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Windows Forum / Windows XP / General Topics 1 / August 2008Random Reboots; Minidump says kmixer
We purchased 8 identical XP workstations around August last year and deployed them in September through November last year. Each machine is running identical software. We had 2 reboots in September, one in November, and 2 in February, on different machines. Then on June 12 we started having frequent random reboots. They seem hardware rather than software related because the machine doesn't log anything going down, only coming back up. The two error messages we are getting are: Error code 8086 with all parameters 0s or error code 100000d1 with parameters 28, 2, 0 and f7b51be7. Each minidump always refers to kmixer.sys. We are only using on-board audio. We have reseated the memory and cleaned the cpu heat sink. We have deployed SP3 (seemed to make things worse, but still random) and then updated drivers related to video and audio, although most were already the latest available. We also updated the BIOS. The reboots continue. These are very critical machines. We have had 13 reboots now in just over two months. Any ideas on what we should try next?  SignatureLaughter is the best medicine > We purchased 8 identical XP workstations around August last year and deployed > them in September through November last year. Each machine is running [quoted text clipped - 13 lines] > machines. We have had 13 reboots now in just over two months. Any ideas on > what we should try next? I googled kmixer.sys and found several recent references to malware. I used the command prompt to see how many bytes kmixer.sys contained. 172,416 for Windows XP SP3. Use the command prompt to compare the sizes. Type the following commands at the prompt and then <enter> cd is short for change directory and dir is short for show directory. C:\Documents and Settings\Username>cd C:\windows\system32\drivers enter Then at C:\windows\system32\drivers>dir <enter> There aren't that many files so you can scroll up to kmixer.sys and see if the size of the files match up, mine and yours. Also if you are use XP Home I don't know for sure if the size of the kmixer.sys files are the same as on the Pro version. You could check the file size of kmixer.pro on all 8 machines and compare them. I don't think windows explorer reports file sizes in the exact standard. Stephen: Actually, 5 of the 8 XP Pro PCs are at SP2, and three have been upgraded to SP3 in the process of troubleshooting this issue. The ones at SP3 are rebooting more frequently than the others, although it is still random. The three at SP3 match your file size, and the rest are all the appropriate file size for SP2 (171,776). SignatureLaughter is the best medicine > > We purchased 8 identical XP workstations around August last year and deployed > > them in September through November last year. Each machine is running [quoted text clipped - 32 lines] > check the file size of kmixer.pro on all 8 machines and compare them. > I don't think windows explorer reports file sizes in the exact standard. > We purchased 8 identical XP workstations around August last year and deployed > them in September through November last year. Each machine is running [quoted text clipped - 13 lines] > machines. We have had 13 reboots now in just over two months. Any ideas on > what we should try next? This may turn out to be useful: http://www.microsoft.com/downloads/details.aspx?FamilyId=8C2E44A5-6A28-4888-93A7 -6A6C6A87BE7F&displaylang=en Overview This is a reliability update for Windows XP machines. Install this audio component update to prevent memory corruption issues which may cause an unstable state on a computer that is running Windows XP Service Pack 2. After you install this item, you may have to restart your computer. Kmixer.sys 5.1.2600.2929 172,416 14-Jun-2006 08:50 x86 SP2 SP2QFE Splitter.sys 5.1.2600.2929 6,272 14-Jun-2006 08:50 x86 SP2 SP2QFE Wdmaud.sys 5.1.2600.2929 82,944 14-Jun-2006 09:17 x86 SP2 SP2QFE Stephen: This article is actually why we applied SP3 to the 3 PCs that were rebooting most often. So we are at a revision of these files higher than shown in this article. Do you know if SP3 can be uninstalled? I've considered rolling it back and just applying this patch. SignatureLaughter is the best medicine > > We purchased 8 identical XP workstations around August last year and deployed > > them in September through November last year. Each machine is running [quoted text clipped - 29 lines] > > Wdmaud.sys 5.1.2600.2929 82,944 14-Jun-2006 09:17 x86 SP2 SP2QFE Hello, I would firstly suggest that you contact the device (audio device, specifically) manufacturers to see if the device or device drivers can work well with Windows XP, or if there are any known issues (or updates) on the specific device or drivers. I saw that you had updated the driver, however, I would still suggest that you contact the manufacturers for detailed information. Saying this is because, based on some research, I found this problem (error code 100000d1 and kmixer.sys) might be caused by the incompatible device or driver, or some driver problems (bugs), and usually could be resolved by updating the driver. If you are not sure about this, I would highly suggest that you contact our Microsoft Customer Service and Support (CSS) to find out the root cause. You can speak directly with a Microsoft Support Professional to analyze the crash dump. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, please go to the following address on the World Wide Web: http://support.microsoft.com/directory/overview.asp Additionally, if you want to remove Windows XP SP3, you can try the following KB article: How to remove Windows XP Service Pack 3 from your computer: http://support.microsoft.com/kb/950249 Good luck. Sincerely, George Yin Microsoft Online Support Microsoft Global Technical Support Center Get Secure! - www.microsoft.com/security ===================================================== When responding to posts, please "Reply to Group" via your newsreader so that others may learn and benefit from your issue. ===================================================== This posting is provided "AS IS" with no warranties, and confers no rights. =?Utf-8?B?TWFybGE=?= wrote: > We also updated the BIOS. The reboots continue. These are very critical > machines. We have had 13 reboots now in just over two months. Any ideas on Which means you are using genuine Windows OS Software with proper licenses :) Absolutely. SignatureLaughter is the best medicine > =?Utf-8?B?TWFybGE=?= wrote: > > [quoted text clipped - 3 lines] > Which means you are using genuine Windows OS Software with proper > licenses :) |
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