I've run into problems with shell scripts hanging during execution for no
apparent reason. I've narrowed down my test case to two simple shell scripts.
To reproduce the problem, I ran three instances of the "top.sh" script included
here, and after a bit (30 minutes to an hour or so) I'll see that one or two of
the shells have just stopped in their tracks.
Here are the scripts:
----<top.sh>----
dir=$1
loops=$2
for loop in `seq 1 $loops`
do
x=`./subtest.sh $dir`
date
echo loop $loop
done
----<subtest.sh>----
for j in `ls $1`
do
if [ `echo $j | egrep -i "A|B" | wc -l` -ne 0 ]
then
echo $j
fi
done
echo subtest1 done >&2
--------
I then ran three bash shells. The commands I ran, simultaneously, were:
1) ./top.sh C:/ 600
2) ./top.sh C:/windows 300
3) ./top.sh C:/windows/system32 100
These ran for about 45 minutes, and then I noticed that two of them (1 and 2
above) had stopped printing any output. The third was still moving along. The
third completed, but the first two never progressed any further. I used
Process Explorer from ntinternals.com, and saw that the two hung shells were
not using any CPU, and did not have any child processes created; they were
simply stopped. If a process dump would be helpful, I can generate one with
Windbg or gdb.
Here's my cygcheck output:
Cygwin Configuration Diagnostics
Current System Time: Wed Feb 01 15:07:43 2006
Windows 2003 Server Ver 5.2 Build 3790 Service Pack 1
Path: C:\WINDOWS\system32
C:\WINDOWS
C:\WINDOWS\System32\Wbem
C:\Program Files\Microsoft SQL Server\80\Tools\BINN
C:\Program Files\SUperior SU
Output from C:\cygwin\bin\id.exe (nontsec)
UID: 500(Administrator) GID: 513(None)
0(root) 513(None) 544(Administrators)
545(Users)
Output from C:\cygwin\bin\id.exe (ntsec)
UID: 500(Administrator) GID: 513(None)
0(root) 513(None) 544(Administrators)
545(Users)
SysDir: C:\WINDOWS\system32
WinDir: C:\Documents and Settings\Administrator\WINDOWS
Here's some environment variables that may affect cygwin:
PWD = '/usr/bin'
HOME = '/home/Administrator'
Here's the rest of your environment variables:
HOMEPATH = '\Documents and Settings\Administrator'
APPDATA = 'C:\Documents and Settings\Administrator\Application Data'
TERM = 'cygwin'
PROCESSOR_IDENTIFIER = 'x86 Family 15 Model 2 Stepping 7, GenuineIntel'
WINDIR = 'C:\WINDOWS'
TMPDIR = '/cygdrive/c/Documents and Settings/Administrator/Local Settings/Temp'
USERDOMAIN = 'EAGLE'
OS = 'Windows_NT'
ALLUSERSPROFILE = 'C:\Documents and Settings\All Users'
TEMP = '/cygdrive/c/DOCUME~1/ADMINI~1/LOCALS~1/Temp'
COMMONPROGRAMFILES = 'C:\Program Files\Common Files'
USERNAME = 'Administrator'
CLUSTERLOG = 'C:\WINDOWS\Cluster\cluster.log'
PROCESSOR_LEVEL = '15'
FP_NO_HOST_CHECK = 'NO'
SYSTEMDRIVE = 'C:'
USERPROFILE = 'C:\Documents and Settings\Administrator'
LOGONSERVER = '\\EAGLE'
PROCESSOR_ARCHITECTURE = 'x86'
!C: = 'C:\cygwin\bin'
EXTMIRRBASE = 'C:\LKDR'
SHLVL = '1'
PATHEXT = '.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH'
HOMEDRIVE = 'C:'
PROMPT = '$P$G'
COMSPEC = 'C:\WINDOWS\system32\cmd.exe'
TMP = '/cygdrive/c/DOCUME~1/ADMINI~1/LOCALS~1/Temp'
SYSTEMROOT = 'C:\WINDOWS'
PROCESSOR_REVISION = '0207'
PROGRAMFILES = 'C:\Program Files'
NUMBER_OF_PROCESSORS = '2'
SESSIONNAME = 'Console'
COMPUTERNAME = 'EAGLE'
!EXITCODE = '00000001'
_ = './cygcheck'
POSIXLY_CORRECT = '1'
Scanning registry for keys with 'Cygnus' in them...
