Mail Archives: cygwin/2002/08/02/06:46:48
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I'm running into an odd bug when I run a large script - it seems that
the output from an external application remains stuck somewhere in a
buffer, and thus data is reordered in a bash script.
<<<<<<< bash script.
func() {
echo "x"
external_prog < input_data.txt
echo "y"
}
func > result.txt
>>>>>>>>>>>>
The output of the script is
<<<
x
y
output_of_the_external_prog
<<<<<
instead of
<<<
x
output_of_the_external_prog
y
<<<
Has anyone seen such a behaviour before? Should I try other cygwin versions?
I've tried without success to create a simple test case - I can only
reproduce it with a ~ 7 kB long script, if I remove (IMHO) unrelated
lines, the bug disappears. The external program generates ~ 6 kb data.
The complete size of result.txt is around 35 kB, i.e. there are 6 blocks
that call the external program, and only in one case the output is
reordered.
If I add "id > /dev/null" after the call of external_prog, then
result.txt is correct.
Has anyone an idea what could cause that behaviour?
I can test patches, or just hints in which part of the cygwin sources I
should start searching for the bug.
--
Manfred
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Cygwin Win95/NT Configuration Diagnostics
Current System Time: Fri Aug 02 12:26:02 2002
Windows 2000 Professional Ver 5.0 Build 2195 Service Pack 2
Path: C:\cygwin\usr\local\bin
C:\cygwin\bin
C:\cygwin\bin
c:\WINNT\system32
c:\WINNT
c:\WINNT\System32\Wbem
c:\Program Files\Ansys Inc\ANSYS60\bin\intel
c:\WINNT\system32
c:\WINNT
c:\WINNT\System32\Wbem
c:\Program Files\Ansys Inc\ANSYS60\bin\intel
c:\tools
c:\vim\vim61\
C:\cygwin\bin
SysDir: C:\WINNT\System32
WinDir: C:\WINNT
HOME = `C:\cygwin\home\Manfred Spraul'
MAKE_MODE = `unix'
PWD = `/cygdrive/c/temp'
USER = `Manfred Spraul'
ALLUSERSPROFILE = `C:\Documents and Settings\All Users'
ANSYS60_DIR = `C:\PROGRAM FILES\ANSYS INC\ANSYS60'
ANSYSLIC_DIR = `C:\PROGRAM FILES\ANSYS INC\SHARED FILES\LICENSING'
ANSYS_SYSDIR = `Intel'
APPDATA = `C:\Documents and Settings\Manfred Spraul\Application Data'
COMMONPROGRAMFILES = `C:\Program Files\Common Files'
COMPUTERNAME = `AB'
COMSPEC = `C:\WINNT\system32\cmd.exe'
EVOLVERPATH = `C:\tools\'
HOMEDRIVE = `C:'
HOMEPATH = `\'
LOGONSERVER = `\\AB'
MANPATH = `:/usr/ssl/man'
MPSTKZ = `8m'
NUMBER_OF_PROCESSORS = `1'
OLDPWD = `/cygdrive/f/CC'
OS2LIBPATH = `C:\WINNT\system32\os2\dll;'
OS = `Windows_NT'
PATHEXT = `.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH'
PROCESSOR_ARCHITECTURE = `x86'
PROCESSOR_IDENTIFIER = `x86 Family 6 Model 11 Stepping 1, GenuineIntel'
PROCESSOR_LEVEL = `6'
PROCESSOR_REVISION = `0b01'
PROGRAMFILES = `C:\Program Files'
PROMPT = `$P$G'
PS1 = `\[\033]0;\w\007
\033[32m\]\u@\h \[\033[33m\w\033[0m\]
$ '
SHLVL = `1'
SYSTEMDRIVE = `C:'
SYSTEMROOT = `C:\WINNT'
TEMP = `c:\TEMP'
TERM = `cygwin'
TMP = `c:\TEMP'
USERDOMAIN = `AB'
USERNAME = `Manfred Spraul'
USERPROFILE = `C:\Documents and Settings\Manfred Spraul'
WINDIR = `C:\WINNT'
_ = `/usr/bin/cygcheck'
HKEY_CURRENT_USER\Software\Cygnus Solutions
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\mounts v2
