IIS hanging

[oferbar]

Hi,

Yesterday my IIS (on W2k3) stopped responding to any client requests.

After some investigation, it turned out to be the fault of the ynpagent DLL.

I don't know why, but if I unregister the DLL and restart IIS it works fine.

Here's the log file for the w3wp process, maybe this can help.

Thx

----------------------------------------------------


[YourKit Profiler 4.5.4 for .NET]
OS: Windows 2003 5.2
CLR: v2.0.50727
'c:\windows\system32\inetsrv\w3wp.exe' started 25.11.2009 at 11:30
[ 0.001] getStartupStringOption(YNP_IGNORE_LIST2):
[ 0.002] env is NULL
[ 0.002] returning NULL (1)
[ 0.003] getStartupStringOption(YNP_FILTERS_PATH):
[ 0.003] env is NULL
[ 0.003] returning NULL (1)
[ 0.004] getStartupStringOption(YNP_WALLTIMESPEC_PATH):
[ 0.004] env is NULL
[ 0.004] returning C:\Documents and Settings\Administrator\.ynp\config\.walltime
[ 0.006] agent is listening on port 10001

[ 8.694] [getMethodByFunctionID] ExceptionAddress = 7C81BD02
[ 8.695] [getMethodByFunctionID] ExceptionCode = -1073741819
[ 8.695] [getMethodByFunctionID] ExceptionFlags = 0
[ 8.696] [getMethodByFunctionID] ExceptionRecord = 00000000
[ 8.696] [getMethodByFunctionID] NumberParameters = 2
[ 8.696] [getMethodByFunctionID] ExceptionInformation[0] = 0

[ 8.697] [getMethodByFunctionID] ExceptionInformation[1] = 5455

[ 8.704] [getMethodByFunctionID] ExceptionAddress = 7C81BD02
[ 8.704] [getMethodByFunctionID] ExceptionCode = -1073741819
[ 8.705] [getMethodByFunctionID] ExceptionFlags = 16
[ 8.705] [getMethodByFunctionID] ExceptionRecord = 00000000
[ 8.705] [getMethodByFunctionID] NumberParameters = 2
[ 8.706] [getMethodByFunctionID] ExceptionInformation[0] = 0

[ 8.706] [getMethodByFunctionID] ExceptionInformation[1] = 5455

[ 8.713] [getMethodByFunctionID] ExceptionAddress = 7C81BD02
[ 8.714] [getMethodByFunctionID] ExceptionCode = -1073741819
[ 8.714] [getMethodByFunctionID] ExceptionFlags = 16
[ 8.714] [getMethodByFunctionID] ExceptionRecord = 00000000
[ 8.715] [getMethodByFunctionID] NumberParameters = 2
[ 8.715] [getMethodByFunctionID] ExceptionInformation[0] = 0

[ 8.715] [getMethodByFunctionID] ExceptionInformation[1] = 5455

[ 8.723] [getMethodByFunctionID] ExceptionAddress = 7C81BD02
[ 8.723] [getMethodByFunctionID] ExceptionCode = -1073741819
[ 8.724] [getMethodByFunctionID] ExceptionFlags = 16
[ 8.724] [getMethodByFunctionID] ExceptionRecord = 00000000
[ 8.724] [getMethodByFunctionID] NumberParameters = 2
[ 8.725] [getMethodByFunctionID] ExceptionInformation[0] = 0

[ 8.725] [getMethodByFunctionID] ExceptionInformation[1] = 5455

[ 8.733] [getMethodByFunctionID] ExceptionAddress = 7C81BD02
[ 8.733] [getMethodByFunctionID] ExceptionCode = -1073741819
[ 8.733] [getMethodByFunctionID] ExceptionFlags = 16
[ 8.734] [getMethodByFunctionID] ExceptionRecord = 00000000
[ 8.734] [getMethodByFunctionID] NumberParameters = 2
[ 8.734] [getMethodByFunctionID] ExceptionInformation[0] = 0

