Windows update vs. cygrunsrv

[Pavel Tsekov]

On Wed, 12 Oct 2005, Brian Dessent wrote:

> Eric Blake wrote:
>
> > I don't know it this was unique to my machine, but am
> > reporting it in case anyone else runs into the same
> > issue.  When running Microsoft update today, on Win2k,
> > the patch for Security Update for DirectX 9 for Windows
> > 2000 (KB904706) hung during installation, with an
> > instance of cygrunsrv hogging 100% CPU, until I had
> > stopped every last one of my cygrunsrv processes.  I
> > don't know what the Microsoft update was trying to do
> > to running services during the update, but it obviously
> > didn't interact very well with cygrunsrv.

I've just installed this update too. cygrunsrv was using about 80 %
of the CPU while CSRSS.EXE was using what was left. Here are backtraces
from cygrunsrv and cygserver at the time the hang occured - both look
pretty strange, both indicate that the programs are stuck in NTDLL.DLL.

[cygrunsrv]

(gdb) thread 1
[Switching to thread 1 (thread 700.0x2b8)]#0  0x77f82926 in HT_Get8BPPMaskPalette () from /mnt/c/WINNT/system32/NTDLL.DLL
(gdb) bt
#0  0x77f82926 in HT_Get8BPPMaskPalette () from /mnt/c/WINNT/system32/NTDLL.DLL
#1  0x7c5862e9 in ReadFile () from /mnt/c/WINNT/system32/KERNEL32.DLL
#2  0x000000f0 in ?? ()
#3  0x00000000 in ?? () from

(gdb) thread 2
[Switching to thread 2 (thread 700.0x2c4)]#0  0x77f82926 in HT_Get8BPPMaskPalette () from /mnt/c/WINNT/system32/NTDLL.DLL
(gdb) bt
#0  0x77f82926 in HT_Get8BPPMaskPalette () from /mnt/c/WINNT/system32/NTDLL.DLL
#1  0x7c5862e9 in ReadFile () from /mnt/c/WINNT/system32/KERNEL32.DLL
#2  0x000000e8 in ?? ()
#3  0x00000000 in ?? () from

(gdb) thread 3
[Switching to thread 3 (thread 700.0x2c8)]#0  0x77f8287e in HT_Get8BPPMaskPalette () from /mnt/c/WINNT/system32/NTDLL.DLL
(gdb) bt
#0  0x77f8287e in HT_Get8BPPMaskPalette () from /mnt/c/WINNT/system32/NTDLL.DLL
#1  0x7c59a1af in WaitForMultipleObjectsEx () from /mnt/c/WINNT/system32/KERNEL32.DLL
#2  0x00000001 in ?? ()
#3  0x18bfed58 in ?? ()
#4  0x00000001 in ?? ()
#5  0x00000000 in ?? () from

[Switching to thread 4 (thread 700.0x2f0)]#0  0x77f82926 in HT_Get8BPPMaskPalette () from /mnt/c/WINNT/system32/NTDLL.DLL
(gdb) bt
#0  0x77f82926 in HT_Get8BPPMaskPalette () from /mnt/c/WINNT/system32/NTDLL.DLL
#1  0x7c5862e9 in ReadFile () from /mnt/c/WINNT/system32/KERNEL32.DLL
#2  0x0000012c in ?? ()
#3  0x00000000 in ?? () from

(gdb) thread 5
[Switching to thread 5 (thread 700.0x780)]#0  0x77f813b2 in HT_Get8BPPMaskPalette () from /mnt/c/WINNT/system32/NTDLL.DLL
(gdb) bt
#0  0x77f813b2 in HT_Get8BPPMaskPalette () from /mnt/c/WINNT/system32/NTDLL.DLL
#1  0x7c57fe8f in KERNEL32!DebugActiveProcess () from /mnt/c/WINNT/system32/KERNEL32.DLL
#2  0x7c57fe66 in KERNEL32!DebugActiveProcess () from /mnt/c/WINNT/system32/KERNEL32.DLL
#3  0xffffffff in ?? ()
#4  0x192dffb4 in ?? ()
#5  0x61004055 in _cygtls::call2 (func=0, arg=0x0, buf=0x192deff0) at ../../../../src/winsup/cygwin/cygtls.cc:96
#6  0x00000000 in ?? () from