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\Program Options
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2
(default) = `/cygdrive'
cygdrive flags = 0x00000022
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/
(default) = `C:\cygwin'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/bin
(default) = `C:\cygwin/bin'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/lib
(default) = `C:\cygwin/lib'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/X11R6/lib/X11/fonts
(default) = `C:\cygwin\usr\X11R6\lib\X11\fonts'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\Program Options
a: fd N/A N/A
c: hd FAT32 3992Mb 76% CP UN
e: cd CDFS 173Mb 100% CS UN NEU
f: hd FAT32 8447Mb 24% CP UN
C:\cygwin / system binmode
C:\cygwin/bin /usr/bin system binmode
C:\cygwin/lib /usr/lib system binmode
C:\cygwin\usr\X11R6\lib\X11\fonts /usr/X11R6/lib/X11/fonts system binmode
. /cygdrive user binmode,cygdrive
Found: C:\cygwin\bin\bash.exe
Found: C:\cygwin\bin\cat.exe
Found: C:\cygwin\bin\cpp.exe
Found: C:\cygwin\bin\find.exe
Found: C:\cygwin\bin\gcc.exe
Found: C:\cygwin\bin\gdb.exe
Found: C:\cygwin\bin\ld.exe
Found: C:\cygwin\bin\ls.exe
Found: C:\cygwin\bin\make.exe
Found: C:\cygwin\bin\sh.exe
19k 2002/02/20 C:\cygwin\bin\cyggdbm.dll - os=4.0 img=1.0 sys=4.0
"cyggdbm.dll" v0.0 ts=2002/2/20 4:05
929k 2002/06/24 C:\cygwin\bin\cygiconv-2.dll - os=4.0 img=1.0 sys=4.0
"cygiconv-2.dll" v0.0 ts=2002/6/24 20:24
21k 2001/06/20 C:\cygwin\bin\cygintl.dll - os=4.0 img=1.0 sys=4.0
"cygintl.dll" v0.0 ts=2001/6/20 19:09
22k 2001/12/13 C:\cygwin\bin\cygintl-1.dll - os=4.0 img=1.0 sys=4.0
"cygintl-1.dll" v0.0 ts=2001/12/13 10:28
23k 2002/06/24 C:\cygwin\bin\cygintl-2.dll - os=4.0 img=1.0 sys=4.0
"cygintl-2.dll" v0.0 ts=2002/6/24 6:54
45k 2001/04/25 C:\cygwin\bin\cygform5.dll - os=4.0 img=1.0 sys=4.0
"cygform5.dll" v0.0 ts=2001/4/25 7:28
26k 2001/04/25 C:\cygwin\bin\cygmenu5.dll - os=4.0 img=1.0 sys=4.0
"cygmenu5.dll" v0.0 ts=2001/4/25 7:27
156k 2001/04/25 C:\cygwin\bin\cygncurses++5.dll - os=4.0 img=1.0 sys=4.0
"cygncurses++5.dll" v0.0 ts=2001/4/25 7:29
226k 2001/04/25 C:\cygwin\bin\cygncurses5.dll - os=4.0 img=1.0 sys=4.0
"cygncurses5.dll" v0.0 ts=2001/4/25 7:17
15k 2001/04/25 C:\cygwin\bin\cygpanel5.dll - os=4.0 img=1.0 sys=4.0
"cygpanel5.dll" v0.0 ts=2001/4/25 7:27
35k 2002/01/09 C:\cygwin\bin\cygform6.dll - os=4.0 img=1.0 sys=4.0
"cygform6.dll" v0.0 ts=2002/1/9 7:03
20k 2002/01/09 C:\cygwin\bin\cygmenu6.dll - os=4.0 img=1.0 sys=4.0
"cygmenu6.dll" v0.0 ts=2002/1/9 7:03
175k 2002/01/09 C:\cygwin\bin\cygncurses++6.dll - os=4.0 img=1.0 sys=4.0
"cygncurses++6.dll" v0.0 ts=2002/1/9 7:03
202k 2002/01/09 C:\cygwin\bin\cygncurses6.dll - os=4.0 img=1.0 sys=4.0
"cygncurses6.dll" v0.0 ts=2002/1/9 7:03
12k 2002/01/09 C:\cygwin\bin\cygpanel6.dll - os=4.0 img=1.0 sys=4.0
"cygpanel6.dll" v0.0 ts=2002/1/9 7:03
17k 2001/06/28 C:\cygwin\bin\cyghistory4.dll - os=4.0 img=1.0 sys=4.0
"cyghistory4.dll" v0.0 ts=2001/1/7 5:34
108k 2001/06/28 C:\cygwin\bin\cygreadline4.dll - os=4.0 img=1.0 sys=4.0
"cygreadline4.dll" v0.0 ts=2001/1/7 5:34
40k 2001/11/21 C:\cygwin\bin\cygpcre.dll - os=4.0 img=1.0 sys=4.0
"cygpcre.dll" v0.0 ts=2001/11/21 23:15
