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Creating DebugDiag 2 rule to generate SharePoint 2010-2016 process dump based on ULS Tags and Message

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I had previously discussed this topic here but it would not work for ULS tags with 5 digits (SharePoint 2013 and beyond). This post will guide you to create the rule for this particular ULS log entry:

First, download DebugDiag 2 Update 2 or greater. As of the time of this writing it can be downloaded here.

In our proof-of-concept, or case study, we will generate a dump file only and only if the logged message has tag ai108 and contain “load XML” in the message like the row below:

 

05/04/2016 12:28:50.92 w3wp.exe (0x1C9C) 0x416C SharePoint Foundation Object Cache ai108 Medium Failed on try2 to load XML document at path 'C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\12\Template\Features\PowerViewStapling\feature.xml': System.IO.DirectoryNotFoundException: Could not find a part of the path (etc…)

 

Steps:

1. Run DebugDiag 2 Collection

2. Choose crash rule and click Next

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3. As I am capturing dump from a SharePoint web application I will choose “A specific IIS web application pool” and click Next. For Timer Services I would choose a specific NT service and then SharePoint Timer Service.

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4. Then I will choose the application pool for the web application I want to capture the process dump (you can find the application pool name associated with the in Central Administration / Manage Web Applications) then click Next

 

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5. On Advanced Configuration, I will limit the number of dumps created by the rule to 1 (for a different requirement it can be a different number)

6. I will then click on the BreakPoints button

7. In configure breakpoint. click Add Breakpoint…

8. Enter onetnative!ULSSendFormattedTrace as Breakpoint Expression and Action Limit to 0 which means no limit:

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9. On the Action Type dropdown, choose Custom…

10. Replace the code in the window by this one:

Dim Tag1Dim TargetTag1TargetTag1 = "ai108" 'Replace it by your desired ULS TagDim PartialText1PartialText1 = "load XML" 'Replace it by part of the message in ULS Logs or make it "" for all messagesTag1 = Debugger.Execute("r @$t1=@ecx;.if (@$t1 >> 18 < 24) { r @$t2=@$t1>>18 & 3f; r @$t3=@$t1>>12 & 3f; r@$t4=@$t1>>0c & 3f; r @$t5=@$t1>>6 & 3f;r @$t6=@$t1 & 3f;.printf ""%C%C%C%C%C"",@@c++(@$t2 > 0x19 ? @$t2 + 0x16 : @$t2+'a'),@@c++(@$t3 > 0x19 ? @$t3 + 0x16 : @$t3+'a'),@@c++(@$t4 > 0x19 ? @$t4 + 0x16 : @$t4+'a'),@@c++(@$t5 > 0x19 ? @$t5 + 0x16 : @$t5+'a'),@@c++(@$t6 > 0x19 ? @$t6 + 0x16 : @$t6+'a');} .else { .printf ""%C%C%C%C"", @$t1>>18,@$t1>>10,@$t1>>8,@$t1; };")WriteToLog "Tag: " & Tag1 'To avoid DebugDiag log flood comment you may remove this line' Test if the tag matchesIf InStr(Tag1,TargetTag1)>0 Then'Only fetch message if necessaryDim Message1Message1 = ""If PartialText1 <> "" ThenMessage1 = Debugger.Execute(".printf ""%mu"",@r9")'WriteToLog "Messadge: " & Message1 'Uncomment this line if you wish to log the messageEnd IfIf Message1 = "" Or InStr(Message1,PartialText1) > 0 Then' You can change the action to log the stack trace for exampleCreateDump "For Tag " & Tag1, falseEnd IfEnd If

11. If it looks like it, press OK

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12 If your window look like this, click Ok

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13. Click Yes to this warning

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14. Click Add Breakpoint… again

15. Enter Microsoft_Office_Server_Native!ULSSendFormattedTrace as Breakpoint Expression and Action Limit to 0 (no limit).

