On 9/10/21 4:47 PM, Bob Pearson wrote:

On 9/10/21 3:23 PM, Bart Van Assche wrote:

quoted

On 9/10/21 12:38 PM, Pearson, Robert B wrote:

quoted

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

quoted

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.