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| author |   wanghanlin <wanghanlin@corp.netease.com> | 2020-12-28 16:19:05 +0800 |
|---|---|---|
| committer |   Florin Coras <florin.coras@gmail.com> | 2021-01-11 19:50:47 +0000 |
| commit | dcacdc4fd90d6cc71aaafccbca3ea91c7481ddbd (patch) | |
| tree | 9b7abc60a57e8d0640027d15e3584fe413c79b79 /src/vcl/vcl_locked.h | |
| parent | 56177e64b620b93d3d935cd1f1663e2f7f1e5592 (diff) | |
vcl: fix deadlock in rpc
Worker thread A send rpc to worker thread B with vls_table_lock when
worker thread B try to lock vls_table_lock, so unlock it temporarily.
Add worker_rpc_lock to synchronize rpc message among workers to prevent
waiting for each other deadly.
Add timeout for rpc response to prevent hanging when VPP exit/crash.
Type: fix
Signed-off-by: wanghanlin <wanghanlin@corp.netease.com>
Change-Id: I675f1fe76673ede09107f6eeaaa0eda8bbfc6e61
Diffstat (limited to 'src/vcl/vcl_locked.h')
| -rw-r--r-- | src/vcl/vcl_locked.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/vcl/vcl_locked.h b/src/vcl/vcl_locked.h index 7cfb3bdc522..11b71eee4af 100644 --- a/src/vcl/vcl_locked.h +++ b/src/vcl/vcl_locked.h @@ -21,6 +21,7 @@ #include <vcl/vppcom.h> #define VLS_INVALID_HANDLE ((int)-1) +#define VLS_WORKER_RPC_TIMEOUT 3 /* timeout to wait rpc response. */ typedef int vls_handle_t; |