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w3wp using 100% CPU and lots of crashes

  
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Sebastiao Pereira

External


Since: Mar 10, 2006
Posts: 1



(Msg. 1) Posted: Fri Mar 10, 2006 11:46 am
Post subject: w3wp using 100% CPU and lots of crashes
Archived from groups: microsoft>public>inetserver>iis (more info?)
I'm experiencing the following problems with a production server running
w2k3, IIS 6 and asp.net 2.0 RTM:

- The cpu is at 100% most of the time, when using the application, even with
few users accessing.
- Running debug diags and WinDbg shows me that a lot of crashes are
ocurring, but I'm having trouble trying to identify the reasons.

Below is one of the Debug Diags logs and part of what I got from WinDbg. Any
help would be highly appreciated. Thanks in advance!

Debug Diags
========
Report for w3wp__PID__2820__Date__03_09_2006__Time_05_49_47PM__994__First
chance exception 0XE0434F4E.dmp
Type of Analysis Performed Crash Analysis
Machine Name SRV-PRODUS-APP1
Operating System Windows Server 2003 Service Pack 1
Number Of Processors 1
Process ID 2820
Process Image c:\WINDOWS\system32\inetsrv\w3wp.exe
System Up-Time 11 day(s) 07:55:56
Process Up-Time 0 day(s) 02:29:58


Thread 17 - System ID 2420
Entry point mscorwks!Thread::intermediateThreadProc
Create time 3/9/2006 3:22:54 PM
Time spent in user mode 0 Days 0:10:45.296
Time spent in kernel mode 0 Days 0:0:8.203






Function Arg 1 Arg 2 Arg 3 Source
kernel32!RaiseException+53 e0434f4e 00000000 00000000
mscorwks!Thread::RedirectedHandledJITCase+155 00000000 06c4bd00
7934afdd
mscorwks!Thread::RedirectedHandledJITCaseForGCThreadControl+7 00000052
00000005 06c4bd00
mscorlib_ni+28afdd 002f003a 006e0069 00740065
63002f 00000000 00000000 00000000




In w3wp__PID__2820__Date__03_09_2006__Time_05_49_47PM__994__First chance
exception 0XE0434F4E.dmp the assembly instruction at
kernel32!RaiseException+53 in C:\WINDOWS\system32\kernel32.dll from Microsoft
Corporation has caused an unknown exception (0xe0434f4e) on thread 17



This exception originated from
mscorwks!Thread::RedirectedHandledJITCase+155. Module Information
Image Name: C:\WINDOWS\system32\kernel32.dll Symbol Type: PDB
Base address: 0x77e40000 Time Stamp: Thu Mar 24 21:30:42 2005
Checksum: 0x0010c135 Comments:
COM DLL: False Company Name: Microsoft Corporation
ISAPIExtension: False File Description: Windows NT BASE API Client DLL
ISAPIFilter: False File Version: 5.2.3790.1830 (srv03_sp1_rtm.050324-1447)
Managed DLL: False Internal Name: kernel32
VB DLL: False Legal Copyright: © Microsoft Corporation. All rights
reserved.
Loaded Image Name: kernel32.dll Legal Trademarks:
Mapped Image Name: Original filename: kernel32
Module name: kernel32 Private Build:
Single Threaded: False Product Name: Microsoft® Windows® Operating System
Module Size: 1.01 MBytes Product Version: 5.2.3790.1830
Symbol File Name:
c:\symcache\kernel32.pdb\75CFE96517E5450DA600C870E95399FF2\kernel32.pdb
Special Build: &

WinDBG
=====

Microsoft (R) Windows Debugger Version 6.6.0003.5
Copyright (c) Microsoft Corporation. All rights reserved.

