View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0003819 | JEDI VCL | 00 JVCL Components | public | 2006-07-20 13:45 | 2006-07-24 03:35 |
| Reporter | Karlheinz | Assigned To | obones | ||
| Priority | normal | Severity | block | Reproducibility | always |
| Status | resolved | Resolution | fixed | ||
| Product Version | Daily / GIT | ||||
| Target Version | Fixed in Version | 3.30 | |||
| Summary | 0003819: Problems with TJvTimer in TJvAnimatedImage | ||||
| Description | The problem of the IDE bug is solved now. Delphi 7 at W2K But I have the following problems: 1. If I set the active property in TJvAnimatedImage to FALSE, I get with FastMM the message FastMM has detected an attempt to call a virtual method on a freed object => see the informations below. 2. If I set the active property in TJvAnimatedImage to TRUE and I close the form the main form (or application?) did not work anymore. | ||||
| Additional Information | --------------------------------2006/7/20 21:32:16-------------------------------- FastMM has detected an attempt to call a virtual method on a freed object. An access violation will now be raised in order to abort the current operation. Freed object class: TCriticalSection Virtual method: Offset +4 Virtual method address: 44FED0 The allocation number was: 146360 Stack trace of when the object was allocated (return addresses): 402EFC [system.pas][System][@GetMem][2439] 4040E7 [system.pas][System][TObject.NewInstance][8360] 4044D2 [system.pas][System][@ClassCreate][9019] 44FE3A [SyncObjs.pas][SyncObjs][TCriticalSection.Create][194] 4040F0 [system.pas][System][TObject.NewInstance][8360] 4044D2 [system.pas][System][@ClassCreate][9019] 690824 [JvTimer.pas][JvTimer][TJvTimerThread.Create][120] 690A32 [JvTimer.pas][JvTimer][TJvTimer.Create][226] 4319F0 [classes.pas][Classes][CreateComponent][6096] Stack trace of when the object was subsequently freed (return addresses): 402F27 [system.pas][System][@FreeMem][2466] 404105 [system.pas][System][TObject.FreeInstance][8366] 40451D [system.pas][System][@ClassDestroy][9060] 44FEB1 [SyncObjs.pas][SyncObjs][TCriticalSection.Destroy][202] 40414B [system.pas][System][TObject.Free][8385] 6908CF [JvTimer.pas][JvTimer][TJvTimerThread.Destroy][161] 40414B [system.pas][System][TObject.Free][8385] 690AAA [JvTimer.pas][JvTimer][TJvTimer.Destroy][240] 436F35 [classes.pas][Classes][TComponent.DestroyComponents][9853] The current stack trace leading to this error (return addresses): 6909CE [JvTimer.pas][JvTimer][TJvTimerThread.Execute][208] 436555 [classes.pas][Classes][ThreadProc][9372] 402F27 [system.pas][System][@FreeMem][2466] 404F82 [system.pas][System][ThreadWrapper][11554] 77E7B388 [lstrcmpiW] | ||||
| Tags | No tags attached. | ||||
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Point 1 is now fixed in SVN. Point 2 needs a demo application, I cannot reproduce it. |
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I am not sure if the following is the same as point 2 but it happens directly inside of the IDE. 1. create a new form 2. add a TJvAnimatedImage, Active is false by default 3. Start the windows taskmanager and check the CPU load for Delphi (should be very low) 4. switch Active in the Objectinspector to true => CPU Load is low after a second 5. switch Active to false => CPU load is very high (80 - 98% at PentiumIII 800 MHz, W2k; Delphi7) 6. switch Active to true => CPU load is low (4-8%) 7. I can do that several times with the same result |
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All points are now fixed in SVN. Original point 2 was a result of another issue (IDE deadlock), and point mentionned in note has been addressed. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2006-07-20 13:45 | Karlheinz | New Issue | |
| 2006-07-21 01:02 | obones | Note Added: 0009820 | |
| 2006-07-21 01:02 | obones | Status | new => feedback |
| 2006-07-21 12:50 | Karlheinz | Note Added: 0009837 | |
| 2006-07-23 05:52 | Karlheinz | Note Edited: 0009837 | |
| 2006-07-24 03:35 | obones | Status | feedback => resolved |
| 2006-07-24 03:35 | obones | Fixed in Version | => Daily / SVN |
| 2006-07-24 03:35 | obones | Resolution | open => fixed |
| 2006-07-24 03:35 | obones | Assigned To | => obones |
| 2006-07-24 03:35 | obones | Note Added: 0009848 |
