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[1.7.0-29] can't create master tty


I've recompiled screen for Cygwin 1.7.  It runs fine until I do the following:

* Open a cmd console and run c:\cygwin-1.7\bin\bash.exe --login .
* Start a new screen session (screen).
* Detach the screen session (C-a d).
* Exit bash.
* Try to start bash again.

Then I get:

      3 [main] bash 212 c:\cygwin-1.7\bin\bash.exe: *** fatal error - Can't
create master tty

The problem continues until I kill the detached screen process and all of its
child processes.

This problem doesn't occur with Cygwin 1.5, of course.  strace output is below.
If you'd like to try to reproduce it, you can download my binary screen package
for 1.7 from
http://home.comcast.net/~andrex/cygwin-1.7/screen/screen-4.0.3-1.tar.bz2 .

I Googled around and found a similar problem report from 1.7.0-3, at
http://www.mail-archive.com/cygwin@cygwin.com/msg87495.html .  That one seems to
have spontaneously gone away.

N.B. no cygcheck -svr here, since cygcheck seems to be totally broken for me in
1.7-- see next message.

Thanks,
Andrew.

C:\> strace c:\cygwin-1.7\bin\bash.exe
**********************************************
Program name: c:\cygwin-1.7\bin\bash.exe (pid 2676, ppid 1)
App version:  1005.25, api: 0.156
DLL version:  1007.0, api: 0.186
DLL build:    2008-08-20 13:01
OS version:   Windows NT-5.1
Heap size:    402653184
Date/Time:    2008-08-27 14:40:12
**********************************************
   62     769 [main] bash 2676 set_myself: myself->dwProcessId 2676
   54     823 [main] bash 2676 time: 1219862412 = time (0)
  699    1522 [main] bash 2676 parse_options: tty 1001
  115    1637 [main] bash 2676 parse_options: returning
   51    1688 [main] bash 2676 environ_init: GetEnvironmentStrings returned
0x10000
  120    1808 [main] bash 2676 environ_init: 0x6F8268: !C:=C:\
  945    2753 [sig] bash 2676 wait_sig: entering ReadFile loop, my_readsig 0x0,
my_sendsig 0x0
  176    2929 [main] bash 2676 environ_init: 0x6F8278: !EXITCODE=00000000
   67    2996 [main] bash 2676 environ_init: 0x6F8290:
ALLUSERSPROFILE=C:\Documents and Settings\All Users
   64    3060 [main] bash 2676 environ_init: 0x6F82C8: APPDATA=C:\Documents and
Settings\aschulma\Application Data
   63    3123 [main] bash 2676 environ_init: 0x6F8308:
COMMONPROGRAMFILES=C:\Program Files\Common Files
   64    3187 [main] bash 2676 environ_init: 0x6F8340:
COMPUTERNAME=D77E1BASCHULMA1
   62    3249 [main] bash 2676 environ_init: 0x6F8368:
COMSPEC=C:\WINDOWS\system32\cmd.exe
   67    3316 [main] bash 2676 parse_options: tty 1001
   63    3379 [main] bash 2676 parse_options: returning
   43    3422 [main] bash 2676 environ_init: 0x6F8390: CYGWIN=tty
  306    3728 [main] bash 2676 environ_init: 0x6F83B0: EPA_HOME=D:\EPA
   73    3801 [main] bash 2676 environ_init: 0x6F83C8: FP_NO_HOST_CHECK=NO
   63    3864 [main] bash 2676 environ_init: 0x6F83E0: HOMEDRIVE=C:
   62    3926 [main] bash 2676 environ_init: 0x6F83F8: HOMEPATH=\
   63    3989 [main] bash 2676 environ_init: 0x6F8408:
LOGONSERVER=\\D77E1BASCHULMA1
   62    4051 [main] bash 2676 environ_init: 0x6F8430:
MEETINGCENTERAPP=C:\Program Files\Meeting Center\
  184    4235 [main] bash 2676 environ_init: 0x6F8468: NUMBER_OF_PROCESSORS=1
   64    4299 [main] bash 2676 environ_init: 0x6F8488:
ORACLE_HOME=C:\Oracle\instantclient_11_1
   63    4362 [main] bash 2676 environ_init: 0x6F84B8: OS=Windows_NT
  202    4564 [main] bash 2676 getwinenv: can't set native for PATH= since no
environ yet
  102    4666 [main] bash 2676 mount_info::conv_to_posix_path:
conv_to_posix_path (C:\WINDOWS\system32, keep-rel, no-add-slash)
   80    4746 [main] bash 2676 normalize_win32_path: C:\WINDOWS\system32 =
normalize_win32_path (C:\WINDOWS\system32)
   42    4788 [main] bash 2676 mount_info::conv_to_posix_path:
/win/c/WINDOWS/system32 = conv_to_posix_path (C:\WINDOWS\system32)
   40    4828 [main] bash 2676 mount_info::conv_to_posix_path:
conv_to_posix_path (C:\WINDOWS, keep-rel, no-add-slash)
   36    4864 [main] bash 2676 normalize_win32_path: C:\WINDOWS =
normalize_win32_path (C:\WINDOWS)
   35    4899 [main] bash 2676 mount_info::conv_to_posix_path: /win/c/WINDOWS =
conv_to_posix_path (C:\WINDOWS)
   37    4936 [main] bash 2676 mount_info::conv_to_posix_path:
conv_to_posix_path (C:\WINDOWS\System32\Wbem, keep-rel, no-add-slash)
   35    4971 [main] bash 2676 normalize_win32_path: C:\WINDOWS\System32\Wbem =
normalize_win32_path (C:\WINDOWS\System32\Wbem)
   36    5007 [main] bash 2676 mount_info::conv_to_posix_path:
/win/c/WINDOWS/System32/Wbem = conv_to_posix_path (C:\WINDOWS\System32\Wbem)
   36    5043 [main] bash 2676 mount_info::conv_to_posix_path:
conv_to_posix_path (C:\Program Files\Novell\ZENworks\, keep-rel, add-slash)
   35    5078 [main] bash 2676 normalize_win32_path: C:\Program
Files\Novell\ZENworks\ = normalize_win32_path (C:\Program
Files\Novell\ZENworks\)
   36    5114 [main] bash 2676 mount_info::conv_to_posix_path: /win/c/Program
Files/Novell/ZENworks/ = conv_to_posix_path (C:\Program Files\Novell\ZENworks\)
   37    5151 [main] bash 2676 mount_info::conv_to_posix_path:
conv_to_posix_path (C:\notes, keep-rel, no-add-slash)
   35    5186 [main] bash 2676 normalize_win32_path: C:\notes =
normalize_win32_path (C:\notes)
  124    5310 [main] bash 2676 mount_info::conv_to_posix_path: /win/c/notes =
conv_to_posix_path (C:\notes)
  147    5457 [main] bash 2676 mount_info::conv_to_posix_path:
conv_to_posix_path (C:\cygwin\bin, keep-rel, no-add-slash)
   43    5500 [main] bash 2676 normalize_win32_path: C:\cygwin\bin =
normalize_win32_path (C:\cygwin\bin)
   38    5538 [main] bash 2676 mount_info::conv_to_posix_path: /win/c/cygwin/bin
= conv_to_posix_path (C:\cygwin\bin)
   36    5574 [main] bash 2676 mount_info::conv_to_posix_path:
conv_to_posix_path (C:\Program Files\XPT\, keep-rel, add-slash)
   35    5609 [main] bash 2676 normalize_win32_path: C:\Program Files\XPT\ =
normalize_win32_path (C:\Program Files\XPT\)
