linux-kernel - POWER9: duplicate interrupt line in /proc/interrupts, kernel problem or userspace problem?

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Message-ID: <c4e878ae-e97c-4826-9962-fab15d7da632@hogyros.de>
Date: Wed, 23 Jul 2025 19:48:45 +0900
From: Simon Richter <Simon.Richter@...yros.de>
To: linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: POWER9: duplicate interrupt line in /proc/interrupts, kernel problem
 or userspace problem?

Hi,

I have two lines starting with "LOC:" in /proc/interrupts, one with a 
comment "Local timer interrupts for timer event device", the other 
"Local timer interrupts for others".

This makes collectd unhappy, because it uses the first column as a 
unique identifier.

Is this column supposed to be unique? (i.e. is this a kernel bug, or 
should collectd expect this?)

    Simon