BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  MM stack trace?          BorlandTalk.com Forum Index -> Delphi Language BASM View previous topic :: View next topic   Author Message Brad White Guest Posted: Tue Nov 22, 2005 5:57 pm    Post subject: MM stack trace? Even with the debug info dll, and Use Debug dcu's, this is all I get for a stack trace. Stack trace of when this block was allocated (return addresses): 448292B 449547E 4494AD5 449725C 7C816D4F [RegisterWaitForInputIdle] The debug info dll added [RegisterWaitForInputIdle] That was missing without the dll. What is the secret? -- Brad. Back to top Pierre le Riche Guest Posted: Tue Nov 22, 2005 6:53 pm    Post subject: Re: MM stack trace? Hi Brad, Quote: What is the secret? If the leak was caused by a dynamically loaded DLL that was unloaded before the leak checking code is run, then the unit/line parsing code will not be able to translate addresses in the range where the dll was loaded to unit/line info. Regards, Pierre Back to top Brad White Guest Posted: Tue Nov 22, 2005 8:59 pm    Post subject: Re: MM stack trace? program TestMemoryLeak; {$APPTYPE CONSOLE} uses FastMM4, SysUtils, Classes, Windows; var TestLeak: TStringList; begin TestLeak := TStringList.Create; OutputDebugString(PChar(TestLeak.Text)); end. Results in: --------------------------------2005/11/22 11:14:32-------------------------------- A memory block has been leaked. The size is: 68 Stack trace of when this block was allocated (return addresses): 448292B 7C816D4F [RegisterWaitForInputIdle] The block is currently used for an object of class: TStringList Current memory dump of 256 bytes starting at pointer address 94DA90: 04 37 49 04 08 00 00 00 B8 56 95 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 D0 25 6B FF D4 BB 49 04 D4 BB 49 04 D4 BB 49 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 --------------------------------2005/11/22 11:14:32-------------------------------- A memory block has been leaked. The size is: 12 Stack trace of when this block was allocated (return addresses): 448292B 449547E 4494AD5 449725C 7C816D4F [RegisterWaitForInputIdle] The block is currently used for an object of class: Unknown Current memory dump of 256 bytes starting at pointer address 9556B0: 01 00 00 00 02 00 00 00 0D 0A 00 00 B0 A9 6A FF 00 00 00 00 31 58 95 00 00 00 00 00 00 00 00 00 00 00 00 00 2B 29 48 04 BE EF 48 04 7E FE 48 04 4F 3A 48 04 B7 3A 48 04 4F 6D 81 7C 00 00 00 00 00 00 00 00 00 00 00 00 4B 29 48 04 7E FE 48 04 4F 3A 48 04 B7 3A 48 04 4F 6D 81 7C 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0A 00 00 00 00 00 00 00 C8 56 95 00 D4 B8 49 04 D4 BB 49 04 D4 BB 37 A9 6A FF 49 04 00 00 00 00 61 55 95 00 00 00 00 00 00 00 00 00 00 00 00 00 2B 29 48 04 67 F0 48 04 7E FE 48 04 4F 3A 48 04 B7 3A 48 04 4F 6D 81 7C 00 00 00 00 00 00 00 00 00 00 00 00 4B 29 48 04 E7 39 48 04 7F 3C 48 04 4F 6D 81 7C 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0C 00 00 00 00 00 00 00 40 57 95 00 D4 B8 49 04 D4 BB 49 04 D4 BB 49 04 BF A8 6A FF --------------------------------2005/11/22 11:14:32-------------------------------- This application has leaked memory. The small block leaks are: 5 - 12 bytes: Unknown x 1 53 - 68 bytes: TStringList x 1 -- Brad. Back to top Pierre le Riche Guest Posted: Tue Nov 22, 2005 11:40 pm    Post subject: Re: MM stack trace? Hi Brad, The example you gave works for me. I get the following stack trace: --------------------------------2005/11/23 1:37:53-------------------------------- A memory block has been leaked. The size is: 52 Stack trace of when this block was allocated (return addresses): 4028CF [System][@GetMem] 40363F [System][TObject.NewInstance] 4038EA [System][@ClassCreate] 40366C [System][TObject.Create] 4163F4 [C:temp10Project2.dpr][Project2][Project2][13] 7C90E64E [ZwSetInformationThread] 7C816D4F [RegisterWaitForInputIdle] 7C8399F3 [FindAtomW] 7C816D58 [RegisterWaitForInputIdle] .... I set the linker to create a detailed map file and I defined "FullDebugMode". Regards, Pierre Back to top Pierre le Riche Guest Posted: Tue Nov 22, 2005 11:43 pm    Post subject: Re: MM stack trace? Hi Brad, Quote: Even with the debug info dll, and Use Debug dcu's, this is all I get for a stack trace. You also need to include either TD32 debug info, a .map file, a .jdbg file or embedded jcl debug info. Regards, Pierre Back to top Brad White Guest Posted: Wed Nov 23, 2005 1:51 am    Post subject: Re: MM stack trace? "Pierre le Riche" <pleriche (AT) hotmail (DOT) com> wrote Quote: Hi Brad, Even with the debug info dll, and Use Debug dcu's, this is all I get for a stack trace. You also need to include either TD32 debug info, a .map file, a .jdbg file or embedded jcl debug info. OK. Thanks, that helps a lot. Right down to the line numbers. I didn't see this requirement documented anywhere. Did I miss it somehow? -- Brad White Back to top Pierre le Riche Guest Posted: Wed Nov 23, 2005 8:22 pm    Post subject: Re: MM stack trace? Hi Brad, Quote: I didn't see this requirement documented anywhere. Did I miss it somehow? Oops... you're right. I guess it belongs in the FAQ. Will correct ASAP. 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