[Vivid][SRU][PATCH 0/2] Fixes for LP: #1473883

[Chris J Arges]

BugLink: http://bugs.launchpad.net/bugs/1473883

[Impact]

While load/unload mlx4_core twice with SR-IOV mode enabled in host with
multiple Mellanox devices (some of them support SR-IOV and other don't) this
will lead to kernel panic.

[Fix]

commit 5114a04e6c73a0c6e74737e801b8a3b3d40c7e36
commit ed3d2276ef72be23c6367358d80004130d8c797d

$ git describe 5114a04e6c73a0c6e74737e801b8a3b3d40c7e36
ed3d2276ef72be23c6367358d80004130d8c797d
v4.1-rc6-1067-g5114a04
v4.1-rc6-1068-ged3d227

[Test Case]

1- add the "options mlx4_core num_vfs=60 port_type_array=2,2" to /etc/modprobe.d/mlx4_core.conf file.
2- unload mlx4_* kernel modules: modprobe -rv mlx4_en; modprobe -rv mlx4_ib; modprobe -rv mlx4_core;
3- load mlx4_en kernel module: modprobe -v mlx4_en
4- edit /etc/modprobe.d/mlx4_core.conf file and put "options mlx4_core num_vfs=60 port_type_array=2,2" in comment.
5 -repeat 2 and 3
6- will get the following call trace.

--

Carol L Soto (1):
  net/mlx4_core: double free of dev_vfs

Carol Soto (1):
  net/mlx4_core: need to call close fw if alloc icm is called twice

 drivers/net/ethernet/mellanox/mlx4/main.c | 2 ++
 1 file changed, 2 insertions(+)

-- 
1.9.1