Hello:

Below is an excerpt from a madExcept bug report. Does anyone have any
idea why the FBClient.dll is hanging?

This is code that run many times in a session without problems. The FB
DB is 2.52, superserver, local HD installed. The app is desktop app
created in Delphi XE2. The DB is local to the user's HD.

Thank you for any insight that might help me keep this from happening.

This issue of the DB hanging on a fetch happens once in a while and very
infrequently considering the number of fetches that occur during a user
session with the application. Not all users experience this issue. This
particular user has this the most often (a few times a month maybe)

Chuck Belanger


operating system : Windows 7 x64 Service Pack 1 build 7601
system language : English
system up time : 12 hours 29 minutes
program up time : 38 minutes 18 seconds
processors : 8x Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz
physical memory : 4279/8140 MB (free/total)
free disk space : (C:) 162.37 GB
display mode : 1920x1080, 32 bit
process id : $2ac0
allocated memory : 90.75 MB
executable : ProfViewer.exe
exec. date/time : 2013-03-08 22:30
version : 3.0.1.51
compiled with : Delphi XE2
madExcept version : 4.0.2
callstack crc : $1448d532, $52e21aab, $5654e86b
exception number : 1
exception message : The application seems to be frozen.

main thread ($245c):
0851cd53 +0a3 fbclient.dll isc_dsql_fetch_m
085205ba +10a fbclient.dll isc_dsql_fetch
0073e4b5 +00d ProfViewer.exe IB_Components 31595 +3
TIB_Dataset.SysStateChanged
00733b90 +000 ProfViewer.exe IB_Components 26897 +0
TIB_Dataset.StateChanged
0072d210 +14c ProfViewer.exe IB_Components 24088 +13
TIB_Statement.API_Prepare
0072a93e +0aa ProfViewer.exe IB_Components 22997 +17
TIB_Statement.SysGetRawSQL
007468ea +02a ProfViewer.exe IB_Components 35265 +4
TIB_BDataset.SysMoveBy
00734c6a +02e ProfViewer.exe IB_Components 27335 +4
TIB_Dataset.SysJustAfterOpen
00734bf0 +0c4 ProfViewer.exe IB_Components 27314 +14 TIB_Dataset.Open
010ea67c +284 ProfViewer.exe Data 1669 +98
TDataCollection.HasChildren
0135474b +133 ProfViewer.exe uViewer 25749 +79
TMainForm.vtRegistryInitNode
00666853 +01f ProfViewer.exe VirtualTrees 22012 +2
TBaseVirtualTree.DoInitNode