Re: "isert: isert_setup_id: rdma_bind_addr() failed: -19" spam, followed by Recursive Fault on reboot

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On Sun, 29 Jan 2017 09:39:39 +0200
Sagi Grimberg <sagi@xxxxxxxxxxx> wrote:

Hello, thank you very much for your help. I'm very sorry but I think
I've made too many changes to my system to recreate the problem.
I tried recreating my targtetcli config and downgrading
linux+userspace+firmware to the versions I used when it broke, but
never got this problem again :(

> > I'm trying (failing) to get iSER working. After rebooting with some
> > settings saved in targetcli, I got an endless stream of messages
> > like this:
> >
> > [  192.701299] isert: isert_setup_id: rdma_bind_addr() failed: -19
> > [  192.702733] isert: isert_setup_id: rdma_bind_addr() failed: -19
> > [  192.704021] isert: isert_setup_id: rdma_bind_addr() failed: -19
> > [  192.705458] isert: isert_setup_id: rdma_bind_addr() failed: -19
> > [  192.706979] isert: isert_setup_id: rdma_bind_addr() failed: -19  
> 
> You get -ENODEV errors because you don't have an RDMA device.
> This is probably due to the fact that the mlx5_ib (or mlx4_ib,
> depending on your device) is not loaded.
> 
> Can you try loading mlx[4|5]_ib module before you enable iser on
> a network portal?
> 
> I do see that mlx5 and mlx4 are requesting the mlx_ib module at probe
> time, I wander how that didn't happen on your system..
> 
> I didn't see a endless loop of this error? can you share your
> targetcli json?
> 
> > I tried deleting everything from targetcli, but the flood would not
> > stop. The ib_isert module did not unload. When rebooting I got a
> > "Recursive Fault" with a stacktrace inside configfs.
> >
> > I hope this is enough information to fix this bug. I assumed the
> > stacktrace would be saved to the log so I didn't write it down, and
> > I haven't been able to retrace all the wrong stuff I did trying to
> > make iSER work.
> >
> > Linux Version: Linux 4.8.15-2~bpo8+2 (Debian 8 Backports)  
> 
> Would it be possible to try with upstream kernel and report what you
> are seeing?

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