If I run "make -j6" or something, on our large corporate build environment, then sometimes, one or more make instances will end up freezing. (They spin in place, using up as much cpu as they can, forever). ^C stops them. I can't find any easy way to produce this with smaller examples (and it doesn't even always happen on my big builds). It seems to happen about 75% of the time with my builds, so I don't have any real problem reproducing it.
I tried attaching to the process with gdb, but I didn't really know what to do after I was attached:
-------------------------------------
(gdb) attach 524
Attaching to process 524
[Switching to thread 524.0x38c]
(gdb) bt
#0 0x77f75a59 in ntdll!DbgUiConnectToDbg () from /c/WINDOWS/System32/ntdll.dll
#1 0x77f5f31f in ntdll!KiUserCallbackDispatcher ()
from /c/WINDOWS/System32/ntdll.dll
#2 0x00000005 in ?? ()
#3 0x00000004 in ?? ()
#4 0x00000001 in ?? ()
#5 0x003fffd0 in ?? ()
#6 0x85005480 in ?? ()
#7 0xffffffff in ?? ()
#8 0x77fa88f0 in wcstombs () from /c/WINDOWS/System32/ntdll.dll
(gdb) p/x *(int *)$ebp
$1 = 0x0
(gdb) info thread
* 4 thread 524.0x38c 0x77f75a59 in ntdll!DbgUiConnectToDbg ()
from /c/WINDOWS/System32/ntdll.dll
3 thread 524.0x270 0x7ffe0304 in ?? ()
2 thread 524.0xc14 0x7ffe0304 in ?? ()
1 thread 524.0xff0 0x00419015 in ?? ()
(gdb) quit
The program is running. Quit anyway (and detach it)? (y or n) ye
Segmentation fault (core dumped)
[EMAIL PROTECTED] ~ $ ------------------------
Also, gdb crashed as you can see. Gdb seems to crash if i attach to a process, then try to quit. I ran gdb under gdb, but it didn't produce a usefull traceback:
(gdb) q
Program received signal SIGSEGV, Segmentation fault. 0x0042454c in ?? () (gdb) bt #0 0x0042454c in ?? () #1 0x00000ec0 in ?? ()
I understand that I haven't provided much usefull info, I am willing to try other things apon suggestion.
Cygwin Win95/NT Configuration Diagnostics Current System Time: Tue Jan 20 12:04:02 2004
Windows XP Professional Ver 5.1 Build 2600 Service Pack 1
Path: C:\cygwin\usr\local\bin
C:\cygwin\bin
C:\cygwin\bin
C:\cygwin\usr\X11R6\bin
C:\WINDOWS\system32
C:\WINDOWS
C:\WINDOWS\System32\Wbem
C:\Program
Output from C:\cygwin\bin\id.exe (nontsec)
UID: 11643(rcampbell) GID: 10513(Domain Users)
10513(Domain Users)
Output from C:\cygwin\bin\id.exe (ntsec)
UID: 11643(rcampbell) GID: 10513(Domain Users)
544(Administrators) 545(Users)
10513(Domain Users)
SysDir: C:\WINDOWS\System32
WinDir: C:\WINDOWS
HOME = `C:\cygwin\home\rcampbell'
MAKE_MODE = `unix'
PWD = `/tmp'
USER = `rcampbell'
ALLUSERSPROFILE = `C:\Documents and Settings\All Users'
APPDATA = `C:\Documents and Settings\rcampbell\Application Data'
CLIENTNAME = `Console'
COLORFGBG = `0;default;15'
COLORTERM = `rxvt-xpm'
COMMONPROGRAMFILES = `C:\Program Files\Common Files'
COMPUTERNAME = `DESK-RCAMPBELL'
COMSPEC = `C:\WINDOWS\system32\cmd.exe'
COSMIC = `t'
CVS_RSH = `/bin/ssh'
DISPLAY = `:0'
HOMEDRIVE = `C:'
HOMEPATH = `\Documents and Settings\rcampbell'
HOSTNAME = `desk-rcampbell'
INFOPATH =
`/usr/local/info:/usr/info:/usr/share/info:/usr/autotool/devel/info:/usr/autotool/stable/info:'
LOGONSERVER = `\\EXCHANGE'
MANPATH =
`/usr/local/man:/usr/man:/usr/share/man:/usr/autotool/devel/man::/usr/ssl/man'
NUMBER_OF_PROCESSORS = `2'
OLDPWD = `/c/base2/node'
OS = `Windows_NT'
P4CONFIG = `.p4config'
PATHEXT = `.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH'
PROCESSOR_ARCHITECTURE = `x86'
PROCESSOR_IDENTIFIER = `x86 Family 15 Model 2 Stepping 9, GenuineIntel'
PROCESSOR_LEVEL = `15'
PROCESSOR_REVISION = `0209'
PROGRAMFILES = `C:\Program Files'
PS1 = `\[\033]0;\w\007
[EMAIL PROTECTED] \[\033[33m\w\033[0m\]
$ '
SESSIONNAME = `Console'
SHLVL = `1'
SYSTEMDRIVE = `C:'
SYSTEMROOT = `C:\WINDOWS'
TEMP = `C:\DOCUME~1\RCAMPB~1\LOCALS~1\Temp'
TERM = `xterm'
TMP = `C:\DOCUME~1\RCAMPB~1\LOCALS~1\Temp'
TROPIC_UNIQUE_ID = `150'
USERDNSDOMAIN = `TROPICNETWORKS.COM'
USERDOMAIN = `TROPICNETWORKS'
USERNAME = `rcampbell'
USERPROFILE = `C:\Documents and Settings\rcampbell'
WINDIR = `C:\WINDOWS'
WINDOWID = `168127776'
_ = `/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\/c
(default) = `C:'
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
a: fd N/A N/A
c: hd NTFS 39260Mb 45% CP CS UN PA FC
d: cd N/A N/A
C:\cygwin / system binmode
C: /c system binmode
C:\cygwin/bin /usr/bin system binmode
C:\cygwin/lib /usr/lib system binmode
. /cygdrive system binmode,cygdrive
Found: C:\cygwin\bin\awk.exe
Found: C:\cygwin\bin\bash.exe
Found: C:\cygwin\bin\cat.exe
Found: C:\cygwin\bin\cp.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\grep.exe
Found: C:\cygwin\bin\ld.exe
Found: C:\cygwin\bin\ls.exe
Found: C:\cygwin\bin\make.exe
Found: C:\cygwin\bin\mv.exe
Found: C:\cygwin\bin\rm.exe
Found: C:\cygwin\bin\sed.exe
Found: C:\cygwin\bin\sh.exe
Found: C:\cygwin\bin\tar.exe
61k 2003/08/09 C:\cygwin\bin\cygbz2-1.dll - os=4.0 img=1.0 sys=4.0
"cygbz2-1.dll" v0.0 ts=2003/8/9 2:35
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
842k 2003/09/30 C:\cygwin\bin\cygcrypto-0.9.7.dll - os=4.0 img=1.0 sys=4.0
"cygcrypto-0.9.7.dll" v0.0 ts=2003/9/30 12:49
380k 2002/07/24 C:\cygwin\bin\cygdb-3.1.dll - os=4.0 img=1.0 sys=4.0
"cygdb-3.1.dll" v0.0 ts=2002/7/24 12:24
831k 2003/09/20 C:\cygwin\bin\cygdb-4.1.dll - os=4.0 img=1.0 sys=4.0
"cygdb-4.1.dll" v0.0 ts=2003/9/20 17:51
487k 2002/07/24 C:\cygwin\bin\cygdb_cxx-3.1.dll - os=4.0 img=1.0 sys=4.0
"cygdb_cxx-3.1.dll" v0.0 ts=2002/7/24 12:25
1080k 2003/09/20 C:\cygwin\bin\cygdb_cxx-4.1.dll - os=4.0 img=1.0 sys=4.0
"cygdb_cxx-4.1.dll" v0.0 ts=2003/9/20 17:53
155k 2004/01/07 C:\cygwin\bin\cygexpat-0.dll - os=4.0 img=1.0 sys=4.0
"cygexpat-0.dll" v0.0 ts=2004/1/7 11:14
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
69k 2003/08/10 C:\cygwin\bin\cyggettextlib-0-12-1.dll - os=4.0 img=1.0 sys=4.0
"cyggettextlib-0-12-1.dll" v0.0 ts=2003/8/10 18:10
12k 2003/08/10 C:\cygwin\bin\cyggettextpo-0.dll - os=4.0 img=1.0 sys=4.0
"cyggettextpo-0.dll" v0.0 ts=2003/8/10 18:11
134k 2003/08/10 C:\cygwin\bin\cyggettextsrc-0-12-1.dll - os=4.0 img=1.0 sys=4.0
"cyggettextsrc-0-12-1.dll" v0.0 ts=2003/8/10 18:10
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
958k 2003/08/10 C:\cygwin\bin\cygiconv-2.dll - os=4.0 img=1.0 sys=4.0
"cygiconv-2.dll" v0.0 ts=2003/8/10 16:57
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
