[PVE-User] do_IRQ: No irq handler for vector

[Alex Chekholko]

Hi Marco,

I have seen this on various kernel versions (CentOS / Debian) and on
various hardware; my understanding is that it is safe to ignore.

Regards,
Alex

On Mon, Mar 2, 2020 at 3:50 AM Marco Gaiarin <gaio at sv.lnf.it> wrote:

>
> I've setup an home server, using an old HP ProLiant ML110G6 server,
> with PVE6, kernel 5.3.18-2-pve.
>
>
> I reveive, spuriously, logs like:
>
>  root at ino:~# grep do_IRQ /var/log/kern.log
>  Mar  1 05:10:51 ino kernel: [197698.269626] do_IRQ: 3.40 No irq handler
> for vector
>  Mar  1 08:12:52 ino kernel: [208619.012511] do_IRQ: 2.41 No irq handler
> for vector
>  Mar  1 11:59:10 ino kernel: [222196.730017] do_IRQ: 3.40 No irq handler
> for vector
>  Mar  1 17:09:00 ino kernel: [240787.084289] do_IRQ: 2.41 No irq handler
> for vector
>  Mar  1 17:19:10 ino kernel: [241396.356441] do_IRQ: 0.41 No irq handler
> for vector
>  Mar  1 23:33:00 ino kernel: [263826.632318] do_IRQ: 1.40 No irq handler
> for vector
>  Mar  2 00:08:51 ino kernel: [265976.985582] do_IRQ: 3.41 No irq handler
> for vector
>  Mar  2 05:40:21 ino kernel: [285866.764386] do_IRQ: 1.41 No irq handler
> for vector
>  Mar  2 08:48:00 ino kernel: [297125.421168] do_IRQ: 2.40 No irq handler
> for vector
>  Mar  2 08:52:01 ino kernel: [297366.060392] do_IRQ: 2.41 No irq handler
> for vector
>  Mar  2 11:32:01 ino kernel: [306965.868404] do_IRQ: 0.39 No irq handler
> for vector
>
> Server work as expected, without any trouble, crash, ...
>
>
> AFAI've understood, first numer is the core (i have 4), second is the
> interrupt vector.
>
> Googling around i've hit:
>
>         https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1781016
>
> and effectively i've many 'serial' USB interfaces connected (2 USB
> serial port, an APC UPS, a GSM dongle).
>
>
> I've tried to, using the irq vecrot, to understand the peripheral, but
> the command proposed:
>
>         grep 35 /sys/kernel/debug/irq/irqs/*
>
> does not work, there's no more '/sys/kernel/debug/irq/irqs/*' interface
> in sysfs.
>
>
> Someone have some hint? Thanks.
>
> --
> dott. Marco Gaiarin                                     GNUPG Key ID:
> 240A3D66
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>
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