*** wait with pending attach
Symbol search path is: C:\symcache;C:\SimplectT\Includes
Executable search path is:
ModLoad: 01000000 01005000 c:\windows\system32\inetsrv\w3wp.exe
ModLoad: 7c800000 7c8c0000 C:\WINDOWS\system32\ntdll.dll
ModLoad: 77e40000 77f42000 C:\WINDOWS\system32\kernel32.dll
ModLoad: 77ba0000 77bfa000 C:\WINDOWS\system32\msvcrt.dll
ModLoad: 77f50000 77fec000 C:\WINDOWS\system32\ADVAPI32.dll
ModLoad: 77c50000 77cef000 C:\WINDOWS\system32\RPCRT4.dll
ModLoad: 77380000 77412000 C:\WINDOWS\system32\USER32.dll
ModLoad: 77c00000 77c48000 C:\WINDOWS\system32\GDI32.dll
ModLoad: 77670000 777a4000 C:\WINDOWS\system32\ole32.dll
ModLoad: 64700000 6472d000 c:\windows\system32\inetsrv\IISUTIL.dll
ModLoad: 761b0000 76243000 C:\WINDOWS\system32\CRYPT32.dll
ModLoad: 76190000 761a2000 C:\WINDOWS\system32\MSASN1.dll
ModLoad: 10000000 102c5000 C:\WINDOWS\system32\xpsp2res.dll
ModLoad: 5a390000 5a3e8000 c:\windows\system32\inetsrv\w3core.dll
ModLoad: 5a420000 5a431000 C:\WINDOWS\system32\IISMAP.dll
ModLoad: 647b0000 647d7000 C:\WINDOWS\system32\IisRTL.DLL
ModLoad: 71c00000 71c17000 C:\WINDOWS\system32\WS2_32.dll
ModLoad: 71bf0000 71bf8000 C:\WINDOWS\system32\WS2HELP.dll
ModLoad: 62da0000 62da7000 c:\windows\system32\inetsrv\LONSINT.dll
ModLoad: 76f50000 76f63000 C:\WINDOWS\system32\Secur32.dll
ModLoad: 71c40000 71c98000 C:\WINDOWS\system32\NETAPI32.dll
ModLoad: 77d00000 77d8c000 C:\WINDOWS\system32\OLEAUT32.dll
ModLoad: 5b640000 5b658000 C:\WINDOWS\system32\strmfilt.dll
ModLoad: 67150000 67159000 C:\WINDOWS\system32\HTTPAPI.dll
ModLoad: 77da0000 77df2000 C:\WINDOWS\system32\SHLWAPI.dll
ModLoad: 5a400000 5a408000 c:\windows\system32\inetsrv\W3CACHE.dll
ModLoad: 5a300000 5a307000 c:\windows\system32\inetsrv\W3TP.dll
ModLoad: 5a3f0000 5a3f6000 c:\windows\system32\inetsrv\W3COMLOG.dll
ModLoad: 5a360000 5a36d000 c:\windows\system32\inetsrv\w3dt.dll
ModLoad: 60ba0000 60bb1000 c:\windows\system32\inetsrv\wamreg.DLL
ModLoad: 71bb0000 71bb9000 C:\WINDOWS\system32\WSOCK32.dll
ModLoad: 6d0f0000 6d110000 c:\windows\system32\inetsrv\iisres.dll
ModLoad: 777b0000 77833000 C:\WINDOWS\system32\CLBCatQ.DLL
ModLoad: 77010000 770d6000 C:\WINDOWS\system32\COMRes.dll
ModLoad: 77b90000 77b98000 C:\WINDOWS\system32\VERSION.dll
ModLoad: 608f0000 60901000 C:\WINDOWS\system32\ADMWPROX.DLL
ModLoad: 68000000 6802f000 C:\WINDOWS\system32\rsaenh.dll