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
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 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
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
62k 2003/12/11 C:\cygwin\bin\cygpcre-0.dll - os=4.0 img=1.0 sys=4.0
"cygpcre-0.dll" v0.0 ts=2003/12/11 12:01
63k 2003/04/11 C:\cygwin\bin\cygpcre.dll - os=4.0 img=1.0 sys=4.0
"cygpcre.dll" v0.0 ts=2003/4/11 4:31
9k 2003/12/11 C:\cygwin\bin\cygpcreposix-0.dll - os=4.0 img=1.0 sys=4.0
"cygpcreposix-0.dll" v0.0 ts=2003/12/11 12:01
61k 2003/04/11 C:\cygwin\bin\cygpcreposix.dll - os=4.0 img=1.0 sys=4.0
"cygpcreposix.dll" v0.0 ts=2003/4/11 4:31
1049k 2003/11/07 C:\cygwin\bin\cygperl5_8_2.dll - os=4.0 img=1.0 sys=4.0
"cygperl5_8_2.dll" v0.0 ts=2003/11/7 6:08
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
171k 2003/09/30 C:\cygwin\bin\cygssl-0.9.7.dll - os=4.0 img=1.0 sys=4.0
"cygssl-0.9.7.dll" v0.0 ts=2003/9/30 12:49
949k 2003/09/20 C:\cygwin\bin\cygwin1-1.5.5.dll - os=4.0 img=1.0 sys=4.0
"cygwin1.dll" v0.0 ts=2003/9/20 16:31
1085k 2004/01/19 C:\cygwin\bin\cygwin1-1.5.6.dll - os=4.0 img=1.0 sys=4.0
"cygwin1.dll" v0.0 ts=2004/1/19 0:43
1091k 2004/01/20 C:\cygwin\bin\cygwin1-20040120.dll - os=4.0 img=1.0 sys=4.0
"cygwin1.dll" v0.0 ts=2004/1/20 9:31
60k 2003/08/09 C:\cygwin\bin\cygz.dll - os=4.0 img=1.0 sys=4.0
"cygz.dll" v0.0 ts=2003/8/9 2:28
1091k 2004/01/20 C:\cygwin\bin\cygwin1.dll - os=4.0 img=1.0 sys=4.0
"cygwin1.dll" v0.0 ts=2004/1/20 9:31
Cygwin DLL version info:
DLL version: 1.5.7
DLL epoch: 19
DLL bad signal mask: 19005
DLL old termios: 5
DLL malloc env: 28
API major: 0
API minor: 109
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: Tue Jan 20 09:31:12 EST 2004
Snapshot date: 20040120-09:27:37
Shared id: cygwin1S3
Cygwin Package Information
Last downloaded files to: C:\cygwin\install
Last downloaded files from: http://mirrors.rcn.net/pub/sourceware/cygwin
Package Version
_update-info-dir 00226-1
ash 20031007-1
base-files 2.6-1
base-passwd 1.1-1
bash 2.05b-16
binutils 20030901-1
bzip2 1.0.2-5
crypt 1.1-1
cygwin 1.5.6-1
diffutils 2.8.4-1
editrights 1.01-1
expat 1.95.7-1
fileutils 4.1-2
findutils 4.1.7-4
gawk 3.1.3-4
gcc 3.3.1-3
gcc-g++ 3.3.1-3
gcc-mingw-core 20031020-1
gcc-mingw-g++ 20031020-1
gdb 20030919-1
gdbm 1.8.3-7
grep 2.5-1
groff 1.18.1-2
gzip 1.3.5-1
inetutils 1.3.2-25
less 381-1
libbz2_1 1.0.2-5
libdb3.1 3.1.17-2
libdb4.1 4.1.25-1
libgdbm 1.8.0-5
libgdbm-devel 1.8.3-7
libgdbm3 1.8.3-3
libgdbm4 1.8.3-7
libgettextpo0 0.12.1-3
libiconv2 1.9.1-3
libintl1 0.10.40-1
libintl2 0.12.1-3
libncurses5 5.2-1
libncurses6 5.2-8
libncurses7 5.3-4
libpcre 4.1-1
libpcre0 4.5-1
libreadline4 4.1-2
libreadline5 4.3-5
login 1.9-7
make 3.80-1
man 1.5k-2
mingw-runtime 3.2-1
mktemp 1.5-3
ncurses 5.3-4
openssl 0.9.7c-1
perl 5.8.2-1
python 2.3.3-1
readline 4.3-5
rxvt 2.7.10-3
sed 4.0.8-1
sh-utils 2.0.15-4
tar 1.13.25-5
tcltk 20030901-1
termcap 20021106-2
terminfo 5.3_20030726-1
texinfo 4.2-4
textutils 2.0.21-1
unzip 5.50-5
w32api 2.4-1
wget 1.9.1-1
which 1.5-2
zlib 1.1.4-4
Use -h to see help about each section
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