UCX: fix #1462 (v1.2)

[evgeny-leksikov]

• fix uninitialized UCT err handler in UCP
• increased UD timeout, fix variable name

@yosefe i think this should be in release

[mellanox-github]

Test PASSed.
See http://hpc-master.lab.mtl.com:8080/job/hpc-ucx-pr/3565/ for details (Mellanox internal link).

[mellanox-github]

Test FAILed.
See http://bgate.mellanox.com/jenkins/job/gh-ucx-pr/1645/ for details.

[mellanox-github]

Test FAILed.
See http://bgate.mellanox.com/jenkins/job/gh-ucx-pr/1648/ for details.

[shamisp]

seems like it causes segfault on ARM

14:36:27 [----------] 1 test from udx/test_ucp_perf
14:36:27 [ RUN      ] udx/test_ucp_perf.envelope/0
14:36:27 [cavium:41271:0] Caught signal 11 (Segmentation fault: address not mapped to object at address 0x5800000009)
15:57:45 Build timed out (after 100 minutes). Marking the build as failed.
15:57:45 Build was aborted
15:57:45 TAP Reports Processing: START
15:57:45 Looking for TAP results report in workspace using pattern: **/*.tap
15:57:48 make: *** [test] Terminated

[yosefe]

@shamisp it's an issue already fixed on master branch, will port fix to v1.2 next week

[shamisp]

So, I guess we have to wait for the bugfix to be ported before we merge this one, right ?

[yosefe]

bot:retest

[mellanox-github]

Test PASSed.
See http://bgate.mellanox.com/jenkins/job/gh-ucx-pr/1663/ for details.

[mellanox-github]

Test PASSed.
See http://hpc-master.lab.mtl.com:8080/job/hpc-ucx-pr/3580/ for details (Mellanox internal link).

[yosefe]

fixes #1462