[ 8.735] [getMethodByFunctionID] ExceptionInformation[1] = 5455

[ 8.742] [getMethodByFunctionID] ExceptionAddress = 7C81BD02
[ 8.742] [getMethodByFunctionID] ExceptionCode = -1073741819
[ 8.743] [getMethodByFunctionID] ExceptionFlags = 16
[ 8.743] [getMethodByFunctionID] ExceptionRecord = 00000000
[ 8.743] [getMethodByFunctionID] NumberParameters = 2
[ 8.744] [getMethodByFunctionID] ExceptionInformation[0] = 0

[ 8.744] [getMethodByFunctionID] ExceptionInformation[1] = 5455

[ 8.752] [getMethodByFunctionID] ExceptionAddress = 7C81BD02
[ 8.752] [getMethodByFunctionID] ExceptionCode = -1073741819
[ 8.752] [getMethodByFunctionID] ExceptionFlags = 16
[ 8.753] [getMethodByFunctionID] ExceptionRecord = 00000000
[ 8.753] [getMethodByFunctionID] NumberParameters = 2
[ 8.753] [getMethodByFunctionID] ExceptionInformation[0] = 0

[ 8.754] [getMethodByFunctionID] ExceptionInformation[1] = 5455

[ 8.761] [getMethodByFunctionID] ExceptionAddress = 7C81BD02
[ 8.761] [getMethodByFunctionID] ExceptionCode = -1073741819
[ 8.762] [getMethodByFunctionID] ExceptionFlags = 16
[ 8.762] [getMethodByFunctionID] ExceptionRecord = 00000000
[ 8.762] [getMethodByFunctionID] NumberParameters = 2
[ 8.763] [getMethodByFunctionID] ExceptionInformation[0] = 0

[ 8.763] [getMethodByFunctionID] ExceptionInformation[1] = 5455

[ 8.771] [getMethodByFunctionID] ExceptionAddress = 7C81BD02
[ 8.771] [getMethodByFunctionID] ExceptionCode = -1073741819
[ 8.771] [getMethodByFunctionID] ExceptionFlags = 16
[ 8.772] [getMethodByFunctionID] ExceptionRecord = 00000000
[ 8.772] [getMethodByFunctionID] NumberParameters = 2
[ 8.772] [getMethodByFunctionID] ExceptionInformation[0] = 0

[ 8.773] [getMethodByFunctionID] ExceptionInformation[1] = 5455

[ 8.780] [getMethodByFunctionID] ExceptionAddress = 7C81BD02
[ 8.781] [getMethodByFunctionID] ExceptionCode = -1073741819
[ 8.781] [getMethodByFunctionID] ExceptionFlags = 16
[ 8.781] [getMethodByFunctionID] ExceptionRecord = 00000000
[ 8.781] [getMethodByFunctionID] NumberParameters = 2
[ 8.782] [getMethodByFunctionID] ExceptionInformation[0] = 0

[ 8.782] [getMethodByFunctionID] ExceptionInformation[1] = 5455

[ 8.790] [getMethodByFunctionID] ExceptionAddress = 7C81BD02
[ 8.790] [getMethodByFunctionID] ExceptionCode = -1073741819
[ 8.791] [getMethodByFunctionID] ExceptionFlags = 16
[ 8.791] [getMethodByFunctionID] ExceptionRecord = 00000000
[ 8.791] [getMethodByFunctionID] NumberParameters = 2
[ 8.791] [getMethodByFunctionID] ExceptionInformation[0] = 0

[ 8.792] [getMethodByFunctionID] ExceptionInformation[1] = 5455

[Vladimir Kondratyev]

Unfortunately we cannot reproduce this problem in our environment. Fix is not impossible without the reproducible test-case. If you have some sample application which reproduces this issue please send it to support(at)yourkit.com.

[Anton Katilin]

Please also try version 5 of the profiler:
http://www.yourkit.com/dotnet/download/

or at least upgrade to the latest 4.5.x series build 4.5.8:
http://www.yourkit.com/dotnet/download/ ... r-.NET.exe