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2431925866
If we try to set VFs rate on a VF (not PF) net device, the kernel
will be crash. The commands are show as below:
$ echo 2 > /sys/class/net/$MLX_PF0/device/sriov_numvfs
$ ip link set $MLX_VF0 vf 0 max_tx_rate 2 min_tx_rate 1
If not applied the first patch ("net/mlx5: Avoid panic when setting
vport mac, getting vport config"), the command:
$ ip link set $MLX_VF0 vf 0 rate 100
can also crash the kernel.
[ 1650.006388] RIP: 0010:mlx5_eswitch_set_vport_rate+0x1f/0x260 [mlx5_core]
[ 1650.007092] do_setlink+0x982/0xd20
[ 1650.007129] __rtnl_newlink+0x528/0x7d0
[ 1650.007374] rtnl_newlink+0x43/0x60
[ 1650.007407] rtnetlink_rcv_msg+0x2a2/0x320
[ 1650.007484] netlink_rcv_skb+0xcb/0x100
[ 1650.007519] netlink_unicast+0x17f/0x230
[ 1650.007554] netlink_sendmsg+0x2d2/0x3d0
[ 1650.007592] sock_sendmsg+0x36/0x50
[ 1650.007625] ___sys_sendmsg+0x280/0x2a0
[ 1650.007963] __sys_sendmsg+0x58/0xa0
[ 1650.007998] do_syscall_64+0x5b/0x180
[ 1650.009438] entry_SYSCALL_64_after_hwframe+0x44/0xa9
Fixes:
|
||
|---|---|---|
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
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.