https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79200
tommapson at gmx dot de changed: What |Removed |Added ---------------------------------------------------------------------------- Summary|Race-Condition in Address |Race-Condition in Address |Santitizer |Santitizer | |(RT_PREEMPT-Kernel only?) --- Comment #5 from tommapson at gmx dot de --- The problem can be reproduced on Debian 9 using the realtime kernel shipped by Debian: $ uname -a Linux myhost 4.9.0-3-rt-amd64 #1 SMP PREEMPT RT Debian 4.9.30-2+deb9u2 (2017-06-26) x86_64 GNU/Linux $ gcc --version gcc (Debian 6.3.0-18) 6.3.0 20170516 When booting the non-rt-kernel 4.9.0-3-amd64, the problem disappears - using the same binary of main. As described initially: Without -fsanitize=address the problem is gone, too.