Using ctrl-F ('Find') would not find 'unknown' because it matches id zero.
Fix by excluding id zero from selection.Example: $ perf record -e intel_pt//u uname Linux [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.034 MB perf.data ] $ perf script --itrace=bep -s ~/libexec/perf-core/scripts/python/export-to-sqlite.py perf.data.db branches calls 2020-06-26 15:32:14.928997 Creating database ... 2020-06-26 15:32:14.933971 Writing records... 2020-06-26 15:32:15.535251 Adding indexes 2020-06-26 15:32:15.542993 Dropping unused tables 2020-06-26 15:32:15.549716 Done $ python3 ~/libexec/perf-core/scripts/python/exported-sql-viewer.py perf.data.db Select: Reports -> Context-Sensitive Call Graph Press: Ctrl-F Enter: unknown Press: Enter Before: gets stuck After: tree is expanded to line showing 'unknown' Signed-off-by: Adrian Hunter <[email protected]> Fixes: 254c0d820b86d ("perf scripts python: exported-sql-viewer.py: Factor out CallGraphModelBase") Cc: [email protected] --- tools/perf/scripts/python/exported-sql-viewer.py | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/perf/scripts/python/exported-sql-viewer.py b/tools/perf/scripts/python/exported-sql-viewer.py index 4be7cb68c8bb..e0c90aeff15e 100755 --- a/tools/perf/scripts/python/exported-sql-viewer.py +++ b/tools/perf/scripts/python/exported-sql-viewer.py @@ -768,7 +768,8 @@ class CallGraphModel(CallGraphModelBase): " FROM calls" " INNER JOIN call_paths ON calls.call_path_id = call_paths.id" " INNER JOIN symbols ON call_paths.symbol_id = symbols.id" - " WHERE symbols.name" + match + + " WHERE calls.id <> 0" + " AND symbols.name" + match + " GROUP BY comm_id, thread_id, call_path_id" " ORDER BY comm_id, thread_id, call_path_id") -- 2.17.1

