problems between nvidia nvmixer (from 4.27 nforce drivers) cygwin sshd cygrunsrv & even bash, all in Windows 2000

Problem report. There are interaction problems between the Nvidia
nvmixer (from 4.27 nforce drivers) & Openssh sshd.exe as run in Cygwin
as a service, and also between the mixer and a plain old bash shell
window of Cygwin, all under Windows 2000.

Details of problems - how to duplicate:

1. Have openssh sshd.exe installed as a service in cygwin, or have a
bash windows open in cygwin.

2. Install the latest Nvidia nforce 4.27 drivers, including the audio mixer.

3. Run nvmixer.exe.

4. Notice how in task manager the cygrunsrv.exe is all of a sudden
hogging up cpu time.

5. In task manager manually close cygrunsrv.exe.

6. Notice how nvmixer.exe just crashed.

7. Run nvmixer.exe manually.

8. It won't maximize.

9. Look in task manager. Now sshd.exe is taking up a lot of cpu time.

10. Stop sshd.exe in task manager.

11. Nvmiver.exe crashes again.

12. Now that sshd.exe and cygrunsrv.exe are not in task manager try
running nvmixer.exe again.

13. This time nvmixer.exe starts up just fine and it will maximize.

14. Notice how that when nvmixer is maximized it's possible to restart
cygwin's sshd.exe and have it work.

If nvmixer not open but still in the tray, and if sshd.exe and cygrunsrv
are running, then nvmixer won't maximize, and either cygrunsrv or sshd
will take up a lot of cpu time (for when nvmixer is trying to be
accessed). If either cygrunsrv or sshd are killed, and if nvmixer is
running in the tray, it will crash. However once both cygrunsrv and sshd
are closed, then nvmixer will run ok.

15. With sshd and cygrunsrv closed, open up a bash window in cygwin
(double click on the cygwin icon on your desktop).

16. With the bash window open, now try & run nvmixer again. You get the
same result as with sshd and cygrunsrv.

17. Notice how bash is now sucking up a lot of cpu time after you tried
to run nvmixer.

18. Close bash using task manager.

19. Now nvmixer crashes again.

20. With bash of cygwin closed now try nvmixer again. It now works ok &
will open.

Conclusion: Several processes of cygwin (bash, sshd, cygrunsrv) start
taking up a lot of cpu time if nvmixer.exe is run at all. Once nvmixer
is running, if we close any cygwin process, then nvmixer crashes. Once
all cygwin stuff is closed then nvmixer will run.

-------------------

Here's a part of the log for one of the nvmixer.exe crashes:

Application exception occurred:
App: (pid=1448)
When: 11/25/2004 @ 10:04:37.015
Exception number: c0000005 (access violation)

*----> System Information <----*
Computer Name: CL
User Name: vu
Number of Processors: 1
Processor Type: x86 Family 6 Model 10 Stepping 0
Windows 2000 Version: 5.0
Current Build: 2195
Service Pack: 3
Current Type: Uniprocessor Free
Registered Organization: .
Registered Owner: .

*----> Task List <----*
0 Idle.exe
8 System.exe
224 SMSS.exe
248 CSRSS.exe
268 WINLOGON.exe
296 SERVICES.exe
308 LSASS.exe
440 Smc.exe
492 svchost.exe
532 spoolsv.exe
580 svchost.exe
596 GEARSEC.exe
624 NAVAPSVC.exe
700 nvsvc32.exe
752 regsvc.exe
764 r_server.exe
812 mstask.exe
928 ULCDRSvr.exe
956 vmware-authd.ex.exe
996 vmnat.exe
1016 WinGate.exe
1064 WinMgmt.exe
1088 Winrun.exe
1156 MsPMSPSv.exe
1180 svchost.exe
1332 vmnetdhcp.exe
1344 explorer.exe
888 NAVAPW32.exe
1500 NvMixerTray.exe
1524 acrotray.exe
1564 boinc_gui.exe
1608 wgengmon.exe
1628 wgvpnmon.exe
1648 BCResident.exe
1484 hadsm3_4.04_win.exe
512 DLLHOST.exe
1532 hadsm3um_4.04_w.exe
940 sshd.exe
1448 NvMixer.exe
1028 mshta.exe
1672 regedit.exe
1556 IEXPLORE.exe
1696 taskmgr.exe
1324 DRWTSN32.exe
0 _Total.exe

(00400000 - 0055C000)
(77F80000 - 77FFB000)
(77570000 - 775A0000)
(77E10000 - 77E6F000)
(77E80000 - 77F36000)
(77F40000 - 77F79000)
(77DB0000 - 77E0D000)
(77D30000 - 77DA1000)
(00230000 - 00358000)
(00360000 - 00365000)
(78000000 - 78046000)
(77820000 - 77827000)
(759B0000 - 759B6000)
(782F0000 - 78534000)
(70A70000 - 70AD4000)
(71710000 - 71794000)
(77A50000 - 77B45000)
(779B0000 - 77A4B000)
(6B2C0000 - 6B2C5000)
(75E60000 - 75E7A000)
(6CA60000 - 6CA68000)
(66650000 - 666A4000)
(10000000 - 1000D000)

State Dump for Thread Id 0x570

eax=00000000 ebx=00000000 ecx=00000008 edx=00000000 esi=00000000
edi=00000034
eip=77ebc3d0 esp=0012f834 ebp=0012f894 iopl=0 nv up ei pl nz na
pe nc
cs=001b ss=0023 ds=0023 es=0023 fs=0038 gs=0000
efl=00000202

function: Module32Next
77ebc3b6 8945e8 mov [ebp+0xe8],eax
ss:00c4ce66=????????
77ebc3b9 7407 jz
QueryInformationJobObject+0x62 (77ec4ec2)
77ebc3bb 8bc3 mov eax,ebx
77ebc3bd 6bc01c imul eax,eax,0x1c
77ebc3c0 03f8 add edi,eax
77ebc3c2 8b4d0c mov ecx,[ebp+0xc]
ss:00c4ce66=????????
77ebc3c5 f6c108 test cl,0x8
77ebc3c8 7415 jz
QueryInformationJobObject+0x7f (77ec4edf)
77ebc3ca 8b4518 mov eax,[ebp+0x18]
ss:00c4ce66=????????
77ebc3cd 8b4030 mov eax,[eax+0x30]
ds:00b1d5d2=????????
FAULT ->77ebc3d0 8b00 mov eax,[eax]
ds:00000000=????????
77ebc3d2 8bd0 mov edx,eax
77ebc3d4 8945ec mov [ebp+0xec],eax
ss:00c4ce66=????????
77ebc3d7 69d228040000 imul edx,edx,0x428
77ebc3dd 03fa add edi,edx
77ebc3df 6a01 push 0x1
77ebc3e1 894df4 mov [ebp+0xf4],ecx
ss:00c4ce66=????????
77ebc3e4 59 pop ecx
77ebc3e5 214df4 and [ebp+0xf4],ecx
ss:00c4ce66=????????
77ebc3e8 7412 jz
QueryInformationJobObject+0x9c (77ec4efc)
77ebc3ea 8b451c mov eax,[ebp+0x1c]
ss:00c4ce66=????????
77ebc3ed 8b4038 mov eax,[eax+0x38]
ds:00b1d5d2=????????

*----> Stack Back Trace <----*

FramePtr ReturnAd Param#1 Param#2 Param#3 Param#4 Function Name
0012F894 77EBB6B6 0012F8D0 00000008 000004B8 00000000 kernel32!Module32Next
0012F8C4 004137F4 00000008 000004B8 0012FD48 00000088
kernel32!CreateToolhelp32Snapshot
0012FB08 004138CC 000004B8 0012FB24 00000224 00000000 !<nosymbols>
0012FE74 00416194 0045D2B4 77E87D93 00000000 7FFDF000 !<nosymbols>
0012FE98 0044EC64 00400000 00000000 00133AA0 00000001 !<nosymbols>
0012FFC0 77E9CA90 77F82B95 0012CBB0 7FFDF000 C0000005 !<nosymbols>
0012FFF0 00000000 0044EAE3 00000000 000000C8 00000100
kernel32!CreateProcessW

