1.5.7s: gdb crash on exit
Rolf Campbell
Endlisnis@mailc.net
Tue Jan 20 20:04:00 GMT 2004
I just realized that gdb (at least on my machine) always crashes if you
attach to any process, then try to quit.
Rolf Campbell wrote:
> I've noticed a problem with the snapshot (it's not limited to the
> snapshot, it was there in 1.5.6 as well). The problem may have been in
> 1.5.5 as well, but it was definitely less pronounced there.
>
> 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)
>
> rcampbell@desk-rcampbell ~
> $
> ------------------------
>
> 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 = `\[\033]0;\w\007
> \033[32m\]\u@\h \[\033[33m\w\033[0m\]
> $ '
> 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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