IIS hanging in ASP.Net/Component Services

[Jim]

We are experiencing a problem with component services in .Net and IIS. We
use component services to handle transactions against SQL Server. At some
point of usage, IIS will hang up and the lowest level in the stack trace is
at System.Enterpri seServices.Thun k.Proxy.CoCreat eObject and also sometimes
at System.Enterpri seServices.Thun k.Proxy.RevokeO bject. Each thread that
comes in after this gets stuck in the same spot and IIS is hung at that
point and requires us to restart IIS. No exceptions are thrown; the threads
are simply hung up. Looking at SQL Server Enterprise Manager, it does not
look like there is a deadlock in SQL Server so that can be ruled out. Its
almost like COM+ is getting hung up when the objects need created or
remoting communications are blocked.

Here is a partial call stack displaying when it wa stuck at
System.Enterpri seServices.Thun k.Proxy.RevokeO bject:

system.enterpri seservices.thun k.dll!System.En terpriseService s.Thunk.Proxy.R e
vokeObject(int cookie) + 0x80 bytes

system.enterpri seservices.dll! System.Enterpri seServices.Serv icedComponentPr o
xy.CleanupQueue s(bool bGit) + 0x5f bytes

system.enterpri seservices.dll! System.Enterpri seServices.Serv icedComponentPr o
xyAttribute.Cre ateInstance(Sys tem.Type serverType) + 0x3b bytes

mscorlib.dll!Sy stem.Runtime.Re moting.Activati on.ActivationSe rvices.IsCurren t
ContextOK(Syste m.Type serverType, System.Object[] props, bool bNewObj) +
0x4b bytes
When this happens the CPU is not at 100% so this is like a wait state thats
blocking the execution of Component Services methods.

Anyone have any ideas of what's going on?

Thanks,
-Jim

[Boris Partensky]

Hello Jim!
Have you ever found a solution to the IIS hanging problem, which would
produce a following call stack:

at System.Runtime. InteropServices .Marshal.ThrowE xceptionForHR(I nt32
errorCode, IntPtr errorInfo)
at System.Enterpri seServices.Thun k.Proxy.RevokeO bject(Int32 cookie)
at System.Enterpri seServices.Serv icedComponentPr oxy.CleanupQueu es(Boolean
bGit)
at System.Enterpri seServices.Serv icedComponentPr oxyAttribute.Cr eateInstance(Ty pe
serverType)
at System.Runtime. Remoting.Activa tion.Activation Services.IsCurr entContextOK(Ty pe
serverType, Object[] props, Boolean bNewObj)
We encountered a similar issue, same call stack, which is very hard to
reproduce. The only difference is that in our case IIS does not hang.
ASP
Page pukes with E_ENVALIDARG with "parameter is incorrect" message.
Please let me know.

Boris

[Dev]

Boris,

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Get ReJuvin8 at: http://www.rejuvin8.net?ac=ch1
"Boris Partensky" <bo***@metratec h.com> wrote in message
news:e0******** *************** ***@posting.goo gle.com...

Hello Jim!
Have you ever found a solution to the IIS hanging problem, which would
produce a following call stack:

at System.Runtime. InteropServices .Marshal.ThrowE xceptionForHR(I nt32
errorCode, IntPtr errorInfo)
at System.Enterpri seServices.Thun k.Proxy.RevokeO bject(Int32 cookie)
at System.Enterpri seServices.Serv icedComponentPr oxy.CleanupQueu es(Boolean bGit)
at System.Enterpri seServices.Serv icedComponentPr oxyAttribute.Cr eateInstance(Ty p
e serverType)
at System.Runtime. Remoting.Activa tion.Activation Services.IsCurr entContextOK(Ty p
e serverType, Object[] props, Boolean bNewObj)
We encountered a similar issue, same call stack, which is very hard to
reproduce. The only difference is that in our case IIS does not hang.
ASP
Page pukes with E_ENVALIDARG with "parameter is incorrect" message.
Please let me know.

Boris