[Samba] DNS crashing when accessing with MS DNS tool on Samba with BIND9 backend
L.P.H. van Belle
belle at bazuin.nl
Fri Sep 20 11:43:17 UTC 2019
I would suggest, downgrade to a "release" samba version.
Check if it happens again..
4.10.9-GIT-e3f51924971 < 4.10.9 is not released yet.
If is also craches with 4.10.8, then submit a bug in bugzilla.
(note: > Please read the Trouble-Shooting section of the Samba HOWTO )
;-)
Greetz,
Louis
> -----Oorspronkelijk bericht-----
> Van: samba [mailto:samba-bounces at lists.samba.org] Namens
> Andreas Oster via samba
> Verzonden: vrijdag 20 september 2019 13:13
> Aan: samba at lists.samba.org
> Onderwerp: [Samba] DNS crashing when accessing with MS DNS
> tool on Samba with BIND9 backend
>
> Hi all,
>
> I am currently having some problems managing DNS on our Samba servers
> with bind9 backend. Whenever I try to access the AD domain
> zone from the
> MS DNS tool the DNS part crashes and services need to be restarted.
> After the crash DNS is not working anymore.
>
> I get the following in log.samba:
>
> [2019/09/20 09:39:10.681745, 0]
> ../../source4/rpc_server/dnsserver/dcerpc_dnsserver.c:1101(dns
> server_query_zone)
> dnsserver: Invalid zone operation
> IsSigned======================================================
> =========
> [2019/09/20 09:39:10.693900, 0]
> ../../lib/util/fault.c:80(fault_report)
> INTERNAL ERROR: Signal 11 in pid 6563 (4.10.9-GIT-e3f51924971)
> Please read the Trouble-Shooting section of the Samba HOWTO
> [2019/09/20 09:39:10.694089, 0]
> ../../lib/util/fault.c:82(fault_report)
> ===============================================================
> [2019/09/20 09:39:10.694168, 0]
> ../../lib/util/fault.c:128(smb_panic_default)
> smb_panic_default: PANIC (pid 6563): internal error
> [2019/09/20 09:39:10.695626, 0]
> ../../lib/util/fault.c:261(log_stack_trace)
> BACKTRACE: 49 stack frames:
> #0 /usr/local/samba/lib/libsamba-util.so.0(log_stack_trace+0x2e)
> [0x7fdc478da67f]
> #1 /usr/local/samba/lib/libsamba-util.so.0(+0x22405)
> [0x7fdc478da405]
> #2 /usr/local/samba/lib/libsamba-util.so.0(log_stack_trace+0)
> [0x7fdc478da651]
> #3 /usr/local/samba/lib/libsamba-util.so.0(+0x22307)
> [0x7fdc478da307]
> #4 /usr/local/samba/lib/libsamba-util.so.0(+0x2231c)
> [0x7fdc478da31c]
> #5 /lib/x86_64-linux-gnu/libpthread.so.0(+0x12890) [0x7fdc45fcf890]
> #6
> /usr/local/samba/lib/private/libldb.so.1(ldb_msg_find_element+0x5e)
> [0x7fdc483c57d3]
> #7
> /usr/local/samba/lib/private/libldb.so.1(ldb_msg_find_ldb_val+0x23)
> [0x7fdc483c68ba]
> #8
> /usr/local/samba/lib/private/libldb.so.1(ldb_msg_find_attr_as_
> string+0x27)
> [0x7fdc483c6f80]
> #9
> /usr/local/samba/lib/libdcerpc-server.so.0(dns_name_compare+0x4e)
> [0x7fdc30b97f22]
> #10 /usr/local/samba/lib/private/libldb.so.1(ldb_qsort+0x31e)
> [0x7fdc483d6953]
> #11 /usr/local/samba/lib/libdcerpc-server.so.0(+0x848dc)
> [0x7fdc30b918dc]
> #12 /usr/local/samba/lib/libdcerpc-server.so.0(+0x85df4)
> [0x7fdc30b92df4]
> #13 /usr/local/samba/lib/libdcerpc-server.so.0(+0x867b7)
> [0x7fdc30b937b7]
> #14 /usr/local/samba/lib/libdcerpc-server.so.0(+0x2ac58)
> [0x7fdc30b37c58]
> #15 /usr/local/samba/lib/libdcerpc-server.so.0(+0x2bcda)
> [0x7fdc30b38cda]
> #16 /usr/local/samba/lib/libdcerpc-server.so.0(+0x2d6fc)
> [0x7fdc30b3a6fc]
> #17
> /usr/local/samba/lib/private/libtevent.so.0(_tevent_req_notify
> _callback+0x6a)
> [0x7fdc487ff7d2]
