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Peter Anvin" Subject: Re: [PATCH] PCI/MSI: Handle the NOMASK flag correctly for all PCI/MSI backends Date: Sun, 30 Mar 2025 16:57:17 +0200 Message-ID: <20250330145719.32280-1-spasswolf@web.de> X-Mailer: git-send-email 2.49.0 In-Reply-To: <87v7rxzct0.ffs@tglx> References: Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Provags-ID: V03:K1:nkWDZ3wl89O1RHvPpDsRC7wrZxkyQ6Ar8ilNgBDFHoUFD2MBzVs 1nPuJFIQE+DweCB5he01EvPkRIoBrglw4JAuqeK+j/W3pVnn5GXnHymx9dKP7Kw9mEj/IKc 53NhvcKE0M70gKCVKzI0DHtN/RCBJ4CU/a3pFI+KKhabc6ZujcgQsaD8saibq531fJb313o ngyCJ1po4towA43WKAxjg== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:wJCifl4CpFM=;pIs1w/sJ/84spZPO2nx3agN2Pnx Ae8afovBO+2C+P4j7qkZ9pgPzgAhOgIxrjQTbSs3FvZvqSMxOFa1GjqdsCGhHLmS+rGwJp0OU MUTOCOjyvLotFw5PIxK7yPe3oFmXj+FpeipFrzGVqKkW5rGMKXELshSiQo+roGQQA1/BJV5K3 BskBSxNgb1X/Eme532dvlvgGny2myzvVXnbrcxFO84DUwgAJIP2qL4S1E9zvMJ4MKSI0WwJ6a eMpS5tvDgmHoftVHgAimZHaAbImiD9HIK6mXUGtRm5NNnADE3fIu9YMV1Xyppg0Mt0EGk9aPb oFbS8zsafr92I5ut4O81OeNVfsperzs+vzixbHe1/QnC12JS8k/qGc8KZXQAwbpXvWK+RtzkK FxRqQWxdcZykhklJF4NdjYUJwH+EI3jGjKvieKnHRHzJGl07+wC3ynLm2MnMpCwl5CTGsrzmU 1RjyQ+qV4MPzsJbeQAT5OWlQEJcqszewE4y3MRVz/FhkDTkig3cev3MYkoXctX+k35sgznXEi uMasZSj+hi1J1/y/r/r5g3R8EyMSvQFF6mxaBB1LLy9AA3Vc4tAG25Mwmv//ovNKYtI/9gUAg aS3GdPEOvTxGu08TsgCPIHzk9VMluzl1o4pdWU9IE9dY2304pxhjf6eb7OelxSU6UJyfwGpEu zJXhkMAoNirJnAVVGhRWQ9gtBzJQ/01g6I+du8mOa+IGBZeH+hLZcdLFDMWPThuSCSexSlbQC 0QCCUGMe+X7OeOFavH2taPu7OI+O1CgtX2x6iee/okPXNNauQsEmxW/zXvJvMm0clnkJ/THlO vFSLygdTDRjEqpJE47mcZiEom36ssyoI3mi1yFXz7fIvW8hbAKexz/fkTR/rd8KRoadT+fhKv SnCdruPmrJa8PJ4RIyuxk8nlis8rfO0BV4is745M7yd4VRZ764VC3aLc+3QW38IVs25gqmPAU jLn/zGJjcu0ODi0+ju0O0s9LHoW3u3rtrJIZJYDt7ix85CFrE+lpdBjUxpRdolCisnwNj8qEU iSC3io79qQ8jnQ49NVnLRzLRTc/N8dWnkD8Y710xKpnV3Za1gCDzqmqMtNyed2shlFFaojvkb PEXcc2i6tRCqMMnmBYMDw9PzLd+ez0FDSRaaKuqLodZbkOUDvLY8fbNNBOowYRQzlVvW7Topc DgvlX4tX81mWj8B1ZmpDmiTcTRauPdMoPqNjJgPqGo4OeF5DxAGXLGPalRnTXBRyr47x1dCax bg957YOIqkN0Xc7Zb9bBVJQ0VEvn5vwmPvGleEyEa2w17kfPUWMdQUw0Yh5JxDP6zvDFysY7t xPiptEL4ng68xMP1yLr6xBt25fcTB14AzMe35aA8ia8ReZvclaX1b2/CMx/e9ZisNK0RWlza9 mTP5V/4/ao+gUm1gK1EaUsDs1NhsAadeIkSzkNrh5Amqs17DD+Q+3Bu0VsX40dTs5tddg1c3/ RhqF70w== This also fixes a timeout error in the nvme driver introduced by commit c3164d2e0d1. In linux-next-2025032{5,6} booting hangs in about 50% of boot attempts with the message: nvme nvme1: I/O tag 4 (1004) QID 0 timeout, completion polled nvme nvme0: I/O tag 20 (1014) QID 0 timeout, completion polled after some more time I get a message about task udev-worker blocking for more than 61 seconds and get dropped to an initramfs shell. I bisected this to commit c3164d2e0d1. As this error does not occur in linux-next-20250328, I searched for commits that might fix this error and indeed cherrypicking commit dbc5d00074fd on top of linux-next-20250326 fixes the issue for me. No xen or kvm was used in my case. Bert Karwatzki