Re: Possible race in mlx5_ib.ko

2017-08-20 Thread Leon Romanovsky
On Fri, Aug 18, 2017 at 06:17:15PM +0300, Anton Volkov wrote: > Hello. > > While searching for races in the Linux kernel I've come across > "drivers/infiniband/hw/mlx5/mlx5_ib.ko" module. Here are questions that I > came up with while analyzing results. Lines are given using the info from > Linux v

Possible race in mlx5_ib.ko

2017-08-18 Thread Anton Volkov
Hello. While searching for races in the Linux kernel I've come across "drivers/infiniband/hw/mlx5/mlx5_ib.ko" module. Here are questions that I came up with while analyzing results. Lines are given using the info from Linux v4.12. Consider the following case: Thread 1: Thread 2: