umbraco worker process crashes

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chris 69 posts 92 karma points

Mar 14, 2011 @ 22:57

General

I'm using umbraco v 4.0.4.2 with Win 08 x64 R2 SP1. I've been getting a lot of these errors, usually within a few minutes of each other in the system event viewer:

Faulting application name: w3wp.exe, version: 7.5.7601.17514, time stamp: 0x4ce7afa2
Faulting module name: ntdll.dll, version: 6.1.7601.17514, time stamp: 0x4ce7c8f9
Exception code: 0xc0000374
Fault offset: 0x00000000000c40f2
Faulting process id: 0xcbc
Faulting application start time: 0x01cbe290563f1d38
Faulting application path: c:\windows\system32\inetsrv\w3wp.exe
Faulting module path: C:\Windows\SYSTEM32\ntdll.dll
Report Id: bedd3712-4e84-11e0-a5d6-000c29b6af78

in the application event viewer, I get this:

A process serving application pool 'Umbraco' terminated unexpectedly. The process id was '3260'. The process exit code was '0xff'.

Using DebugDiag, I'd get these:

Function     Arg 1     Arg 2     Arg 3   Source
ntdll!RtlpLowFragHeapFree+31     012647c8     1b0e6ce0     75f214c9   
ntdll!RtlFreeHeap+105     001d0000     00000000     00ff4630   
kernel32!HeapFree+14     001d0000     00000000     00ff4630   
cachhttp!RESPONSE_ENTRY::~RESPONSE_ENTRY+c1     012647c8     00ddfaf8     74354a92   
cachhttp!RESPONSE_ENTRY::`scalar deleting destructor'+d     00000001     01264750     74354b1a   
cachhttp!RESPONSE_ENTRY::DereferenceResponseEntry+20     01264438     74354bc8     01264438   
cachhttp!OUTPUT_ENTRY::ClearIdentityResponseEntry+1b     01264438     74354c0e     01264438   
cachhttp!OUTPUT_ENTRY::~OUTPUT_ENTRY+a     01264438     00ddfb0c     74355309   
cachhttp!OUTPUT_ENTRY::`scalar deleting destructor'+d     00000001     00ddfb60     74358ffa   
cachhttp!OUTPUT_ENTRY::DereferenceOutputEntry+1d     00ddfb2c     743a5ff1     01264438   
cachhttp!OUTPUT_CACHE::AddRefRecord+24     01264438     ffffffff     00fb1848   
iisutil!CLKRLinearHashTable::_DeleteNode+1f     00fbc7e0     00ddfb54     00ddfb50   
iisutil!CLKRLinearHashTable::_DeleteIf+a3     7435387e     00ddfb98     00ddfb84   
iisutil!CLKRHashTable::DeleteIf+4a     7435387e     00ddfb98     743589ae   
cachhttp!CTypedHashTable<UL_RESPONSE_CACHE,UL_RESPONSE_CACHE_ENTRY,UL_RESPONSE_CACHE_KEY *,CLKRHashTable>::DeleteIf+2b     743589ae     00000000     00000000   
cachhttp!OUTPUT_CACHE::ScavengerCallback+d2     00000000     00000001     65015024   
ntdll!RtlpTpTimerCallback+7a     00ddfc9c     1b19a868     00270d60   
ntdll!TppTimerpExecuteCallback+10f     00ddfc9c     00270dc0     650151d8   
ntdll!TppWorkerThread+572     00205038     00ddfe0c     776c9ed2   
kernel32!BaseThreadInitThunk+e     00205038     65015214     00000000   
ntdll!__RtlUserThreadStart+70     776d6679     00205038     ffffffff   
ntdll!_RtlUserThreadStart+1b     776d6679     00205038     00000000

Function	Arg 1	Arg 2	Arg 3
ntdll!RtlpLowFragHeapFree+31	012647c8	1b0e6ce0	75f214c9
ntdll!RtlFreeHeap+105	001d0000	00000000	00ff4630
kernel32!HeapFree+14	001d0000	00000000	00ff4630
cachhttp!RESPONSE_ENTRY::~RESPONSE_ENTRY+c1	012647c8	00ddfaf8	74354a92
cachhttp!RESPONSE_ENTRY::`scalar deleting destructor'+d	00000001	01264750	74354b1a
cachhttp!RESPONSE_ENTRY::DereferenceResponseEntry+20	01264438	74354bc8	01264438
cachhttp!OUTPUT_ENTRY::ClearIdentityResponseEntry+1b	01264438	74354c0e	01264438
cachhttp!OUTPUT_ENTRY::~OUTPUT_ENTRY+a	01264438	00ddfb0c	74355309
cachhttp!OUTPUT_ENTRY::`scalar deleting destructor'+d	00000001	00ddfb60	74358ffa
cachhttp!OUTPUT_ENTRY::DereferenceOutputEntry+1d	00ddfb2c	743a5ff1	01264438
cachhttp!OUTPUT_CACHE::AddRefRecord+24	01264438	ffffffff	00fb1848
iisutil!CLKRLinearHashTable::_DeleteNode+1f	00fbc7e0	00ddfb54	00ddfb50
iisutil!CLKRLinearHashTable::_DeleteIf+a3	7435387e	00ddfb98	00ddfb84
iisutil!CLKRHashTable::DeleteIf+4a	7435387e	00ddfb98	743589ae
cachhttp!CTypedHashTable<UL_RESPONSE_CACHE,UL_RESPONSE_CACHE_ENTRY,UL_RESPONSE_CACHE_KEY *,CLKRHashTable>::DeleteIf+2b	743589ae	00000000	00000000
cachhttp!OUTPUT_CACHE::ScavengerCallback+d2	00000000	00000001	65015024
ntdll!RtlpTpTimerCallback+7a	00ddfc9c	1b19a868	00270d60
ntdll!TppTimerpExecuteCallback+10f	00ddfc9c	00270dc0	650151d8
ntdll!TppWorkerThread+572	00205038	00ddfe0c	776c9ed2
kernel32!BaseThreadInitThunk+e	00205038	65015214	00000000
ntdll!__RtlUserThreadStart+70	776d6679	00205038	ffffffff
ntdll!_RtlUserThreadStart+1b	776d6679	00205038	00000000

So it seems it crashes in ntdll.dll. I have my umbraco installation running on a separate process NETWORK SERVICE. It doesn't seem to affect the site performance or function, it works, I just get a lot of these errors. I'm not sure if the IIS caching is causing this problem.

Anyone else seen these errors before on umbraco installation?

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chris 69 posts 92 karma points

Mar 14, 2011 @ 23:17

0

I looked up the details under System event viewer, under the details, the error is 8007006D. I looked this up, there's some talk in MSKB about not having NETWORK SERVICE permission to the registry, but that's for IIS 6. Not sure if umbraco accesses the registry at all.

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chris 69 posts 92 karma points

Mar 15, 2011 @ 20:42

0

I fixed this by disabling kernel-mode caching. Strange, but it works.

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