Re: Mac OS X - Hang / C-g problem patch

[dme@dme.org]

* steventamm@mac.com [2002-12-08 06:15:21]
> [...]

I updated and re-configured, rebuilt, etc.

When attempting to use ERC, emacs reliably hangs in sys_select(), due
to there being no bits set in rfds.  Faking some bits using gdb lets
emacs carry on a little, but it hangs again quite quickly.  The trace
is:

(gdb) where
#0  0x90025cc8 in select ()
#1  0x00117cb0 in sys_select (n=10, rfds=0xbfffdf60, wfds=0x0, efds=0x0, timeout=0x0) at mac.c:2789
#2  0x00117dd8 in sys_read (fds=-1073750176, buf=0x1 <Address 0x1 out of bounds>, nbyte=3221217008) at mac.c:2818
#3  0x0007b520 in emacs_read (fildes=9, buf=0xbfffe0b0 "", nbyte=1024) at sysdep.c:3279
#4  0x00102b80 in read_process_output (proc=1108160672, channel=9) at process.c:4390
#5  0x00102694 in wait_reading_process_input (time_limit=30, microsecs=0, read_kbd=2571592, do_display=1) at process.c:4134
#6  0x0000c454 in sit_for (sec=30, usec=0, reading=1, display=1, initial_display=0) at dispnew.c:6247
#7  0x0006674c in read_char (commandflag=1, nmaps=4, maps=0xbfffefa0, prev_event=274970324, used_mouse_menu=0xbffff0a4) at keyboard.c:2630
#8  0x0006e754 in read_key_sequence (keybuf=0xbffff170, bufsize=33599088, prompt=274970324, dont_downcase_last=2362820, can_return_switch_frame=1, fix_current_buffer=2350356) at keyboard.c:8505
#9  0x0006415c in command_loop_1 () at keyboard.c:1473
#10 0x000c943c in internal_condition_case (bfun=0x63d34 <command_loop_1>, handlers=275016892, hfun=0x636e4 <cmd_error>) at eval.c:1352
#11 0x00063b14 in command_loop_2 () at keyboard.c:1274
#12 0x000c8edc in internal_catch (tag=4, func=0x63ad4 <command_loop_2>, arg=274970324) at eval.c:1112
#13 0x00063a6c in command_loop () at keyboard.c:1253
#14 0x00063480 in recursive_edit_1 () at keyboard.c:969
#15 0x00063608 in Frecursive_edit () at keyboard.c:1025
#16 0x000620dc in main (argc=0, argv=0xbffffdf8) at emacs.c:1647
#17 0x00003c48 in _start (argc=50, argv=0x0, envp=0x23b2b4) at /SourceCache/Csu/Csu-45/crt.c:267
#18 0x00003ac8 in start ()
(gdb) up
#1  0x00117cb0 in sys_select (n=10, rfds=0xbfffdf60, wfds=0x0, efds=0x0, timeout=0x0) at mac.c:2789
2789              if ((r = select (n, rfds, wfds, efds, &one_second)) > 0)
(gdb) print *rfds
$27 = {
  fds_bits = {0 <repeats 32 times>}
}
(gdb) 

Has anyone else seen this ?  I'll carry on looking...