From 79fd6570f5b416912de7cef1d8161ae623dfcc0d Mon Sep 17 00:00:00 2001
From: "Hui, Chunyang" <sanqian.hcy@antfin.com>
Date: Mon, 27 Apr 2020 11:35:37 +0000
Subject: [PATCH] Change log level to warning for ioctl TIOCGWINSZ

---
 src/libos/src/fs/file_ops/ioctl/mod.rs | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/libos/src/fs/file_ops/ioctl/mod.rs b/src/libos/src/fs/file_ops/ioctl/mod.rs
index d4bc52dc..32f3553a 100644
--- a/src/libos/src/fs/file_ops/ioctl/mod.rs
+++ b/src/libos/src/fs/file_ops/ioctl/mod.rs
@@ -48,9 +48,12 @@ impl<'a> IoctlCmd<'a> {
     pub fn validate_arg_val(&self) -> Result<()> {
         match self {
             IoctlCmd::TIOCGWINSZ(winsize_ref) => {
-                // ws_row and ws_col are not supposed to be zeros
+                // ws_row and ws_col are usually not zeros
                 if winsize_ref.ws_row == 0 || winsize_ref.ws_col == 0 {
-                    return_errno!(EINVAL, "invalid data from host");
+                    warn!(
+                        "window size: row: {:?}, col: {:?}",
+                        winsize_ref.ws_row, winsize_ref.ws_col
+                    );
                 }
             }
             IoctlCmd::FIONREAD(nread_ref) => {