[libFuzzer] increase the default size for shmem

llvm-svn: 293722
diff --git a/llvm/lib/Fuzzer/test/equivalence.test b/llvm/lib/Fuzzer/test/equivalence.test
index 6c9d878..2728447 100644
--- a/llvm/lib/Fuzzer/test/equivalence.test
+++ b/llvm/lib/Fuzzer/test/equivalence.test
@@ -1,6 +1,6 @@
 RUN: LLVMFuzzer-EquivalenceATest -run_equivalence_server=EQUIV_TEST & export APID=$!
 RUN: sleep 3
-RUN: not LLVMFuzzer-EquivalenceBTest -use_equivalence_server=EQUIV_TEST 2>&1 | FileCheck %s
+RUN: not LLVMFuzzer-EquivalenceBTest -use_equivalence_server=EQUIV_TEST -max_len=4096 2>&1 | FileCheck %s
 CHECK: ERROR: libFuzzer: equivalence-mismatch. Sizes: {{.*}}; offset 2
 CHECK: SUMMARY: libFuzzer: equivalence-mismatch
 RUN: kill -9 $APID