stdump

Explore stack trace of a running managed process or from a minidump file

Installation

You can install stdump using one of the following ways:

• Manual: Obtain an archive from the latest release.
• NuGet: Install-Package stdump
• .NET Tool: dotnet tool install -g stdump

After installing, there will be two executables: stdump-x86.exe and stdump-x64.exe.

Elevated Access on Linux and macOS

Elevated access is unnecessary when the target application operates under the same user account. But for other cases, it might be useful to run the utility under a privileged account.

sudo dotnet tool install stdump --tool-path /usr/local/share/dotnet-tools

sudo /usr/local/share/dotnet-tools/stdump

Usage

To display a stack trace of a running program, use its PID or process name.

stdump 12832

stdump w3wp.exe

Or point stdump to a minidump file.

stdump c:\debug\w3wp.dmp

Output

STDump v0.0.1 - Writes process managed stack traces
Copyright (C) 2016 Hangfire OÜ
Based on Microsoft.Diagnostics.Runtime (CLR MD). Copyright (C) Microsoft Corporation.

Writes managed stack trace of a running process, or from a minidump file to console.

Found CLR v4.6.1080.00

Following AppDomains found:

AppDomain #1
  Address:       5029808
  Name:          ConsoleApplication38.exe
  Configuration: c:\users\odinserj\documents\visual studio 2015\Projects\ConsoleApplication38\ConsoleApplication38\bin\Debug\ConsoleApplication38.exe.Config
  Directory:     c:\users\odinserj\documents\visual%20studio%202015\Projects\ConsoleApplication38\ConsoleApplication38\bin\Debug\

Following threads found:

Thread #1
  OS Thread ID:      10400
  AppDomain Address: 5029808
  Type:              Foreground

  Managed stack trace:
   - [InlinedCallFrame] at UNKNOWN
   - DomainNeutralILStubClass.IL_STUB_PInvoke(Microsoft.Win32.SafeHandles.SafeFileHandle, Byte*, Int32, Int32 ByRef, IntPtr) at mscorlib
   - [InlinedCallFrame] at UNKNOWN
   - System.IO.__ConsoleStream.ReadFileNative(Microsoft.Win32.SafeHandles.SafeFileHandle, Byte[], Int32, Int32, Boolean, Boolean, Int32 ByRef) at mscorlib
   - System.IO.__ConsoleStream.Read(Byte[], Int32, Int32) at mscorlib
   - System.IO.StreamReader.ReadBuffer() at mscorlib
   - System.IO.StreamReader.ReadLine() at mscorlib
   - System.IO.TextReader+SyncTextReader.ReadLine() at mscorlib
   - System.Console.ReadLine() at mscorlib
   - Microsoft.PFE.Samples.Program.Main() at ConsoleApplication38
   - [GCFrame] at UNKNOWN

Thread #2
  OS Thread ID:      2168
  AppDomain Address: 5029808
  Type:              Background
  Role:              Finalizer

  Managed stack trace:
   - [DebuggerU2MCatchHandlerFrame] at UNKNOWN