ModLoad: 76b70000 76b7b000 C:\WINDOWS\system32\PSAPI.DLL
ModLoad: 60060000 60066000
C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\aspnet_filter.dll
ModLoad: 78130000 781cb000
C:\WINDOWS\WinSxS\x86_Microsoft.VC80.CRT_1fc8b3b9a1e18e3b_8.0.50727.42_x-ww_0DE06ACD\MSVCR80.dll
ModLoad: 5a320000 5a332000 c:\windows\system32\inetsrv\w3isapi.dll
ModLoad: 71b20000 71b61000 C:\WINDOWS\System32\mswsock.dll
ModLoad: 76ed0000 76ef9000 C:\WINDOWS\system32\DNSAPI.dll
ModLoad: 76f70000 76f77000 C:\WINDOWS\System32\winrnr.dll
ModLoad: 76f10000 76f3e000 C:\WINDOWS\system32\WLDAP32.dll
ModLoad: 76f80000 76f85000 C:\WINDOWS\system32\rasadhlp.dll
ModLoad: 685b0000 685ba000 C:\WINDOWS\system32\inetsrv\gzip.dll
ModLoad: 71bd0000 71be1000 C:\WINDOWS\system32\mpr.dll
ModLoad: 60070000 60075000
\\?\c:\windows\microsoft.net\framework\v2.0.50727\aspnet_isapi.dll
ModLoad: 6a2a0000 6a2ec000
\\?\c:\windows\microsoft.net\framework\v2.0.50727\webengine.dll
ModLoad: 76920000 769e4000 C:\WINDOWS\system32\USERENV.dll
ModLoad: 79000000 79045000 C:\WINDOWS\system32\mscoree.dll
ModLoad: 79e70000 7a3d1000
C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\mscorwks.dll
ModLoad: 7c8d0000 7d0d3000 C:\WINDOWS\system32\shell32.dll
ModLoad: 77420000 77523000
C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_6.0.3790.1830_x-ww_7AE38CCF\comctl32.dll
ModLoad: 790c0000 79ba8000
C:\WINDOWS\assembly\NativeImages_v2.0.50727_32\mscorlib\6df911eda598894586b469828d8091c2\mscorlib.ni.dll
ModLoad: 7a440000 7abfe000
C:\WINDOWS\assembly\NativeImages_v2.0.50727_32\System\386f307c7563c14890e24042e6bcd588\System.ni.dll
ModLoad: 685c0000 6910a000
C:\WINDOWS\assembly\NativeImages_v2.0.50727_32\System.Web\dda5e9320c628b41a322083d30cd2cc9\System.Web.ni.dll
ModLoad: 64890000 6497e000
C:\WINDOWS\assembly\NativeImages_v2.0.50727_32\System.Configuration\d1aba3ac501b41428f11a6d3379f3f62\System.Configuration.ni.dll
ModLoad: 69be0000 6a148000
C:\WINDOWS\assembly\NativeImages_v2.0.50727_32\System.Xml\04623acbfa7cda40a20f29246e05bdd0\System.Xml.ni.dll
ModLoad: 77e00000 77e22000 C:\WINDOWS\system32\NTMARTA.DLL
ModLoad: 5ccf0000 5ccff000 C:\WINDOWS\system32\SAMLIB.dll
ModLoad: 5e600000 5e858000
C:\WINDOWS\assembly\NativeImages_v2.0.50727_32\Microsoft.JScript\eca75f27521cf34d830faeddcfffb2fc\Microsoft.JScript.ni.dll
ModLoad: 01d80000 01d88000

