Re: [PATCH 0/2] smbdirect: don't hang on netdev reconfiguration

[Ammar Ratnani <ammrat13@gmail.com>]

Thank you for the very quick response, Stefan!

> Given you have some automation to reproduce it I'm
> wondering if you could also test the iwarp case, see
> https://lore.kernel.org/linux-rdma/20260805000159.321645-2-yunseong.kim@est.tech/

I tried running my setup for iWARP. I used the old "bad" kernel, and the
only thing I changed was that I used an siw device instead of an rxe. I
do not get a hang in that case. To be more precise, I see the following
at the end of dmesg:

    [   40.006460] siw0: Port: 1 Link DOWN
    [   40.012912] siw0: Port: 1 Link ACTIVE

But I don't see any message of the form "INFO: task ... blocked for more
than ... seconds." Additionally, I'm able to list and read a file off
the CIFS mount, even after bringing the interface down and up.

For this test, I used commit 2beb1b31a12b ("Merge tag 'bpf-fixes' of
git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf"). This is a later
tree than what I used in my last email, but I confirmed that I get the
same behavior I described in that email.

Thank you,
- Ammar Ratnani