   36    5645 [main] bash 2676 mount_info::conv_to_posix_path: /win/c/Program
Files/XPT/ = conv_to_posix_path (C:\Program Files\XPT\)
   36    5681 [main] bash 2676 mount_info::conv_to_posix_path:
conv_to_posix_path (C:\Program Files\Common Files\GTK\2.0\bin, keep-rel,
no-add-slash)
   35    5716 [main] bash 2676 normalize_win32_path: C:\Program Files\Common
Files\GTK\2.0\bin = normalize_win32_path (C:\Program Files\Common
Files\GTK\2.0\bin)
   37    5753 [main] bash 2676 mount_info::conv_to_posix_path: /win/c/Program
Files/Common Files/GTK/2.0/bin = conv_to_posix_path (C:\Program Files\Common
Files\GTK\2.0\bin)
   37    5790 [main] bash 2676 mount_info::conv_to_posix_path:
conv_to_posix_path (C:\WINDOWS\system32\nls, keep-rel, no-add-slash)
   35    5825 [main] bash 2676 normalize_win32_path: C:\WINDOWS\system32\nls =
normalize_win32_path (C:\WINDOWS\system32\nls)
   35    5860 [main] bash 2676 mount_info::conv_to_posix_path:
/win/c/WINDOWS/system32/nls = conv_to_posix_path (C:\WINDOWS\system32\nls)
   36    5896 [main] bash 2676 mount_info::conv_to_posix_path:
conv_to_posix_path (C:\WINDOWS\system32\nls\ENGLISH, keep-rel, no-add-slash)
   36    5932 [main] bash 2676 normalize_win32_path:
C:\WINDOWS\system32\nls\ENGLISH = normalize_win32_path
(C:\WINDOWS\system32\nls\ENGLISH)
   36    5968 [main] bash 2676 mount_info::conv_to_posix_path:
/win/c/WINDOWS/system32/nls/ENGLISH = conv_to_posix_path
(C:\WINDOWS\system32\nls\ENGLISH)
  100    6068 [main] bash 2676 win_env::add_cache: posix
/win/c/WINDOWS/system32:/win/c/WINDOWS:/win/c/WINDOWS/System32/Wbem:/win/c/Program
Files/Novell/ZENworks/:/win/c/notes:/win/c/cygwin/bin:/win/c/Program
Files/XPT/:/win/c/Program Files/Common
Files/GTK/2.0/bin:/win/c/WINDOWS/system32/nls:/win/c/WINDOWS/system32/nls/ENGLISH
  108    6176 [main] bash 2676 win_env::add_cache: native
PATH=C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Program
Files\Novell\ZENworks\;C:\notes;C:\cygwin\bin;C:\Program Files\XPT\;C:\Program
Files\Common
Files\GTK\2.0\bin;C:\WINDOWS\system32\nls;C:\WINDOWS\system32\nls\ENGLISH
   40    6216 [main] bash 2676 posify: env var converted to
PATH=/win/c/WINDOWS/system32:/win/c/WINDOWS:/win/c/WINDOWS/System32/Wbem:/win/c/Program
Files/Novell/ZENworks/:/win/c/notes:/win/c/cygwin/bin:/win/c/Program
Files/XPT/:/win/c/Program Files/Common
Files/GTK/2.0/bin:/win/c/WINDOWS/system32/nls:/win/c/WINDOWS/system32/nls/ENGLISH
   96    6312 [main] bash 2676 environ_init: 0x7087E0:
PATH=/win/c/WINDOWS/system32:/win/c/WINDOWS:/win/c/WINDOWS/System32/Wbem:/win/c/Program
Files/Novell/ZENworks/:/win/c/notes:/win/c/cygwin/bin:/win/c/Program
Files/XPT/:/win/c/Program Files/Common
Files/GTK/2.0/bin:/win/c/WINDOWS/system32/nls:/win/c/WINDOWS/system32/nls/ENGLISH
   80    6392 [main] bash 2676 environ_init: 0x6F84D0:
PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH
   64    6456 [main] bash 2676 environ_init: 0x6F8510:
PROCESSOR_ARCHITECTURE=x86
   63    6519 [main] bash 2676 environ_init: 0x6F8530: PROCESSOR_IDENTIFIER=x86
Family 15 Model 2 Stepping 7, GenuineIntel
   64    6583 [main] bash 2676 environ_init: 0x6F8578: PROCESSOR_LEVEL=15
   62    6645 [main] bash 2676 environ_init: 0x6F8590: PROCESSOR_REVISION=0207
   63    6708 [main] bash 2676 environ_init: 0x708900: PROGRAMFILES=C:\Program
Files
  335    7043 [main] bash 2676 environ_init: 0x6F85B0: PROMPT=$P$G
   83    7126 [main] bash 2676 environ_init: 0x708928:
RFC_INI=C:\WINDOWS\system32\saprfc.ini
   63    7189 [main] bash 2676 environ_init: 0x708958: SAS_HOME=D:\software\SAS
   63    7252 [main] bash 2676 environ_init: 0x708978:
SAS_USER_CONFIG=D:\software\SAS\sas-windows.cfg
   72    7324 [main] bash 2676 environ_init: 0x7089B0:
SIDE_INFO=C:\WINDOWS\system32\sideinfo
   63    7387 [main] bash 2676 environ_init: 0x7089E0: SYSTEMDRIVE=C:
   62    7449 [main] bash 2676 environ_init: 0x7089F8: SYSTEMROOT=C:\WINDOWS
   65    7514 [main] bash 2676 getwinenv: can't set native for TEMP= since no
environ yet
   38    7552 [main] bash 2676 mount_info::conv_to_posix_path:
conv_to_posix_path (C:\DOCUME~1\aschulma\LOCALS~1\Temp, no-keep-rel,
no-add-slash)
   41    7593 [main] bash 2676 normalize_win32_path:
C:\DOCUME~1\aschulma\LOCALS~1\Temp = normalize_win32_path
(C:\DOCUME~1\aschulma\LOCALS~1\Temp)
   39    7632 [main] bash 2676 mount_info::conv_to_posix_path:
/win/c/DOCUME~1/aschulma/LOCALS~1/Temp = conv_to_posix_path
(C:\DOCUME~1\aschulma\LOCALS~1\Temp)
  208    7840 [main] bash 2676 win_env::add_cache: posix
/win/c/DOCUME~1/aschulma/LOCALS~1/Temp
   39    7879 [main] bash 2676 win_env::add_cache: native
TEMP=C:\DOCUME~1\aschulma\LOCALS~1\Temp
   35    7914 [main] bash 2676 posify: env var converted to
TEMP=/win/c/DOCUME~1/aschulma/LOCALS~1/Temp
   91    8005 [main] bash 2676 environ_init: 0x708AA8:
TEMP=/win/c/DOCUME~1/aschulma/LOCALS~1/Temp
   65    8070 [main] bash 2676 getwinenv: can't set native for TMP= since no
environ yet
   35    8105 [main] bash 2676 mount_info::conv_to_posix_path:
conv_to_posix_path (C:\DOCUME~1\aschulma\LOCALS~1\Temp, no-keep-rel,
no-add-slash)
   38    8143 [main] bash 2676 normalize_win32_path:
C:\DOCUME~1\aschulma\LOCALS~1\Temp = normalize_win32_path
(C:\DOCUME~1\aschulma\LOCALS~1\Temp)
   38    8181 [main] bash 2676 mount_info::conv_to_posix_path:
/win/c/DOCUME~1/aschulma/LOCALS~1/Temp = conv_to_posix_path
(C:\DOCUME~1\aschulma\LOCALS~1\Temp)
   92    8273 [main] bash 2676 win_env::add_cache: posix
/win/c/DOCUME~1/aschulma/LOCALS~1/Temp
   41    8314 [main] bash 2676 win_env::add_cache: native
TMP=C:\DOCUME~1\aschulma\LOCALS~1\Temp
   35    8349 [main] bash 2676 posify: env var converted to
TMP=/win/c/DOCUME~1/aschulma/LOCALS~1/Temp
  226    8575 [main] bash 2676 environ_init: 0x708B38:
TMP=/win/c/DOCUME~1/aschulma/LOCALS~1/Temp
   71    8646 [main] bash 2676 environ_init: 0x708A18:
USERDOMAIN=D77E1BASCHULMA1
   63    8709 [main] bash 2676 environ_init: 0x708B68: USERNAME=ASchulma
   63    8772 [main] bash 2676 environ_init: 0x708B80: USERPROFILE=C:\Documents
