Re: [PATCH] RDMA/rxe: Fix race condition in QP timer handlers

[Leon Romanovsky]

On Tue, Jan 27, 2026 at 09:27:27AM +0000, Zhijian Li (Fujitsu) wrote:
> 
> 
> On 25/01/2026 22:08, Leon Romanovsky wrote:
> >> Ensure the QP's reference count is maintained and its validity is checked
> >> within the timer callbacks by adding calls to rxe_get(qp) and corresponding
> >> rxe_put(qp) after use.
> >>
> >> Signed-off-by: Li Zhijian<lizhijian@xxxxxxxxxxx>
> > Fixes line?
> 
> I believe the following `Fixes` tag is appropriate, as this commit introduced
> the WARN_ON that now triggers:
>   
> Fixes: d94671632572 ("RDMA/rxe: Rewrite rxe_task.c")
>   
> However, I'm not entirely certain if this race condition also existed
> before this commit, as it involved a significant rewrite.

Let's include the most recent fix. It is unlikely that anyone is still
running such an old version of RXE.

Thanks

> 
> Thanks
> Zhijian
> 
> > 
> > Thanks