI MS250 PRO-VD + Logilink PC0029A

I recently changed Mobo/CPU/RAM on a PC where I used to have a dual-gigabit connection. With the previous configuration, using the integrated LAN controller and a LogiLink PC0029A PCI-e expansion ...
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My notebook Lenovo G780 lags. I use Linux Mint

I use Linux Mint 18.2 Sonya \n \l Here is my journalctl -b -p err: -- Logs begin at Thu 2017-10-05 17:07:22 MSK, end at Thu 2017-10-05 20:47:24 MSK Oct 05 17:07:22 ivan-Lenovo-G780 kernel: ata3: ...
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How to change IRQ priorities on Ubuntu?

I'm trying to figure out how to change the IRQ priorities for devices on Ubuntu (the specific release I have is 11.10). I found this question and answer which says it can be done, but it appears to ...
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How to fix hard lockups (mentioning some IRQ) in my Eeepc laptop (running Linux)?

My EeePC 1015PEM tends to block sometimes (approximately once per 2 days). Even _ cursor in (modesetted) text mode does not blink. After rebooting (unless battery and adaptor was removed) it shows the ...
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