Public bug reported:
ubuntu_kernel_selftests.ftrace times out always after the same step when
running on hirsute/linux-riscv on the regression tests infrastructure
(QEMU VM).
Log from the tests running with hirsute/linux-riscv 5.11.0-1018.19:
18:02:56 INFO | START ubuntu_kernel_selftests.ftrace
ubuntu_kernel_selftests.ftrace timestamp=1629568976 timeout=1800
localtime=Aug 21 18:02:56
18:02:56 DEBUG| Persistent state client._record_indent now set to 2
18:02:56 DEBUG| Persistent state client.unexpected_reboot now set to
('ubuntu_kernel_selftests.ftrace', 'ubuntu_kernel_selftests.ftrace')
18:02:56 DEBUG| Waiting for pid 29328 for 1800 seconds
18:02:56 WARNI| System python is too old, crash handling disabled
18:02:56 DEBUG| Running 'sudo sh -c 'echo 1 >
/proc/sys/net/ipv4/conf/all/accept_local''
18:02:56 DEBUG| Running 'sudo make -C linux/tools/testing/selftests
TARGETS=ftrace run_tests'
18:02:57 DEBUG| [stdout] make: Entering directory
'/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests'
18:02:57 DEBUG| [stdout] make --no-builtin-rules ARCH=riscv -C ../../..
headers_install
18:02:57 DEBUG| [stdout] make[1]: Entering directory
'/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux'
18:03:13 DEBUG| [stdout] INSTALL ./usr/include
18:03:14 DEBUG| [stdout] make[1]: Leaving directory
'/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux'
18:03:14 DEBUG| [stdout] make[1]: Entering directory
'/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/ftrace'
18:03:14 DEBUG| [stdout] make[1]: Nothing to be done for 'all'.
18:03:14 DEBUG| [stdout] make[1]: Leaving directory
'/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/ftrace'
18:03:15 DEBUG| [stdout] make[1]: Entering directory
'/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/ftrace'
18:03:15 DEBUG| [stdout] TAP version 13
18:03:15 DEBUG| [stdout] 1..1
18:03:15 DEBUG| [stdout] # selftests: ftrace: ftracetest
18:03:15 ERROR| [stderr] perl: warning: Setting locale failed.
18:03:15 ERROR| [stderr] perl: warning: Please check that your locale settings:
18:03:15 ERROR| [stderr] LANGUAGE = (unset),
18:03:15 ERROR| [stderr] LC_ALL = (unset),
18:03:15 ERROR| [stderr] LC_CTYPE = "C.UTF-8",
18:03:15 ERROR| [stderr] LANG = "en_US.UTF-8"
18:03:15 ERROR| [stderr] are supported and installed on your system.
18:03:15 ERROR| [stderr] perl: warning: Falling back to the standard locale
("C").
18:03:16 DEBUG| [stdout] # === Ftrace unit tests ===
18:03:21 DEBUG| [stdout] # [1] Basic trace file check [PASS]
18:03:58 DEBUG| [stdout] # [2] Basic test for tracers [PASS]
18:04:04 DEBUG| [stdout] # [3] Basic trace clock test [PASS]
18:04:10 DEBUG| [stdout] # [4] Basic event tracing check [PASS]
18:04:16 DEBUG| [stdout] # [5] Change the ringbuffer size [PASS]
18:04:21 DEBUG| [stdout] # [6] Snapshot and tracing setting [PASS]
18:04:27 DEBUG| [stdout] # [7] trace_pipe and trace_marker [PASS]
18:04:32 DEBUG| [stdout] # [8] Test ftrace direct functions against tracers
[UNRESOLVED]
18:04:33 DEBUG| [stdout] # [9] Test ftrace direct functions against kprobes
[UNSUPPORTED]
18:04:38 DEBUG| [stdout] # [10] Generic dynamic event - add/remove kprobe
events [FAIL]
18:04:39 DEBUG| [stdout] # [11] Generic dynamic event - add/remove synthetic
events [UNSUPPORTED]
18:04:39 DEBUG| [stdout] # [12] Generic dynamic event - selective clear
(compatibility) [UNSUPPORTED]
18:04:40 DEBUG| [stdout] # [13] Generic dynamic event - generic clear event
[UNSUPPORTED]
18:04:46 DEBUG| [stdout] # [14] event tracing - enable/disable with event level
files [PASS]
18:04:54 DEBUG| [stdout] # [15] event tracing - restricts events based on pid
notrace filtering [PASS]
18:05:00 DEBUG| [stdout] # [16] event tracing - restricts events based on pid
[PASS]
18:05:07 DEBUG| [stdout] # [17] event tracing - enable/disable with subsystem
level files [PASS]
18:05:14 DEBUG| [stdout] # [18] event tracing - enable/disable with top level
files [PASS]
18:05:21 DEBUG| [stdout] # [19] Test trace_printk from module [PASS]
18:05:39 DEBUG| [stdout] # [20] ftrace - function graph filters with stack
tracer [PASS]
18:05:50 DEBUG| [stdout] # [21] ftrace - function graph filters [PASS]
18:06:04 DEBUG| [stdout] # [22] ftrace - function pid notrace filters [PASS]
18:06:18 DEBUG| [stdout] # [23] ftrace - function pid filters [PASS]
18:06:28 DEBUG| [stdout] # [24] ftrace - stacktrace filter command [PASS]
18:06:38 DEBUG| [stdout] # [25] ftrace - function trace with cpumask [PASS]
18:07:09 DEBUG| [stdout] # [26] ftrace - test for function event triggers
[FAIL]
18:07:28 DEBUG| [stdout] # [27] ftrace - function trace on module [PASS]
18:07:37 INFO | Timer expired (1800 sec.), nuking pid 29328
18:07:37 INFO | ERROR ubuntu_kernel_selftests.ftrace
ubuntu_kernel_selftests.ftrace timestamp=1629569257 localtime=Aug 21
18:07:37 Unhandled AutoservRunError: Could not kill 29328
None
Traceback (most recent call last):
File "/home/ubuntu/autotest/client/job.py", line 510, in _runtest
parallel.fork_waitfor_timed(self.resultdir, pid, timeout)
File "/home/ubuntu/autotest/client/parallel.py", line 112, in
fork_waitfor_timed
utils.nuke_pid(pid)
File "/home/ubuntu/autotest/client/shared/utils.py", line 1214, in nuke_pid
raise error.AutoservRunError('Could not kill %d' % pid, None)
AutoservRunError: Could not kill 29328
None
18:07:37 INFO | END ERROR ubuntu_kernel_selftests.ftrace
ubuntu_kernel_selftests.ftrace timestamp=1629569257 localtime=Aug 21
18:07:37
For reference, the two failures are reported on bug 1923682 and bug
1923683.
** Affects: ubuntu-kernel-tests
Importance: Undecided
Status: New
** Affects: linux-riscv (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-riscv (Ubuntu Hirsute)
Importance: Undecided
Status: Confirmed
** Tags: 5.11 hirsute riscv64 sru-20210816
** Also affects: linux-riscv (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux-riscv (Ubuntu Hirsute)
Importance: Undecided
Status: New
** Changed in: linux-riscv (Ubuntu Hirsute)
Status: New => Confirmed
** Tags added: 5.11 hirsute riscv64 sru-20210816
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https://bugs.launchpad.net/bugs/1941898
Title:
ubuntu_kernel_selftests.ftrace timeout on H/riscv
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