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  1. Minecraft Launcher
  2. MCL-6124

Concurrent logging causes malformed log lines

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    • Icon: Bug Bug
    • Resolution: Awaiting Response
    • None
    • 2.0.806 (Windows), 2.1.1216 (Windows) / 2.1.1217 (Mac OS) / 2.1.1218 (Linux), 2.1.13827, 2.2.3964 (Mac)
    • None
    • Confirmed

      The bug

      Two messages which are logged concurrently, for example one by the client and one by the server, cause malformed log lines.

                          Using VBOs: Yes
                          Is Modded: Probably not. Jar signature remains and client brand is untouched.
                          Type: Client (map_client.txt)
                          Resource Packs: 
                          Current Language: English (US)
                          Profiler Position: N/A (disabled)
                          CPU: 6x AMD Phenom(tm) II X6 1055T Processor
                        <log4j:Event logger="kz" timestamp="1486995793740" level="INFO" thread="File IO Thread">
                          <log4j:Message><![CDATA[[STDERR]: 	at bdr.run(SourceFile:30)]]></log4j:Message>
                        </log4j:Event>
      16:23:13 monitor expected <
      16:23:13 game    #@!@# Game crashed! Crash report saved to: #@!@# C:\Users\###
                        <log4j:Event logger="kz" timestamp="1486995793742" level="INFO" thread="File IO Thread">
                          <log4j:Message><![CDATA[[STDERR]: 	at java.lang.Thread.run(Thread.java:745)]]></log4j:Message>
                        </log4j:Event>
      16:23:13 monitor expected <
      

      Additionally affected versions

      • 2.0.1034-stage (Windows)
      • 2.1.1462 (Windows)

      How to reproduce

      1. Create a world which takes some time to save, for example an amplified world
      2. Start pressing F3 + C to trigger a crash
      3. Right before Minecraft crashes(should happen after 10 seconds of pressing the keys) press ESC to have Minecraft save the world

      You might have to repeat this multiple times to reproduce it.

            Unassigned Unassigned
            marcono1234 [Mod] Marcono1234
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              Created:
              Updated:
              Resolved:
              CHK: