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3ec43c1b08
Moving to switchdev mode with ntuple offload on causes the kernel to
crash since fs->arfs is freed during nic profile cleanup flow.
Ntuple offload is not supported in switchdev mode and it is already
unset by mlx5 fix feature ndo in switchdev mode. Verify fs->arfs is
valid before disabling it.
trace:
[] RIP: 0010:_raw_spin_lock_bh+0x17/0x30
[] arfs_del_rules+0x44/0x1a0 [mlx5_core]
[] mlx5e_arfs_disable+0xe/0x20 [mlx5_core]
[] mlx5e_handle_feature+0x3d/0xb0 [mlx5_core]
[] ? __rtnl_unlock+0x25/0x50
[] mlx5e_set_features+0xfe/0x160 [mlx5_core]
[] __netdev_update_features+0x278/0xa50
[] ? netdev_run_todo+0x5e/0x2a0
[] netdev_update_features+0x22/0x70
[] ? _cond_resched+0x15/0x30
[] mlx5e_attach_netdev+0x12a/0x1e0 [mlx5_core]
[] mlx5e_netdev_attach_profile+0xa1/0xc0 [mlx5_core]
[] mlx5e_netdev_change_profile+0x77/0xe0 [mlx5_core]
[] mlx5e_vport_rep_load+0x1ed/0x290 [mlx5_core]
[] mlx5_esw_offloads_rep_load+0x88/0xd0 [mlx5_core]
[] esw_offloads_load_rep.part.38+0x31/0x50 [mlx5_core]
[] esw_offloads_enable+0x6c5/0x710 [mlx5_core]
[] mlx5_eswitch_enable_locked+0x1bb/0x290 [mlx5_core]
[] mlx5_devlink_eswitch_mode_set+0x14f/0x320 [mlx5_core]
[] devlink_nl_cmd_eswitch_set_doit+0x94/0x120
[] genl_family_rcv_msg_doit.isra.17+0x113/0x150
[] genl_family_rcv_msg+0xb7/0x170
[] ? devlink_nl_cmd_port_split_doit+0x100/0x100
[] genl_rcv_msg+0x47/0xa0
[] ? genl_family_rcv_msg+0x170/0x170
[] netlink_rcv_skb+0x4c/0x130
[] genl_rcv+0x24/0x40
[] netlink_unicast+0x19a/0x230
[] netlink_sendmsg+0x204/0x3d0
[] sock_sendmsg+0x50/0x60
Fixes:
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.