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echo: nthelp
to: All
from: Hrvoje Mesing
date: 2006-07-08 19:22:16
subject: svchost.exe + networking.

From: "Hrvoje Mesing" 


Ok,

computer (WinXP SP2, fully patched and Clean) started. Opened about ~200
Internet Explorers with various web pages > mostly www.microsoft.com.

svchost that hosts these services:

6to4, AudioSrv, BITS, Browser, CryptSvc,dmserver, ERSvc, EventSystem,
helpsvc, lanmanserver, lanmanworkstation, Netman, Nla, RasAuto, RasMan,
Schedule, seclogon, SENS, SharedAccess, ShellHWDetection, srservice,
TapiSrv, Themes, W32Time, winmgmt, wscsvc, wuauserv

.. had ~5500 handles opened.

Ok, one more IE opened, it couldnt connect to the internet. Ok, then opened
windows explorer and tried to connect to network share > not enough
system resources to complete the task (?). Ok, all of the IE_s closed.
svchost handles count dropped to ~4700.

Still cannot establish connection.
Restarted all of the services in that svchost (that I could, because you
cannot restart seclogon) > still no joy.

Ok, then rebooted the computer, svchost handles count on boot was ~1700.

Ok, did the same thing with IE_s and same thing happened.

Anyone saw similar ? Anyone ever tried programatically kill
"unused" handles
?
Did not find anywhere that this was reported as a bug.

Maybe this is overall Windows bug ?! :)))))

P.S. I tought that there could be "staled" network connections
and that windows is looping somewhere, but all of the connections were
eiped out + checking overall processes on computer - found nothing strange.

tnx,


-+-
M.

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