curl_easy_perform block and do not return

[z zh via curl-library]

Hi:
     i use libcurl to post some messages to server on windows, but In very few 
case the "curl_easy_perform" function can not return. When I dump the exe and 
debug it , I find the stack is like:

Curl_wait_ms()
easy_transfer()
easy_perform()
curl_easy_perform()
------------------------------------------------------------------
  sysprobe.exe!_Curl_wait_ms()  + 0x20 字节 C
  sysprobe.exe!_curl_easy_init()  + 0x171 字节 C
  sysprobe.exe!_curl_easy_init()  + 0x291 字节 C
  sysprobe.exe!_curl_easy_perform()  + 0xc 字节 C

the libcurl version is 7.59.0

Is there any way to solve this problem?




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