private void FillFaultingThreadAndModuleInformation(CommandExecutionContext context)
{
UnifiedStackTraces stackTrace = new UnifiedStackTraces(_dbgEngTarget.DebuggerInterface, context);
_triageInformation.TotalThreadCount = (int)stackTrace.NumThreads;
_triageInformation.ManagedThreadCount = stackTrace.Threads.Count(t => t.IsManagedThread);
LastEventInformation lastEventInformation = _dbgEngTarget.GetLastEventInformation();
if (lastEventInformation == null)
{
return;
}
ThreadInformation faultingThread = stackTrace.Threads.SingleOrDefault(t => t.OSThreadId == lastEventInformation.OSThreadId);
if (faultingThread == null)
{
return;
}
_triageInformation.FaultingThreadOSID = faultingThread.OSThreadId;
_triageInformation.IsFaultingThreadManaged = faultingThread.IsManagedThread;
_triageInformation.EventDescription = lastEventInformation.EventDescription;
if (lastEventInformation.ExceptionRecord.HasValue)
{
_triageInformation.ExceptionCode = lastEventInformation.ExceptionRecord.Value.ExceptionCode;
}
if (faultingThread.IsManagedThread && faultingThread.ManagedThread.CurrentException != null)
{
_triageInformation.ManagedExceptionType = faultingThread.ManagedThread.CurrentException.Type.Name;
}
var frames = stackTrace.GetStackTrace(faultingThread.Index);
UnifiedStackFrame faultingFrame = frames.FirstOrDefault(f => f.Module != null && !WellKnownMicrosoftModules.Contains(f.Module));
if (faultingFrame != null)
{
_triageInformation.FaultingModule = faultingFrame.Module;
_triageInformation.FaultingMethod = faultingFrame.Method;
}
if (ShowFaultingStack)
{
context.WriteLine("Faulting call stack:");
stackTrace.PrintStackTrace(context, frames);
}
}
public override bool Generate(CommandExecutionContext context)
{
var target = context.NativeDbgEngTarget;
var unifiedStackTraces = new UnifiedStackTraces(target.DebuggerInterface, context);
var blockingObjectsStrategy = new DumpFileBlockingObjectsStrategy(context.Runtime, unifiedStackTraces, target);
foreach (var thread in unifiedStackTraces.Threads)
{
// This function is created lazily because we don't need the managed
// code state for each thread.
Func <bool> checkManagedCodeStateForThisThread = () =>
unifiedStackTraces.GetStackTrace(thread.EngineThreadId)
.Any(f => f.Type == UnifiedStackFrameType.Managed);
var threadWithBlockingInfo = blockingObjectsStrategy.GetThreadWithBlockingObjects(thread);
var threadInfo = new ThreadInfo
{
ManagedThreadId = threadWithBlockingInfo.ManagedThreadId,
OSThreadId = threadWithBlockingInfo.OSThreadId,
IsRunningManagedCode = checkManagedCodeStateForThisThread
};
foreach (var blockingObject in threadWithBlockingInfo.BlockingObjects)
{
var lockInfo = new LockInfo
{
Reason = blockingObject.Reason.ToString()
};
if (blockingObject.Type == UnifiedBlockingType.ClrBlockingObject)
{
lockInfo.Object = blockingObject.ManagedObjectAddress;
lockInfo.ManagedObjectType = context.Heap.GetObjectType(lockInfo.Object)?.Name;
}
else
{
lockInfo.Object = blockingObject.Handle;
lockInfo.OSObjectName = blockingObject.KernelObjectName;
}
lockInfo.OwnerThreadOSIds.AddRange(blockingObject.OwnerOSThreadIds);
threadInfo.Locks.Add(lockInfo);
}
Threads.Add(threadInfo);
RecommendFinalizerThreadBlocked(context);
RecommendDeadlockedThreads();
}
return(Threads.Any());
}
public DumpFileBlockingObjectsStrategy(ClrRuntime runtime, UnifiedStackTraces unifiedStackTraces, DataTarget dataTarget)
: base(runtime, unifiedStackTraces, dataTarget)
{
if (_dataTarget != null)
{
try
{
_handles = runtime.DataTarget.DataReader.EnumerateHandles().ToList();
}
catch (ClrDiagnosticsException)
{
// The dump file probably doesn't contain the handle stream.
