Hi Tao,
based on a quick test I performed, there may be a work-around that will
work for you.
The issue that I see is that at least the
`lttng_statedump_file_descriptor` events no longer have a pid field
which the older lttng-analyses code assumes is present.
To find this out
When running the manual recording steps, could you add the following
command before running `lttng start`:
```
lttng add-context --kernel --type=pid
```
To pinpoint the source of the error, I used the `--debug` parameter for
`lttng-analyses` as follows:
```
# lttng-schedtop --debug
lttng-traces/lttng-analysis-27010-20231031-182735/
Checking the trace for lost events...
Traceback (most recent call last):
] ETA: --:--:--
File
"/usr/local/lib/python3.7/dist-packages/lttnganalyses/cli/command.py",
line 73, in _run_step
fn()
File
"/usr/local/lib/python3.7/dist-packages/lttnganalyses/cli/command.py",
line 365, in _run_analysis
self._automaton.process_event(event)
File
"/usr/local/lib/python3.7/dist-packages/lttnganalyses/linuxautomaton/automaton.py",
line 81, in process_event
sp.process_event(ev)
File
"/usr/local/lib/python3.7/dist-packages/lttnganalyses/linuxautomaton/sp.py",
line 33, in process_event
self._cbs[name](ev)
File
"/usr/local/lib/python3.7/dist-packages/lttnganalyses/linuxautomaton/statedump.py",
line 91, in _process_lttng_statedump_file_descriptor
pid = event['pid']
File
"/usr/local/lib/python3.7/dist-packages/babeltrace/babeltrace.py", line
912, in __getitem__
raise KeyError(field_name)
KeyError: 'pid'
Error: Cannot run analysis: 'pid'
```
thanks,
kienan
On 2023-10-31 07:44, 姜涛 Tao(AD) via lttng-dev wrote:
Hi everyone, I use lttng-analysis tools to parse the trace files but get
error as below:
I try two methods to catch the trace data: “automatic” using
lttng-analysis-record and “manual” using lttng
create/enable-event/start/stop/destroy, but always get the errors when
using lttng-analysis tools(0.6.0 and 0.6.1 version).
I load the lttng modules(2.12.14 version) successfully:
文本 描述已自动生成
The environment is as below: Ubuntu20.04 aarch64, kernel version:
5.10.120 rt patch.
Any help will be appreciated! Thanks!
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