and Settings\aschulma
   63    8835 [main] bash 2676 environ_init: 0x708BB8: WINDIR=C:\WINDOWS
   82    8917 [main] bash 2676 pinfo_init: Set nice to 0
   36    8953 [main] bash 2676 pinfo_init: pid 2676, pgid 2676
  121    9074 [main] bash 2676 dtable::extend: size 32, fds 0x6120842C
 1034   10108 [main] bash 2676 pwdgrp::load: \etc\passwd curr_lines 1
  271   10379 [main] bash 2676 pwdgrp::load: \etc\passwd load succeeded
  907   11286 [main] bash 2676 pwdgrp::load: \etc\group curr_lines 2
  151   11437 [main] bash 2676 pwdgrp::load: \etc\group load succeeded
  105   11542 [main] bash 2676 cygheap_user::ontherange: what 2, pw 0x708CA0
   43   11585 [main] bash 2676 cygheap_user::ontherange: Set HOME (from
/etc/passwd) to /home/aschulma
  140   11725 [main] bash 2676 normalize_posix_path: src /home/aschulma
   39   11764 [main] bash 2676 normalize_posix_path: /home/aschulma =
normalize_posix_path (/home/aschulma)
   42   11806 [main] bash 2676 mount_info::conv_to_win32_path:
conv_to_win32_path (/home/aschulma)
   45   11851 [main] bash 2676 set_flags: flags: binary (0x2)
   34   11885 [main] bash 2676 mount_info::conv_to_win32_path: src_path
/home/aschulma, dst d:\, flags 0x2, rc 0
  146   12031 [main] bash 2676 symlink_info::check: not a symlink
  266   12297 [main] bash 2676 symlink_info::check: 0 = symlink.check (d:\,
0x2233D0) (0x800002)
   68   12365 [main] bash 2676 path_conv::check: this->path(d:\), has_acls(1)
   81   12446 [main] bash 2676 win_env::add_cache: posix /home/aschulma
   35   12481 [main] bash 2676 win_env::add_cache: native HOME=D:\
   66   12547 [main] bash 2676 normalize_posix_path: src /home/aschulma
   35   12582 [main] bash 2676 normalize_posix_path: /home/aschulma =
normalize_posix_path (/home/aschulma)
   35   12617 [main] bash 2676 mount_info::conv_to_win32_path:
conv_to_win32_path (/home/aschulma)
   41   12658 [main] bash 2676 set_flags: flags: binary (0x2)
   36   12694 [main] bash 2676 mount_info::conv_to_win32_path: src_path
/home/aschulma, dst d:\, flags 0x2, rc 0
  110   12804 [main] bash 2676 symlink_info::check: not a symlink
   59   12863 [main] bash 2676 symlink_info::check: 0 = symlink.check (d:\,
0x223400) (0x800002)
   39   12902 [main] bash 2676 path_conv::check: this->path(d:\), has_acls(1)
   70   12972 [main] bash 2676 win_env::add_cache: posix /home/aschulma
   34   13006 [main] bash 2676 win_env::add_cache: native HOME=D:\
  517   13523 [main] bash 2676 wait_for_sigthread: wait_sig_inited 0x7D8
   78   13601 [main] bash 2676 wait_for_sigthread: process/signal handling
enabled, state 0x1041
  267   13868 [main] bash 2676 tty_list::allocate: console 0x3F0396 associated
with tty0
   96   13964 [main] bash 2676 build_fh_pc: fh 0x612085AC
   45   14009 [main] bash 2676 fhandler_tty_master::init: Creating master for
tty0
  109   14118 [main] bash 2676 build_fh_pc: fh 0x612185B4
 3039   17157 [main] bash 2676 open_shared: name (null), n 0, shared 0x60FE0000
(wanted 0x60FE0000), h 0x7D8
