21.2.35 crash on solaris

I think I pressed C-x C-o to switch to another buffer when xemacs crashed. It printed out: Fatal error: assertion failed, file alloc.c, line 2487, GCLI_lh->type < lrecord_type_count but no lisp backtrace. The C backtrace is appended below. Ray #0 0xfeb16870 in _libc_kill () from /usr/lib/libc.so.1 #1 0xa9924 in fatal_error_signal (sig=6) at emacs.c:514 #2 <signal handler called> #3 0xfeb16870 in _libc_kill () from /usr/lib/libc.so.1 #4 0xfeab92a4 in abort () from /usr/lib/libc.so.1 #5 0xac9f4 in assert_failed (file=0x9b7 <Address 0x9b7 out of bounds>, line=2503608, expr=0x2633b8 "GCLI_lh->type < lrecord_type_count") at emacs.c:3118 #6 0x6a778 in mark_object (obj=-4274976) at alloc.c:2487 #7 0x6c350 in garbage_collect_1 () at alloc.c:3459 #8 0xb4038 in Ffuncall (nargs=1, args=0xffbeb51c) at eval.c:3163 #9 0x7bc6c in execute_optimized_program (program=0xffbeb51c "", stack_depth=1, constants_data=0x82e710) at bytecode.c:745 #10 0x7b49c in funcall_compiled_function (fun=8392988, nargs=2, args=0xffbeb780) at bytecode.c:517 #11 0xb43e4 in Ffuncall (nargs=2, args=0xffbeb774) at eval.c:3249 #12 0x7bc6c in execute_optimized_program (program=0xffbeb774 "", stack_depth=2, constants_data=0x836710) at bytecode.c:745 #13 0x7b49c in funcall_compiled_function (fun=4046948, nargs=3, args=0xffbeb9d8) at bytecode.c:517 #14 0xb43e4 in Ffuncall (nargs=3, args=0xffbeb9d0) at eval.c:3249 #15 0xb54dc in call3 (fn=8464604, arg0=3358668, arg1=6458084, arg2=3246084) at eval.c:3898 #16 0x12b054 in Fexpand_file_name (name=6458084, default_directory=3246084) at fileio.c:767 #17 0xb4218 in Ffuncall (nargs=2, args=0xffbebba8) at eval.c:3214 #18 0xb4b00 in Fapply (nargs=2, args=0xffbebd50) at eval.c:3486 #19 0xb4398 in Ffuncall (nargs=2, args=0xffbebd4c) at eval.c:3235 #20 0x7bc6c in execute_optimized_program (program=0xffbebd4c "", stack_depth=2, constants_data=0x836610) at bytecode.c:745 #21 0x7b49c in funcall_compiled_function (fun=4046948, nargs=3, args=0xffbebfb0) at bytecode.c:517 #22 0xb43e4 in Ffuncall (nargs=3, args=0xffbebfa8) at eval.c:3249 #23 0xb54dc in call3 (fn=8464796, arg0=3358668, arg1=6458084, arg2=3246084) at eval.c:3898 #24 0x12b054 in Fexpand_file_name (name=6458084, default_directory=3246084) at fileio.c:767 #25 0xc373c in lock_file (fn=6458084) at filelock.c:316 #26 0x12fd94 in Fwrite_region_internal (start=3, end=8191, filename=8003412, append=3246084, visit=3246108, lockname=6458084, codesys=5630720) at fileio.c:3192 #27 0xb42bc in Ffuncall (nargs=7, args=0xffbec434) at eval.c:3214 #28 0x7bc6c in execute_optimized_program (program=0xffbec434 "", stack_depth=7, constants_data=0x55e410) at bytecode.c:745 #29 0x7b49c in funcall_compiled_function (fun=5605348, nargs=7, args=0xffbec6c0) at bytecode.c:517 #30 0xb43e4 in Ffuncall (nargs=7, args=0xffbec6a0) at eval.c:3249 #31 0xb4b00 in Fapply (nargs=2, args=0xffbec860) at eval.c:3486 #32 0xb4398 in Ffuncall (nargs=2, args=0xffbec85c) at eval.c:3235 #33 0x7bc6c in execute_optimized_program (program=0xffbec85c "", stack_depth=2, constants_data=0x836710) at bytecode.c:745 #34 0x7b49c in funcall_compiled_function (fun=4046948, nargs=8, args=0xffbecac0) at bytecode.c:517 #35 0xb43e4 in Ffuncall (nargs=8, args=0xffbecab8) at eval.c:3249 #36 0xb56b0 in call8 (fn=8464604, arg0=3361372, arg1=3, arg2=8191, arg3=8003412, arg4=3246084, arg5=3246108, arg6=6458084, arg7=5630720) at eval.c:4002 #37 0x12fa44 in Fwrite_region_internal (start=3, end=8191, filename=8003412, append=3246084, visit=3246108, lockname=6458084, codesys=5630720) at fileio.c:3171 #38 0xb42bc in Ffuncall (nargs=7, args=0xffbece1c) at