[Bug 1862936] [NEW] Error: Rotation feature not supported by the kernel tracer.

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$ dpkg -l | grep ltt
ii  liblttng-ctl0:amd64                  2.11.1-1                            amd64        LTTng control and utility library
ii  liblttng-ust-ctl4:amd64              2.11.0-1                            amd64        LTTng 2.0 Userspace Tracer (trace control library)
ii  lttng-modules-dkms                   2.10.8-1ubuntu2                     all          Linux Trace Toolkit (LTTng) kernel modules (DKMS)
ii  lttng-tools                          2.11.1-1                            amd64        LTTng control and utility programs

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu Focal Fossa (development branch)
Release:        20.04
Codename:       focal

How to reproduce:

$ sudo lttng create foobar
Session foobar created.
Traces will be output to /root/lttng-traces/foobar-20200212-123955

$ sudo lttng enable-event --kernel sched_switch
Kernel event sched_switch created in channel channel0

$ sudo lttng start
Tracing started for session foobar

$ dd if=/dev/zero bs=4096 count=100000 | cat | cat | cat | dd bs=4096 > /dev/null
100000+0 records in
100000+0 records out
409600000 bytes (410 MB, 391 MiB) copied, 0.664467 s, 616 MB/s
100000+0 records in
100000+0 records out
409600000 bytes (410 MB, 391 MiB) copied, 0.664758 s, 616 MB/s

$ sudo lttng stop
Waiting for data availability.
Tracing stopped for session foobar

$ sudo lttng destroy
Error: Rotation feature not supported by the kernel tracer. during the destruction of session "foobar"

** Affects: ltt-control (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: ltt-control (Ubuntu Focal)
     Importance: Undecided
         Status: New


** Tags: patch
-- 
Error: Rotation feature not supported by the kernel tracer.
https://bugs.launchpad.net/bugs/1862936
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