Hello,

I am using fpc 1.9.5 (2004/09/15).

There is a problem with the unit heaptrc and the routine Reallocmem. For instance

  var p : PLongword;
  Reallocmem(p,1000*4);
  ...
  Reallocmem(p,200*4); <- this instruction upset heaptrc

Does the problem come from Reallocmem or from the heaptrc unit?

Thanks,

I am having some problems with heaptrc and reallocmem too. Using your example I could reproduce it in a 3 line program (instead of lazarus).

Reallocmem moved all the data (4000 bytes in your example) to a space of size 800. Of course this is a bug. It is like likely that the old heap manager could resize memory in the same block and thus didn't need to move. Attached patch solved this issue for me. Can it be applied, or do I need to submit a bug report (with sample prog) for it too?

Regards,
Vincent.

I'll apply the fix when i'm at home

The problem is the change in TraceMemsize() to return the size stored in the information of heaptrc instead of querying SysMemsize()

Thanks.