Am I doing something wrong? The simplest fuzz test seems to crash on me.
#fuzz
quasi pendant
the fuzzer stuff is still very new
vestal jetty
it breaks if I put both -ffuzz and --debug-rt
but not if I put either/or
no clue why that is
quasi pendant
my guess is that coverage information inside std or compiler-rt is being called while handling coverage information, which breaks HashMap's thread safety guarantee
quasi pendant
im not even entirely sure how exactly that should actually be handled
but my working guess:
- something ends up calling visitPc
- which calls HashMap.put
- sometime during the execution of HashMap.put, but before it releases the pointer safety lock,
- something calls visitPc
- which calls HashMap.put, the pointer safety lock is already locked; hence error
vestal jetty
ok