On 31-Mar-19 19:10, Shamir Rabinovitch wrote: > the uverbs_attr_bundle with the ucontext is sent down to the drivers > ib_x destroy path as ib_udata. next patch will use the ib_udata to > free the drivers destroy path from the dependency in 'uobject->context' > as we already did for the create path. > > Signed-off-by: Shamir Rabinovitch <shamir.rabinovitch@xxxxxxxxxx> Hi Shamir, When running over for-next branch (with this patch), it looks like the driver udata passed to dereg_mr callback is corrupted (would expect it to be cleared), other callbacks seem fine. All fields are set to values that look like pointers to me. Do you have any idea whether there might be something wrong with this flow?