diff --git a/Pal/src/host/Linux-SGX/debugger/sgx_gdb.h b/Pal/src/host/Linux-SGX/debugger/sgx_gdb.h
index dee781cf..b42e1aed 100644
--- a/Pal/src/host/Linux-SGX/debugger/sgx_gdb.h
+++ b/Pal/src/host/Linux-SGX/debugger/sgx_gdb.h
@@ -1,4 +1,4 @@
-#define MAX_DBG_THREADS 64
+#define MAX_DBG_THREADS 1024
 
 /* This address is shared between our GDB and Graphene-SGX and must
  * reside in non-enclave memory. Graphene-SGX puts an enclave_dbginfo
diff --git a/Pal/src/host/Linux-SGX/sgx_main.c b/Pal/src/host/Linux-SGX/sgx_main.c
index dddf7c93..5700e76e 100644
--- a/Pal/src/host/Linux-SGX/sgx_main.c
+++ b/Pal/src/host/Linux-SGX/sgx_main.c
@@ -234,9 +234,11 @@ int initialize_enclave (struct pal_enclave * enclave)
     sgx_arch_enclave_css_t enclave_sigstruct;
     sgx_arch_secs_t        enclave_secs;
     unsigned long          enclave_entry_addr;
-    void*                  tcs_addrs[MAX_DBG_THREADS];
     unsigned long          heap_min = DEFAULT_HEAP_MIN;
 
+    /* this array may overflow the stack, so we allocate it in BSS */
+    static void* tcs_addrs[MAX_DBG_THREADS];
+
     enclave_image = INLINE_SYSCALL(open, 3, ENCLAVE_FILENAME, O_RDONLY, 0);
     if (IS_ERR(enclave_image)) {
         SGX_DBG(DBG_E, "Cannot find %s\n", ENCLAVE_FILENAME);