regression/tools/live intermitent failure on yocto with 2.11
While upgrading to 2.11 Alexander Kanavin observe intermittent failure for the live test.
With those issues addressed (patch is coming), I am still having two failures: # Failed test (../../../../../lttng-tools-2.11.0/tests/regression/tools/live/live_test.c:main() at line 707) # Got first packet index with offset 0 and len 4096 not ok 6 - Get metadata, received 0 bytes FAIL: tools/live/test_ust_tracefile_count 6 - Get metadata, received 0 bytes # Got first packet index with offset 0 and len 4096 not ok 6 - Get metadata, received 0 bytes FAIL: tools/live/test_ust 6 - Get metadata, received 0 bytes What's weird is that sometimes they pass. Could there be a race or some timing issue in the test?
Step to reproduce:
git clone https://github.com/PSRCode/poky-contrib/tree/live-test-failure-poky then setup a default build (with qemu x86_64 as target), 'bitbake core-image-sato-ptest', then 'runqemu kvm nographic'. Then log in as root (no password), change to /usr/lib/lttng-tools/ptest, and issue ./run-ptest. Then you should be able to see the failure. To exit qemu: ctrl-a x.