}
}
}
public override bool Generate(CommandExecutionContext context)
{
var managedThreadNames = GetManagedThreadNames(context.Heap);
var target = context.NativeDbgEngTarget;
IDebugSystemObjects3 sysObjects = (IDebugSystemObjects3)target.DebuggerInterface;
sysObjects.GetCurrentProcessUpTime(out _processUpTimeInSeconds);
var debugAdvanced = (IDebugAdvanced2)target.DebuggerInterface;
var stackTraces = new UnifiedStackTraces(target.DebuggerInterface, context);
foreach (var thread in stackTraces.Threads)
{
var stackTrace = stackTraces.GetStackTrace(thread.Index);
var threadInfo = new ThreadInfo
{
EngineThreadId = thread.EngineThreadId,
OSThreadId = thread.OSThreadId,
ManagedThreadId = thread.ManagedThread?.ManagedThreadId ?? -1,
SpecialDescription = thread.ManagedThread?.SpecialDescription()
};
string threadName;
if (managedThreadNames.TryGetValue(threadInfo.ManagedThreadId, out threadName))
{
threadInfo.ThreadName = threadName;
}
threadInfo.Fill(debugAdvanced);
foreach (var frame in stackTrace)
{
threadInfo.StackFrames.Add(new StackFrame
{
Module = frame.Module,
Method = frame.Method,
SourceFileName = frame.SourceFileName,
SourceLineNumber = frame.SourceLineNumber
});
}
Threads.Add(threadInfo);
}
RecommendFinalizerThreadHighCPU(context);
RecommendHighNumberOfThreads();
return(true);
}
public void Execute(CommandExecutionContext context)
{
if (OSThreadId == 0)
{
OSThreadId = context.CurrentThread.OSThreadId;
}
context.WriteLine("{0,-10} {1,-20} {2}", "Type", "IP", "Function");
using (var target = context.CreateTemporaryDbgEngTarget())
{
var stackTracer = new UnifiedStackTraces(target.DebuggerInterface, context);
stackTracer.PrintStackTrace(context, (from thr in stackTracer.Threads
where thr.OSThreadId == OSThreadId
select thr.Index).Single());
}
}
public void Execute(CommandExecutionContext context)
{
if (OSThreadId == 0)
{
OSThreadId = context.CurrentThread.OSThreadId;
}
context.WriteLine("{0,-10} {1,-20} {2}", "Type", "IP", "Function");
using (var target = context.CreateTemporaryDbgEngTarget())
{
var stackTracer = new UnifiedStackTraces(target.DebuggerInterface, context);
stackTracer.PrintStackTrace(context, (from thr in stackTracer.Threads
where thr.OSThreadId == OSThreadId
select thr.Index).Single());
}
}
public BlockingObjectsStrategy(
ClrRuntime runtime, UnifiedStackTraces unifiedStackTraces = null, DataTarget dataTarget = null)
{
_runtime = runtime;
_unifiedStackTraces = unifiedStackTraces;
_dataTarget = dataTarget;
if (_dataTarget != null)
{
if (_dataTarget.Architecture == Architecture.X86)
{
_stackWalker = new StackWalkerStrategy_x86(_runtime);
}
_dataReader = _dataTarget.DataReader;
_debugClient = _dataTarget.DebuggerInterface;
}
}
public BlockingObjectsStrategy(
ClrRuntime runtime, UnifiedStackTraces unifiedStackTraces = null, DataTarget dataTarget = null)
{
_runtime = runtime;
_unifiedStackTraces = unifiedStackTraces;
_dataTarget = dataTarget;
if (_dataTarget != null)
{
if (_dataTarget.Architecture == Architecture.X86)
{
_stackWalker = new StackWalkerStrategy_x86(_runtime);
}
_dataReader = _dataTarget.DataReader;
_debugClient = _dataTarget.DebuggerInterface;
}
}
private void FillFaultingThreadAndModuleInformation(CommandExecutionContext context)
{
UnifiedStackTraces stackTrace = new UnifiedStackTraces(_dbgEngTarget.DebuggerInterface, context);
_triageInformation.TotalThreadCount = (int)stackTrace.NumThreads;
_triageInformation.ManagedThreadCount = stackTrace.Threads.Count(t => t.IsManagedThread);
LastEventInformation lastEventInformation = _dbgEngTarget.GetLastEventInformation();
if (lastEventInformation == null)
return;
ThreadInformation faultingThread = stackTrace.Threads.SingleOrDefault(t => t.OSThreadId == lastEventInformation.OSThreadId);
if (faultingThread == null)
