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

[Hein Gustavsen]

I have a similar problem. winbindd does start, but has crashed several
times since installing 2:3.4.7~dfsg-1ubuntu3.5. Here is my gdb backtrace
from core dump:

Core was generated by `/usr/sbin/winbindd'.
Program terminated with signal 6, Aborted.
#0  0x00007f4fbe8fba75 in raise () from /lib/libc.so.6
(gdb) bt
#0  0x00007f4fbe8fba75 in raise () from /lib/libc.so.6
#1  0x00007f4fbe8ff5c0 in abort () from /lib/libc.so.6
#2  0x00007f4fc0da1450 in dump_core () at lib/fault.c:337
#3  0x00007f4fc0db227e in smb_panic (why=<value optimized out>)
    at lib/util.c:1496
#4  0x00007f4fc0da184d in fault_report (sig=11) at lib/fault.c:52
#5  sig_fault (sig=11) at lib/fault.c:75
#6  <signal handler called>
#7  rpc_pipe_np_smb_conn (p=0x0) at rpc_client/rpc_transport_np.c:402
#8  0x00007f4fc0e8d048 in rpccli_set_timeout (rpc_cli=0x0, timeout=35000)
    at rpc_client/cli_pipe.c:2956
#9  0x00007f4fc0d277a1 in winbindd_lookup_sids (mem_ctx=0x7f4fc2ae8560,
    domain=<value optimized out>, num_sids=<value optimized out>,
    sids=<value optimized out>, domains=0x7fff185eaf90, names=0x7fff185eafa0,
    types=0x7fff185eaf98) at winbindd/winbindd_rpc.c:1221
#10 0x00007f4fc0d2a092 in lookup_groupmem (domain=0x7f4fc2b0a240,
    mem_ctx=0x7f4fc2ae8780, group_sid=0x7f4fc2b2e360,
    num_names=0x7fff185eb2dc, sid_mem=<value optimized out>,
    names=<value optimized out>, name_types=0x7fff185eb2a8)
    at winbindd/winbindd_ads.c:1124
#11 0x00007f4fc0d11503 in lookup_groupmem (domain=<value optimized out>,
    mem_ctx=<value optimized out>, group_sid=<value optimized out>,
    num_names=0x7fff185eb2dc, sid_mem=0x7fff185eb298, names=0x7fff185eb2a0,
---Type <return> to continue, or q <return> to quit---
    name_types=0x7fff185eb2a8) at winbindd/winbindd_cache.c:2211
#12 0x00007f4fc0d045e7 in expand_groups (domain=0x7f4fc2b0a240,
    state=<value optimized out>, group_sid=<value optimized out>,
    group_name_type=SID_NAME_DOM_GRP, num_gr_mem=<value optimized out>,
    gr_mem=<value optimized out>, gr_mem_len=0x7fff185eb668)
    at winbindd/winbindd_group.c:468
#13 fill_grent_mem (domain=0x7f4fc2b0a240, state=<value optimized out>,
    group_sid=<value optimized out>, group_name_type=SID_NAME_DOM_GRP,
    num_gr_mem=<value optimized out>, gr_mem=<value optimized out>,
    gr_mem_len=0x7fff185eb668) at winbindd/winbindd_group.c:604
#14 0x00007f4fc0d05a9f in getgrsid_sid2gid_recv (private_data=0x7f4fc2aa6890,
    success=<value optimized out>, gid=16777729)
    at winbindd/winbindd_group.c:866
#15 0x00007f4fc0cfeba0 in process_loop (argc=<value optimized out>,
    argv=<value optimized out>, envp=<value optimized out>)
    at winbindd/winbindd.c:1115
#16 main (argc=<value optimized out>, argv=<value optimized out>,
    envp=<value optimized out>) at winbindd/winbindd.c:1440


** Attachment added: "winbind core dump"
   https://bugs.launchpad.net/ubuntu/+source/samba/+bug/736757/+attachment/1929172/+files/winbind.core.gz

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

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