39k 2001/11/21 C:\cygwin\bin\cygpcreposix.dll - os=4.0 img=1.0 sys=4.0
"cygpcreposix.dll" v0.0 ts=2001/11/21 23:15
50k 2002/03/12 C:\cygwin\bin\cygz.dll - os=4.0 img=1.0 sys=4.0
"cygz.dll" v0.0 ts=2002/3/12 5:38
58k 2002/05/07 C:\cygwin\bin\cygbz2-1.dll - os=4.0 img=1.0 sys=4.0
"cygbz2-1.dll" v0.0 ts=2002/5/7 8:33
81k 2001/10/20 C:\cygwin\bin\cygitcl30.dll - os=4.0 img=1.0 sys=4.0
"cygitcl30.dll" v0.0 ts=2001/10/20 2:25
35k 2001/10/20 C:\cygwin\bin\cygitk30.dll - os=4.0 img=1.0 sys=4.0
"cygitk30.dll" v0.0 ts=2001/10/20 2:25
390k 2001/10/20 C:\cygwin\bin\cygtcl80.dll - os=4.0 img=1.0 sys=4.0
"cygtcl80.dll" v0.0 ts=2001/10/20 2:24
5k 2001/10/20 C:\cygwin\bin\cygtclpip80.dll - os=4.0 img=1.0 sys=4.0
10k 2001/10/20 C:\cygwin\bin\cygtclreg80.dll - os=4.0 img=1.0 sys=4.0
"cygtclreg80.dll" v0.0 ts=2001/10/20 2:24
623k 2001/10/20 C:\cygwin\bin\cygtk80.dll - os=4.0 img=1.0 sys=4.0
"cygtk80.dll" v0.0 ts=2001/10/20 2:25
621k 2002/05/17 C:\cygwin\bin\cygcrypto.dll - os=4.0 img=1.0 sys=4.0
"cygcrypto.dll" v0.0 ts=2002/5/17 14:24
156k 2002/05/17 C:\cygwin\bin\cygssl.dll - os=4.0 img=1.0 sys=4.0
"cygssl.dll" v0.0 ts=2002/5/17 14:24
20k 2002/07/17 C:\cygwin\bin\cyghistory5.dll - os=4.0 img=1.0 sys=4.0
"cyghistory5.dll" v0.0 ts=2002/7/17 23:18
127k 2002/07/17 C:\cygwin\bin\cygreadline5.dll - os=4.0 img=1.0 sys=4.0
"cygreadline5.dll" v0.0 ts=2002/7/17 23:18
883k 2002/07/06 C:\cygwin\bin\cygwin1.dll - os=4.0 img=1.0 sys=4.0
"cygwin1.dll" v0.0 ts=2002/7/6 8:16
Cygwin DLL version info:
DLL version: 1.3.12
DLL epoch: 19
DLL bad signal mask: 19005
DLL old termios: 5
DLL malloc env: 28
API major: 0
API minor: 54
Shared data: 3
DLL identifier: cygwin1
Mount registry: 2
Cygnus registry name: Cygnus Solutions
Cygwin registry name: Cygwin
Program options name: Program Options
Cygwin mount registry name: mounts v2
Cygdrive flags: cygdrive flags
Cygdrive prefix: cygdrive prefix
Cygdrive default prefix:
Build date: Sat Jul 6 02:16:58 EDT 2002
CVS tag: cygwin-1-3-12-1
Shared id: cygwin1S3
Cygwin Package Information
Last downloaded files to: c:\cygpkgs
Last downloaded files from: ftp://ftp.inf.tu-dresden.de/software/windows/cygwin32
Package Version
XFree86-base 4.2.0-1
XFree86-bin 4.2.0-1
XFree86-etc 4.2.0-1
XFree86-fenc 4.2.0-2
XFree86-fnts 4.2.0-2
XFree86-lib 4.2.0-3
XFree86-startup-scripts4.2.0-2
XFree86-xserv 4.2.0-10
_update-info-dir 00037-1
ash 20020131-1
bash 2.05b-1
binutils 20020706-2
bzip2 1.0.2-2
crypt 1.0-1
cvs 1.11.0-1
cygwin 1.3.12-2
diff 1.0-1
diffutils 2.8.1-1
fileutils 4.1-1
findutils 4.1.7-4
gawk 3.0.4-1
gcc 3.1.1-4
gdb 20010428-3
gdbm 1.8.0-4
gettext 0.11.2-2
grep 2.5-1
groff 1.17.2-1
gzip 1.3.3-3
less 374-1
libbz2_1 1.0.2-2
libiconv2 1.8-2
libintl 0.10.38-3
libintl1 0.10.40-1
libintl2 0.11.2-2
libncurses5 5.2-1
libncurses6 5.2-8
libreadline4 4.1-2
libreadline5 4.3-1
login 1.4-3
make 3.79.1-7
man 1.5g-2
mingw-runtime 2.0-2
ncurses 5.2-8
openssh 3.4p1-4
openssl 0.9.6d-1
pcre 3.7-1
readline 4.3-1
sed 3.02-1
sh-utils 2.0-2
tar 1.13.19-1
termcap 20020403-1
terminfo 5.2-3
texinfo 4.2-3
textutils 2.0.21-1
vim 6.1-2
w32api 1.5-1
which 1.5-1
zlib 1.1.4-1
Use -h to see help about each section
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