[PATCH] D46605: [libFuzzer] Guard symbolization with try-lock.
Matt Morehouse via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue May 8 15:07:32 PDT 2018
morehouse created this revision.
morehouse added a reviewer: kcc.
When out-of-memory or timeout occurs, threads can be stopped during
symbolization, thereby causing a deadlock when the OOM/TO handlers
attempt symbolization. We avoid this deadlock by skipping symbolization
if another thread is symbolizing.
https://reviews.llvm.org/D46605
Files:
compiler-rt/lib/fuzzer/FuzzerLoop.cpp
compiler-rt/lib/fuzzer/FuzzerUtil.cpp
compiler-rt/lib/fuzzer/FuzzerUtil.h
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