> #18 /usr/local/samba/lib/private/libtevent.so.0(+0x8933)
> [0x7fdc487ff933]
> #19
> /usr/local/samba/lib/private/libtevent.so.0(_tevent_req_done+0x25)
> [0x7fdc487ff960]
> #20 /usr/local/samba/lib/libdcerpc-binding.so.0(+0xea94)
> [0x7fdc44c12a94]
> #21
> /usr/local/samba/lib/private/libtevent.so.0(_tevent_req_notify
> _callback+0x6a)
> [0x7fdc487ff7d2]
> #22 /usr/local/samba/lib/private/libtevent.so.0(+0x8933)
> [0x7fdc487ff933]
> #23
> /usr/local/samba/lib/private/libtevent.so.0(_tevent_req_done+0x25)
> [0x7fdc487ff960]
> #24
> /usr/local/samba/lib/private/libsamba-sockets-samba4.so(+0x72e2)
> [0x7fdc459b72e2]
> #25
> /usr/local/samba/lib/private/libsamba-sockets-samba4.so(+0x751c)
> [0x7fdc459b751c]
> #26
> /usr/local/samba/lib/private/libtevent.so.0(_tevent_req_notify
> _callback+0x6a)
> [0x7fdc487ff7d2]
> #27 /usr/local/samba/lib/private/libtevent.so.0(+0x8933)
> [0x7fdc487ff933]
> #28
> /usr/local/samba/lib/private/libtevent.so.0(_tevent_req_done+0x25)
> [0x7fdc487ff960]
> #29
> /usr/local/samba/lib/private/libsamba-sockets-samba4.so(+0x6722)
> [0x7fdc459b6722]
> #30
> /usr/local/samba/lib/private/libtevent.so.0(_tevent_req_notify
> _callback+0x6a)
> [0x7fdc487ff7d2]
> #31 /usr/local/samba/lib/private/libtevent.so.0(+0x8933)
> [0x7fdc487ff933]
> #32 /usr/local/samba/lib/private/libtevent.so.0(+0x8a60)
> [0x7fdc487ffa60]
> #33
> /usr/local/samba/lib/private/libtevent.so.0(tevent_common_invo
> ke_immediate_handler+0x184)
> [0x7fdc487fe6d5]
> #34
> /usr/local/samba/lib/private/libtevent.so.0(tevent_common_loop
> _immediate+0x37)
> [0x7fdc487fe7db]
> #35 /usr/local/samba/lib/private/libtevent.so.0(+0x11e79)
> [0x7fdc48808e79]
> #36 /usr/local/samba/lib/private/libtevent.so.0(+0xe70b)
> [0x7fdc4880570b]
> #37
> /usr/local/samba/lib/private/libtevent.so.0(_tevent_loop_once+0x11e)
> [0x7fdc487fd17f]
> #38
> /usr/local/samba/lib/private/libtevent.so.0(tevent_common_loop
> _wait+0x25)
> [0x7fdc487fd4d1]
> #39 /usr/local/samba/lib/private/libtevent.so.0(+0xe7ad)
> [0x7fdc488057ad]
> #40
> /usr/local/samba/lib/private/libtevent.so.0(_tevent_loop_wait+0x2b)
> [0x7fdc487fd574]
> #41 /usr/local/samba/lib/process_model/standard.so(+0x29fd)
> [0x7fdc3a9399fd]
> #42
> /usr/local/samba/lib/private/libservice-samba4.so(task_server_
> startup+0x9b)
> [0x7fdc481abb11]
> #43 /usr/local/samba/lib/private/libservice-samba4.so(+0x2b05)
> [0x7fdc481a9b05]
> #44
> /usr/local/samba/lib/private/libservice-samba4.so(server_servi
> ce_startup+0x162)
> [0x7fdc481a9c82]
> #45 samba: task[dcesrv](+0x613e) [0x5638fd65113e]
> #46 samba: task[dcesrv](main+0x3f) [0x5638fd651250]
> #47 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7)
> [0x7fdc45bedb97]
> #48 samba: task[dcesrv](_start+0x2a) [0x5638fd64eb0a]
> [2019/09/20 09:39:11.350740, 0]
> ../../source4/smbd/process_standard.c:160(standard_child_pipe_handler)
> standard_child_pipe_handler: Child 6563 (rpc) terminated
> with signal 6
>
> When I access any other configured non-AD zone on the server the crash
> does not happen.
>
> I have already tried to repair the setup with "samba_upgradedns
> --dns-backend=BIND9_DLZ" but unfortunately this did not
> change anything.
>
> Does anyone have an idea what could be the cause of the
> problem and how
> it can be fixed ?
>
> Thank you for your kind help.
>
> Best regards
> Andreas
>
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