Add new user -> swat core dump
Pierre Dehaen
dehaen at drever.be
Fri Nov 23 06:29:09 GMT 2001
Hello,
I have a problem when I try to create a new user with swat. I used binaries of
Samba 2.2.2 coming from www.samba.org and from www.sunfreeware.com
on Solaris 2.6 and on 8. I also compiled the sources and the result is the
same.
When I click on "Add New User" (Server Password Management), I receive
a nearly blank page: I can only see the samba gif on top and the user is not
created in the smbpasswd file. The source of that html page ends with:
--------------------------[start]
...
<input type=submit name=chg_s_passwd_flag value="Change Password">
<input type=submit name=add_user_flag value="Add New User">
<input type=submit name=delete_user_flag value="Delete User">
<input type=submit name=disable_user_flag value="Disable User">
<input type=submit name=enable_user_flag value="Enable User">
<p></FORM>
--------------------------[end]
This problem does not appear when I use a non existing unix user (I receive
the same page back with an error message), nor when I delete an existing
samba user, nor when I enable/disable a user. It only happens when I create
a user or change the password of a user.
On the Solaris box, I can find a core file in the swat directory. If I truss (see
the system calls) the inetd process and its childs, I see at the end:
---------------------------------------------[start]
...[27542 is the swat PID]...
27542: open64("/usr/local/samba/private/smbpasswd", O_RDONLY) = 5
27542: sigaction(SIGALRM, 0xEFFFEF98, 0x00000000) = 0
27542: alarm(5) = 300
27542: fcntl(5, F_SETLKW64, 0xEFFFF0A8) = 0
27542: alarm(0) = 5
27542: sigaction(SIGALRM, 0xEFFFEF98, 0x00000000) = 0
27542: fchmod(5, 0600) = 0
27542: read(5, " # S a m b a S M B ".., 1024) = 1024
27542: read(5, " 5 C F A 4 E 6 5 D 6 6 2".., 1024) = 1024
27542: read(5, " 0 E 4 0 1 C : 7 9 7 D E".., 1024) = 1024
27542: read(5, " A B 8 0 1 4 6 F 5 7 4 9".., 1024) = 1024
27542: read(5, " 1 E 3 :\n m a r c e l p".., 1024) = 1024
27542: read(5, " [ U ".., 1024) = 1024
27542: read(5, " A 1 D 1 9 C 8 8 5 7 A 9".., 1024) = 1024
27542: read(5, " 4 3 5 B 5 1 4 0 4 E E :".., 1024) = 1024
27542: read(5, " F F 2 7 6 E 3 D 9 2 C A".., 1024) = 1024
27542: read(5, " a i : 1 4 1 : 0 1 2 3 7".., 1024) = 204
27542: read(5, 0x0014E074, 1024) = 0
27542: sigaction(SIGALRM, 0xEFFFF0C8, 0x00000000) = 0
27542: alarm(5) = 0
27542: fcntl(5, F_SETLKW64, 0xEFFFF1D8) = 0
27542: alarm(0) = 5
27542: sigaction(SIGALRM, 0xEFFFF0C8, 0x00000000) = 0
27542: llseek(5, 0, SEEK_CUR) = 9420
27542: close(5) = 0
27542: Incurred fault #6, FLTBOUNDS %pc = 0x00099A90
27542: siginfo: SIGSEGV SEGV_MAPERR addr=0x000000E9
27542: Received signal #11, SIGSEGV [caught]
27542: siginfo: SIGSEGV SEGV_MAPERR addr=0x000000E9
27542: time() = 1006354606
27542: time() = 1006354606
27542: umask(022) = 022
27542: open64("", O_WRONLY|O_CREAT|O_TRUNC, 0666) Err#2
ENOENT
27542: umask(022) = 022
27542: umask(022) = 022
...[the last lines repeated several times]...