*----> Raw Stack Dump <----*
0012f834 04 fb 12 00 b8 04 00 00 - 00 00 00 00 00 00 00 00
................
0012f844 00 00 ed 00 90 00 00 00 - 98 f8 12 00 9d c2 eb 77
...............w
0012f854 b8 04 00 00 01 00 00 00 - 94 00 00 00 04 fb 12 00
................
0012f864 b8 04 00 00 00 00 00 00 - 00 00 00 00 20 f9 12 00
............ ...
0012f874 00 00 01 00 01 00 00 00 - 00 00 00 00 00 00 00 00
................
0012f884 00 00 00 00 b0 ff 12 00 - 00 00 00 00 00 00 00 00
................
0012f894 c4 f8 12 00 b6 b6 eb 77 - d0 f8 12 00 08 00 00 00
.......w........
0012f8a4 b8 04 00 00 00 00 00 00 - 00 00 ef 00 00 00 00 00
................
0012f8b4 88 00 00 00 00 00 00 00 - 00 00 ef 00 00 00 00 00
................
0012f8c4 08 fb 12 00 f4 37 41 00 - 08 00 00 00 b8 04 00 00
.....7A.........
0012f8d4 48 fd 12 00 88 00 00 00 - a0 3a 13 00 00 00 00 00
H........:......
0012f8e4 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
................
0012f8f4 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
................
0012f904 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
................
0012f914 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
................
0012f924 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
................
0012f934 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
................
0012f944 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
................
0012f954 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
................
0012f964 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
................

Application exception occurred:
App: (pid=1660)
When: 11/25/2004 @ 10:17:12.078
Exception number: c0000005 (access violation)

*----> System Information <----*
Computer Name: CL
User Name: vu
Number of Processors: 1
Processor Type: x86 Family 6 Model 10 Stepping 0
Windows 2000 Version: 5.0
Current Build: 2195
Service Pack: 3
Current Type: Uniprocessor Free
Registered Organization: .
Registered Owner: .

*----> Task List <----*
0 Idle.exe
8 System.exe
224 SMSS.exe
248 CSRSS.exe
268 WINLOGON.exe
296 SERVICES.exe
308 LSASS.exe
440 Smc.exe
492 svchost.exe
532 spoolsv.exe
580 svchost.exe
596 GEARSEC.exe
624 NAVAPSVC.exe
700 nvsvc32.exe
752 regsvc.exe
764 r_server.exe
812 mstask.exe
928 ULCDRSvr.exe
956 vmware-authd.ex.exe
996 vmnat.exe
1016 WinGate.exe
1064 WinMgmt.exe
1088 Winrun.exe
1156 MsPMSPSv.exe
1180 svchost.exe
1332 vmnetdhcp.exe
1344 explorer.exe
888 NAVAPW32.exe
1500 NvMixerTray.exe
1524 acrotray.exe
1564 boinc_gui.exe
1608 wgengmon.exe
1628 wgvpnmon.exe
1648 BCResident.exe
1484 hadsm3_4.04_win.exe
512 DLLHOST.exe
1532 hadsm3um_4.04_w.exe
376 IEXPLORE.exe
1720 mmc.exe
1164 sshd.exe
1320 CMD.exe
1660 NvMixer.exe
968 taskmgr.exe
868 notepad.exe
960 DRWTSN32.exe
0 _Total.exe

(00400000 - 0055C000)
(77F80000 - 77FFB000)
(77570000 - 775A0000)
(77E10000 - 77E6F000)
(77E80000 - 77F36000)
(77F40000 - 77F79000)
(77DB0000 - 77E0D000)
(77D30000 - 77DA1000)
(00230000 - 00358000)
(00360000 - 00365000)
(78000000 - 78046000)
(77820000 - 77827000)
(759B0000 - 759B6000)
(782F0000 - 78534000)
(70A70000 - 70AD4000)
(71710000 - 71794000)
(77A50000 - 77B45000)
(779B0000 - 77A4B000)
(6B2C0000 - 6B2C5000)
(75E60000 - 75E7A000)
(6CA60000 - 6CA68000)
(66650000 - 666A4000)
(10000000 - 1000D000)

