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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?YJoWiyJ9oqZvpGRccxHEBCl3/IClpi3/ZIO4uZUZzl6WDPkZx12Ww2OqnRxn?= =?us-ascii?Q?xkYr9v64VS0WgFqceapTloDYGNjWzY1iK3AxmbPHy8mmKiAfbTS/D+iU5TDC?= =?us-ascii?Q?jPljigo42BSbTAj7muNFI9x02ZjErig/+WB8ZPO94BuIs6Ktt6LezHuo6BEt?= =?us-ascii?Q?Jq1ghrwjsOBoS8dzeBe8cWTVgfxaPmVu+7ofkQhEZpEXgvWOCOe4z8TqhW3i?= =?us-ascii?Q?Cs3okuW2F9eAczPtg7SnMjsIy2HEH2uNPY2txX+/CFDAY3teMor2Gcdemzxr?= =?us-ascii?Q?lQUUnRWIb6SU9qmYlhEUcFxRabdvbeoBxW16uQD2Wp8gS3G3sLXcL6692HGG?= =?us-ascii?Q?aOLu3JwVU38aNypHjc2ny4wboOzs7UPluiMQN7EBclELfXnhKzvt18hUs7Px?= =?us-ascii?Q?fh5a/7GOMJHoCucuP/Qm0RwRdgeGQJEiiKv/GAHCfu7TT2lDhw5uFCob9xuy?= =?us-ascii?Q?ZerUnA32z+YpA/G+H+PiMhrtBXkQOeqQhTEiqQRwaXI74kS3vUh4Luf4haBY?= =?us-ascii?Q?kTLferHTAKTq+eJaOZeNy8D1OfJBqiHTs3Gpi4RbemfnTaJJkvTxvpsE+le3?= =?us-ascii?Q?+n2K1xxKSS5/Fp4uP0WKOVBplw/v7sNpdVj/Kknmb0khypsBb3heu/z2kS+Q?= =?us-ascii?Q?UCRMommAdp0BCKI+8nX9qK5QTOzTuzJ3x7ax6unRAlEodfWmOvMNPUd67846?= =?us-ascii?Q?jkPidL1bU6j6fWKPiMbBeOGi8JhQFsgJvn/028auCoP0+ki9GOpAvR7aGKTv?= =?us-ascii?Q?njP3ObUXbLMolRlaxby4XBOiYFrajvI5f0uMH+IkKB0EWqlS8gwYM6VXlYBs?= =?us-ascii?Q?bSwrb8HkV84nWmZpx/+7fs/CMKxELvPqBHRDLxjGM1d1WYDxgsQvGlHJ0zX1?= =?us-ascii?Q?bZYB49qkhGkFO5846USYuwSavtUE3O00gYbcWXcOZj5jVFWR6mw7+t8MrLxA?= =?us-ascii?Q?wrsA/G4ozKUXGeILvh9WPQfSsMuRxx7LjbW8+6wygu3Ay7FXF1hUrXsw0CwO?= =?us-ascii?Q?7xNfaCx5EWBMXckxsGZ164Mq33AN10zbu28Kl2wjRrS0ZygumjEbsH0VFTga?= =?us-ascii?Q?fBrWXneuG4eWScAqc3+qEvu3yhLjDdqjeWY3XChONy/mcsNvvl7xnTWVyq+a?= =?us-ascii?Q?NH/r20lnB7X7L+QXypgJnw4oPUZOgn/EaPKNNnqRiPW0FefZd/1qMvC0KFiA?= =?us-ascii?Q?h1SyZVLqjWGMaeZ/vmDon3oxvPmF+jeKP8twJVTxN0cPPcqZgGS6oR1k46qK?= =?us-ascii?Q?HaXOpMTv/5hniG7uyM8kUQ7tzan5SCZLDbe4lrlErnNYJAktwN8YNalQ499L?= =?us-ascii?Q?SPnyhgaesMpym0NDH8/a8ehYFj18reIeY20mSeqB5h7BgVD16QJVLpgDjPLq?= =?us-ascii?Q?6Tt+VeY9hJglGsSluxRgeMrQiHX8HWXyF/hVGodInhub1Bty7GPIsWUpJ06U?= =?us-ascii?Q?zz86VdYnkFs36B52B3ZIkYvqQerboJYttxXddDm8e2B46KerTU0EhVBv+sEW?= =?us-ascii?Q?OgYxMs4sShJo7LENASMFf7juY9/Zgy3b1C1wGZaMF7WHERm1iL9l8SX+bBZO?= =?us-ascii?Q?2vUXUiNDY1Vs60Q6cGnbj+O/yiDYf/RvmW96AJbu94BytfFq9U+kuyoHfDWk?= =?us-ascii?Q?kvv74Kal4uzprwx1DkLrqlXBOYYaUmm8KadLa7Ty6wHxecmwHd9Bu1B/6mlK?= =?us-ascii?Q?hnlyIwANfn8PJjqBb7wH8AJUejgv6oL+xGqf3n0KO7yu8lHY?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: b7625c8b-5f5a-4084-3e1a-08deb5ce7d26 X-MS-Exchange-CrossTenant-AuthSource: LV8PR12MB9620.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 May 2026 17:46:00.7977 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: xMQ0HseW3leoBPErJKQMOwzVGlGFkx7QQeyFElplzOWuV7abXvNB/f+L3okyGhlf X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA0PPFD7DCFAC03 On Sun, May 10, 2026 at 02:23:03PM -0700, Nicolin Chen wrote: > In kdump cases, the crashed kernel's CDs and page tables can be corrupted, > which could trigger event spamming. Also, we cannot serve page requests. > > Skip the EVTQ/PRIQ setup entirely rather than enabling then disabling them. > > Also add some inline comments explaining that. > > Fixes: b63b3439b856 ("iommu/arm-smmu-v3: Abort all transactions if SMMU is enabled in kdump kernel") > Cc: stable@vger.kernel.org # v6.12+ > Suggested-by: Kevin Tian > Reviewed-by: Kevin Tian > Signed-off-by: Nicolin Chen > --- > drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 43 +++++++++++++-------- > 1 file changed, 27 insertions(+), 16 deletions(-) Reviewed-by: Jason Gunthorpe Jason