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Tag Archives: ntdebug

Cannot launch more than 50+ java.exe processes due to desktop heap

The other day, the application team came to me to diagnosis an old issue with their application. Its application that launches java programs, each spawning a java.exe process. They found that after spawning 50+ processes, the next attempt will error with “Not enough storage is available to complete this operation.”

Now if you do a search on google, the first thing that you will find is a description of IRPStackSize registry key. However, what is odd about this problem is that the eventlog is clean. There are no events related to IRPStackSize issues. Snce most articles regarding “not enough storage” points to IRPStackSize, I decided to make the changes to the server and see if it helps. However, even after setting the value up to 30, there was hardly any improvements in the number of additional java.exe processes that can be spawned. So this eliminates the IRPStack issue. Read the rest of this entry »

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Posted by on November 27, 2010 in Windows

 

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Windows 2003 servers with STOP 0xA (x,D2,x,x) after applying MS09-059

After our recent round of Microsoft patches, we are seeing an usually high number of servers BSODing with STOP 0A errors with no conclusive resolution.

At the same time, we are seeing server crashing with 0A or C5 error when Symantec antivirus is running its schedules scans. I did a sav debug on those servers and did not identify any particular reason for the crashes. At first I thought the crash was caused by SAV while scanning application files, but it wasn’t. [MS confirmed this is a different issue]

MS confirmed that servers running terminal services (like ever server) with MS09-059 can potentially have this stop errors and the only solution is to apply this hot fix below:

http://support.microsoft.com/default.aspx/kb/978243

 
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Posted by on January 5, 2010 in Windows

 

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CPU issue causing BSOD 7F (0x0D, 0x00, 0x00) & 9C (0x00,xxx,xx,xx)

We had a strange server that would BSOD regularly with stop codes 7F or 9C, in the later days it was BSODing every 10 mins or so.

So we had the motherboard change and it stop BSODing for about 1 hour and started again!

Diagnostics was ran but all were successful (how typical!) and HP was really reluctant to bring down other parts as the diagnostics showed okay. In fact, this is not the first time I have seen HP servers with good diagnostics but after changing on of the parts, everything is resolved. Read the rest of this entry »

 
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Posted by on February 21, 2009 in Windows

 

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Windows 2000 cannot startup with message “loader error 3

Recently we were going through a upgrade exercise for our entire Windows estate to patch them to out latest security and company specific components. We encountered, so far, two servers that when rebooted, Windows 2000 will not start up and they showed this error

Windows 2000 could not start because of an error in the software. Please report this problem as Loader Error 3.

Starting up in recovery console or safe mode is no hope as we encountered the same error. So this points to a fundamental issue with the Operating System. Read the rest of this entry »

 
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Posted by on February 21, 2009 in Windows

 

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MSCluster: Low free PTEs caused cluster service to disconnect

Back in the days when a lot of us are not sure what the 3GB switch really does and thought its must be set so that Windows can recognise 4GB RAM and above, a number of our application servers has been set with 3GB switches in their servers. This is one of the servers.

The other day one of the application cluster suddenly failed over. A quick check on the servers’ eventlogs show not issues with low non-paged pool memory or memory issues nor any network issues. The application logs was rather clean, other than a strange repetitive event from the MOM agent. We have a keep alive event which the MOM agent runs once a day, but I was seeing the same event running 2 twice every minute. On another server when had the same program we could see that the idling node had cpu running at 20% or more. Once we stopped the MOM agent, the cpu dropped to almost idle. Read the rest of this entry »

 
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Posted by on June 30, 2008 in Windows

 

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DFSR: TSM excluding replicated folders in backup

This is an issue if you are running DFSR and using TSM as a backup client, that TSM will not backup the replicated folders. Apparently DFSR sets up the keys in

HKLM\SYSTEM\CurrentControlSet\Control\BackupRestor e\FilesNotToBackup

and the TSM client honours these values and would exclude replicated folders from its backup.

There is an interim fix from TSM that should fix this issue.

The manual workaround is to stop DFSR before backup runs and start it after the backup is complete.

 
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Posted by on May 28, 2008 in Windows

 

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Windebug: Server out of domain due to TCP/UDP port maxed

Last 2 weeks we had 2 different business services that faced similar issues. Essentially, their servers would drop off the domain, so when you tried to logon with your domain account, it will complain that the server is not in the domain.

I came to work on this when we had a number of servers from the same service team that had SCOM heartbeat issues. When we tried to logon to have to a look, we found that those servers had dropped out of the domain. Read the rest of this entry »

 
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Posted by on May 13, 2008 in Windows

 

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