Hi Lei, On 02.09.24 12:03, Lei Yang wrote: > Hi Dragos > > QE tested this series with mellanox nic, it failed with [1] when > booting guest, and host dmesg also will print messages [2]. This bug > can be reproduced boot guest with vhost-vdpa device. > > [1] qemu) qemu-kvm: vhost VQ 1 ring restore failed: -1: Operation not > permitted (1) > qemu-kvm: vhost VQ 0 ring restore failed: -1: Operation not permitted (1) > qemu-kvm: unable to start vhost net: 5: falling back on userspace virtio > qemu-kvm: vhost_set_features failed: Device or resource busy (16) > qemu-kvm: unable to start vhost net: 16: falling back on userspace virtio > > [2] Host dmesg: > [ 1406.187977] mlx5_core 0000:0d:00.2: > mlx5_vdpa_compat_reset:3267:(pid 8506): performing device reset > [ 1406.189221] mlx5_core 0000:0d:00.2: > mlx5_vdpa_compat_reset:3267:(pid 8506): performing device reset > [ 1406.190354] mlx5_core 0000:0d:00.2: > mlx5_vdpa_show_mr_leaks:573:(pid 8506) warning: mkey still alive after > resource delete: mr: 000000000c5ccca2, mkey: 0x40000000, refcount: 2 > [ 1471.538487] mlx5_core 0000:0d:00.2: cb_timeout_handler:938:(pid > 428): cmd[13]: MODIFY_GENERAL_OBJECT(0xa01) Async, timeout. Will cause > a leak of a command resource > [ 1471.539486] mlx5_core 0000:0d:00.2: cb_timeout_handler:938:(pid > 428): cmd[12]: MODIFY_GENERAL_OBJECT(0xa01) Async, timeout. Will cause > a leak of a command resource > [ 1471.540351] mlx5_core 0000:0d:00.2: modify_virtqueues:1617:(pid > 8511) error: modify vq 0 failed, state: 0 -> 0, err: 0 > [ 1471.541433] mlx5_core 0000:0d:00.2: modify_virtqueues:1617:(pid > 8511) error: modify vq 1 failed, state: 0 -> 0, err: -110 > [ 1471.542388] mlx5_core 0000:0d:00.2: mlx5_vdpa_set_status:3203:(pid > 8511) warning: failed to resume VQs > [ 1471.549778] mlx5_core 0000:0d:00.2: > mlx5_vdpa_show_mr_leaks:573:(pid 8511) warning: mkey still alive after > resource delete: mr: 000000000c5ccca2, mkey: 0x40000000, refcount: 2 > [ 1512.929854] mlx5_core 0000:0d:00.2: > mlx5_vdpa_compat_reset:3267:(pid 8565): performing device reset > [ 1513.100290] mlx5_core 0000:0d:00.2: > mlx5_vdpa_show_mr_leaks:573:(pid 8565) warning: mkey still alive after > resource delete: mr: 000000000c5ccca2, mkey: 0x40000000, refcount: 2 > Can you provide more details about the qemu version and the vdpa device options used? Also, which FW version are you using? There is a relevant bug in FW 22.41.1000 which was fixed in the latest FW (22.42.1000). Did you encounter any FW syndromes in the host dmesg log? Thanks, Dragos
