bug#16299: 24.3.50; Crash on Windows XP when saving buffer to file

[martin rudalics <rudalics@gmx.at>]

With trunk saving a file on Windows XP currently runs into the following
crash (I have backup-by-copying set to t).

martin


(gdb) bt
#0  terminate_due_to_signal (sig=22, backtrace_limit=2147483647) at emacs.c:351
#1  0x011644fb in die (msg=0x1492938 "oldumask == oldrealmask", file=0x1492227 "fileio.c", line=3173) at alloc.c:6760
#2  0x0113541c in Fset_default_file_modes (mode=...) at fileio.c:3173
#3  0x01182528 in Ffuncall (nargs=2, args=0x82d094) at eval.c:2805
#4  0x011c3a12 in exec_byte_code (bytestr=..., vector=..., maxdepth=..., args_template=..., nargs=0, args=0x82d3d4) at bytecode.c:919
#5  0x01182cf4 in funcall_lambda (fun=..., nargs=0, arg_vector=0x82d3d4) at eval.c:2973
#6  0x01182746 in Ffuncall (nargs=1, args=0x82d3d0) at eval.c:2854
#7  0x011810f4 in eval_sub (form=...) at eval.c:2147
#8  0x0117cd08 in Fprogn (body=...) at eval.c:458
#9  0x0117cd70 in unwind_body (body=...) at eval.c:472
#10 0x01183892 in unbind_to (count=20, value=...) at eval.c:3296
#11 0x011c3ab7 in exec_byte_code (bytestr=..., vector=..., maxdepth=..., args_template=..., nargs=4, args=0x82d8b8) at bytecode.c:941
#12 0x01182cf4 in funcall_lambda (fun=..., nargs=4, arg_vector=0x82d8a8) at eval.c:2973
#13 0x01182746 in Ffuncall (nargs=5, args=0x82d8a4) at eval.c:2854
#14 0x011c3a12 in exec_byte_code (bytestr=..., vector=..., maxdepth=..., args_template=..., nargs=0, args=0x82dbf4) at bytecode.c:919
#15 0x01182cf4 in funcall_lambda (fun=..., nargs=0, arg_vector=0x82dbf4) at eval.c:2973
#16 0x01182746 in Ffuncall (nargs=1, args=0x82dbf0) at eval.c:2854
#17 0x011810f4 in eval_sub (form=...) at eval.c:2147
#18 0x0117f30c in internal_lisp_condition_case (var=..., bodyform=..., handlers=...) at eval.c:1313
#19 0x011c4939 in exec_byte_code (bytestr=..., vector=..., maxdepth=..., args_template=..., nargs=0, args=0x82e0d4) at bytecode.c:1169
#20 0x01182cf4 in funcall_lambda (fun=..., nargs=0, arg_vector=0x82e0d4) at eval.c:2973
#21 0x01182746 in Ffuncall (nargs=1, args=0x82e0d0) at eval.c:2854
#22 0x011810f4 in eval_sub (form=...) at eval.c:2147
#23 0x0117f30c in internal_lisp_condition_case (var=..., bodyform=..., handlers=...) at eval.c:1313
#24 0x011c4939 in exec_byte_code (bytestr=..., vector=..., maxdepth=..., args_template=..., nargs=0, args=0x82e5b8) at bytecode.c:1169
#25 0x01182cf4 in funcall_lambda (fun=..., nargs=0, arg_vector=0x82e5b8) at eval.c:2973
#26 0x01182746 in Ffuncall (nargs=1, args=0x82e5b4) at eval.c:2854
#27 0x011c3a12 in exec_byte_code (bytestr=..., vector=..., maxdepth=..., args_template=..., nargs=0, args=0x82e928) at bytecode.c:919
#28 0x01182cf4 in funcall_lambda (fun=..., nargs=0, arg_vector=0x82e928) at eval.c:2973
#29 0x01182746 in Ffuncall (nargs=1, args=0x82e924) at eval.c:2854
#30 0x011c3a12 in exec_byte_code (bytestr=..., vector=..., maxdepth=..., args_template=..., nargs=0, args=0x82ec68) at bytecode.c:919
#31 0x01182cf4 in funcall_lambda (fun=..., nargs=0, arg_vector=0x82ec68) at eval.c:2973
#32 0x01182746 in Ffuncall (nargs=1, args=0x82ec64) at eval.c:2854
#33 0x011c3a12 in exec_byte_code (bytestr=..., vector=..., maxdepth=..., args_template=..., nargs=0, args=0x82efb0) at bytecode.c:919
#34 0x01182cf4 in funcall_lambda (fun=..., nargs=0, arg_vector=0x82efb0) at eval.c:2973
#35 0x01182746 in Ffuncall (nargs=1, args=0x82efac) at eval.c:2854
#36 0x011c3a12 in exec_byte_code (bytestr=..., vector=..., maxdepth=..., args_template=..., nargs=1, args=0x82f338) at bytecode.c:919
#37 0x01182cf4 in funcall_lambda (fun=..., nargs=1, arg_vector=0x82f334) at eval.c:2973
#38 0x01182746 in Ffuncall (nargs=2, args=0x82f330) at eval.c:2854
#39 0x0117bc7a in Fcall_interactively (function=..., record_flag=..., keys=...) at callint.c:836
#40 0x0118257d in Ffuncall (nargs=4, args=0x82f53c) at eval.c:2812
#41 0x011c3a12 in exec_byte_code (bytestr=..., vector=..., maxdepth=..., args_template=..., nargs=1, args=0x82f894) at bytecode.c:919
#42 0x01182cf4 in funcall_lambda (fun=..., nargs=1, arg_vector=0x82f890) at eval.c:2973
#43 0x01182746 in Ffuncall (nargs=2, args=0x82f88c) at eval.c:2854
#44 0x0118200d in call1 (fn=..., arg1=...) at eval.c:2604
#45 0x010f58d2 in command_loop_1 () at keyboard.c:1552
#46 0x0117f414 in internal_condition_case (bfun=0x10f5260 <command_loop_1>, handlers=..., hfun=0x10f4acb <cmd_error>) at eval.c:1344
#47 0x010f4f13 in command_loop_2 (ignore=...) at keyboard.c:1170
#48 0x0117e9c8 in internal_catch (tag=..., func=0x10f4eef <command_loop_2>, arg=...) at eval.c:1108
#49 0x010f4ecd in command_loop () at keyboard.c:1149
#50 0x010f4667 in recursive_edit_1 () at keyboard.c:777
#51 0x010f4824 in Frecursive_edit () at keyboard.c:841
#52 0x010f29fe in main (argc=1, argv=0xa32808) at emacs.c:1637

Lisp Backtrace:
"set-default-file-modes" (0x82d098)
0x3e1e498 PVEC_COMPILED
"funcall" (0x82d3d0)
"backup-buffer-copy" (0x82d8a8)
0x3e1e8c8 PVEC_COMPILED
"funcall" (0x82dbf0)
0x3e1b4e8 PVEC_COMPILED
"funcall" (0x82e0d0)
"backup-buffer" (0x82e5b8)
"basic-save-buffer-2" (0x82e928)
"basic-save-buffer-1" (0x82ec68)
"basic-save-buffer" (0x82efb0)
"save-buffer" (0x82f334)
"call-interactively" (0x82f540)
"command-execute" (0x82f890)
(gdb)