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([2600:1700:e321:62f0:329c:23ff:fee3:9d7c]) by smtp.gmail.com with ESMTPSA id d65sm9789045otb.17.2022.01.31.07.21.42 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 31 Jan 2022 07:21:44 -0800 (PST) Message-ID: Date: Mon, 31 Jan 2022 07:21:40 -0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0 Content-Language: en-US To: Thomas Gleixner References: <87mtjc2lhe.ffs@tglx> From: Guenter Roeck Subject: Re: [patch V3 28/35] PCI/MSI: Simplify pci_irq_get_affinity() In-Reply-To: <87mtjc2lhe.ffs@tglx> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Nishanth Menon , Mark Rutland , Stuart Yoder , linux-pci@vger.kernel.org, Will Deacon , Peter Ujfalusi , Ashok Raj , Jassi Brar , Sinan Kaya , Vinod Koul , Bjorn Helgaas , Megha Dey , Jason Gunthorpe , xen-devel@lists.xenproject.org, Kevin Tian , Arnd Bergmann , linuxppc-dev@lists.ozlabs.org, Alex Williamson , Cedric Le Goater , Santosh Shilimkar , Bjorn Helgaas , linux-arm-kernel@lists.infradead.org, Juergen Gross , Tero Kristo , Greg Kroah-Hartman , LKML , iommu@lists.linux-foundation.org, Marc Zygnier , dmaengine@vger.kernel.org, Robin Murphy Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On 1/31/22 03:27, Thomas Gleixner wrote: > On Sun, Jan 30 2022 at 09:12, Guenter Roeck wrote: >> On Fri, Dec 10, 2021 at 11:19:26PM +0100, Thomas Gleixner wrote: >> This patch results in the following runtime warning when booting x86 >> (32 bit) nosmp images from NVME in qemu. >> >> [ 14.825482] nvme nvme0: 1/0/0 default/read/poll queues >> ILLOPC: ca7c6d10: 0f 0b >> [ 14.826188] ------------[ cut here ]------------ >> [ 14.826307] WARNING: CPU: 0 PID: 7 at drivers/pci/msi/msi.c:1114 pci_irq_get_affinity+0x80/0x90 > > This complains about msi_desc->affinity being NULL. > >> git bisect bad f48235900182d64537c6e8f8dc0932b57a1a0638 >> # first bad commit: [f48235900182d64537c6e8f8dc0932b57a1a0638] PCI/MSI: Simplify pci_irq_get_affinity() > > Hrm. Can you please provide dmesg and /proc/interrupts from a > kernel before that commit? > Sure. Please see http://server.roeck-us.net/qemu/x86/. The logs are generated with with v5.16.4. Guenter