> Basically this means that your plug-ins creates drawables and doesn't > destroy them later nor does it attach them to any image. Of course it's > not correct that GIMP allows plug-ins to do such things. It should clean > up after them and release all resources they allocated. But this is not > an ideal world and this cleanup mechanism in the core remains to be > unimplemented. So as a plug-in developer you should be careful about > releasing all resources you are allocating in the GIMP core. Of course -- I wasn't expecting the GIMP to take out my trash for me, and I *thought* I had been careful to do so, but I'm clearly missing something. I've been going through old SVN versions of my plugin, and it looks like the bug has been there for a long time, but Gimp 2.2.11 doesn't report a tile ref error. Was there a change between 2.2 and 2.4 with respect to how various functions clean up, or is this likely just a change in reporting? I'm mostly looking for ways to help me narrow this down -- I have ~5000 lines of potentially-suspect code, since I was developing under 2.2.11 until recently, and am having little luck. I've found various snippets that change the likelihood of the bug occurring (mostly involving invoking other plugins via gimp_run_procedure), but are insufficient to reproduce it when used in isolation. If there were a way to check the number of tiles currently allocated, I believe it would be useful in the triage process. That said, I've sliced out chunks of my plug-in wholesale and run it with ltrace to catch all calls into the libgimp* family of libraries. Below is a (short) trace of an invocation that resulted in a tile ref count error. The likelihood of the problem occurring is ~proportional to the number of iterations of the denoted loop. Said loop is a one-for-one transcription of script_fu_coffee_stain (which calls a transcription of script_fu_distress_selection). I'll continue to eliminate code and try to create a self-contained example, but if anyone sees anything obviously wrong, I'd appreciate any pointers. Thanks, -Brennan --------------------------------------------------------------------------- gimp_main(0x82a7880, 6, 0xbff0f494, 0x82511a9, 0xb7ef8800 <unfinished ...> gimp_procedural_db_get_data(0x8252d23, 0x82cdbe0, 0x8252d0b, 0x835f1f8, 0x8356dc8) = 0 gimp_procedural_db_get_data(0x8252d2c, 0x82d6c40, 0x8252d0b, 0x835f1f8, 0x8356dc8) = 0 gimp_procedural_db_get_data(0x8252d38, 0x82dfca0, 0x8252d0b, 0x835f1f8, 0x8356dc8) = 0 gimp_image_new(400, 410, 0, 0xb75e4ff4, 52) = 1 gimp_layer_new(1, 0x875b6f4, 400, 410, 1) = 2 gimp_image_add_layer(1, 2, -1, 410, 1) = 1 gimp_display_new(1, 2, -1, 410, 1) = 1 gimp_image_height(1, 0xbff0e0e4, 0xbff0e058, 0x820c437, 0xbff0e3b0) = 410 gimp_image_width(1, 0xbff0e0e4, 0xbff0e058, 0x820c437, 0xbff0e3b0) = 400 // Begin loop; below is repeated 20 times, with some randomized parameters // Start script_fu_coffee_stain transcription gimp_layer_new(1, 0x8269958, 400, 400, 1) = 3 gimp_image_add_layer(1, 3, 0, 400, 1) = 1 gimp_selection_all(1, 3, 0, 400, 1) = 1 gimp_edit_clear(3, 3, 0, 400, 1) = 1 gimp_ellipse_select(1, 0, 0x40666000, 0, 0x40666000) = 1 // Start script_fu_distress_selection transcription gimp_image_width(1, 0xb7da34b0, 0xbff0e038, 0xb73ac181, 0xb74c4070) = 400 gimp_image_height(1, 0xb7da34b0, 0xbff0e038, 0xb73ac181, 0xb74c4070) = 410 gimp_image_base_type(1, 0xb7da34b0, 0xbff0e038, 0xb73ac181, 0xb74c4070) = 0 gimp_layer_new(1, 0x82697f3, 400, 410, 1) = 4 // Scratch layer is removed from image below gimp_image_add_layer(1, 4, 0, 410, 1) = 1 gimp_selection_is_empty(1, 4, 0, 410, 1) = 0 gimp_edit_fill(4, 1, 0, 410, 1) = 1 gimp_selection_invert(1, 1, 0, 410, 1) = 1 gimp_selection_is_empty(1, 1, 0, 410, 1) = 0 gimp_edit_clear(4, 1, 0, 410, 1) = 1 gimp_selection_invert(1, 1, 0, 410, 1) = 1 gimp_selection_none(1, 1, 0, 410, 1) = 1 gimp_layer_scale(4, 100, 102, 1, 1) = 1 // plug_in_spread gimp_run_procedure(0x826980a, 0xbff0e020, 0, 1, 13) = 0x8459e88 // plug_in_gauss_iir gimp_run_procedure(0x8269819, 0xbff0e020, 0, 1, 13) = 0x87521b0 gimp_layer_scale(4, 400, 410, 1, 13) = 1 // plug_in_threshold_alpha gimp_run_procedure(0x826982b, 0xbff0e020, 0, 1, 13) = 0x8459f48 // plug_in_gauss_iir gimp_run_procedure(0x8269819, 0xbff0e020, 0, 1, 13) = 0x845a050 gimp_selection_layer_alpha(4, 0xbff0e020, 0, 1, 13) = 1 // Remove scratch layer gimp_image_remove_layer(1, 4, 0, 1, 13) = 1 gimp_drawable_is_channel(3, 4, 0, 1, 13) = 0 // End script_fu_distress_selection transcription gimp_context_set_gradient(0x826995e, 1, 3, 0x4ba56359, 0x40369cb7) = 1 gimp_edit_blend(3, 3, 0, 8, 0) = 1 gimp_layer_set_offsets(3, 23, -17, 8, 0) = 1 // End script_fu_coffee_stain transcription // End loop gimp_selection_none(1, 181, 188, 8, 0) = 1 gimp_procedural_db_set_data(0x8252d23, 0x82cdbe0, 36936, 0x82d6c2c, 0x82dfca0) = 1 gimp_procedural_db_set_data(0x8252d2c, 0x82d6c40, 36936, 0x82d6c2c, 0x82dfca0) = 1 gimp_procedural_db_set_data(0x8252d38, 0x82dfca0, 12288, 0x82d6c2c, 0x82dfca0) = 1 <... gimp_main resumed> ) = 0 +++ exited (status 0) +++ _______________________________________________ Gimp-developer mailing list Gimp-developer@xxxxxxxxxxxxxxxxxxxxxx https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-developer