eval.c:3214 #39 0x7bc6c in execute_optimized_program (program=0xffbece1c "", stack_depth=7, constants_data=0x55e410) at bytecode.c:745 #40 0x7b49c in funcall_compiled_function (fun=5605348, nargs=7, args=0xffbed0a8) at bytecode.c:517 #41 0xb43e4 in Ffuncall (nargs=7, args=0xffbed088) at eval.c:3249 #42 0xb4b00 in Fapply (nargs=2, args=0xffbed248) at eval.c:3486 #43 0xb4398 in Ffuncall (nargs=2, args=0xffbed244) at eval.c:3235 #44 0x7bc6c in execute_optimized_program (program=0xffbed244 "", stack_depth=2, constants_data=0x836610) at bytecode.c:745 #45 0x7b49c in funcall_compiled_function (fun=4046948, nargs=8, args=0xffbed4a8) at bytecode.c:517 #46 0xb43e4 in Ffuncall (nargs=8, args=0xffbed4a0) at eval.c:3249 #47 0xb56b0 in call8 (fn=8464796, arg0=3361372, arg1=3, arg2=8191, arg3=8003412, arg4=3246084, arg5=3246108, arg6=6458084, arg7=5630720) at eval.c:4002 #48 0x12fa44 in Fwrite_region_internal (start=3, end=8191, filename=8003412, append=3246084, visit=3246108, lockname=6458084, codesys=5630720) at fileio.c:3171 #49 0xb42bc in Ffuncall (nargs=7, args=0xffbed804) at eval.c:3214 #50 0x7bc6c in execute_optimized_program (program=0xffbed804 "", stack_depth=7, constants_data=0x55e410) at bytecode.c:745 #51 0x7b49c in funcall_compiled_function (fun=5605348, nargs=6, args=0xffbeda90) at bytecode.c:517 #52 0xb43e4 in Ffuncall (nargs=6, args=0xffbeda74) at eval.c:3249 #53 0x7bc6c in execute_optimized_program (program=0xffbeda74 "", stack_depth=6, constants_data=0x4f92d0) at bytecode.c:745 #54 0x7b49c in funcall_compiled_function (fun=5261988, nargs=2, args=0xffbedce8) at bytecode.c:517 #55 0xb43e4 in Ffuncall (nargs=2, args=0xffbedcdc) at eval.c:3249 #56 0x7bc6c in execute_optimized_program (program=0xffbedcdc "", stack_depth=2, constants_data=0x4f8310) at bytecode.c:745 #57 0x7b49c in funcall_compiled_function (fun=5262072, nargs=0, args=0xffbedf48) at bytecode.c:517 #58 0xb43e4 in Ffuncall (nargs=0, args=0xffbedf44) at eval.c:3249 #59 0x7bc6c in execute_optimized_program (program=0xffbedf44 "", stack_depth=0, constants_data=0x4f8410) at bytecode.c:745 #60 0x7b49c in funcall_compiled_function (fun=5262044, nargs=0, args=0xffbee1b0) at bytecode.c:517 #61 0xb43e4 in Ffuncall (nargs=0, args=0xffbee1ac) at eval.c:3249 #62 0x7bc6c in execute_optimized_program (program=0xffbee1ac "", stack_depth=0, constants_data=0x500710) at bytecode.c:745 #63 0x7b49c in funcall_compiled_function (fun=5261932, nargs=1, args=0xffbee410) at bytecode.c:517 #64 0xb43e4 in Ffuncall (nargs=1, args=0xffbee408) at eval.c:3249 #65 0x82374 in Fcall_interactively (function=4920932, record_flag=3246084, keys=3246084) at callint.c:946 #66 0xb2b6c in Fcommand_execute (cmd=4920932, record=3246084, keys=3246084) at eval.c:2652 #67 0x10f450 in execute_command_event (command_builder=0x659680, event=7443828) at event-stream.c:3838 #68 0x10fea0 in Fdispatch_event (event=7443828) at event-stream.c:4157 #69 0x8c304 in Fcommand_loop_1 () at cmdloop.c:579 #70 0x8c044 in command_loop_1 (dummy=6618880) at cmdloop.c:494 #71 0xb00b4 in condition_case_1 (handlers=3246180, bfun=0x8bff8 <command_loop_1>, barg=3246084, hfun=0x8c4e4 <cmd_error>, harg=3246084) at eval.c:1640 #72 0x8c5f4 in command_loop_2 (dummy=3246084) at cmdloop.c:256 #73 0xafc24 in internal_catch (tag=3328196, func=0x8c5a8 <command_loop_2>, arg=3246084, threw=0x0) at eval.c:1306 #74 0x8b940 in initial_command_loop (load_me=574888) at cmdloop.c:305 #75 0xab64c in xemacs_21_2_b35_sparc_sun_solaris2_7 (argc=1, argv=0xffbeed74, envp=0xffbeed7c, restart=0) at emacs.c:2155 #76 0xabe70 in main (argc=1, argv=0xffbeed74, envp=0xffbeed7c) at emacs.c:2584