search

microsoft / vs-threading

The Microsoft.VisualStudio.Threading is a xplat library that provides many threading and synchronization primitives used in Visual Studio and other applications.
Other
992 stars 147 forks source link

!dumpasync Failed to parse the output of !do 0000000000000000: Invalid parameter 0000000000000000 #402

Open ghost opened 6 years ago

ghost commented 6 years ago

Bug description

0:000> !dumpasync
Failed to parse the output of !do 0000000000000000: Invalid parameter 0000000000000000

Failed to parse the output of !do 0000000000000000: Invalid parameter 0000000000000000

Failed to parse the output of !do 0000000000000000: Invalid parameter 0000000000000000

Failed to parse the output of !do 0000000000000000: Invalid parameter 0000000000000000

Failed to parse the output of !do 0000000000000000: Invalid parameter 0000000000000000

Failed to parse the output of !do 0000000000000000: Invalid parameter 0000000000000000

[actual stacks]

Repro steps

I can provide a dump internally if needed.

Expected behavior

The actual task "stacks"

Actual behavior

Failed to parse the output of !do 0000000000000000: Invalid parameter 0000000000000000

Additional context

ghost commented 6 years ago

With verbose output:

Execute command: !C:\Windows\Microsoft.NET\Framework64\v4.0.30319\SOS.dll.do 000000e46210a330
Name:        System.Threading.Tasks.UnwrapPromise`1[[System.Threading.Tasks.VoidTaskResult, mscorlib]]
MethodTable: 00007ffd5d00a4d8
EEClass:     00007ffd5ca5fff0
Size:        80(0x50) bytes
File:        C:\Windows\Microsoft.Net\assembly\GAC_64\mscorlib\v4.0_4.0.0.0__b77a5c561934e089\mscorlib.dll
Fields:
              MT    Field   Offset                 Type VT     Attr            Value Name
00007ffd5d059180  4001a20       38         System.Int32  1 instance                0 m_taskId
00007ffd5d056e10  4001a21        8        System.Object  0 instance 0000000000000000 m_action
00007ffd5d056e10  4001a22       10        System.Object  0 instance 0000000000000000 m_stateObject
00007ffd5d038278  4001a23       18 ...sks.TaskScheduler  0 instance 0000000000000000 m_taskScheduler
00007ffd5d049d00  4001a24       20 ...eading.Tasks.Task  0 instance 0000000000000000 m_parent
00007ffd5d059180  4001a25       3c         System.Int32  1 instance         33555456 m_stateFlags
00007ffd5d056e10  4001a38       28        System.Object  0 instance 0000000000000000 m_continuationObject
00007ffd5d03afd0  4001a3d       30 ...tingentProperties  0 instance 0000000000000000 m_contingentProperties
00007ffd5d059180  4001a1e      f40         System.Int32  1   shared           static s_taskIdCounter
                                 >> Domain:Value  000000e452fc08a0:416591 <<
00007ffd5d04e018  4001a1f      ea0 ...Tasks.TaskFactory  0   shared           static s_factory
                                 >> Domain:Value  000000e452fc08a0:000000e454b4f598 <<
00007ffd5d056e10  4001a39      ea8        System.Object  0   shared           static s_taskCompletionSentinel
                                 >> Domain:Value  000000e452fc08a0:000000e454b4f5c0 <<
00007ffd5d040b50  4001a3a      f44       System.Boolean  1   shared           static s_asyncDebuggingEnabled
                                 >> Domain:Value  000000e452fc08a0:0 <<
00007ffd5c9445a8  4001a3b      eb0 ....Task, mscorlib]]  0   shared           static s_currentActiveTasks
                                 >> Domain:Value  000000e452fc08a0:000000e454b4f5d8 <<
00007ffd5d056e10  4001a3c      eb8        System.Object  0   shared           static s_activeTasksLock
                                 >> Domain:Value  000000e452fc08a0:000000e454b4f628 <<
00007ffd5d018d98  4001a3e      ec0 ...bject, mscorlib]]  0   shared           static s_taskCancelCallback
                                 >> Domain:Value  000000e452fc08a0:000000e454b4f640 <<
00007ffd5d018ed8  4001a3f      ec8 ...rties, mscorlib]]  0   shared           static s_createContingentProperties
                                 >> Domain:Value  000000e452fc08a0:000000e454b4f680 <<
00007ffd5d049d00  4001a40      ed0 ...eading.Tasks.Task  0   shared           static s_completedTask
                                 >> Domain:Value  000000e452fc08a0:0000000000000000 <<
00007ffd5d018f70  4001a41      ed8 ....Task, mscorlib]]  0   shared           static s_IsExceptionObservedByParentPredicate
                                 >> Domain:Value  000000e452fc08a0:000000e454b4f6d8 <<
00007ffd5d044938  4001a42      ee0 ...g.ContextCallback  0   shared           static s_ecCallback
                                 >> Domain:Value  000000e452fc08a0:000000e454b66038 <<
00007ffd5d019000  4001a43      ee8 ...bject, mscorlib]]  0   shared           static s_IsTaskContinuationNullPredicate
                                 >> Domain:Value  000000e452fc08a0:000000e454b4f718 <<
00007ffd5d049d00  4001a1c       28 ...eading.Tasks.Task  0   shared         TLstatic t_currentTask
    >> Thread:Value 14a4:0000000000000000 14e4:000000e462109c18 1594:0000000000000000 15fc:000000e46210b198 1600:000000e46210b678 c70:0000000000000000 <<
00007ffd5d004198  4001a1d       30 ....Tasks.StackGuard  0   shared         TLstatic t_stackGuard
    >> Thread:Value 14a4:0000000000000000 14e4:000000e454c09d48 1594:000000e462a64ca0 15fc:0000000000000000 1600:0000000000000000 c70:000000e403e80720 <<
00007ffd5d04d7b8  40019e3       40 ...ks.VoidTaskResult  1 instance 000000e46210a370 m_result
00007ffd5db59ee0  40019e4        0 ...esult, mscorlib]]  0   shared           static s_Factory
                                 >> Domain:Value dynamic statics NYI 000000e452fc08a0:NotInit  <<
00007ffd5db0d6e0  40019e5        8 ...lib]], mscorlib]]  0   shared           static TaskWhenAnyCast
                                 >> Domain:Value dynamic statics NYI 000000e452fc08a0:NotInit  <<
00007ffd5d058838  4001a75       44          System.Byte  1 instance                1 _state
00007ffd5d040b50  4001a76       45       System.Boolean  1 instance                1 _lookForOce

