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crash on Windows Azure Windows guests

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abstractius

18 Sep, 2013 06:44 PM

I was able to run Geekbench in Azure's Linux guests, but it has mostly been crashing on me in the Windows Server environments one can run in Azure, towards the end of the process in fact, always at Stream Copy I think. The message is "Unhandled exception at 0x00CDD592 in geekbench_x86_32.exe: 0xC0000005: Access violation writing location 0x00000008."

I doubt the dissassembly around the breakpoint in Visual Studio will be of much help, but here it is, the pointer was at ..92

00CDD556 push edi
00CDD557 test ebx,ebx
00CDD559 jne 00CDD56F
00CDD55B push 36h
00CDD55D push 0E42C84h
00CDD562 push 0E42CB4h
00CDD567 call 00E0DEF6
00CDD56C add esp,0Ch
00CDD56F mov esi,dword ptr [esp+10h]
00CDD573 lea eax,[esi+7]
00CDD576 add eax,ebx
00CDD578 push eax
00CDD579 call 00E0E598
00CDD57E lea edi,[ebx+7]
00CDD581 lea ecx,[ebx-1]
00CDD584 not ecx
00CDD586 add edi,eax
00CDD588 and edi,ecx
00CDD58A add esp,4
00CDD58D mov ecx,0EBC704h
00CDD592 mov dword ptr [edi-8],esi
00CDD595 mov dword ptr [edi-4],eax
00CDD598 call 00DDF740
00CDD59D mov edx,dword ptr ds:[0EBC724h]
00CDD5A3 add edx,esi
00CDD5A5 cmp edx,dword ptr ds:[0EBC728h]
00CDD5AB mov eax,0EBC724h
00CDD5B0 mov esi,0EBC728h
00CDD5B5 cmovae esi,eax
00CDD5B8 mov dword ptr ds:[0EBC724h],edx
00CDD5BE mov edx,dword ptr [esi]
00CDD5C0 mov ecx,0EBC704h
00CDD5C5 mov dword ptr ds:[0EBC728h],edx
00CDD5CB call 00DDF750
00CDD5D0 mov eax,edi
00CDD5D2 pop edi
00CDD5D3 pop esi
00CDD5D4 pop ebx

1. Support Staff 1 Posted by John on 18 Sep, 2013 06:57 PM

   

   Could you try the latest version of Geekbench 3? It fixes a crash in the STREAM Copy workload that might be the same crash you're encountering:

   http://geekbench.s3.amazonaws.com/Geekbench-3.1.0-WindowsSetup.exe

   Let me know whether that solves the problem for you!

   Thanks,
   John

   • Edit

2. 2 Posted by abstractius on 20 Sep, 2013 06:57 AM

   

   yes. it looks like problem solved. Of course all results are marked as inaccurate, I guess we cannot help it!

   • Edit

3. Support Staff 3 Posted by John on 20 Sep, 2013 06:58 AM

   

   I'm glad to hear the new build fixed the problem. Could you send me a link to a result that's marked as inaccurate? I'd like to take a closer look.

   Thanks,
   John

   • Edit

4. 4 Posted by abstractius on 20 Sep, 2013 07:19 AM

   

   oops, I've just read your mind, you are going to whitelist Azure until someone finds a way to cheat :)

   http://browser.primatelabs.com/geekbench3/70241thttp://browser.primatelabs.com/geekbench3/70241

   1137 7070
   Result Information
   Upload Date 2013-09-20
   Views 2
   System Information
   Microsoft Corporation Virtual Machine
   Operating System Microsoft Windows Server 2012 Datacenter (64-bit)
   Model Microsoft Corporation Virtual Machine
   Processor AMD Opteron 4171 HE @ 2.10 GHz
   2 processors, 8 cores

   • Edit

5. Support Staff 5 Posted by John on 23 Sep, 2013 05:17 AM

   

   We've fixed the bug that was causing your results to be flagged as invalid, and have removed the flag from your results.

   Let me know if you have any other questions and I'd be happy to help out.

   Best,
   John

   • Edit