On 2020/3/6 上午9:51, Herbert Xu wrote:
On Wed, Feb 26, 2020 at 03:12:06PM +0800, Zhangfei Gao wrote:
When uacce parent device module is removed, user app may
still keep the mmaped area, which can be accessed unsafely.
When rmmod, Parent device driver will call uacce_remove,
which unmap all rema
On Wed, Feb 26, 2020 at 03:12:06PM +0800, Zhangfei Gao wrote:
> When uacce parent device module is removed, user app may
> still keep the mmaped area, which can be accessed unsafely.
> When rmmod, Parent device driver will call uacce_remove,
> which unmap all remaining mapping from user space for s
When uacce parent device module is removed, user app may
still keep the mmaped area, which can be accessed unsafely.
When rmmod, Parent device driver will call uacce_remove,
which unmap all remaining mapping from user space for safety.
VM_FAULT_SIGBUS is also reported to user space accordingly.
Su
