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Key: CORE-3673
Type: Bug Bug
Status: Open Open
Priority: Critical Critical
Assignee: Unassigned
Reporter: Helmut Steinberger
Votes: 0
Watchers: 3
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Firebird Core

unreproducable crash of Fbserver.exe

Created: 23/Nov/11 01:05 PM   Updated: 14/Dec/11 06:41 PM
Component/s: None
Affects Version/s: 2.5.1
Fix Version/s: None

File Attachments: 1. File memorydump.zip.001 (8.00 MB)
2. File memorydump.zip.002 (8.00 MB)
3. File memorydump.zip.003 (4.14 MB)
4. Text File WatsonLog1.txt (216 kB)
5. Text File WatsonLog2.txt (816 kB)

Environment: Windows 2003 Server


 Description  « Hide
Hello,

I have ocassionaly occuring fbserver crashes at our customers firebird server. I do not have any clue what could be the reason for this.
After inspecting the firebird.log of other customers, I discovered, that also other customers with different environment have the same crashes, but that crashes are very rarely. Sometimes there are months without crash, and then there are 4 or 5 crashes on 1 single day.
So I installed the debug build of firebird and now I have a log of the last crash (today).

Could you please help me identify the reason for this crashes?

Kind regards

Helmut Steinberger

The log is attached.

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Vlad Khorsun added a comment - 28/Nov/11 03:31 PM
1. Could you produce full memory dump ?
2. Is it possible that application works with the same attachment from the more than one thread at the same time ?

Helmut Steinberger added a comment - 14/Dec/11 01:06 PM - edited
Hello Vlad,

the error did occur today several times at the customers server. This is really a big problem.

Please help me as soon as possible with a hint, what I can ckeck or what I cann do to mallow you check what this error comes from.

Pleas give me a short answer, if you have red this and you are checking it.

Kind regards

Helmut Steinberger

Here is a full logfile of drwtsn with hopefully enough information to track the error.

Dmitry Yemanov added a comment - 14/Dec/11 01:13 PM
Moved the logs to attachments.

Dmitry Yemanov added a comment - 14/Dec/11 01:18 PM
You were asked about the memory dumps created by DrWatson, not only its log. Also, you haven't answered the second Vlad's question.

Helmut Steinberger added a comment - 14/Dec/11 01:28 PM
Sorry for that. How can I produce a full memory dump?

As for the 2nd question: The problem occures when printing and It could be that reportbuilder (reporting tool I use in my Delphi Application) does some multithreading.
I will take a look at this. So please tell me first, what I shall do to get a full memory dump.

Dmitry Yemanov added a comment - 14/Dec/11 01:51 PM
The memory dump should have been created by DrWatson (if it was set up properly) and it should reside in the same directory as the log file.

Helmut Steinberger added a comment - 14/Dec/11 02:47 PM
Memorydump was disabled. Now it is enabled but I have to wait for the error because it is not reproducable.
After the office of the customer is closed, I will do some printing stuff, where the error often occurs to get a memory dump. I will be back if I have successfully crashed the server.

Helmut Steinberger added a comment - 14/Dec/11 06:28 PM
This is the memorydump file. Had to splitt to 3 ZIP files.