From: Logan Gunthorpe <logang@deltatee.com>
To: Jens Axboe <axboe@kernel.dk>,
Robert LeBlanc <robert@leblancnet.us>,
fio@vger.kernel.org
Subject: Re: fio: rdma_create_event_channel fail
Date: Sun, 3 Apr 2016 11:57:49 -0600 [thread overview]
Message-ID: <5701599D.2090209@deltatee.com> (raw)
In-Reply-To: <57013E24.8090607@kernel.dk>
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:
>> -----BEGIN PGP SIGNED MESSAGE-----
>> 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
>> PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1
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>> Version: Mailvelope v1.3.6
>> Comment: https://www.mailvelope.com
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>> -----END PGP SIGNATURE-----
>> --
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>
>
next prev parent reply other threads:[~2016-04-03 17:57 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-31 16:44 fio: rdma_create_event_channel fail Robert LeBlanc
2016-04-03 16:00 ` Jens Axboe
2016-04-03 17:57 ` Logan Gunthorpe [this message]
2016-04-03 22:38 ` Robert LeBlanc
2016-04-04 16:22 ` Logan Gunthorpe
2016-04-04 17:43 ` Robert LeBlanc
2016-04-04 18:17 ` Logan Gunthorpe
2016-04-04 18:48 ` Robert LeBlanc
2016-04-03 22:39 ` Robert LeBlanc
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