View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0023026 | Lazarus | Printer | public | 2012-09-30 02:32 | 2014-07-15 17:58 |
| Reporter | Luiz Americo | Assigned To | Jesus Reyes | ||
| Priority | normal | Severity | crash | Reproducibility | always |
| Status | closed | Resolution | fixed | ||
| Product Version | 1.0.8 | Product Build | |||
| Target Version | 1.2.0 | Fixed in Version | 1.3 (SVN) | ||
| Summary | 0023026: Program crashes if printer units are added to project under windows 64bit | ||||
| Description | To get the crash: 1) Create an empty project 2) Add printer4lazarus requirement 3) Add Printers unit to uses 4) Run the program 5) Close the program -> BUM! The crash occurs in a call to CreateDC in a cascade started due to a call to DoResetPrintersList in destructor of TWinPrinter Removing the call to DoResetPrintersList fixes the issue Using Lazarus 1.0 r38415 FPC 2.6.0 x86_64-win64-win32/win64 under windows 7 64bit Tested again with Lazarus 64bit 1.0.8 + fpc 2.6.2 (official installer) under windows 7 | ||||
| Tags | No tags attached. | ||||
| Fixed in Revision | 43024 | ||||
| LazTarget | 1.2 | ||||
| Widgetset | Win32/Win64 | ||||
| Attached Files |
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| related to | 0012974 | new | FPC | FPC can't catch windows exceptions (av's) in a try/except in a dll call | |
| has duplicate | 0025310 | closed | Jesus Reyes | Lazarus | Error in file winprinters.inc, compiled on Win 64 bits |
| related to | 0026489 | closed | Jesus Reyes | Lazarus | Out of memory |
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I noticed that not only in destruction it crashes. If i call f PrintDialog.Execute it will crash in the same place: First call to CreateDC in TWinPrinter.SetDC |
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More info: - It does not matter if printer is on or off - Exactly the same program in the same computer does not crashes if is compiled with a 32bit compiler (fpc 260). The CreateDC call runs fine - StackTrace: TApplication.HandleException CreateDC Exception:"Control-C hit" (Error:"A operaþ Òo foi concluÝda com Ûxito. ", DC=0 Driver="HP Officejet 4500 G510a-f" Device="HP Officejet 4500 G510a-f" Po rt="USB001") Stack trace: $0000000000638E8E TWINPRINTER__SETDC, line 159 of ./win32/winprinters.inc $00000000006389CE TWINPRINTER__PRINTERSELECTED, line 84 of ./win32/winprinte rs.inc $000000000062EB62 TPRINTER__SETPRINTER, line 475 of printers.pas $000000000062F265 TPRINTER__SETPRINTERINDEX, line 686 of printers.pas $000000000062F31E TPRINTER__SELECTCURRENTPRINTERORDEFAULT, line 705 of print ers.pas $000000000062F01A TPRINTER__GETPRINTERS, line 632 of printers.pas $0000000000637BBA TPRINTDIALOG__EXECUTE, line 201 of ./win32/winprndialogs.i nc $00000000005DE46F TWINDOWSXPFORM__TOOLBUTTON9CLICK, line 268 of WindowsXPSty leDemo.pas $000000000056349B TCONTROL__CLICK, line 2742 of ./include/control.inc $0000000000530925 TTOOLBUTTON__CLICK, line 772 of ./include/toolbutton.inc $000000000052EB9D TTOOLBUTTON__MOUSEUP, line 136 of ./include/toolbutton.inc $0000000000562607 TCONTROL__DOMOUSEUP, line 2192 of ./include/control.inc $00000000005631C0 TCONTROL__WMLBUTTONUP, line 2640 of ./include/control.inc $000000000040CCFE $0000000000560F6D TCONTROL__PERFORM, line 1467 of ./include/control.inc $00000000005512A1 TWINCONTROL__ISCONTROLMOUSEMSG, line 4678 of ./include/win control.inc $0000000000552EA0 TWINCONTROL__WNDPROC, line 5287 of ./include/wincontrol.in c WARNING: TLCLComponent.Destroy with LCLRefCount>0. Hint: Maybe the component is processing an event? |
