redisplay crash

I just hit the following crash in redisplay. Anyone recognize this? Dynarr_free(void * 0x0000004e) line 201 + 3 bytes free_display_line(display_line * 0x02483478) line 7016 + 12 bytes free_display_lines(display_line_dynarr * 0x0209cbe0) line 7047 + 19 bytes free_display_structs(window_mirror * 0x020e8580) line 7066 + 12 bytes free_window_mirror(window_mirror * 0x020e8580) line 488 + 9 bytes update_mirror_internal(long 28356612, window_mirror * 0x020e8580) line 368 + 9 bytes update_mirror_internal(long 30237696, window_mirror * 0x01ddd640) line 379 + 28 bytes update_frame_window_mirror(frame * 0x01d08800) line 471 + 22 bytes window_display_buffer(window * 0x01cd6400) line 585 + 21 bytes output_display_line(window * 0x01cd6400, display_line_dynarr * 0x01dde420, display_line_dynarr * 0x01dde500, int 0, int -1, int -1) line 581 + 9 bytes output_gutter(frame * 0x01d08800, int 0, int 0) line 318 + 25 bytes update_frame_gutters(frame * 0x01d08800) line 559 + 15 bytes redisplay_frame(frame * 0x01d08800, int 0) line 6424 + 9 bytes redisplay_device(device * 0x01da6700, int 1) line 6511 + 11 bytes redisplay_without_hooks() line 6589 + 11 bytes redisplay_no_pre_idle_hook() line 6673 redisplay() line 6645 Fnext_event(long 38698372, long 28356612) line 2207 Fcommand_loop_1() line 566 + 16 bytes command_loop_1(long 28356612) line 491 condition_case_1(long 28356708, long (long)* 0x0104a26d command_loop_1(long), long 28356612, long (long, long)* 0x01049c80 cmd_error(long, long), long 28356612) line 1815 + 7 bytes command_loop_3() line 252 + 35 bytes command_loop_2(long 28356612) line 264 internal_catch(long 28434436, long (long)* 0x01049dd0 command_loop_2(long), long 28356612, int * 0x00000000, long * 0x00000000) line 1478 + 7 bytes initial_command_loop(long 28356612) line 301 + 27 bytes STACK_TRACE_EYE_CATCHER(int 1, char * * 0x01b49500, char * * 0x01b05680, int 0) line 1940 + 9 bytes main(int 1, char * * 0x01b49500, char * * 0x01b05680) line 2359 + 21 bytes mainCRTStartup + 211 bytes _start() line 183 KERNEL32! 77e9bc52() -- Ben In order to save my hands, I am cutting back on my mail. I also write as succinctly as possible -- please don't be offended. If you send me mail, you _will_ get a response, but please be patient, especially for XEmacs-related mail. If you need an immediate response and it is not apparent in your message, please say so. Thanks for your understanding. See also http://www.666.com/ben/typing.html.