On Thu, Jul 03, 2025 at 02:47:09AM -0400, Michael S. Tsirkin wrote: > On Thu, Jul 03, 2025 at 11:58:26AM +0800, Wenli Quan wrote: > > Hello all: > > > > I am reporting a issue where the host system crashed when attempting to add > > a > > vDPA device using the command: > > > > # uname -r > > > > 6.16.0-rc2 > > > > # modprobe vdpa > > > > # modprobe vhost-vdpa > > > > # modprobe mlx5-vdpa > > > > # echo 1 > /sys/class/net/ens7f1np1/device/sriov_numvfs > > > > # lspci |grep -i Mell > > > > 61:00.0 Ethernet controller: Mellanox Technologies MT43244 BlueField-3 > > integrated ConnectX-7 network controller (rev 01) > > > > 61:00.1 Ethernet controller: Mellanox Technologies MT43244 BlueField-3 > > integrated ConnectX-7 network controller (rev 01) > > > > 61:00.2 DMA controller: Mellanox Technologies MT43244 BlueField-3 SoC > > Management Interface (rev 01) > > > > b5:00.0 Ethernet controller: Mellanox Technologies MT2892 Family [ConnectX-6 > > Dx] > > > > b5:00.1 Ethernet controller: Mellanox Technologies MT2892 Family [ConnectX-6 > > Dx] > > > > b5:03.2 Ethernet controller: Mellanox Technologies ConnectX Family mlx5Gen > > Virtual Function > > > > #vdpa dev add name vdpa0 mgmtdev pci/0000:b5:03.2 device_features > > 0x300c31829 > > > > > > Then the host creatshed, please check the crash dump in attachment. > > Thanks for the report Wenli. I was able to reproduce this. I will prepare a fix.
Is this a new test BTW? > > > .... > > Thanks a lot for the report! How reproducible is this? Bisectable to > a specific commit? > This probably comes from my pre-create VQ series. I'll work with internal verification to improve coverage here. Thanks, Dragos