return;
_triageInformation.FaultingThreadOSID = faultingThread.OSThreadId;
_triageInformation.IsFaultingThreadManaged = faultingThread.IsManagedThread;
_triageInformation.EventDescription = lastEventInformation.EventDescription;
if (lastEventInformation.ExceptionRecord.HasValue)
{
_triageInformation.ExceptionCode = lastEventInformation.ExceptionRecord.Value.ExceptionCode;
}
if (faultingThread.IsManagedThread && faultingThread.ManagedThread.CurrentException != null)
{
_triageInformation.ManagedExceptionType = faultingThread.ManagedThread.CurrentException.Type.Name;
}
var frames = stackTrace.GetStackTrace(faultingThread.Index);
UnifiedStackFrame faultingFrame = frames.FirstOrDefault(f => f.Module != null && !WellKnownMicrosoftModules.Contains(f.Module));
if (faultingFrame != null)
{
_triageInformation.FaultingModule = faultingFrame.Module;
_triageInformation.FaultingMethod = faultingFrame.Method;
}
if (ShowFaultingStack)
{
context.WriteLine("Faulting call stack:");
stackTrace.PrintStackTrace(context, frames);
}
}
private void SetStrategy()
{
if (_context.TargetType == TargetType.DumpFile ||
_context.TargetType == TargetType.DumpFileNoHeap)
{
_temporaryDbgEngTarget = _context.CreateTemporaryDbgEngTarget();
_unifiedStackTraces = new UnifiedStackTraces(_temporaryDbgEngTarget.DebuggerInterface, _context);
_blockingObjectsStrategy = new DumpFileBlockingObjectsStrategy(_context.Runtime, _unifiedStackTraces, _temporaryDbgEngTarget);
_threads.AddRange(_unifiedStackTraces.Threads.Select(ti => _blockingObjectsStrategy.GetThreadWithBlockingObjects(ti)));
}
else
{
_blockingObjectsStrategy = new LiveProcessBlockingObjectsStrategy(_context.Runtime);
// Currently, we are only enumerating the managed threads because we don't have
// an alternative source of information for threads in live processes. In the future,
// we can consider using System.Diagnostics or some other means of enumerating threads
// in live processes.
_threads.AddRange(_context.Runtime.Threads.Select(thr => _blockingObjectsStrategy.GetThreadWithBlockingObjects(thr)));
}
}
public void Execute(CommandExecutionContext context)
{
_context = context;
if (IncludeNativeThreads)
{
using (var target = context.CreateTemporaryDbgEngTarget())
{
var tracer = new UnifiedStackTraces(target.DebuggerInterface, context);
context.WriteLine("Stack tree for {0} threads:", tracer.NumThreads);
var allStacks = from thread in tracer.Threads
let frames = from frame in tracer.GetStackTrace(thread.Index)
where frame.Type != UnifiedStackFrameType.Special
select frame.DisplayString
select new ThreadAndStack
{
ManagedThreadId = thread.IsManagedThread ? thread.ManagedThread.ManagedThreadId : 0,
OSThreadId = thread.OSThreadId,
Stack = frames.Reverse()
};
ProcessStacks(allStacks);
}
}
else
{
context.WriteLine("Stack tree for {0} threads:", context.Runtime.Threads.Count);
var allStacks = from thread in context.Runtime.Threads
let frames = from frame in thread.StackTrace
where frame.Kind == ClrStackFrameType.ManagedMethod
select frame.DisplayString
select new ThreadAndStack
{
ManagedThreadId = thread.ManagedThreadId,
Stack = frames.Reverse()
};
ProcessStacks(allStacks);
}
}
public void Execute(CommandExecutionContext context)
{
_context = context;
if (IncludeNativeThreads)
{
using (var target = context.CreateTemporaryDbgEngTarget())
{
var tracer = new UnifiedStackTraces(target.DebuggerInterface, context);
context.WriteLine("Stack tree for {0} threads:", tracer.NumThreads);
var allStacks = from thread in tracer.Threads
let frames = from frame in tracer.GetStackTrace(thread.Index)
where frame.Type != UnifiedStackFrameType.Special
select frame.DisplayString
select new ThreadAndStack
{
ManagedThreadId = thread.IsManagedThread ? thread.ManagedThread.ManagedThreadId : 0,