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_CURRENT_USER\Software\SteelEye\LifeKeeper\Cygnus Solutions
HKEY_CURRENT_USER\Software\SteelEye\LifeKeeper\Cygnus Solutions\Cygwin
HKEY_CURRENT_USER\Software\SteelEye\LifeKeeper\Cygnus Solutions\Cygwin\mounts v2
HKEY_CURRENT_USER\Software\SteelEye\LifeKeeper\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\Program Options
HKEY_LOCAL_MACHINE\SOFTWARE\SteelEye\LifeKeeper\Cygnus Solutions
HKEY_LOCAL_MACHINE\SOFTWARE\SteelEye\LifeKeeper\Cygnus Solutions\Cygwin
HKEY_LOCAL_MACHINE\SOFTWARE\SteelEye\LifeKeeper\Cygnus Solutions\Cygwin\mounts
v2
(default) = '/cygdrive'
cygdrive flags = 0x00000022
HKEY_LOCAL_MACHINE\SOFTWARE\SteelEye\LifeKeeper\Cygnus Solutions\Cygwin\mounts
v2\/
(default) = 0x0000000a
native = 'C:\LK\cygwin'
HKEY_LOCAL_MACHINE\SOFTWARE\SteelEye\LifeKeeper\Cygnus Solutions\Cygwin\mounts
v2\/bin
(default) = 0x0000000a
native = 'C:\LK\bin'
HKEY_LOCAL_MACHINE\SOFTWARE\SteelEye\LifeKeeper\Cygnus Solutions\Cygwin\mounts
v2\/usr/bin
(default) = 0x0000000a
native = 'C:\LK\bin'
HKEY_LOCAL_MACHINE\SOFTWARE\SteelEye\LifeKeeper\Cygnus Solutions\Cygwin\mounts
v2\/usr/lib
(default) = 0x0000000a
native = 'C:\LK\cygwin\lib'
HKEY_LOCAL_MACHINE\SOFTWARE\SteelEye\LifeKeeper\Cygnus Solutions\Cygwin\Program
Options
Listing available drives...
Drv Type Size Used Flags Name
a: fd N/A N/A
c: hd NTFS 8189Mb 79% CP CS UN PA FC
j: cd N/A N/A
k: hd N/A N/A
m: hd N/A N/A
q: hd N/A N/A
r: hd N/A N/A
s: hd N/A N/A
t: hd N/A N/A
u: hd N/A N/A
v: hd N/A N/A
w: hd N/A N/A
x: hd N/A N/A
y: hd N/A N/A
z: hd N/A N/A
fd = floppy, hd = hard drive, cd = CD-ROM
net= Network Share, ram= RAM drive, unk= Unknown
CP = Case Preserving, CS = Case Sensitive, UN = Unicode
PA = Persistent ACLS, FC = File Compression, VC = Volume Compression
Mount entries: these map POSIX directories to your NT drives.
-NT- -POSIX- -Type- -Flags-
C:\cygwin / system binmode
C:\cygwin/bin /usr/bin system binmode
C:\cygwin/lib /usr/lib system binmode
. /cygdrive system binmode,cygdrive
Looking to see where common programs can be found, if at all...
Not Found: awk
Not Found: bash
Not Found: cat
Not Found: cp
Not Found: cpp (good!)
