RE: I/O error on dd commands

[<Tomita.Haruo-IGagC74glE2s6Rmoc/2Z03gSJqDPrsil@public.gmane.org>]

Hi Max,

Thank you for your reply.
This issue reproduced vanilla 4.9-rc8.

> can you try to repro it with iSER ?

I'm sorry. I can't try iSER.

> what is your backing store device ?

I do now using TOSHIBA Enterprise SSD PX04PMB160.
https://toshiba.semicon-storage.com/ap-en/product/storage-products/enterprise-ssd.html

> is this happens in 1k bs only or in different bs as well ?

This issue is confirming the reproduction in 512k/1024k/2048k/4096k/8192k bs.
It occurs by more than one machine, so it isn't a failed of a NIC. 
LAN is a connection directly (It isn't a failed of a hub.)

> rxe_req.c |    9 +++++----
> 1 file changed, 5 insertions(+), 4 deletions(-)
> --- linux-4.9-rc7/drivers/infiniband/sw/rxe/rxe_req.c.orig      2016-12-05 10:11:38.000000000 +0900
> +++ linux-4.9-rc7/drivers/infiniband/sw/rxe/rxe_req.c   2016-12-05 10:15:43.000000000 +0900
> @@ -705,12 +705,12 @@ next_wqe:
>         skb = init_req_packet(qp, wqe, opcode, payload, &pkt);
>         if (unlikely(!skb)) {
>                 pr_err("qp#%d Failed allocating skb\n", qp_num(qp));
> -               goto err;
> +               goto err1;
>         }
> 
>         if (fill_packet(qp, wqe, &pkt, skb, payload)) {
>                 pr_debug("qp#%d Error during fill packet\n", qp_num(qp));
> -               goto err;
> +               goto err2;
>         }
> 
>         /*
> @@ -734,15 +734,16 @@ next_wqe:
>                         goto exit;
>                 }
> 
> -               goto err;
> +               goto err1;
>         }
> 
>         update_state(qp, wqe, &pkt, payload);
> 
>         goto next_wqe;
> 
> -err:
> +err2:
>         kfree_skb(skb);
> +err1:
>         wqe->status = IB_WC_LOC_PROT_ERR;
>         wqe->state = wqe_state_error;
> 

It's unrelated to this issue, please apply this patch.

thanks,
Haruo.

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