| 2023-08-02 18:45:36 |
Roxana Nicolescu |
bug |
|
|
added bug |
| 2023-08-02 18:45:47 |
Roxana Nicolescu |
tags |
|
focal ftrace sru-20230710 |
|
| 2023-09-06 02:16:42 |
Po-Hsu Lin |
tags |
focal ftrace sru-20230710 |
5.15 arm64 focal sru-20230710 ubuntu-kselftests-ftrace |
|
| 2023-09-06 02:25:59 |
Po-Hsu Lin |
summary |
ftrace:test.d--event--subsystem-enable.tc fails on focal:linux-hwe-5.15 |
ftrace:test.d--event--subsystem-enable.tc fails with timeout on focal:linux-hwe-5.15 ARM64 |
|
| 2023-09-06 02:26:08 |
Po-Hsu Lin |
tags |
5.15 arm64 focal sru-20230710 ubuntu-kselftests-ftrace |
5.15 arm64 focal sru-20230710 sru-20230807 ubuntu-kselftests-ftrace |
|
| 2023-09-06 02:27:40 |
Po-Hsu Lin |
description |
First time seen this since ftrace refactor
http://10.246.75.167/2023.07.10/focal/linux-hwe-5.15/5.15.0-79.86~20.04.2/sru-generic-64k-metal-wright-kernel.arm64-ubuntu_kselftests_ftrace-log.html |
First time seen this since ftrace refactor out from ubuntu_kernel_selftests to ubuntu-kselftests-ftrace
Issue found on ARM64 nodes with both generic / generic-64k kernel.
Partial test log:
Running './ftracetest -vvv test.d/event/subsystem-enable.tc'
=== Ftrace unit tests ===
....
[1] event tracing - enable/disable with event level files
+ [ 2 -eq 1 ]
+ [ -f set_event_pid ]
+ echo
+ [ -f set_ftrace_pid ]
+ echo
+ [ -f set_ftrace_notrace ]
+ echo
+ [ -f set_graph_function ]
+ echo
+ tee set_graph_function set_graph_notrace
+ [ -f stack_trace_filter ]
+ echo
+ [ -f kprobe_events ]
+ echo
+ [ -f uprobe_events ]
+ echo
+ [ -f synthetic_events ]
+ echo
+ [ -f snapshot ]
+ echo 0
+ clear_trace
+ echo
+ enable_tracing
+ echo 1
+ . /home/ubuntu/autotest/client/tmp/ubuntu_kselftests_ftrace/src/linux/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
+ echo sched:sched_switch
+ yield
+ ping 127.0.0.1 -c 1
PING 127.0.0.1 (127.0.0.1) 56(84) bytes of data.
64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.096 ms
--- 127.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.096/0.096/0.096/0.000 ms
+ cat trace
+ grep sched_switch
+ wc -l
Timer expired (600 sec.), nuking pid 20982
From the code (tools/testing/selftests/ftrace/test.d/event/event-enable.tc) this test is trying to run:
count=`cat trace | grep sched_switch | wc -l`
This command caused the timeout as `cat trace` seems to be never ending. |
|
| 2023-09-14 07:13:26 |
Po-Hsu Lin |
ubuntu-kernel-tests: assignee |
|
Po-Hsu Lin (cypressyew) |
|
| 2023-09-14 07:13:28 |
Po-Hsu Lin |
ubuntu-kernel-tests: status |
New |
In Progress |
|
