Comment 0 for bug 1982748

Issue found with Bionic Azure 5.4.0-1088.93~18.04.1

It looks like test will get interrupted across all Azure instances.

Test log:
 START ---- ---- timestamp=1658735692 localtime=Jul 25 07:54:52
 Persistent state client._record_indent now set to 1
 Test has timeout: 900 sec.
        START ubuntu_ftrace_smoke_test.ftrace-smoke-test ubuntu_ftrace_smoke_test.ftrace-smoke-test timestamp=1658735692 timeout=900 localtime=Jul 25 07:54:52
 Persistent state client._record_indent now set to 2
 Persistent state client.unexpected_reboot now set to ('ubuntu_ftrace_smoke_test.ftrace-smoke-test', 'ubuntu_ftrace_smoke_test.ftrace-smoke-test')
 Waiting for pid 3735 for 900 seconds
 Running '/home/azure/autotest/client/tests/ubuntu_ftrace_smoke_test/ubuntu_ftrace_smoke_test.sh'
 PASSED (CONFIG_FUNCTION_TRACER=y in /boot/config-5.4.0-1088-azure)
 PASSED (CONFIG_FUNCTION_GRAPH_TRACER=y in /boot/config-5.4.0-1088-azure)
 PASSED (CONFIG_STACK_TRACER=y in /boot/config-5.4.0-1088-azure)
 PASSED (CONFIG_DYNAMIC_FTRACE=y in /boot/config-5.4.0-1088-azure)
 PASSED all expected /sys/kernel/debug/tracing files exist
 PASSED (function_graph in /sys/kernel/debug/tracing/available_tracers)
 PASSED (function in /sys/kernel/debug/tracing/available_tracers)
 PASSED (nop in /sys/kernel/debug/tracing/available_tracers)
 PASSED (tracer function can be enabled)
(Test stops here, system stop responding)

dmesg, syslog and console log didn't provide useful information.

Please find attachment for the console log.