does not work on any request on windows

[ganadara]

update information.

This is the result of  ngx_http_wait_request_handler after c->recv(c,
b->last, size).

The normal response has been successfully responded to the user request.
Abnormal does not respond to user requests.

----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
normal 
p b
$9 = {
  pos = 0x1ecbe00 "GET / HTTP/1.1\r\nHost: 192.168.40.76\r\nConnection:
keep-alive\r\nCache-Control: max-age=0\r\nUpgrade-Insecure-Requests:
1\r\nUser-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36
(KHTML, like Gecko) Chrome/54.0.2840.71 Safari/537.36\r\nAccept:
text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8\r\nAccept-Encoding:
gzip, deflate, sdch, br\r\nAccept-Language:
ko,en-US;q=0.8,en;q=0.6,zh-CN;q=0.4,zh;q=0.2\r\n\r\n",
  last = 0x1ecbe00 "GET / HTTP/1.1\r\nHost: 192.168.40.76\r\nConnection:
keep-alive\r\nCache-Control: max-age=0\r\nUpgrade-Insecure-Requests:
1\r\nUser-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36
(KHTML, like Gecko) Chrome/54.0.2840.71 Safari/537.36\r\nAccept:
text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8\r\nAccept-Encoding:
gzip, deflate, sdch, br\r\nAccept-Language:
ko,en-US;q=0.8,en;q=0.6,zh-CN;q=0.4,zh;q=0.2\r\n\r\n", file_pos = 0,
file_last = 0,
  start = 0x1ecbe00 "GET / HTTP/1.1\r\nHost: 192.168.40.76\r\nConnection:
keep-alive\r\nCache-Control: max-age=0\r\nUpgrade-Insecure-Requests:
1\r\nUser-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36
(KHTML, like Gecko) Chrome/54.0.2840.71 Safari/537.36\r\nAccept:
text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8\r\nAccept-Encoding:
gzip, deflate, sdch, br\r\nAccept-Language:
ko,en-US;q=0.8,en;q=0.6,zh-CN;q=0.4,zh;q=0.2\r\n\r\n", end = 0x1ecc200 "",
tag = 0x0,
  file = 0x0, shadow = 0x0, temporary = 1, memory = 0, mmap = 0, recycled =
0, in_file = 0, flush = 0, sync = 0, last_buf = 0, last_in_chain = 0,
last_shadow = 0,
  temp_file = 0, num = 0}

abnormal
p b
  pos = 0x1172730 "GET /index.html HTTP/1.1\r\nHost:
127.0.0.1\r\nConnection: keep-alive\r\nCache-Control:
max-age=0\r\nUpgrade-Insecure-Requests: 1\r\nUser-Agent: Mozilla/5.0
(Windows NT 6.1; WOW64) 
AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.71
Safari/537.36\r\nAccept:
text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8\r\nAccept-Encoding:
gzip, deflate, sdch,
br\r\nAccept-Language:
ko,en-US;q=0.8,en;q=0.6,zh-CN;q=0.4,zh;q=0.2\r\n\r\n\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\27
2\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\
r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\
272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\27
2\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\002",
  last = 0x11728e4
"\r濟\272\r濟\272\r濟\272\r濟\272\r濟\272\r濟\272\r濟\272\r濟\272\r濟\272\r濟\272\r濟\272\r濟\272\r濟\272\r濟\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r
\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\2
72\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272
\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r
\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\002",
file_pos = 0, file_last = 0,
  start = 0x1172730 "GET /index.html HTTP/1.1\r\nHost:
127.0.0.1\r\nConnection: keep-alive\r\nCache-Control:
max-age=0\r\nUpgrade-Insecure-Requests: 1\r\nUser-Agent: Mozilla/5.0
(Windows NT 6.1; WOW64
) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.71
Safari/537.36\r\nAccept:
text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8\r\nAccept-Encoding:
gzip, deflate, sdch
, br\r\nAccept-Language:
ko,en-US;q=0.8,en;q=0.6,zh-CN;q=0.4,zh;q=0.2\r\n\r\n\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\
272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\27
2\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\
r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\
272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\002",
end = 0x1172b30 "\002", tag = 0x0,
 file = 0x0, shadow = 0x0, temporary = 1, memory = 0, mmap = 0, recycled =
0, in_file = 0,
  flush = 0, sync = 0, last_buf = 0, last_in_chain = 0, last_shadow = 0,
temp_file = 0, num = 0}

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,270875,270917#msg-270917