Not Found: crontab
Not Found: find
Not Found: gcc
Not Found: gdb
Not Found: grep
Not Found: kill
Not Found: ld
Not Found: ls
Not Found: make
Not Found: mv
Not Found: patch
Not Found: perl
Not Found: rm
Not Found: sed
Not Found: ssh
Not Found: sh
Not Found: tar
Not Found: test
Not Found: vi
Not Found: vim
Looking for various Cygwin DLLs... (-v gives version info)
56k 2005/07/09 C:\cygwin\bin\cygbz2-1.dll - os=4.0 img=1.0 sys=4.0
"cygbz2-1.dll" v0.0 ts=2005/7/9 1:09
7k 2005/11/20 C:\cygwin\bin\cygcharset-1.dll - os=4.0 img=1.0 sys=4.0
"cygcharset-1.dll" v0.0 ts=2005/11/19 21:24
7k 2003/10/19 C:\cygwin\bin\cygcrypt-0.dll - os=4.0 img=1.0 sys=4.0
"cygcrypt-0.dll" v0.0 ts=2003/10/19 3:57
40k 2005/09/29 C:\cygwin\bin\cygform-8.dll - os=4.0 img=1.0 sys=4.0
"cygform-8.dll" v0.0 ts=2005/9/28 22:15
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 1:28
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 1:03
48k 2003/08/09 C:\cygwin\bin\cygform7.dll - os=4.0 img=1.0 sys=4.0
"cygform7.dll" v0.0 ts=2003/8/9 5:25
28k 2003/07/20 C:\cygwin\bin\cyggdbm-3.dll - os=4.0 img=1.0 sys=4.0
"cyggdbm-3.dll" v0.0 ts=2003/7/20 3:58
30k 2003/08/11 C:\cygwin\bin\cyggdbm-4.dll - os=4.0 img=1.0 sys=4.0
"cyggdbm-4.dll" v0.0 ts=2003/8/10 22:12
19k 2003/03/22 C:\cygwin\bin\cyggdbm.dll - os=4.0 img=1.0 sys=4.0
"cyggdbm.dll" v0.0 ts=2002/2/19 22:05
15k 2003/07/20 C:\cygwin\bin\cyggdbm_compat-3.dll - os=4.0 img=1.0 sys=4.0
"cyggdbm_compat-3.dll" v0.0 ts=2003/7/20 4:00
15k 2003/08/11 C:\cygwin\bin\cyggdbm_compat-4.dll - os=4.0 img=1.0 sys=4.0
"cyggdbm_compat-4.dll" v0.0 ts=2003/8/10 22:13
17k 2001/06/28 C:\cygwin\bin\cyghistory4.dll - os=4.0 img=1.0 sys=4.0
"cyghistory4.dll" v0.0 ts=2001/1/6 23:34
29k 2003/08/10 C:\cygwin\bin\cyghistory5.dll - os=4.0 img=1.0 sys=4.0
"cyghistory5.dll" v0.0 ts=2003/8/10 19:16
24k 2006/01/28 C:\cygwin\bin\cyghistory6.dll - os=4.0 img=1.0 sys=4.0
"cyghistory6.dll" v0.0 ts=2006/1/27 22:06
947k 2005/11/20 C:\cygwin\bin\cygiconv-2.dll - os=4.0 img=1.0 sys=4.0
"cygiconv-2.dll" v0.0 ts=2005/11/19 21:24
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 4:28
37k 2003/08/10 C:\cygwin\bin\cygintl-2.dll - os=4.0 img=1.0 sys=4.0
"cygintl-2.dll" v0.0 ts=2003/8/10 17:50
31k 2005/11/20 C:\cygwin\bin\cygintl-3.dll - os=4.0 img=1.0 sys=4.0
"cygintl-3.dll" v0.0 ts=2005/11/19 21:04
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 13:09
21k 2005/09/29 C:\cygwin\bin\cygmenu-8.dll - os=4.0 img=1.0 sys=4.0
"cygmenu-8.dll" v0.0 ts=2005/9/28 22:15
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 1:27
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 1:03
29k 2003/08/09 C:\cygwin\bin\cygmenu7.dll - os=4.0 img=1.0 sys=4.0
"cygmenu7.dll" v0.0 ts=2003/8/9 5:25
67k 2005/09/29 C:\cygwin\bin\cygncurses++-8.dll - os=4.0 img=1.0 sys=4.0
"cygncurses++-8.dll" v0.0 ts=2005/9/28 22:16
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 1:29
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 1:03
226k 2005/09/29 C:\cygwin\bin\cygncurses-8.dll - os=4.0 img=1.0 sys=4.0
"cygncurses-8.dll" v0.0 ts=2005/9/28 22:02
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 1:17
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 1:03