[cygserver]

Load new symbol table from "/usr/sbin/cygserver.exe"? (y or n) y
Reading symbols from /usr/sbin/cygserver.exe...done.
[Switching to thread 764.0x6fc]
(gdb) bt
#0  0x77f813b2 in RpcSsDontSerializeContext () from /mnt/c/WINNT/system32/NTDLL.DLL
#1  0xffffffff in ?? ()
#2  0x1a7cffb4 in ?? ()
#3  0x61004055 in _cygtls::call2 (func=0, arg=0x0, buf=0x1a7ceff0) at ../../../../src/winsup/cygwin/cygtls.cc:96
#4  0x00000000 in ?? () from
(gdb) thread 2
[Switching to thread 2 (thread 764.0x2e8)]#0  0x77f82926 in RpcSsDontSerializeContext () from /mnt/c/WINNT/system32/NTDLL.DLL
(gdb) bt
#0  0x77f82926 in RpcSsDontSerializeContext () from /mnt/c/WINNT/system32/NTDLL.DLL
#1  0x00000000 in ?? () from
(gdb) thread 3
[Switching to thread 3 (thread 764.0x2f4)]#0  0x77f82870 in RpcSsDontSerializeContext () from /mnt/c/WINNT/system32/NTDLL.DLL
(gdb) bt
#0  0x77f82870 in RpcSsDontSerializeContext () from /mnt/c/WINNT/system32/NTDLL.DLL
#1  0x00000000 in ?? () from
(gdb) thread 4
[Switching to thread 4 (thread 764.0x300)]#0  0x77f82870 in RpcSsDontSerializeContext () from /mnt/c/WINNT/system32/NTDLL.DLL
(gdb) bt
#0  0x77f82870 in RpcSsDontSerializeContext () from /mnt/c/WINNT/system32/NTDLL.DLL
#1  0x00000000 in ?? () from
(gdb) thread 5
[Switching to thread 5 (thread 764.0x304)]#0  0x77f82870 in RpcSsDontSerializeContext () from /mnt/c/WINNT/system32/NTDLL.DLL
(gdb) bt
#0  0x77f82870 in RpcSsDontSerializeContext () from /mnt/c/WINNT/system32/NTDLL.DLL
#1  0x00000000 in ?? () from
(gdb) thread 6
[Switching to thread 6 (thread 764.0x308)]#0  0x77f82870 in RpcSsDontSerializeContext () from /mnt/c/WINNT/system32/NTDLL.DLL
(gdb) bt
#0  0x77f82870 in RpcSsDontSerializeContext () from /mnt/c/WINNT/system32/NTDLL.DLL
#1  0x00000000 in ?? () from
(gdb) thread 6
[Switching to thread 6 (thread 764.0x308)]#0  0x77f82870 in RpcSsDontSerializeContext () from /mnt/c/WINNT/system32/NTDLL.DLL
(gdb) bt
#0  0x77f82870 in RpcSsDontSerializeContext () from /mnt/c/WINNT/system32/NTDLL.DLL
#1  0x00000000 in ?? () from
(gdb) thread 8
[Switching to thread 8 (thread 764.0x310)]#0  0x77f82870 in RpcSsDontSerializeContext () from /mnt/c/WINNT/system32/NTDLL.DLL
(gdb) bt
#0  0x77f82870 in RpcSsDontSerializeContext () from /mnt/c/WINNT/system32/NTDLL.DLL
#1  0x00000000 in ?? () from
(gdb) thread 9
[Switching to thread 9 (thread 764.0x314)]#0  0x77f82870 in RpcSsDontSerializeContext () from /mnt/c/WINNT/system32/NTDLL.DLL
(gdb) bt
#0  0x77f82870 in RpcSsDontSerializeContext () from /mnt/c/WINNT/system32/NTDLL.DLL
#1  0x00000000 in ?? () from
(gdb) thread 10
[Switching to thread 10 (thread 764.0x318)]#0  0x77f82870 in RpcSsDontSerializeContext () from /mnt/c/WINNT/system32/NTDLL.DLL
(gdb) bt
#0  0x77f82870 in RpcSsDontSerializeContext () from /mnt/c/WINNT/system32/NTDLL.DLL
#1  0x00000000 in ?? () from

--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/