[Samba] Samba 3.5: dumping core

Helmut Hullen Hullen at t-online.de
Thu Feb 2 04:24:00 MST 2012


Hallo,

in a neighbourhood school Samba (versions 3.5.7 and 3.5.10) show (for  
only one machine) the following log:

...
[2012/02/02 11:08:34.974139,  0] lib/fault.c:326(dump_core)
  dumping core in /var/log/samba/cores/smbd

[2012/02/02 11:37:33.245678,  0] smbd/sesssetup.c:1401(shutdown_other_smbds)
  shutdown_other_smbds: shutting down pid 18379 (IP 192.168.0.175)
[2012/02/02 11:37:33.245983,  0] lib/bitmap.c:120(bitmap_clear)
  clearing invalid bitmap entry 38480 (of 128)
[2012/02/02 11:37:33.246152,  0] lib/popt_common.c:64(popt_s3_talloc_log_fn)
  talloc: double free error - first free may be at smbd/conn.c:293
[2012/02/02 11:37:33.246188,  0] lib/popt_common.c:64(popt_s3_talloc_log_fn)
  Bad talloc magic value - double free
[2012/02/02 11:37:33.246212,  0] lib/util.c:1468(smb_panic)
  PANIC (pid 18379): Bad talloc magic value - double free
[2012/02/02 11:37:33.248340,  0] lib/util.c:1572(log_stack_trace)
  BACKTRACE: 24 stack frames:
   #0 /usr/sbin/smbd(log_stack_trace+0x2d) [0x403665ad]
[2012/02/02 11:37:33.249043,  0] smbd/sesssetup.c:1401(shutdown_other_smbds)
   #1 /usr/sbin/smbd(smb_panic+0x2d) [0x403666cd]
  shutdown_other_smbds: shutting down pid 18379 (IP 192.168.0.175)
   #2 /usr/sbin/smbd(+0x6af90a) [0x406af90a]
   #3 /usr/sbin/smbd(_talloc_free+0xbe) [0x406af83e]
   #4 /usr/sbin/smbd(+0xb60c7) [0x400b60c7]
   #5 /usr/sbin/smbd(+0x138018) [0x40138018]
   #6 /usr/sbin/smbd(+0x6af5d2) [0x406af5d2]
   #7 /usr/sbin/smbd(+0x13737c) [0x4013737c]
   #8 /usr/sbin/smbd(+0x6af551) [0x406af551]
   #9 /usr/sbin/smbd(+0x6ad198) [0x406ad198]
   #10 /usr/sbin/smbd(+0x6ad7c0) [0x406ad7c0]
   #11 /usr/sbin/smbd(+0x6adbfb) [0x406adbfb]
   #12 /usr/sbin/smbd(messaging_dispatch_rec+0x53) [0x40344e23]
   #13 /usr/sbin/smbd(+0x346e3d) [0x40346e3d]
   #14 /usr/sbin/smbd(tevent_common_check_signal+0x190) [0x4037a740]
   #15 /usr/sbin/smbd(run_events+0x26) [0x40377cc6]
   #16 /usr/sbin/smbd(smbd_process+0x9c1) [0x40125391]
   #17 /usr/sbin/smbd(+0x6ad9fc) [0x406ad9fc]
   #18 /usr/sbin/smbd(run_events+0x1f5) [0x40377e95]
   #19 /usr/sbin/smbd(+0x37809b) [0x4037809b]
   #20 /usr/sbin/smbd(_tevent_loop_once+0x98) [0x40378dd8]
   #21 /usr/sbin/smbd(main+0xd7a) [0x406ae9ba]
   #22 /lib/libc.so.6(__libc_start_main+0xe6) [0x40a25db6]
   #23 /usr/sbin/smbd(+0x995c1) [0x400995c1]
[2012/02/02 11:37:33.661736,  0] lib/fault.c:326(dump_core)
  dumping core in /var/log/samba/cores/smbd

---------------------------------------------------------

Who or what can produce these messages?

(I don't yet know what that machine wants to do ...)

Viele Gruesse!
Helmut


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