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Run the compiled program without gdb. The same happends to me with gdb in 32 bits and finally it was related to a faulty printer driver that raises an exception that is being catched by gdb :-? Just changed my default printer to other one and no problem, until I try to select the faulty one. Without gdb no problem at all. |
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I get the error even if not running under GDB Tested with Lazarus 1.0.8 + fpc 2.6.2 (official installer) under windows 7 |
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Try using 2.7.1 because a win64 exception in the driver could be badly handled in 2.6.2 because it does not shave SEH. |
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@mejuto: good hint. Probably a fpc bug. Unfortunately i can't test 2.7.1 now. I'll do as soon as possible |
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Ok, r43024 fix specifically the bug as described in "description". The bug reported in note 62756 won't be fixed by this patch because as José Mejuto noted, this seems to be a problem in FPC about SEH exception handling, which is fixed in FPC 2.7.1. As as side note, comments in bug 0012974 talk about this same problem, and I tested the solution given by Bernd Engelhardt in note 40688 and it works fine when using FPC 2.6.2, no further tests were made except by recompiling Lazarus and the problem described in this report. So use at on your own risk ;) |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2012-09-30 02:32 | Luiz Americo | New Issue | |
| 2012-09-30 02:32 | Luiz Americo | LazTarget | => - |
| 2012-09-30 02:32 | Luiz Americo | Widgetset | => Win32/Win64 |
| 2012-09-30 02:33 | Luiz Americo | LazTarget | - => 1.0.2 |
| 2012-09-30 02:37 | Luiz Americo | Note Added: 0062756 | |
| 2012-09-30 06:34 | Luiz Americo | Note Added: 0062759 | |
| 2012-10-09 13:42 | Martin Friebe | LazTarget | 1.0.2 => 1.0.4 |
| 2012-10-09 13:46 | Martin Friebe | Target Version | 1.0.2 => 1.0.4 |
| 2012-10-09 20:29 | José Mejuto | Note Added: 0063032 | |
| 2013-04-11 17:43 | Luiz Americo | Note Added: 0066926 | |
| 2013-04-11 17:44 | Luiz Americo | LazTarget | 1.0.4 => 1.0.10 |
| 2013-04-11 17:44 | Luiz Americo | Product Version | => 1.0.8 |
| 2013-04-11 17:44 | Luiz Americo | Target Version | 1.0.4 => 1.0.10 |
| 2013-04-11 17:45 | Luiz Americo | Description Updated | View Revisions |
| 2013-04-11 18:30 | Jesus Reyes | Assigned To | => Jesus Reyes |
| 2013-04-11 18:30 | Jesus Reyes | Status | new => assigned |
| 2013-04-11 19:55 | José Mejuto | Note Added: 0066929 | |
| 2013-04-13 15:04 | Luiz Americo | Note Added: 0066945 | |
| 2013-09-14 00:41 | Martin Friebe | LazTarget | 1.0.10 => 1.2 |
| 2013-09-14 00:42 | Martin Friebe | Target Version | 1.0.10 => 1.2.0 |
| 2013-09-29 07:03 | Jesus Reyes | Fixed in Revision | => 43024 |
| 2013-09-29 07:03 | Jesus Reyes | Note Added: 0070437 | |
| 2013-09-29 07:03 | Jesus Reyes | Status | assigned => resolved |
| 2013-09-29 07:03 | Jesus Reyes | Fixed in Version | => 1.3 (SVN) |
| 2013-09-29 07:03 | Jesus Reyes | Resolution | open => fixed |
| 2013-09-29 07:04 | Jesus Reyes | Relationship added | related to 0012974 |
| 2013-09-29 13:11 | Luiz Americo | Status | resolved => closed |
| 2013-11-12 22:38 | Jesus Reyes | Relationship added | has duplicate 0025310 |
| 2014-07-15 17:58 | Jesus Reyes | Relationship added | related to 0026489 |
