Re: [PATCH for-rc v3 0/6] RDMA/rxe: Various bug fixes.

Bob Pearson
2021-09-10T21:50:19Z

On 9/10/21 4:47 PM, Bob Pearson wrote:
> On 9/10/21 3:23 PM, Bart Van Assche wrote:
>> On 9/10/21 12:38 PM, Pearson, Robert B wrote:
>>> 1. Which rdma-core are you running? Out of box or the github tree?
>>
>> I'm using the rdma-core package included in openSUSE Tumbleweed. blktests
>> pass with that rdma-core package against older kernel versions so I think
>> the rdma-core package is fine. The version number of the rdma-core package
>> I'm using is as follows:
>> $ rpm -q rdma-core
>> rdma-core-36.0-1.1.x86_64
>>
>> The rdma tool comes from the iproute2 package:
>> $ rpm -qf /sbin/rdma
>> iproute2-5.13-1.1.x86_64
>>
>>> 3. Where did you get the kernel bits? Which git tree? Which branch?
>>
>> Hmm ... wasn't that mentioned in my previous email? I mentioned a commit
>> SHA and these SHA numbers are unique and unambiguous. Anyway: commit
>> 2169b908894d comes from the for-rc branch of the following git repository:
>> git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git.
>>
>> Bart.
>>
>>
>
> OK I checked out the kernel with the SHA number above and applied the patch series
> and rebuilt and reinstalled the kernel. I checked out v36.0 of rdma-core and rebuilt
> that. rdma is version 5.9.0 but I doubt that will have any effect. My startup script
> is
>
> export LD_LIBRARY_PATH=/home/bob/src/rdma-core/build/lib/:/usr/local/lib:/usr/lib
>
>
>
> sudo ip link set dev enp0s3 mtu 8500
>
> sudo ip addr add dev enp0s3 fe80::0a00:27ff:fe94:8a69/64
>
> sudo rdma link add rxe0 type rxe netdev enp0s3
>
>
> I am running on a Virtualbox VM instance of Ubuntu 21.04 with 20 cores and 8GB of RAM.
>
> The test looks like
>
> sudo ./check -q srp/001
>
> srp/001 (Create and remove LUNs) [passed]
>
> runtime 1.174s ... 1.236s
>
> There were no issues.
>
> Any guesses what else to look at?
>
> Thanks,
>
> Bob
>

The 8500 is not required. It runs fine with 4K MTU just as well.