Date: Fri, 29 Sep 2023 04:32:30 +0000 From: John <jwd@freebsd.org> To: "Freebsd-Net@FreeBSD.org" <freebsd-net@freebsd.org> Subject: kernel crash: devctl set driver -f mlx5_core6 ppt Message-ID: <ZRZTXuCS9GS-pu4Q@FreeBSD.org>
next in thread | raw e-mail | index | archive | help
Hi Folks, Working against 13.2-STABLE. I have a chance to get some bhyve VMs running on new hardware with Mellanox 100Gb/s cards. After creating VF entries with iovctl at boottime, a devctl command to detach the mlx5 driver and attach the ppt driver causes the kernel to crash: # devctl set driver -f mlx5_core6 ppt backtrace here: https://people.freebsd.org/~jwd/mlx5.dump.txt If I create the VF in ppt mode I can correctly detach the ppt driver and attach the mlx5 driver. Also of note, if multiple VFs are created and a single VF is targeted for the detach operation, all VFs are operated on. It seems the VFs are not seen as individual entities but a group of children in detach_method(). Thoughts? Thanks, John
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?ZRZTXuCS9GS-pu4Q>