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[77.7.99.87]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-49b963c3c0asm17275445e9.10.2026.08.27.20.44.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 27 Aug 2026 20:44:17 -0700 (PDT) Date: Fri, 28 Aug 2026 05:43:45 +0200 From: Karl Mehltretter To: Will Deacon Cc: Catalin Marinas , Mark Rutland , David Hildenbrand , Ryan Roberts , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] arm64: mm: Walk page tables with interrupts disabled in show_pte() Message-ID: References: <20260815211316.974-1-kmehltretter@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Thu, Aug 27, 2026 at 03:30:24PM +0100, Will Deacon wrote: > > @@ -151,6 +152,8 @@ static void show_pte(unsigned long addr) > > return; > > } > > > > + guard(irqsave)(); > > + > > pr_alert("%s pgtable: %luk pages, %llu-bit VAs, pgdp=%016lx\n", > > mm == &init_mm ? "swapper" : "user", PAGE_SIZE / SZ_1K, > > vabits_actual, mm_to_pgd_phys(mm)); > > Curious, but why did you add the guard before the print? Good point. No need to cover the print, I'll move it below in v2. Thanks, Karl