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Questions tagged [sos]

SOS is a debugger extension that allows a developer to inspect the managed state of a .NET Core and desktop runtime process. SOS can be loaded by WinDbg/cdb debuggers on Windows and lldb on Linux and macOS.

SOS (Son of Strike) is a debugger extension that allows a developer to inspect the managed state of a .NET Core and desktop runtime process. SOS can be loaded by WinDbg/cdb debuggers on Windows and lldb on Linux and macOS.

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AppDomain Stage Meaning

In windbg using sos I can dump all the appdomains and they have a stage on them. I can't find any documentation stating what each of these stages mean. I assume this is documented but the property must not be stage and windbg just calls it stage, or…
Max Young
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UNKNOWN classes in dumpheap sos plugin in linux

I try to detect memory leak on my .net core server and make memory dump via gcore. Try to analyze it via lldb and sos on debian 9. ulimit -c unlimited sudo gcore -o dump $(pidof dotnet) sudo lldb-4.0 $(which dotnet) --core ./dump.MY_PID (lldb)…
Vladislav Yakushev
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Error starting ApplicationContext. To display the conditions report re-run your application with 'debug'

I need help what is the problem i cant fix it i am so frustrated /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \ ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \ \\/ ___)| |_)| | | | | || (_| | ) ) ) ) ' |____| .__|_| |_|_| |_\__, | / / / / …
Jürgen Ruegenberg
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cannot run sos comamnd for Silverlight 4.0 app in IE 8.0

I am trying to debug my silverlight application running under IE8.0. Its using .NET framework 4.0 and Silverlight 4.0. So I attach Windbg to IE running instance, I understand that with IE8 I need to connect to right instance of internet explorer. So…
Silverlight Student
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Unable to find root cause of ArgumentException

I'm investigating the cause of the huge amount of ArgumentException in an application (and I'm suspecting that its main reason for memory fragmentation/out of memory exception). The problem is that I can't find where this exception is coming from.…
Ivan Milosavljevic
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Source code information missing with SOS/SOSEX

I'm using cdb with the sosex extension. Everything seems to be working fine except that I am unable to get any !mbp breakpoints to to resolve and !mu/!muf don't show source info. Got going with the following commands: .lines sxe ld:clrjit g .loadby…
Tom
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Difference between !sos.rcw and !sos.dumprcw output

Recently I needed to debug a memory dump of a CLR process where the finalization queue was being blocked by a COM object. While I have largely identified the issue, I am not sure about the difference between some of the output and seek some…
Dono
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Visual Studio can locate mscordacwks but WinDBG fails

I've been working on a tool to pull some information out of crash dumps (minidumps) and create a report. In some cases I'm finding that WinDBG is unable to automatically download the correct combination of mscordacwks and SOS. The source of the…
rupertmulrenan
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"Missing" information with `Name2EE`

Advanced .NET Debugging says that, when I run !Name2EE I should get some output that includes the JITTED Code Address. 0:004>!name2ee 03Breakpoint.exe Advanced.NET.Debugging.Chapter3.Breakpoint.AddAndPrint Module: 00c2db8c…
BanksySan
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View managed stack from a full memory dump

My managed process is suspected to have caused a BSOD at a client site. I received a full memory dump (i.e.: including kernel, physical pages only) - but still am not able to inspect my process' stacks. After switching to my process context…
Ofek Shilon
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windbg: version of loaded assemblies

does anybody know how to figure out the assembly versions (not file versions) of loaded assemblies if I have a full memory dump? Suppose I have a full dump of the .net process and I found two assemblies with the same name loaded in one AppDomain. I…
AC.
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onchange event on a textbox when i type a number or string

So i got this exercise at my school and i cant for the life of me find the answer here is : Take advantage of the onchange event to make a page with a text box where if the user types a number, it will turn yellow if you type a String then turn…
Black Mamba
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For k collections all of which have length = N, finding common elements with a O((k-1)*N)

I am supposed to write a code which is supposed to find the common elements existing in k collections of N-elements efficiently. All collections are sorted and they may have various sizes, but let's assume same sizes for the sake of simplicity here.…
Behrooz Moradi Bajestani
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3GB strings in Gen 2, How to dump limited large objects in Gen 2 only?

by using command !dumpgen 2 -stat, I find that there are 3GB strings, 23,531,124 3,110,704,598 System.String, if I dump all of them, it will hang the windbg, is there any way I can only dump limited large object result in Gen 2 only? thus I…
Sky Line
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What command in SOS windbg can dump heap for Gen 2 and LOH only?

I got a high memory dump to investigate. when I use !eeheap -gc, it gives 20 heaps, each heap has Gen 2 and LOH address info and size info. However I want to get a overall summary of Gen 2 and LOH, and see a statistic summary on what objects are…
Sky Line
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