I have an agent running on an ARM based Windows machine, Java is the ARM version from Microsoft, i.e.
C:\> java --version
openjdk 21.0.8 2025-07-15 LTS
OpenJDK Runtime Environment Microsoft-11952137 (build 21.0.8+9-LTS)
OpenJDK 64-Bit Server VM Microsoft-11952137 (build 21.0.8+9-LTS, mixed mode, sharing)
Everything seems to be working fine, i.e. jobs go down to the agent, they do what they are supposed to do but every now and then I get an error with winp, see below.
From what I can see the agent is attempting to load an AMD64 DLL to do something but this is an ARM64 machine so (of course) it cannot load that DLL.
Is there something that I need to do on the server side to install (make available) an ARM64 version of that DLL or does that DLL not exist for ARM64 on Windows?
Nov 28, 2025 10:45:12 AM org.jvnet.winp.Native
SEVERE: Cannot init winp native
java.lang.UnsatisfiedLinkError: Unable to load winp.x64.dll
at Jenkins v2.528.2//org.jvnet.winp.Native.load(Native.java:143)
at Jenkins v2.528.2//org.jvnet.winp.Native.(Native.java:102)
at Jenkins v2.528.2//org.jvnet.winp.WinProcess.enableDebugPrivilege(WinProcess.java:230)
at Jenkins v2.528.2//hudson.util.ProcessTree$Windows.(ProcessTree.java:725)
at Jenkins v2.528.2//hudson.util.ProcessTree.get(ProcessTree.java:462)
at Jenkins v2.528.2//hudson.Launcher$RemoteLauncher$KillTask.call(Launcher.java:1180)
at Jenkins v2.528.2//hudson.Launcher$RemoteLauncher$KillTask.call(Launcher.java:1170)
at hudson.remoting.UserRequest.perform(UserRequest.java:225)
at hudson.remoting.UserRequest.perform(UserRequest.java:50)
at hudson.remoting.Request$2.run(Request.java:391)
at hudson.remoting.InterceptingExecutorService.lambda$wrap$0(InterceptingExecutorService.java:81)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
at hudson.remoting.Engine$1.lambda$newThread$0(Engine.java:310)
at java.base/java.lang.Thread.run(Thread.java:1583)
Caused by: java.lang.UnsatisfiedLinkError: C:\Users\[username]\AppData\Local\Temp\winp.x64536086743134957126.dll: Can’t load AMD 64-bit .dll on a ARM 64-bit platform
Jenkins setup:
Jenkins: 2.528.2
OS: Linux - 5.15.0-161-generic
Java: 21.0.9 - Ubuntu (OpenJDK 64-Bit Server VM)
-–
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