lttng-smoke test failed on i386 4.18 kernel

There is one failure in the lttng-smoke test.

FAILED (did not trace any open system calls)

  == lttng smoke test of session create/destroy ==
  Session test-kernel-session created.
  Traces will be written in /tmp/lttng-kernel-trace-15702-session
  PASSED (lttng create)
  Session test-kernel-session destroyed
  PASSED (lttng destroy)

  == lttng smoke test list kernel events ==
  PASSED (lttng list --kernel)

  == lttng smoke test trace open/close system calls ==
  Session test-kernel-session created.
  Traces will be written in /tmp/lttng-kernel-trace-15702-session
  PASSED (lttng create)
  Kernel event open created in channel channel0
  Kernel event openat created in channel channel0
  Kernel event close created in channel channel0
  PASSED (lttng enable-event)
  Tracing started for session test-kernel-session
  PASSED (lttng start)
  Waiting for data availability.....
  Tracing stopped for session test-kernel-session
  PASSED (lttng stop)
  Session test-kernel-session destroyed
  PASSED (lttng destroy)
  FAILED (did not trace any open system calls)

  == lttng smoke test trace context switches ==
  Session test-kernel-session created.
  Traces will be written in /tmp/lttng-kernel-trace-15702-session
  PASSED (lttng create)
  Kernel event sched_switch created in channel channel0
  PASSED (lttng enable-event)
  Tracing started for session test-kernel-session
  PASSED (lttng start)
  Waiting for data availability.....
  Tracing stopped for session test-kernel-session
  PASSED (lttng stop)
  Session test-kernel-session destroyed
  PASSED (lttng destroy)
  Found 21349 dd and 73100 context switches
  PASSED (simple system call tracing with babeltrace)

  Summary: 13 passed, 1 failed

ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: linux-image-4.18.0-10-generic 4.18.0-10.11
ProcVersionSignature: User Name 4.18.0-10.11-generic 4.18.12
Uname: Linux 4.18.0-10-generic i686
NonfreeKernelModules: lttng_probe_writeback lttng_probe_workqueue lttng_probe_v4l2 lttng_probe_vmscan lttng_probe_udp lttng_probe_timer lttng_probe_sunrpc lttng_probe_statedump lttng_probe_sock lttng_probe_skb lttng_probe_signal lttng_probe_scsi lttng_probe_sched lttng_probe_regulator lttng_probe_rcu lttng_probe_random lttng_probe_printk lttng_probe_power lttng_probe_net lttng_probe_napi lttng_probe_module lttng_probe_kvm lttng_probe_kmem lttng_probe_jbd2 lttng_probe_irq lttng_probe_gpio lttng_probe_compaction lttng_probe_block lttng_probe_asoc lttng_ring_buffer_metadata_mmap_client lttng_ring_buffer_client_mmap_overwrite lttng_ring_buffer_client_mmap_discard lttng_ring_buffer_metadata_client lttng_ring_buffer_client_overwrite lttng_ring_buffer_client_discard lttng_tracer lttng_statedump lttng_kprobes lttng_clock lttng_lib_ring_buffer lttng_kretprobes
AlsaDevices:
 total 0
 crw-rw---- 1 root audio 116, 1 Nov 9 11:35 seq
 crw-rw---- 1 root audio 116, 33 Nov 9 11:35 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
ApportVersion: 2.20.10-0ubuntu13
Architecture: i386
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CurrentDmesg:

Date: Fri Nov 9 11:51:45 2018
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
MachineType: Dell Inc. PowerEdge R310
PciMultimedia:

ProcFB: 0 mgadrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.18.0-10-generic root=UUID=ded56b2d-3057-4d58-a1e5-422853291ffd ro console=ttyS0,115200n8
RelatedPackageVersions:
 linux-restricted-modules-4.18.0-10-generic N/A
 linux-backports-modules-4.18.0-10-generic N/A
 linux-firmware 1.175
RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/17/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.8.2
dmi.board.name: 05XKKK
dmi.board.vendor: Dell Inc.
dmi.board.version: A05
dmi.chassis.type: 23
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.8.2:bd08/17/2011:svnDellInc.:pnPowerEdgeR310:pvr:rvnDellInc.:rn05XKKK:rvrA05:cvnDellInc.:ct23:cvr:
dmi.product.name: PowerEdge R310
dmi.sys.vendor: Dell Inc.