   94   17251 [main] bash 2676 _pinfo::set_ctty: old no ctty
   37   17288 [main] bash 2676 _pinfo::set_ctty: attaching ctty /dev/console sid
2676, pid 2676, pgid 2676, tty->pgid 0, tty->sid 2676
  138   17426 [main] bash 2676 fhandler_base::set_flags: flags 0x10002,
supplied_bin 0x0
   35   17461 [main] bash 2676 fhandler_base::set_flags: O_TEXT/O_BINARY set in
flags 0x10000
   34   17495 [main] bash 2676 fhandler_base::set_flags: filemode set to binary
  622   18117 [main] bash 2676 init_cygheap::manage_console_count:
fhandler_console::open: console_count 1, amount 1, ctty /dev/console,
avoid_freeing_console 0
  108   18225 [main] bash 2676 fhandler_console::open: opened conin$ 0xF,
conout$ 0x13
   48   18273 [main] bash 2676 fhandler_console::output_tcsetattr: 0 = tcsetattr
(,60FE001C) (ENABLE FLAGS 3) (lflag 107 oflag 9)
   55   18328 [main] bash 2676 fhandler_console::input_tcsetattr: 0 = tcsetattr
(,60FE001C) enable flags 0x18, c_lflag 0x0 iflag 0x0
   41   18369 [main] bash 2676 init_cygheap::manage_console_count:
fhandler_tty_master::init_console: console_count 0, amount -1, ctty
/dev/console, avoid_freeing_console 1
   46   18415 [main] bash 2676 fhandler_console::output_tcsetattr: 0 = tcsetattr
(,22CA70) (ENABLE FLAGS 3) (lflag 0 oflag 0)
   55   18470 [main] bash 2676 fhandler_pipe::create_selectable:
CreateNamedPipe: name \\.\pipe\cygwin-tty0-from-master, size 131072
  129   18599 [main] bash 2676 fhandler_pipe::create_selectable: pipe busy,
retrying
   39   18638 [main] bash 2676 seterrno_from_win_error:
/ext/build/netrel/src/cygwin-1.7.0-29/winsup/cygwin/fhandler_tty.cc:1445 windows
error 231
   42   18680 [main] bash 2676 geterrno_from_win_error: windows error 231 ==
errno 16
   35   18715 [main] bash 2676 __set_errno: void seterrno_from_win_error(const
char*, int, DWORD):314 val 16
   45   18760 [main] bash 2676 fhandler_pty_master::setup: tty1629003192 open
failed - failed to create 
  211   18971 [main] bash 2676 c:\cygwin-1.7\bin\bash.exe: *** fatal error -
Can't create master tty
  307   19278 [main] bash 2676 sigproc_terminate: entering
   42   19320 [main] bash 2676 sig_send: sendsig 0x730, pid 2676, signal -42,
its_me 1
   53   19373 [main] bash 2676 sig_send: Not waiting for sigcomplete.  its_me 1
signal -42
   34   19407 [main] bash 2676 sig_send: returning 0x0 from sending signal -42
   34   19441 [main] bash 2676 proc_terminate: nprocs 0
  207   19648 [main] bash 2676 proc_terminate: leaving
   50   19698 [main] bash 2676 __to_clock_t: dwHighDateTime 0, dwLowDateTime
312500
   36   19734 [main] bash 2676 __to_clock_t: total 00000000 0000001F
  453   20187 [main] bash 2676 __to_clock_t: dwHighDateTime 0, dwLowDateTime
156250
   61   20248 [main] bash 2676 __to_clock_t: total 00000000 0000000F
  349   20597 [sig] bash 2676 wait_sig: saw __SIGEXIT
   77   20674 [sig] bash 2676 wait_sig: signal thread exiting
  822   21496 [main] bash 2676 pinfo::exit: Calling ExitProcess n 0x1, exitcode
0x100


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