Re: toolchain/57351

[Jim Spath <jspath55%gmail.com@localhost>]

The following reply was made to PR toolchain/57351; it has been noted by GNATS.

From: Jim Spath <jspath55%gmail.com@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: toolchain/57351
Date: Tue, 7 May 2024 16:51:35 -0400

 I found PR toolchain/55770 had already reported the results I found
 with intermittent tsan case failures. Meanwhile, I ran usr/tests on
 several x86/64 systems and found more failures on machines with fewer
 cores.
 
 6-core/12-thread AMD CPU:
 
 ----X---------------------X----X--------
 usr.bin/c++/t_tsan_data_race:data_race
 ----X-----------------------------------
 usr.bin/c++/t_tsan_data_race:data_race_pic
 --------------------------X----X--------
 usr.bin/c++/t_tsan_data_race:data_race_pie
 ---X-----X---X-------X---------X--------
 usr.bin/c++/t_tsan_vptr_race:vptr_race
 -------------X--------------------------
 usr.bin/c++/t_tsan_vptr_race:vptr_race_pie
 X--X----X-----------XX-X-------XX-------   usr.bin/cc/t_tsan_data_race:data_race
 ---X----X-----------X--X----------------
 usr.bin/cc/t_tsan_data_race:data_race_pic
 --------------------XX------------------
 usr.bin/cc/t_tsan_data_race:data_race_pie
 
 4-core/4-thread AMD CPU:
 
 ----X-X-XXX--X----X--XX--X------------X-
 usr.bin/c++/t_tsan_data_race:data_race
 ------X-X----X--------X--X------------X-
 usr.bin/c++/t_tsan_data_race:data_race_pic
 ----X----X---X--------------------------
 usr.bin/c++/t_tsan_data_race:data_race_pie
 -X-------------X--X---X--XX-X------X--X-
 usr.bin/c++/t_tsan_vptr_race:vptr_race
 -----------------------------------X----
 usr.bin/c++/t_tsan_vptr_race:vptr_race_pie
 -----X--X--X----------XX------X--X-----X   usr.bin/cc/t_tsan_data_race:data_race
 ----------------------XX---------X------
 usr.bin/cc/t_tsan_data_race:data_race_pic
 -----X--X--X------------------X--------X
 usr.bin/cc/t_tsan_data_race:data_race_pie
 
 2-core/2-thread Intel CPU:
 
 X-X---XX-X-X--X-XX--XXXXXXXXXXXX-X--XXX-
 usr.bin/c++/t_tsan_data_race:data_race
 ------X-------X-XX---XX-XXX-X--------X--
 usr.bin/c++/t_tsan_data_race:data_race_pic
 --X------X-------------XX-XXXXXX-----X--
 usr.bin/c++/t_tsan_data_race:data_race_pie
 -X--XXXXX--XXXXXXXXX--X-XXX--X-XX-XXXXXX
 usr.bin/c++/t_tsan_vptr_race:vptr_race
 ----XX-X---XXXXX-XXX--X-X-X--X--X-XXXXXX
 usr.bin/c++/t_tsan_vptr_race:vptr_race_pie
 -X--XXX-X-XX-XXXXXXXX-XXX---XX--X-XXX-X-   usr.bin/cc/t_tsan_data_race:data_race
 ------X----X-----XX---XXX----X--X-----X-
 usr.bin/cc/t_tsan_data_race:data_race_pic
 -X------X-XX--XX---XX-------X-----XXX---
 usr.bin/cc/t_tsan_data_race:data_race_pie
 
 OK to close this as a duplicate.