<<Snipped>>

ModLoad: 5e380000 5e409000
C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\diasymreader.dll
(4e8.1080): Break instruction exception - code 80000003 (first chance)
eax=7ffdf000 ebx=00000001 ecx=00000002 edx=00000003 esi=00000004 edi=00000005
eip=7c822583 esp=063fffcc ebp=063ffff4 iopl=0 nv up ei pl zr na po nc
cs=001b ss=0023 ds=0023 es=0023 fs=0038 gs=0000 efl=00000246
ntdll!DbgBreakPoint:
7c822583 cc int 3
0:016> g
(4e8.13c): CLR exception - code e0434f4d (first chance)
(4e8.13c): CLR exception - code e0434f4d (first chance)
(4e8.13c): CLR exception - code e0434f4d (first chance)
(4e8.c74): CLR exception - code e0434f4d (first chance)
(4e8.c74): CLR exception - code e0434f4d (first chance)
(4e8.13c): C++ EH exception - code e06d7363 (first chance)
(4e8.13c): C++ EH exception - code e06d7363 (first chance)
(4e8.c74): Unknown exception - code e0434f4e (first chance)
(4e8.c74): CLR exception - code e0434f4d (first chance)
(4e8.13c): Unknown exception - code e0434f4e (first chance)
(4e8.13c): Unknown exception - code e0434f4e (first chance)
(4e8.13c): Unknown exception - code e0434f4e (first chance)
(4e8.13c): Unknown exception - code e0434f4e (first chance)
(4e8.1194): Break instruction exception - code 80000003 (first chance)
eax=7ffdf000 ebx=00000001 ecx=00000002 edx=00000003 esi=00000004 edi=00000005
eip=7c822583 esp=017fffcc ebp=017ffff4 iopl=0 nv up ei pl zr na po nc
cs=001b ss=0023 ds=0023 es=0023 fs=0038 gs=0000 efl=00000246
ntdll!DbgBreakPoint:
7c822583 cc int 3
*** WARNING: Unable to verify checksum for
C:\WINDOWS\assembly\NativeImages_v2.0.50727_32\mscorlib\6df911eda598894586b469828d8091c2\mscorlib.ni.dll
*** WARNING: Unable to verify checksum for
C:\WINDOWS\assembly\NativeImages_v2.0.50727_32\Simplect.Core\ce456199c245154bbe00001b9f47cc12\Simplect.Core.ni.dll

CallStack for thread 13c:

ntdll!KiFastSystemCallRet
ntdll!NtGetContextThread+0xc
kernel32!GetThreadContext+0x11
mscorwks!EnsureThreadIsSuspended+0x3f
mscorwks!Thread::SuspendThread+0xd0
mscorwks!Thread::SysSuspendForGC+0x265
mscorwks!WKS::GCHeap::SuspendEE+0x16c
mscorwks!WKS::GCHeap::GarbageCollectGeneration+0x25b
mscorwks!WKS::gc_heap::try_allocate_more_space+0x1a1
mscorwks!WKS::gc_heap::allocate_more_space+0x18
mscorwks!WKS::GCHeap::Alloc+0x6c
mscorwks!Alloc+0x72
mscorwks!SlowAllocateString+0x29
mscorwks!UnframedAllocateString+0xc
mscorwks!COMString::NewString+0x24
mscorwks!COMString::NewString+0x79
mscorwks!AssemblyNative::GetSimpleName+0xc5
mscorlib_ni+0x335ba3
Simplect_Core_ni!set_Item+0x17
mscorlib_ni+0x2ef6cd

 >> Stay informed about: w3wp using 100% CPU and lots of crashes 
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"Egbert Nierop

External


Since: Oct 14, 2005
Posts: 201



(Msg. 2) Posted: Sat Mar 11, 2006 4:55 am
Post subject: Re: w3wp using 100% CPU and lots of crashes [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
"Sebastiao Pereira" <Sebastiao Pereira DeleteThis @discussions.microsoft.com> wrote in
message news:42BE1F78-32B4-476B-8753-97031EF55858@microsoft.com...
> I'm experiencing the following problems with a production server running
> w2k3, IIS 6 and asp.net 2.0 RTM:
>
> - The cpu is at 100% most of the time, when using the application, even
> with
> few users accessing.
> - Running debug diags and WinDbg shows me that a lot of crashes are
> ocurring, but I'm having trouble trying to identify the reasons.
>
> Below is one of the Debug Diags logs and part of what I got from WinDbg.
> Any
> help would be highly appreciated. Thanks in advance!

The 100% might indicate a loop bug in your jscript.net code.
To be sure, you should set the debug = "True" attribute in web.Config and
attach a debugger like visual studio.
Also the W3SVC logs, might indicate which script was executed before w3wp
crashed.

 >> Stay informed about: w3wp using 100% CPU and lots of crashes 
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