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From: Peter Zijlstra <peterz@infradead.org>
To: Khalid Ali <khaliidcaliy@gmail.com>
Cc: dave.hansen@linux.intel.com, luto@kernel.org, tglx@linutronix.de,
	mingo@redhat.com, bp@alien8.de, x86@kernel.org, hpa@zytor.com,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] x86/mm: Fix log overwrite in CPA check_conflict()
Date: Fri, 20 Jun 2025 11:01:40 +0200	[thread overview]
Message-ID: <20250620090140.GR1613376@noisy.programming.kicks-ass.net> (raw)
In-Reply-To: <20250619174305.897-1-khaliidcaliy@gmail.com>

On Thu, Jun 19, 2025 at 05:42:41PM +0000, Khalid Ali wrote:
> From: Khalid Ali <khaliidcaliy@gmail.com>
> 
> On certain configurations (e.g. custom builds), check_conflict()
> may produce a large number of warnings, flooding the kernel log
> and overwriting earlier messages.
> 
> Observed warning:
> 
>   CPA  protect  Rodata RO: 0xffff888022a75000 - 0xffff888022a75fff
>         PFN 22a75 req 8000000000000023 prevent 0000000000000002

That's not good. Your system is sick, limiting the warns isn't making
that better.



  reply	other threads:[~2025-06-20  9:01 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-06-19 17:42 Khalid Ali
2025-06-20  9:01 ` Peter Zijlstra [this message]
2025-06-20 18:20   ` Khalid Ali

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