State Dump for Thread Id 0x394

eax=00000000 ebx=00000000 ecx=00000008 edx=00000000 esi=00000000
edi=00000034
eip=77ebc3d0 esp=0012f834 ebp=0012f894 iopl=0 nv up ei pl nz na
pe nc
cs=001b ss=0023 ds=0023 es=0023 fs=0038 gs=0000
efl=00000202

function: Module32Next
77ebc3b6 8945e8 mov [ebp+0xe8],eax
ss:00c4ce66=????????
77ebc3b9 7407 jz
QueryInformationJobObject+0x62 (77ec4ec2)
77ebc3bb 8bc3 mov eax,ebx
77ebc3bd 6bc01c imul eax,eax,0x1c
77ebc3c0 03f8 add edi,eax
77ebc3c2 8b4d0c mov ecx,[ebp+0xc]
ss:00c4ce66=????????
77ebc3c5 f6c108 test cl,0x8
77ebc3c8 7415 jz
QueryInformationJobObject+0x7f (77ec4edf)
77ebc3ca 8b4518 mov eax,[ebp+0x18]
ss:00c4ce66=????????
77ebc3cd 8b4030 mov eax,[eax+0x30]
ds:00b1d5d2=????????
FAULT ->77ebc3d0 8b00 mov eax,[eax]
ds:00000000=????????
77ebc3d2 8bd0 mov edx,eax
77ebc3d4 8945ec mov [ebp+0xec],eax
ss:00c4ce66=????????
77ebc3d7 69d228040000 imul edx,edx,0x428
77ebc3dd 03fa add edi,edx
77ebc3df 6a01 push 0x1
77ebc3e1 894df4 mov [ebp+0xf4],ecx
ss:00c4ce66=????????
77ebc3e4 59 pop ecx
77ebc3e5 214df4 and [ebp+0xf4],ecx
ss:00c4ce66=????????
77ebc3e8 7412 jz
QueryInformationJobObject+0x9c (77ec4efc)
77ebc3ea 8b451c mov eax,[ebp+0x1c]
ss:00c4ce66=????????
77ebc3ed 8b4038 mov eax,[eax+0x38]
ds:00b1d5d2=????????

*----> Stack Back Trace <----*

FramePtr ReturnAd Param#1 Param#2 Param#3 Param#4 Function Name
0012F894 77EBB6B6 0012F8D0 00000008 00000614 00000000 kernel32!Module32Next
0012F8C4 004137F4 00000008 00000614 0012FD48 00000088
kernel32!CreateToolhelp32Snapshot
0012FB08 004138CC 00000614 0012FB24 00000224 00000000 !<nosymbols>
0012FE74 00416194 0045D2B4 77E87D93 00000000 7FFDF000 !<nosymbols>
0012FE98 0044EC64 00400000 00000000 00133A20 00000001 !<nosymbols>
0012FFC0 77E9CA90 00000000 00000000 7FFDF000 C0000005 !<nosymbols>
0012FFF0 00000000 0044EAE3 00000000 000000C8 00000100
kernel32!CreateProcessW

*----> Raw Stack Dump <----*
0012f834 04 fb 12 00 14 06 00 00 - 00 00 00 00 00 00 00 00
................
0012f844 00 00 cd 00 8c 00 00 00 - 98 f8 12 00 9d c2 eb 77
...............w
0012f854 14 06 00 00 01 00 00 00 - 94 00 00 00 04 fb 12 00
................
0012f864 14 06 00 00 00 00 00 00 - 00 00 00 00 20 f9 12 00
............ ...
0012f874 00 00 01 00 01 00 00 00 - 00 00 00 00 00 00 00 00
................
0012f884 00 00 00 00 b0 ff 12 00 - 00 00 00 00 00 00 00 00
................
0012f894 c4 f8 12 00 b6 b6 eb 77 - d0 f8 12 00 08 00 00 00
.......w........
0012f8a4 14 06 00 00 00 00 00 00 - 00 00 ef 00 00 00 00 00
................
0012f8b4 88 00 00 00 00 00 00 00 - 00 00 ef 00 00 00 00 00
................
0012f8c4 08 fb 12 00 f4 37 41 00 - 08 00 00 00 14 06 00 00
.....7A.........
0012f8d4 48 fd 12 00 88 00 00 00 - 20 3a 13 00 00 00 00 00 H.......
:......
0012f8e4 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
................
0012f8f4 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
................
0012f904 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
................
0012f914 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
................
0012f924 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
................
0012f934 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
................
0012f944 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
................
0012f954 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
................
0012f964 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
................