linux-kernel - Re: [PATCH v3 17/17] rv: Add opid per-cpu monitor

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Message-ID: <b9b66047398157a26ea78017d3b36482fb67226d.camel@redhat.com>
Date: Fri, 18 Jul 2025 12:26:56 +0200
From: Gabriele Monaco <gmonaco@...hat.com>
To: Nam Cao <namcao@...utronix.de>
Cc: linux-kernel@...r.kernel.org, Steven Rostedt <rostedt@...dmis.org>, 
	linux-trace-kernel@...r.kernel.org, linux-doc@...r.kernel.org, Tomas Glozar
	 <tglozar@...hat.com>, Juri Lelli <jlelli@...hat.com>, Clark Williams
	 <williams@...hat.com>, John Kacur <jkacur@...hat.com>
Subject: Re: [PATCH v3 17/17] rv: Add opid per-cpu monitor

On Wed, 2025-07-16 at 11:38 +0200, Nam Cao wrote:
> And the monitor reports some errors on riscv64 with PREEMPT_RT=y:
> 
> root@...cv:~/rv-tests# uname -a
> Linux riscv 6.16.0-rc6-00054-g7590637d9ca2 #87 SMP PREEMPT_RT Wed Jul
> 16 11:26:00 CEST 2025 riscv64 GNU/Linux
> root@...cv:~/rv-tests# stress-ng --cpu-sched -1
> stress-ng: info:  [452] defaulting to a 1 day run per stressor
> stress-ng: info:  [452] dispatching hogs: 4 cpu-sched
> [  614.390462] rv: monitor opid does not allow event irq_entry on
> state in_irq

Finally managed to bootstrap a riscv VM, that is an error I thought I'd
fixed and I'm genuinely surprised I didn't notice on other
architectures.

Thanks again for catching it though!
Gabriele