Description

A user has reported that their dedicated server experienced a curlhttp crash after updating to 4.13.1 and left running for an extended period of time.

Crash not reproduced internally.

Steps to Reproduce

Reported by user. Not reproduced internally.

  1. Launch dedicated server
  2. Connect client(s) to server
  3. Soak overnight

RESULT:

Server crash with, "Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x20640000"

Callstack
2016.09.30-05.36.42:444][493]LogEngine:Warning: TimerManager 000000000BB7EC40 dump ended
 [2016.09.30-05.36.42:444][493]LogWindows:Error: === Critical error: ===
 [2016.09.30-05.36.42:444][493]LogWindows:Error: 
 [2016.09.30-05.36.42:444][493]LogWindows:Error: Fatal error!
 [2016.09.30-05.36.42:444][493]LogWindows:Error: 
 [2016.09.30-05.36.42:444][493]LogWindows:Error: Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x20640000
 [2016.09.30-05.36.42:444][493]LogWindows:Error: 
 [2016.09.30-05.36.42:444][493]LogWindows:Error: ZTASERVER.exe!FCurlHttpRequest::DebugCallback() [d:\4_13_1\engine\source\runtime\online\http\private\curl\curlhttp.cpp:420]
 [2016.09.30-05.36.42:444][493]LogWindows:Error: ZTASERVER.exe!FCurlHttpRequest::StaticDebugCallback() [d:\4_13_1\engine\source\runtime\online\http\private\curl\curlhttp.cpp:262]
 [2016.09.30-05.36.42:444][493]LogWindows:Error: ZTASERVER.exe!Curl_write_plain()
 [2016.09.30-05.36.42:444][493]LogWindows:Error: ZTASERVER.exe!Curl_debug()
 [2016.09.30-05.36.42:444][493]LogWindows:Error: ZTASERVER.exe!Curl_add_buffer_send()
 [2016.09.30-05.36.42:444][493]LogWindows:Error: ZTASERVER.exe!Curl_http()
 [2016.09.30-05.36.42:444][493]LogWindows:Error: ZTASERVER.exe!Curl_do()
 [2016.09.30-05.36.42:444][493]LogWindows:Error: ZTASERVER.exe!curl_multi_wait()
 [2016.09.30-05.36.42:444][493]LogWindows:Error: ZTASERVER.exe!curl_multi_perform()
 [2016.09.30-05.36.42:444][493]LogWindows:Error: ZTASERVER.exe!FCurlHttpThread::HttpThreadTick() [d:\4_13_1\engine\source\runtime\online\http\private\curl\curlhttpthread.cpp:28]
 [2016.09.30-05.36.42:444][493]LogWindows:Error: ZTASERVER.exe!FHttpThread::Run() [d:\4_13_1\engine\source\runtime\online\http\private\httpthread.cpp:135]
 [2016.09.30-05.36.42:444][493]LogWindows:Error: ZTASERVER.exe!FRunnableThreadWin::Run() [d:\4_13_1\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:74]
 [2016.09.30-05.36.42:444][493]LogWindows:Error: ZTASERVER.exe!FRunnableThreadWin::GuardedRun() [d:\4_13_1\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:31]
 [2016.09.30-05.36.42:444][493]LogWindows:Error: kernel32.dll
 [2016.09.30-05.36.42:444][493]LogWindows:Error: ntdll.dll
 [2016.09.30-05.36.42:444][493]LogWindows:Error: ntdll.dll
 [2016.09.30-05.36.42:444][493]LogWindows:Error: 
 [2016.09.30-05.36.42:444][493]LogWindows:Error: Crash in runnable thread HttpManagerThread
 [2016.09.30-05.36.42:449][493]LogExit: Executing StaticShutdownAfterError
 [2016.09.30-05.36.42:449][493]LogWindows: FPlatformMisc::RequestExit(1)

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Fixed
ComponentUE - Networking
Affects Versions4.13.1
Target Fix4.14
Fix Commit3180289
Release Commit3180289
CreatedSep 30, 2016
ResolvedOct 31, 2016
UpdatedSep 16, 2019
View Jira Issue