27542: open64("", O_WRONLY|O_CREAT|O_TRUNC, 0666) Err#2
ENOENT
27542: umask(022) = 022
27542: sigaction(SIGABRT, 0x00000000, 0xEFFFEA90) = 0
27542: write(1, " H T T P / 1 . 0 2 0 0".., 1696) = 1696
27542: sigaction(SIGABRT, 0xEFFFE960, 0xEFFFE9E0) = 0
27542: sigprocmask(SIG_UNBLOCK, 0xEFFFEA10, 0x00000000) = 0
27542: getpid() = 27542 [171]
27542: kill(27542, SIGABRT) = 0
27542: Received signal #6, SIGABRT [default]
27542: siginfo: SIGABRT pid=27542 uid=0
27542: *** process killed ***
171: Received signal #18, SIGCLD, in poll() [caught]
171: siginfo: SIGCLD CLD_DUMPED pid=27542 status=0x0006
...[171 is the inetd PID]...
---------------------------------------------[end]
I also set the "log level = 10" and "log file = /usr/local/samba/var/log.all" but
this did not gave me any log ! I only saw in the truss that he was now and
then trying to open a file "" (empty name). I changed the following line of
debug.c from:
pstring debugf = "";
to:
pstring debugf = "/usr/local/samba/var/log.all";
This gave me the following log:
(note: this is comming from another computer after a fresh install - no
smbpasswd)
--------------------------------[start]
[2001/11/23 13:38:38, 1] lib/debug.c:debug_message(247)
INFO: Debug class all level = 10 (pid 20671 from pid 20671)
doing parameter log file = /usr/local/samba/var/log.all
doing parameter max log size = 500
doing parameter timestamp logs = No
doing parameter keepalive = 0
doing parameter character set = ISO8859-1
[2001/11/23 13:38:38, 5] lib/util_unistr.c:load_unicode_map(532)
load_unicode_map: loading unicode map for codepage ISO8859-1.
doing parameter dns proxy = No
[2001/11/23 13:38:38, 2] param/loadparm.c:do_section(2902)
Processing section "[home]"
doing parameter comment = home Stuff
doing parameter path = /export/home
doing parameter read only = No
doing parameter guest ok = Yes
doing parameter browseable = No
[2001/11/23 13:38:38, 2] param/loadparm.c:do_section(2902)
Processing section "[doc]"
doing parameter comment = Samba documentation
doing parameter path = /usr/local/samba/doc
doing parameter guest ok = Yes
doing parameter browseable = No
[2001/11/23 13:38:38, 4] param/loadparm.c:lp_load(3343)
pm_process() returned Yes
[2001/11/23 13:38:38, 7] param/loadparm.c:lp_servicenumber(3442)
lp_servicenumber: couldn't find homes
lp_servicenumber: couldn't find printers
lp_servicenumber: couldn't find printers
check_access: allow = , deny =
pass_check: Checking password for user root (l=6)
pdb_getsampwnam: search by name: pms40
startsmbfilepwent_internal: opening file /usr/local/samba/private/smbpasswd
startsmbfilepwent_internal: unable to open file
/usr/local/samba/private/smbpass
wd. Error was No such file or directory
unable to open passdb database.
==========================================================
INTERNAL ERROR: Signal 11 in pid 20671 (2.2.2)
Please read the file BUGS.txt in the distribution
==========================================================
PANIC: internal error
--------------------------------[end]
I used the following configuration file:
--------------------------------[start]
[global]
workgroup = UNIX
netbios name = DUNDEE
server string = Samba Server
interfaces = 192.9.200.38
encrypt passwords = Yes
map to guest = Bad User
log level = 10
log file = /usr/local/samba/var/log.all
max log size = 500
timestamp logs = No
keepalive = 0
character set = ISO8859-1
dns proxy = No
[home]
comment = home Stuff
path = /export/home
read only = No
guest ok = Yes
browseable = No
--------------------------------[end]
I tried to understand what happened through the source files but without
success (got lost after a few hours).
I also tried to analyse the core file with "adb" but I'm not used to such a
debugger and I don't know exactly what to do with it...
Regards,
Pierre
PS: It worked fine with 2.0.7 in the past.
E-mail:dehaen at ecam.be
Tel/Fax: +32 10 24 78 87
Mobile: +32 496 28 54 66
More information about the samba
mailing list