OSThreadId = thread.OSThreadId,
Stack = frames.Reverse()
};
ProcessStacks(allStacks);
}
}
else
{
context.WriteLine("Stack tree for {0} threads:", context.Runtime.Threads.Count);
var allStacks = from thread in context.Runtime.Threads
let frames = from frame in thread.StackTrace
where frame.Kind == ClrStackFrameType.ManagedMethod
select frame.DisplayString
select new ThreadAndStack
{
ManagedThreadId = thread.ManagedThreadId,
Stack = frames.Reverse()
};
ProcessStacks(allStacks);
}
}
public override bool Generate(CommandExecutionContext context)
{
var target = context.NativeDbgEngTarget;
var lastEvent = target.GetLastEventInformation();
if (lastEvent == null)
{
return(false);
}
var stackTraces = new UnifiedStackTraces(target.DebuggerInterface, context);
var threadWithException = stackTraces.Threads.SingleOrDefault(t => t.OSThreadId == lastEvent.OSThreadId);
if (threadWithException == null)
{
return(false);
}
Exception = new ExceptionInfo
{
ExceptionCode = lastEvent.ExceptionRecord?.ExceptionCode ?? 0
};
if (Exception.ExceptionCode == 0)
{
return(false);
}
OSThreadId = threadWithException.OSThreadId;
ManagedThreadId = threadWithException.ManagedThread?.ManagedThreadId ?? 0;
// Note that we want the thread's stack from the exception context,
// and not from wherever it is right now.
Exception.StackFrames = stackTraces.GetStackTraceFromStoredEvent()
.Where(f => f.Type != UnifiedStackFrameType.Special)
.Select(f => f.DisplayString)
.ToList();
// Note that we might have an exception, but if it wasn't managed
// then the Thread.CurrentException field will be null.
var exception = threadWithException.ManagedThread?.CurrentException;
if (exception == null)
{
return(true);
}
Exception.ExceptionType = exception.Type.Name;
Exception.ExceptionMessage = exception.Message;
exception = exception.Inner;
var exceptionInfo = Exception;
while (exception != null)
{
exceptionInfo.InnerException = new ExceptionInfo();
exceptionInfo = exceptionInfo.InnerException;
exceptionInfo.ExceptionType = exception.Type.Name;
exceptionInfo.ExceptionMessage = exception.Message;
exceptionInfo.StackFrames = exception.StackTrace.Select(f => f.DisplayString).ToList();
exception = exception.Inner;
}
if (Exception != null)
{
Recommendations.Add(new UnhandledExceptionOccurred {
Exception = Exception
});
}
return(true);
}
private void SetStrategy()
{
if (_context.TargetType == TargetType.DumpFile
|| _context.TargetType == TargetType.DumpFile)
{
_temporaryDbgEngTarget = _context.CreateTemporaryDbgEngTarget();
_unifiedStackTraces = new UnifiedStackTraces(_temporaryDbgEngTarget.DebuggerInterface, _context);
_blockingObjectsStrategy = new DumpFileBlockingObjectsStrategy(_context.Runtime, _unifiedStackTraces, _temporaryDbgEngTarget);
_threads.AddRange(_unifiedStackTraces.Threads.Select(ti => _blockingObjectsStrategy.GetThreadWithBlockingObjects(ti)));
}
else
{
_blockingObjectsStrategy = new LiveProcessBlockingObjectsStrategy(_context.Runtime);
// Currently, we are only enumerating the managed threads because we don't have
// an alternative source of information for threads in live processes. In the future,
// we can consider using System.Diagnostics or some other means of enumerating threads
// in live processes.
_threads.AddRange(_context.Runtime.Threads.Select(thr => _blockingObjectsStrategy.GetThreadWithBlockingObjects(thr)));
}
}
public DumpFileBlockingObjectsStrategy(ClrRuntime runtime, UnifiedStackTraces unifiedStackTraces, DataTarget dataTarget)
: base(runtime, unifiedStackTraces, dataTarget)
{
if (_dataTarget != null)
{
try
{
_handles = runtime.DataTarget.DataReader.EnumerateHandles().ToList();
}
catch (ClrDiagnosticsException)
{
// The dump file probably doesn't contain the handle stream.
}
}
}
