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[34.76.240.140]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-493bef17c82sm31881885e9.1.2026.07.01.02.58.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Jul 2026 02:58:54 -0700 (PDT) Date: Wed, 1 Jul 2026 09:58:50 +0000 From: Mostafa Saleh To: Nicolin Chen Cc: will@kernel.org, robin.murphy@arm.com, jgg@nvidia.com, joro@8bytes.org, praan@google.com, kees@kernel.org, baolu.lu@linux.intel.com, kevin.tian@intel.com, miko.lenczewski@arm.com, linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev, linux-kernel@vger.kernel.org, stable@vger.kernel.org, jamien@nvidia.com Subject: Re: [PATCH rc v7 0/7] iommu/arm-smmu-v3: Fix device crash on kdump kernel Message-ID: References: Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Tue, Jun 30, 2026 at 12:27:32PM -0700, Nicolin Chen wrote: > (I think Jason has answered most of the questions here.) > > On Tue, Jun 30, 2026 at 01:17:30PM +0000, Mostafa Saleh wrote: > > For example, patch 4 disables the EVTQ to avoid events as there might > > be a lot, why are they not fatal also? > > FWIW, the PATCH-4 doesn't disable the EVTQ: EVTQ is disabled in > kdump case prior to the series; PATCH-4 just makes sure it won't > get enabled transiently. Yes, I meant the patch disabling it even transiently because of DMA faults, which was confusing to me because I though they are fatal anyway, but I see Jason’s explanation now. Thanks, Mostafa > > Nicolin