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Message-ID:	<445093E7.809@linbox.com>
Date:	Thu, 27 Apr 2006 11:50:31 +0200
From:	Ludovic Drolez <ludovic DOT drolez AT linbox DOT com>
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To:	cygwin AT cygwin DOT com
Subject:	cygrunsrv and windows update problem on W2K SP4
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Hello,

A few months ago someone reported (subj=Windows update vs. cygrunsrv) that
windows update and cygrunsrv fails when trying to update multimedia programs on
windows (MP, iTunes, etc). cygrunsrv uses nearly all cpu.

With cygrunsrv 1.15-1 and cygwin 1.5.19-4, I still have the problem.
A workaround seems to stop the ssh server but I cannot do this since we use it
for remote admin of windows boxes.

Below you'll find the state of 'cygrunsrv' when it hangs using gdb.

What can I do to get more traces ? Compile cygrunsrv with debugging symbols ?
(I really need to fix this problem, so please tell me how to help...)

Cheers,

   Ludovic.

============= gdb session on cygrunsrv ============
(gdb) thread 1
[Switching to thread 1 (thread 648.0x284)]#0  0x78468a87 in ntdll!ZwReadFile
    () from /cygdrive/c/WINNT/system32/NTDLL.DLL
(gdb) bt
#0  0x78468a87 in ntdll!ZwReadFile ()
   from /cygdrive/c/WINNT/system32/NTDLL.DLL
#1  0x77e86335 in ReadFile () from /cygdrive/c/WINNT/system32/KERNEL32.DLL
#2  0x78edd578 in StartServiceW ()
   from /cygdrive/c/WINNT/system32/ADVAPI32.DLL
#3  0x000000e4 in ?? ()
#4  0x0022eb0c in ?? ()
#5  0x00000216 in ?? ()
#6  0x0022ea6c in ?? ()
#7  0x00000000 in ?? () from
(gdb) thread 2
[Switching to thread 2 (thread 648.0x28c)]#0  0x78468a87 in ntdll!ZwReadFile
    () from /cygdrive/c/WINNT/system32/NTDLL.DLL
(gdb) bt
#0  0x78468a87 in ntdll!ZwReadFile ()
   from /cygdrive/c/WINNT/system32/NTDLL.DLL
#1  0x77e86335 in ReadFile () from /cygdrive/c/WINNT/system32/KERNEL32.DLL
#2  0x61094182 in wait_sig () from /usr/bin/cygwin1.dll
#3  0x61002f12 in cygthread::callfunc () from /usr/bin/cygwin1.dll
#4  0x61003749 in cygthread::stub () from /usr/bin/cygwin1.dll
#5  0x00000f9c in ?? ()
#6  0x00000000 in ?? () from
(gdb) thread 3
[Switching to thread 3 (thread 648.0x290)]#0  0x78468f03 in ntdll!ZwWaitForMulti
             pleObjects () from /cygdrive/c/WINNT/system32/NTDLL.DLL
(gdb) bt
#0  0x78468f03 in ntdll!ZwWaitForMultipleObjects ()
   from /cygdrive/c/WINNT/system32/NTDLL.DLL
#1  0x77e9a1fb in WaitForMultipleObjectsEx ()
   from /cygdrive/c/WINNT/system32/KERNEL32.DLL
#2  0x77e9a10e in WaitForMultipleObjects ()
   from /cygdrive/c/WINNT/system32/KERNEL32.DLL
#3  0x18bdec48 in ?? ()
#4  0x00000001 in ?? ()
#5  0x00000000 in ?? () from
(gdb) thread 4
[Switching to thread 4 (thread 648.0x2a4)]#0  0x78468a87 in ntdll!ZwReadFile
    () from /cygdrive/c/WINNT/system32/NTDLL.DLL
(gdb) bt
#0  0x78468a87 in ntdll!ZwReadFile ()
   from /cygdrive/c/WINNT/system32/NTDLL.DLL
#1  0x77e86335 in ReadFile () from /cygdrive/c/WINNT/system32/KERNEL32.DLL
#2  0x6106f2e9 in proc_waiter () from /usr/bin/cygwin1.dll
#3  0x61002f12 in cygthread::callfunc () from /usr/bin/cygwin1.dll
#4  0x61003749 in cygthread::stub () from /usr/bin/cygwin1.dll
#5  0x00000000 in ?? () from
(gdb) thread 5
[Switching to thread 5 (thread 648.0x6b8)]#0  0x7847193d in ntdll!DbgUiConnectTo
             Dbg () from /cygdrive/c/WINNT/system32/NTDLL.DLL
(gdb) bt
#0  0x7847193d in ntdll!DbgUiConnectToDbg ()
   from /cygdrive/c/WINNT/system32/NTDLL.DLL
#1  0x77e7fe8d in KERNEL32!DebugActiveProcess ()
   from /cygdrive/c/WINNT/system32/KERNEL32.DLL
#2  0x61004409 in _cygtls::call2 () from /usr/bin/cygwin1.dll
#3  0x00000000 in ?? () from








===================================================


-- 
Ludovic DROLEZ                              Linbox / Free&ALter Soft
www.linbox.com www.linbox.org

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