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Old 12-08-05, 01:17 PM   #1
shahms
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Default AMD64 Geforce 6600 8174 instability (continues...)

I was having some stability issues with the 7676 drivers on a 2.6.14-1.1644_FC4 kernel (obviously on FC4) with my GeForce 6600 and hoping that the 8174 drivers would fix the problem. It didn't fix them, but did change the backtrace. The problems may be unrelated, but since both dumps involve unmapping/remapping memory, I'm inclined to think they are related. Attached are the two kernel dumps from those crashes as well as an older dump that is also likely related. The only difference between the first two is the NVidia driver version, the third dump I suspect is with a different kernel, but my logs were rotated so I'm not sure which one. Additionally, I get strange behavior when changing resolutions or starting X. Namely, the screen will frequently be black (though running as the monitor doesn't go into standby). This happens only on the primary display (the second head is a television and I haven't noticed any problems there). It happens randomly, but often enough to cause me headaches. Cycling resolutions (Ctl+Alt+KP_Plus) or changing to a text terminal and back will (eventually) fix the problem.
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Old 12-08-05, 02:01 PM   #2
zander
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Default Re: AMD64 Geforce 6600 8174 instability (continues...)

Does this happen with vanilla Linux 2.6.14?
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Old 12-08-05, 02:25 PM   #3
netllama
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Default Re: AMD64 Geforce 6600 8174 instability (continues...)

I'm able to reproduce this problem with the recent FC4 kernels. We'll look at this in greater depth and see if we can determine whether this is a kernel bug or a driver bug.

Thanks,
Lonni
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Old 12-09-05, 10:56 AM   #4
shahms
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Default Re: AMD64 Geforce 6600 8174 instability (continues...)

Thanks for the quick response. I just hope this turns out to be a kernel bug or at least a bug in the non-closed portion of the driver as the BUG() happens every time I exit a 3D application and I don't want to wait for the next driver release...
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Old 12-09-05, 03:03 PM   #5
netllama
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Default Re: AMD64 Geforce 6600 8174 instability (continues...)

shahms,
After looking at this in more depth, the problem that I am seeing is not the same as what you had originally reported. The issue I'm seeing was a kernel panic.

Can you generate a bug report against 1.0-8174 (while the problem is present), along with this additional information:
0) What kind of motherboard are you using?
1) What are the steps required to reproduce this?
2) Anything unusual about your system/setup that might be relevant to triggering/reproducing this problem

Thanks,
Lonni
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Old 12-09-05, 04:33 PM   #6
shahms
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Default Re: AMD64 Geforce 6600 8174 instability (continues...)

I will see what I can do about generating the report when I get home from work. Although, I don't know where to get 1.0-8168 from; I only have 8174 and 7676 and all mentions of 8168 seem to indicate it was an accidentally leaked beta.

0) The motherboard is from Shuttle, model SN95G5 (I'll have to check whether it's V2 or V3 at home).
1) The steps required to produce the bug are: start World of Warcraft, exit World of Warcraft.
2) I can't think of anything unusual, exactly. It's a small-form-factor PC, dual-head with the second monitor as a TV in multi-screen (not TwinView or Xinerama) mode. x86_64, 2G of RAM.
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Old 12-09-05, 06:12 PM   #7
netllama
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Default Re: AMD64 Geforce 6600 8174 instability (continues...)

Sorry, my mention of 1.0-8168 was a typo. I meant 1.0-8174.

Are you running WoW inside of Cedega? If so, which version?

Please make sure that you're using the latest BIOS for the SN95G5? I see that a new BIOS was posted about a month ago for both V2 and V3.

Thanks,
Lonni
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Old 12-09-05, 06:49 PM   #8
shahms
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Default Re: AMD64 Geforce 6600 8174 instability (continues...)

Yes, using Cedega 5.0.2 (although the problem happens with 5.0 and 5.0.1 as well as native Doom 3).

The nvidia-bugreport is attached. Seeing as I have to reboot now, I will try to upgrade the BIOS and see if the problem persists.
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File Type: zip nvidia-bug-report.log.zip (22.4 KB, 119 views)
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Old 12-09-05, 07:01 PM   #9
netllama
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Default Re: AMD64 Geforce 6600 8174 instability (continues...)

Thanks, I have a few more questions:
Are you playing the games on the DFP or TV?
If the TV is not connected, and you're using a single X screen on the DFP, does this still reproduce?
Are you playing the games full screen, or in a window?
Also, can you verify that the kernel output is the same each time this happens, and post that output again?
The trace in your bug report is coming from wine, but you stated this crash also happens with Doom3. If you perform a fresh boot and do not start anything using wine, does this still reproduce?

Thanks,
Lonni
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Old 12-09-05, 08:18 PM   #10
shahms
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Default Re: AMD64 Geforce 6600 8174 instability (continues...)

Games are being played fullscreen on the DFP. Attached is the relevant output from dmesg after starting -> exiting WoW after unplugging the TV and commenting out those sections from the config file.

I'm pretty sure the kernel output is identical mod changes in the address where wine is loaded and PID.

I was unable to get it to crash with Doom 3, but I didn't try very hard. I will reboot and try again.
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File Type: txt no-tv-out-dump.txt (2.4 KB, 111 views)
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Old 12-09-05, 08:42 PM   #11
shahms
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Default Re: AMD64 Geforce 6600 8174 instability (continues...)

Okay, so I couldn't get it to happen when playing Doom 3 both with and without the TV-Out and a reboot inbetween. I'm pretty sure the time I saw it playing Doom was after WoW which must have caused it.

And, I just realized that my monitor is a SGI 1600SX with a 1600x1024 native resolution. This driver did manage to get that to work right with no custom modeline, however, so even with the crashes this release is an improvement over the previous one :-)
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Old 12-11-05, 01:38 PM   #12
netllama
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Default Re: AMD64 Geforce 6600 8174 instability (continues...)

After some additional investigation, zander has reproduced this problem and opened bug 202278.

Thanks,
Lonni
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