224k 2003/08/09 C:\cygwin\bin\cygncurses7.dll - os=4.0 img=1.0 sys=4.0
"cygncurses7.dll" v0.0 ts=2003/8/9 5:24
11k 2005/09/29 C:\cygwin\bin\cygpanel-8.dll - os=4.0 img=1.0 sys=4.0
"cygpanel-8.dll" v0.0 ts=2005/9/28 22:15
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 1:27
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 1:03
19k 2003/08/09 C:\cygwin\bin\cygpanel7.dll - os=4.0 img=1.0 sys=4.0
"cygpanel7.dll" v0.0 ts=2003/8/9 5:24
176k 2005/09/06 C:\cygwin\bin\cygpcre-0.dll - os=4.0 img=1.0 sys=4.0
"cygpcre-0.dll" v0.0 ts=2005/9/6 16:49
299k 2005/09/06 C:\cygwin\bin\cygpcrecpp-0.dll - os=4.0 img=1.0 sys=4.0
"cygpcrecpp-0.dll" v0.0 ts=2005/9/6 17:26
6k 2005/09/06 C:\cygwin\bin\cygpcreposix-0.dll - os=4.0 img=1.0 sys=4.0
"cygpcreposix-0.dll" v0.0 ts=2005/9/6 17:26
22k 2002/06/09 C:\cygwin\bin\cygpopt-0.dll - os=4.0 img=1.0 sys=4.0
"cygpopt-0.dll" v0.0 ts=2002/6/9 1:45
108k 2001/06/28 C:\cygwin\bin\cygreadline4.dll - os=4.0 img=1.0 sys=4.0
"cygreadline4.dll" v0.0 ts=2001/1/6 23:34
148k 2003/08/10 C:\cygwin\bin\cygreadline5.dll - os=4.0 img=1.0 sys=4.0
"cygreadline5.dll" v0.0 ts=2003/8/10 19:16
152k 2006/01/28 C:\cygwin\bin\cygreadline6.dll - os=4.0 img=1.0 sys=4.0
"cygreadline6.dll" v0.0 ts=2006/1/27 22:06
65k 2005/08/23 C:\cygwin\bin\cygz.dll - os=4.0 img=1.0 sys=4.0
"cygz.dll" v0.0 ts=2005/8/22 22:03
1763k 2006/01/20 C:\cygwin\bin\cygwin1.dll - os=4.0 img=1.0 sys=4.0
"cygwin1.dll" v0.0 ts=2006/1/20 13:28
Cygwin DLL version info:
DLL version: 1.5.19
DLL epoch: 19
DLL bad signal mask: 19005
DLL old termios: 5
DLL malloc env: 28
API major: 0
API minor: 150
Shared data: 4
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: Fri Jan 20 13:28:43 EST 2006
CVS tag: cr-0x5ef
Shared id: cygwin1S4
Checking for any Cygwin services...
Can't find the cygrunsrv utility, skipping services check.
Cygwin Package Information
Last downloaded files to: C:\cygwinpkg
Last downloaded files from: ftp://ftp.cise.ufl.edu/pub/mirrors/cygwin
Package Version
_update-info-dir 00352-1
alternatives 1.3.20a-2
ash 20040127-3
base-files 3.7-1
base-passwd 2.2-1
bash 3.0-14
bzip2 1.0.3-1
coreutils 5.93-3
crypt 1.1-1
cygutils 1.2.9-1
cygwin 1.5.19-4
cygwin-doc 1.4-3
diffutils 2.8.7-1
editrights 1.01-1
findutils 4.2.27-1
gawk 3.1.5-2
gdb 20041228-3
gdbm 1.8.3-7
grep 2.5.1a-2
groff 1.18.1-2
gzip 1.3.5-1
less 381-1
libbz2_1 1.0.3-1
libcharset1 1.9.2-2
libgdbm 1.8.0-5
libgdbm-devel 1.8.3-7
libgdbm3 1.8.3-3
libgdbm4 1.8.3-7
libiconv 1.9.2-2
libiconv2 1.9.2-2
libintl 0.10.38-3
libintl1 0.10.40-1
libintl2 0.12.1-3
libintl3 0.14.5-1
libncurses5 5.2-1
libncurses6 5.2-8
libncurses7 5.3-4
libncurses8 5.4-4
libpcre0 6.3-1
libpopt0 1.6.4-4
libreadline4 4.1-2
libreadline5 4.3-5
libreadline6 5.1-2
login 1.9-7
man 1.5p-1
mktemp 1.5-3
ncurses 5.4-4
pdksh 5.2.14-3
run 1.1.6-1
sed 4.1.4-1
tar 1.15.1-3
tcltk 20030901-1
termcap 20050421-1
terminfo 5.4_20041009-1
texinfo 4.8-1
vim 6.4-4
which 1.7-1
zlib 1.2.3-1
Thanks for any help you can provide on this!
-----
Ernie Coskrey SteelEye Technology, Inc. 803-461-3875
--
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Problem reports: http://cygwin.com/problems.html
Documentation: http://cygwin.com/docs.html
FAQ: http://cygwin.com/faq/
