[Bug 736757] [NEW] PANIC (pid 18442): internal error in winbindd

[Michael Schwingen]

Public bug reported:

Binary package hint: samba

Description:    Ubuntu 10.04.2 LTS
Release:        10.04

After upgrading from winbind to 2:3.4.7~dfsg-ubuntu3.5, winbindd does
not start, rendering SMB unusable on the server.

daemon.log shows the following output:

Mar 17 10:36:47 lcs-data winbindd[18442]: [2011/03/17 10:36:47,  0] lib/fault.c:46(fault_report)
Mar 17 10:36:47 lcs-data winbindd[18442]:   ===============================================================
Mar 17 10:36:47 lcs-data winbindd[18442]: [2011/03/17 10:36:47,  0] lib/fault.c:47(fault_report)
Mar 17 10:36:47 lcs-data winbindd[18442]:   INTERNAL ERROR: Signal 11 in pid 18442 (3.4.7)
Mar 17 10:36:47 lcs-data winbindd[18442]:   Please read the Trouble-Shooting section of the Samba3-HOWTO
Mar 17 10:36:47 lcs-data winbindd[18442]: [2011/03/17 10:36:47,  0] lib/fault.c:49(fault_report)
Mar 17 10:36:47 lcs-data winbindd[18442]:
Mar 17 10:36:47 lcs-data winbindd[18442]:   From: http://www.samba.org/samba/docs/Samba3-HOWTO.pdf
Mar 17 10:36:47 lcs-data winbindd[18442]: [2011/03/17 10:36:47,  0] lib/fault.c:50(fault_report)
Mar 17 10:36:47 lcs-data winbindd[18442]:   ===============================================================
Mar 17 10:36:47 lcs-data winbindd[18442]: [2011/03/17 10:36:47,  0] lib/util.c:1480(smb_panic)
Mar 17 10:36:47 lcs-data winbindd[18442]:   PANIC (pid 18442): internal error
Mar 17 10:36:47 lcs-data winbindd[18442]: [2011/03/17 10:36:47,  0] lib/util.c:1584(log_stack_trace)
Mar 17 10:36:47 lcs-data winbindd[18442]:   BACKTRACE: 21 stack frames:
Mar 17 10:36:47 lcs-data winbindd[18442]:    #0 /usr/sbin/winbindd(log_stack_trace+0x1a) [0x7f40611d517a]
Mar 17 10:36:47 lcs-data winbindd[18442]:    #1 /usr/sbin/winbindd(smb_panic+0x1f) [0x7f40611d523f]
Mar 17 10:36:47 lcs-data winbindd[18442]:    #2 /usr/sbin/winbindd(+0x14384d) [0x7f40611c484d]
Mar 17 10:36:47 lcs-data winbindd[18442]:    #3 /lib/libc.so.6(+0x33af0) [0x7f405ed1eaf0]
Mar 17 10:36:47 lcs-data winbindd[18442]:    #4 /usr/sbin/winbindd(rpc_pipe_np_smb_conn+0x4) [0x7f40612b7204]
Mar 17 10:36:47 lcs-data winbindd[18442]:    #5 /usr/sbin/winbindd(rpccli_set_timeout+0x8) [0x7f40612b0048]
Mar 17 10:36:47 lcs-data winbindd[18442]:    #6 /usr/sbin/winbindd(winbindd_lookup_names+0xb1) [0x7f406114a3b1]
Mar 17 10:36:47 lcs-data winbindd[18442]:    #7 /usr/sbin/winbindd(+0xc953f) [0x7f406114a53f]
Mar 17 10:36:47 lcs-data winbindd[18442]:    #8 /usr/sbin/winbindd(+0xca948) [0x7f406114b948]
Mar 17 10:36:47 lcs-data winbindd[18442]:    #9 /usr/sbin/winbindd(+0xcaef7) [0x7f406114bef7]
Mar 17 10:36:47 lcs-data winbindd[18442]:    #10 /usr/sbin/winbindd(+0xb4b9a) [0x7f4061135b9a]
Mar 17 10:36:47 lcs-data winbindd[18442]:    #11 /usr/sbin/winbindd(winbindd_lookup_sid_by_name+0x23) [0x7f4061129773]
Mar 17 10:36:47 lcs-data winbindd[18442]:    #12 /usr/sbin/winbindd(winbindd_dual_lookupname+0xb1) [0x7f4061156751]
Mar 17 10:36:47 lcs-data winbindd[18442]:    #13 /usr/sbin/winbindd(+0xd31e8) [0x7f40611541e8]
Mar 17 10:36:47 lcs-data winbindd[18442]:    #14 /usr/sbin/winbindd(+0xd36cf) [0x7f40611546cf]
Mar 17 10:36:47 lcs-data winbindd[18442]:    #15 /usr/sbin/winbindd(+0x9e9b7) [0x7f406111f9b7]
Mar 17 10:36:47 lcs-data winbindd[18442]:    #16 /usr/sbin/winbindd(tevent_common_check_signal+0x1da) [0x7f40611e699a]
Mar 17 10:36:47 lcs-data winbindd[18442]:    #17 /usr/sbin/winbindd(run_events+0x34) [0x7f40611e4d64]
Mar 17 10:36:47 lcs-data winbindd[18442]:    #18 /usr/sbin/winbindd(main+0xcd3) [0x7f4061121b53]
Mar 17 10:36:47 lcs-data winbindd[18442]:    #19 /lib/libc.so.6(__libc_start_main+0xfd) [0x7f405ed09c4d]
Mar 17 10:36:47 lcs-data winbindd[18442]:    #20 /usr/sbin/winbindd(+0x9e3f9) [0x7f406111f3f9]
Mar 17 10:36:47 lcs-data winbindd[18442]: [2011/03/17 10:36:47,  0] lib/fault.c:326(dump_core)
Mar 17 10:36:47 lcs-data winbindd[18442]:   dumping core in /var/log/samba/cores/winbindd
Mar 17 10:36:47 lcs-data winbindd[18442]:

Downgrading to 2:3.4.7~dfsg-1ubuntu3.4 (including all dependencies)
fixes the problem.

** Affects: samba (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/736757

Title:
   PANIC (pid 18442): internal error in winbindd