16. In Action Type dropdown, choose Custom…

17. Replace the code in the window by this one:

Dim Tag2 Dim TargetTag2 TargetTag2 = "ai108" 'Replace it by your desired ULS Tag Dim PartialText2 PartialText2 = "load XML" 'Replace it by part of the message in ULS Logs or make it "" for all messages Tag2 = Debugger.Execute("r @$t1=@ecx;.if (@$t1 >> 18 < 24) { r @$t2=@$t1>>18 & 3f; r @$t3=@$t1>>12 & 3f; r@$t4=@$t1>>0c & 3f; r @$t5=@$t1>>6 & 3f;r @$t6=@$t1 & 3f;.printf ""%C%C%C%C%C"",@@c++(@$t2 > 0x19 ? @$t2 + 0x16 : @$t2+'a'),@@c++(@$t3 > 0x19 ? @$t3 + 0x16 : @$t3+'a'),@@c++(@$t4 > 0x19 ? @$t4 + 0x16 : @$t4+'a'),@@c++(@$t5 > 0x19 ? @$t5 + 0x16 : @$t5+'a'),@@c++(@$t6 > 0x19 ? @$t6 + 0x16 : @$t6+'a');} .else { .printf ""%C%C%C%C"", @$t1>>18,@$t1>>10,@$t1>>8,@$t1; };") WriteToLog "Tag: " & Tag2 'To avoid DebugDiag log flood comment you may remove this line ' Test if the tag matches If InStr(Tag2,TargetTag2)>0 Then 'Only fetch message if necessary Dim Message2 Message2 = "" If PartialText2 <> "" Then Message2 = Debugger.Execute(".printf ""%mu"",@r9") 'WriteToLog "Messadge: " & Message2 'Uncomment this line if you wish to log the message End If If Message2 = "" Or InStr(Message2,PartialText2) > 0 Then ' You can change the action to log the stack trace for example CreateDump "For Tag " & Tag2, false End If End If

 

18. If it looks like this you can click OK

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19. If things are correct, you should see this:

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20. Click Ok

21. Click Yes to the warning

22. If you see this, click Save & Close:

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23. If you see this you can click Next (notice that I changed the limit of dumps from 10 to 1):

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24. By default logs and dumps are saved at C:\Program Files\DebugDiag\Logs\. It is ok to keep the default, but some environments cannot hold big files on disk C:. To change the folder replace C:\Program Files\DebugDiag\Logs\ by your new disk folder (but please let the crash rule subfolder as it is). This is the moment to do so:

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25. In my test, I replaced the folder to c:\temp (the folder does not need to exist)

26. You may see this warning if the folder does not exist, just click Yes

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27. You can activate the rule now and click Finish

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28. Now when it captures 1 dump file it will be marked as complete

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Comments

  • Anonymous
    May 27, 2016
    The comment has been removed
    • Anonymous
      May 27, 2016
      Hi Piotr,Thanks for the feedback. The tags are packed in 6 bytes sets for 5 bytes.The code below may help you: internal static int Char2Index(Char Chr) { if (Chr >= 'a' && Chr = '0' && Chr <= '9') return 1 + Chr - '0' + ('z' - 'a'); // something went wrong :( return -1; } public static uint StrToTag(string StrTag) { if (StrTag.Length == 4) { long t = (((long)StrTag[0]) << 24) + ((long)StrTag[1] << 16) + ((long)StrTag[2] << 8) + ((long)StrTag[3]); return (uint)t; } if (StrTag.Length == 5) { uint sum = 0; for (int i = 0; i <= 4; i++) { sum = sum << 6; sum += (uint)Char2Index(StrTag[i]); } return (uint)sum; } return 0; // Something wen wrong :( }Please publish the script after you finish and put a link here in the comments
      • Anonymous
        May 27, 2016
        ERRATA: 6 bytes pack = 6 bits packs
        • Anonymous
          May 30, 2016
          I think I figured it out.https://gallery.technet.microsoft.com/SharePoint-2013-Process-b7e2c4c5The idea is that it's an array "a..z0..9" and the indexes are being encoded.Thanks.
  • Anonymous
    June 01, 2016
    Just a quick note: on Office Online Server 2016 attach to uls_native!ULSSendFormattedTrace
  • Anonymous
    June 06, 2016
    Just a heads up I had to change this for both breakpoints: PartialText2 = "load XML" To this: PartialText2 = ""