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Add more info when GenerateDumpIfDbgRequested fails #6113

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merged 3 commits into from
Oct 8, 2024
Merged

Add more info when GenerateDumpIfDbgRequested fails #6113

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8bb131e
Add more info when GenerateDumpIfDbgRequested fails
kevingosse Oct 3, 2024
09a9ac0
Moar info
kevingosse Oct 3, 2024
4a4c2e4
More moar info
kevingosse Oct 4, 2024
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56 changes: 55 additions & 1 deletion profiler/test/Datadog.Profiler.IntegrationTests/LinuxOnly/WrapperLibraryTest.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@
// </copyright>

using System;
using System.Diagnostics;
using System.IO;
using System.Linq;
using Datadog.Profiler.IntegrationTests.Helpers;
Expand Down Expand Up @@ -92,7 +93,60 @@ public void GenerateDumpIfDbgRequested(string appName, string framework, string

using var processHelper = runner.LaunchProcess();

runner.WaitForExitOrCaptureDump(processHelper.Process, milliseconds: 30_000).Should().BeTrue();
var success = runner.WaitForExitOrCaptureDump(processHelper.Process, milliseconds: 30_000);

if (!success)
{
// Note: we don't drain because the process hasn't exited, but it means the output may be incomplete
_output.WriteLine("Standard output:");
_output.WriteLine(processHelper.StandardOutput);

var pid = processHelper.Process.Id;

var status = File.ReadAllText($"/proc/{pid}/status");

_output.WriteLine("Process status:");
_output.WriteLine(status);

_output.WriteLine("************************");

// Enumerating status for each thread
var threads = Directory.GetFiles($"/proc/{pid}/task");

foreach (var thread in threads)
{
_output.WriteLine($"**** {thread}:");
try
{
var threadStatus = File.ReadAllText($"{thread}/status");
_output.WriteLine(threadStatus);
}
catch (Exception ex)
{
_output.WriteLine(ex.Message);
}
}

_output.WriteLine("************************");

var processes = Process.GetProcesses();

_output.WriteLine("Processes:");

foreach (var process in processes)
{
_output.WriteLine($"Process: {process.ProcessName} ({process.Id})");

if (process.ProcessName == "createdump")
{
var testBaseOutputDir = runner.Environment.GetTestOutputPath();
process.GetAllThreadsStack(testBaseOutputDir, _output);
process.TakeMemoryDump(testBaseOutputDir, _output);
}
}
}

success.Should().BeTrue();
processHelper.Drain();
processHelper.ErrorOutput.Should().Contain("Unhandled exception. System.InvalidOperationException: Task failed successfully");
processHelper.StandardOutput.Should().NotMatchRegex(@"createdump [\w\.\/]+createdump \d+")
Expand Down
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