Re: fio: rdma_create_event_channel fail

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I'm able to do ibstat and everything is up. I can do ibping between the
nodes and iSER is working properly. I have not done ib_write_bw but I can
try it tomorrow if you think it would help.

I included the entire message from fio. Can you give me some more
information about additional error messages you may needed.
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Robert LeBlanc
PGP Fingerprint 79A2 9CA4 6CC4 45DD A904  C70E E654 3BB2 FA62 B9F1


On Sun, Apr 3, 2016 at 11:57 AM, Logan Gunthorpe <logang@xxxxxxxxxxxx> wrote:
> Hi Robert,
>
> It looks like rdma_create_event_channel has failed which is a pretty basic
> part of the RDMA initialization. To me, this likely indicates your RDMA
> setup is broken. Do commands like ibstatus and ibv_devices report active
> interfaces? Do other RDMA test programs like ib_write_bw, etc (from the
> perftest package) work?
>
> It may be worth printing the errno with that error message, I may have time
> to make a patch to that effect tomorrow.
>
> Logan
>
>
> On 03/04/16 10:00 AM, Jens Axboe wrote:
>>
>> CC'ing Logan, who might have an idea.
>>
>>
>> On 03/31/2016 10:44 AM, Robert LeBlanc wrote:
>>>
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>>> Hash: SHA256
>>>
>>> When trying to use the RDMA engine and the example job for the server
>>> with the port set to an arbitrary value I get:
>>>
>>> # /home/rleblanc/fio/fio /home/rleblanc/fio/examples/rdmaio-server.fio
>>> receiver: (g=0): rw=read, bs=1M-1M/1M-1M/1M-1M, ioengine=rdma, iodepth=16
>>> fio-2.8-14-g23a8
>>> Starting 1 process
>>> fio: rdma_create_event_channel fail
>>> fio: io engine init failed. Perhaps try reducing io depth?
>>> fio: pid=18588, err=1/
>>>
>>> Setting I/O depth=1 only removed the corresponding message from the
>>> output.
>>> # uname -r
>>> 4.1.15.bs.ufd
>>>
>>> # rpm -qa | grep -E "ibverbs|rdmacm"
>>> libibverbs-devel-1.1.8-8.el7.x86_64
>>> librdmacm-1.0.21-1.el7.x86_64
>>> libibverbs-1.1.8-8.el7.x86_64
>>> librdmacm-devel-1.0.21-1.el7.x86_64
>>>
>>> I'm not sure what is wrong as this is the first time I've tried using
>>> the RDMA engine.
>>> - ----------------
>>> Robert LeBlanc
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>>
>>
>
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