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Re: Windows update vs. cygrunsrv



Updating cygwin seemd to fix it, a client just called and indicated that her computer was "slow".


On Thu, 13 Oct 2005, Pavel Tsekov wrote:

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

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