Execute command: !C:\Windows\Microsoft.NET\Framework64\v4.0.30319\SOS.dll.do 0000000000000000
Invalid parameter 0000000000000000

Failed to parse the output of !do 0000000000000000: Invalid parameter 0000000000000000

Execute command: !C:\Windows\Microsoft.NET\Framework64\v4.0.30319\SOS.dll.do 0000000000000000
Invalid parameter 0000000000000000

Failed to parse the output of !do 0000000000000000: Invalid parameter 0000000000000000
AArnott commented 6 years ago

I'm not sure this windbg extension has been vetted for 64-bit dumps. That might be what you're running into here.

0UserName commented 4 years ago

@AArnott, is there any progress? I am trying to use the latest stable version for analysis of 64 bit dump, but ran into something similar.

Actual behavior

0:000> .load SosThreadingTools_x64.dll
0:000> !dumpasync
e0434352 Exception in SosThreadingTools_x64.dumpasync debugger extension.
      PC: 00007ffc`a6b54c48  VA: 00000000`00000000  R/W: 80070002  Parameter: 00000000`00000000

Version used: v16.4.39 x64 Application (if applicable): WinDbg 10.0.18362.1 x64

AArnott commented 4 years ago

In my tests it works. But we're relying on private implementation details of the CLR in this windbg extension so there's never a guarantee that it works over time or with all inputs. If you can share a dump (privately) that I can try it with, or if you can debug through it yourself (seeing as the extension is OSS) and send a PR to fix it, we can make progress on this.

0UserName commented 4 years ago

Unfortunately, I can not share the dump, as this will be a violation. I will try to reproduce the situation on a test dump and maybe I'll try to debug the extension myself, but I have almost no experience with C ++ and understanding the extension 'bindings'. In any case, it will take me some time.

AArnott commented 4 years ago

There's no C++ here. The !dumpasync extension is written in C#. The bindings you don't need to worry about.