Bug 57847 – Crash logs not generated in 64-bit Windows 7

• Component: Tools / Tests
• Status: RESOLVED FIXED

[Pere Martir]

Created attachment 88229 [details]
Proposed patch

run-webkit-tests doesn't find the correct location of ntsd.exe (NT Symbolic Debugger) in 64-bit Windows.

To generate the crash logs, "Debugging Tools for Windows 32-bit Version" must be installed as indicated in http://trac.webkit.org/wiki/BuildingOnWindows#GettingCrashLogs

Debugging Tools now comes with Windows SDK and the default installation directory (not likely configurable) in 64-bit Windows is:

  C:\Program Files\Debugging Tools for Windows (x64)

Tools/Scripts/old-run-webkit-tests instead looks for:

  C:\Program Files (x86)/Debugging Tools for Windows (x86)

Note that "the 64-bit versions of Debugging Tools for Windows allow you to debug both 32-bit and 64-bit user-mode applications running on 64-bit processors."  64-bit version of Debugging Tools is also the one installed by Windows SDK.

I've modified old-run-webkit-tests and successfully generated the crash logs.

[Alexey Proskuryakov]

This sounds very interesting!

> http://trac.webkit.org/wiki/BuildingOnWindows#GettingCrashLogs

That data should probably be in <http://www.webkit.org/quality/crashlogs.html>. Since WebKit site is in svn, one can just make a patch for it.

[Adam Roben (:aroben)]

Comment on attachment 88229 [details]
Proposed patch

The code change here looks fine. Thanks for fixing the bug!

However, your patch needs a ChangeLog. <http://www.webkit.org/coding/contributing.html> explains how to write one.

[Adam Roben (:aroben)]

(In reply to comment #1)
> This sounds very interesting!
> 
> > http://trac.webkit.org/wiki/BuildingOnWindows#GettingCrashLogs
> 
> That data should probably be in <http://www.webkit.org/quality/crashlogs.html>. Since WebKit site is in svn, one can just make a patch for it.

The wiki page is specifically about getting run-webkit-tests to save crash logs automatically. The webkit.org page isn't specifically about run-webkit-tests. But maybe the info could be added there anyway.

[Alexey Proskuryakov]

What I meant was that the webkit.org page didn't have any information about getting crash logs under Windows 7 at all.

[Adam Roben (:aroben)]

Oh, I see. The webkit.org page should be changed to say "Windows Vista or Windows 7", since the same technique works on both.

[Pere Martir]

Created attachment 88412 [details]
Proposed patch with ChangeLog

Some other points should also be modified in the trac Wiki.

* I wondered if the test script also works in 64-bit since the wiki says very explicitly - installing "32-bit" Debugging Tools.

* The wiki page doesn't mention that the Registry value "ForceQueue" must be set
to 1 so that the crash logs are stored automatically, otherwise some
GUI dialogs will pop up and pause the test script. This is actually mentioned in http://www.webkit.org/quality/crashlogs.html

[Adam Roben (:aroben)]

(In reply to comment #6)
> Some other points should also be modified in the trac Wiki.

Since it's a wiki, feel free to make the modifications yourself.

> * I wondered if the test script also works in 64-bit since the wiki says very explicitly - installing "32-bit" Debugging Tools.

I think we were just mistaken before that the 64-bit tools wouldn't work. (The 32-bit tools are still a good idea to have installed, though, since AFAIK you need the 32-bit tools for gflags to work, e.g.)

> * The wiki page doesn't mention that the Registry value "ForceQueue" must be set
> to 1 so that the crash logs are stored automatically, otherwise some
> GUI dialogs will pop up and pause the test script. This is actually mentioned in http://www.webkit.org/quality/crashlogs.html

The wiki page is all about getting run-webkit-tests's automatic crash log saving to work. Is ForceQueue really needed for that? run-webkit-tests installs a post-mortem debugger, which should prevent the WER dialog from appearing at all.

[Adam Roben (:aroben)]

Pere, if you want your patch to be committed you should mark it cq?.

[WebKit Review Bot]

Comment on attachment 88412 [details]
Proposed patch with ChangeLog

Rejecting attachment 88412 [details] from commit-queue.

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[Adam Roben (:aroben)]

Comment on attachment 88412 [details]
Proposed patch with ChangeLog

Non-committers should mark patches cq?. Then a committer can mark it cq+.

[WebKit Commit Bot]

Comment on attachment 88412 [details]
Proposed patch with ChangeLog

Clearing flags on attachment: 88412

Committed r83310: <http://trac.webkit.org/changeset/83310>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.