Thread #x was created ... by 0x........: pthread_create@* (hg_intercepts.c:...) by 0x........: main (hg04_race.c:21) Thread #x was created ... by 0x........: pthread_create@* (hg_intercepts.c:...) by 0x........: main (hg04_race.c:19) Possible data race during read of size 4 at 0x........ by thread #x at 0x........: th (hg04_race.c:10) by 0x........: mythread_wrapper (hg_intercepts.c:...) ... This conflicts with a previous write of size 4 by thread #x at 0x........: th (hg04_race.c:10) by 0x........: mythread_wrapper (hg_intercepts.c:...) ... Location 0x........ is 0 bytes inside local var "shared" declared at hg04_race.c:6, in frame #x of thread x Possible data race during write of size 4 at 0x........ by thread #x at 0x........: th (hg04_race.c:10) by 0x........: mythread_wrapper (hg_intercepts.c:...) ... This conflicts with a previous write of size 4 by thread #x at 0x........: th (hg04_race.c:10) by 0x........: mythread_wrapper (hg_intercepts.c:...) ... Location 0x........ is 0 bytes inside local var "shared" declared at hg04_race.c:6, in frame #x of thread x ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 0 from 0)