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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: QA8luEPjzamz+XWd85oUYJIiqJAi1OoM5QL739SwP+QqFK9hZ00k1uTgI7nzj4lTmxS5d1bbjVtZl5u2O68mYApz3Dl7qnhl7FxFV2X3KvkxO0/Zt/k8LsbeMymSlmM+izH7tas404ta3wcma9DBoil93MFCFXdxXCNgrjwJWIcNhiVFnIU5VfWrV7oDWgt/tqjnUhEgt7sr/STpJ13aPnJ3HbF5YqyvAs3yUo45OPGScx37LSv34E5bv5+tWz+n/TD1kBPnoZrARXuE98oRismSKXbT3H/pZbi20NHccM986vFB4ktLnTlP7XZsjT4frcYE3SL7ZJ+xINesOHVy4I0C0bpVGGZVR0SkFbZygdeRtw2G19vrujaTKMeNkZZgc5T8zgTZz2f25ZIGrbKExJNZAl4Dm8JgA1DJilT0Sx+GV4q2TlCH1dW0ly2Bzlts X-ExternalRecipientOutboundConnectors: 0bc7f26d-0264-416e-a6fc-8352af79c58f X-Auto-Response-Suppress: DR, OOF, AutoReply X-OriginatorOrg: virtuozzo.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 Oct 2026 09:24:18.8246 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e2d6f135-9ee2-4220-17a2-08df359e68c8 X-MS-Exchange-CrossTenant-Id: 0bc7f26d-0264-416e-a6fc-8352af79c58f X-MS-Exchange-CrossTenant-AuthSource: MI3PEPF00008556.eurprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: Internet X-MS-Exchange-Transport-CrossTenantHeadersStamped: GV4PR08MB703865 > Only the automatic num-queues value is capped at VHOST_BLK_MAX_QUEUES, > an explicit one is taken as is. The kernel vhost-blk device has that > many virtqueues and rejects any vq beyond them, so realize fails with > an error that does not point at num-queues: >=20 > qemu-system-x86_64: vhost_set_vring_call failed: No buffer space availa= ble (105) > qemu-system-x86_64: vhost-blk: vhost initialization failed: No buffer s= pace available >=20 > Check num-queues against the limit up front instead. >=20 > https://virtuozzo.atlassian.net/browse/VSTOR-107537 >=20 > Fixes: 0ff3cb5ff28f ("block: add vhost-blk backend") > Signed-off-by: Alexander Ivanov Sashiko has reviewed this patch and found no issues. It looks great! --=20 Sashiko AI review =C2=B7 https://sashiko.vzint.dev/#/patchset/2026102909230= 1.3286535-1-alexander.ivanov@virtuozzo.com?part=3D2