From 39c207dc8c84ccbdc7d725cfad774b95fbddce2d Mon Sep 17 00:00:00 2001
From: tushicheng <18829573815@163.com>
Date: Wed, 31 May 2023 02:42:20 +0000
Subject: [PATCH] fix the atomic operation when address misalignment

---
 deps/oblib/src/lib/thread/threads.h | 2 +-
 src/observer/ob_server.h            | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/deps/oblib/src/lib/thread/threads.h b/deps/oblib/src/lib/thread/threads.h
index 783b7545f7..39ad3b39d8 100644
--- a/deps/oblib/src/lib/thread/threads.h
+++ b/deps/oblib/src/lib/thread/threads.h
@@ -140,7 +140,7 @@ private:
   int64_t stack_size_;
   bool stop_;
   // protect for thread count changing.
-  common::SpinRWLock lock_;
+  common::SpinRWLock lock_ __attribute__((__aligned__(16)));
   // tenant ctx
   IRunWrapper *run_wrapper_;
   // thread cgroups
diff --git a/src/observer/ob_server.h b/src/observer/ob_server.h
index 442ce73eb7..87205d984a 100644
--- a/src/observer/ob_server.h
+++ b/src/observer/ob_server.h
@@ -317,7 +317,7 @@ public:
   volatile bool need_ctas_cleanup_; //true: ObCTASCleanUpTask should traverse all table schemas to find the one need be dropped
 private:
   //thread to deal signals
-  char sig_buf_[sizeof(ObSignalWorker) + sizeof(ObSignalHandle)];
+  char sig_buf_[sizeof(ObSignalWorker) + sizeof(ObSignalHandle)] __attribute__((__aligned__(16)));
   ObSignalWorker *sig_worker_;
   ObSignalHandle *signal_handle_;