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libknot/nameserver/name-server.c:933: ns_next_closer: Assertion `ce_labels < qname_labels' failed.

    • Closed Issue created by Ondřej Surý @ondrej 
    #0  0x00007ffff69db475 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff69de6f0 in abort () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff69d4621 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x000000000041d9ed in ns_next_closer (closest_encloser=<optimized out>, name=<optimized out>) at libknot/nameserver/name-server.c:933
#4  ns_next_closer (closest_encloser=0x7fffe8009590 "\004jedi\arfc1925\003org", name=0x7fffe802ff10 "\004jedi\arfc1925\003org") at libknot/nameserver/name-server.c:927
#5  0x000000000041db02 in ns_put_nsec3_closest_encloser_proof (zone=zone@entry=0x48d760, closest_encloser=closest_encloser@entry=0x7ffff574e830, 
    qname=qname@entry=0x7fffe802ff10 "\004jedi\arfc1925\003org", resp=resp@entry=0x571290) at libknot/nameserver/name-server.c:1122
#6  0x000000000041de25 in ns_put_nsec3_nxdomain (resp=0x571290, qname=0x7fffe802ff10 "\004jedi\arfc1925\003org", closest_encloser=0x7fffe8009650, zone=0x48d760)
    at libknot/nameserver/name-server.c:1431
#7  ns_put_nsec_nsec3_nxdomain (resp=0x571290, qname=0x7fffe802ff10 "\004jedi\arfc1925\003org", closest_encloser=0x7fffe8009650, previous=0x0, zone=0x48d760)
    at libknot/nameserver/name-server.c:1473
#8  ns_put_nsec_nsec3_nxdomain (zone=0x48d760, previous=0x0, closest_encloser=0x7fffe8009650, qname=0x7fffe802ff10 "\004jedi\arfc1925\003org", resp=0x571290)
    at libknot/nameserver/name-server.c:1463
#9  0x0000000000420606 in ns_answer_from_zone (check_any=1, resp=0x571290, zone=0x48d760) at libknot/nameserver/name-server.c:2250
#10 ns_answer (check_any=1, resp=0x571290, zone=<optimized out>) at libknot/nameserver/name-server.c:2405
#11 knot_ns_answer_normal (nameserver=nameserver@entry=0x489ea0, zone=<optimized out>, resp=0x571290, response_wire=response_wire@entry=0x560ff0 "\216|", rsize=rsize@entry=0x7ffff574e9c0, 
    check_any=1) at libknot/nameserver/name-server.c:3607
#12 0x0000000000414421 in zones_normal_query_answer (nameserver=nameserver@entry=0x489ea0, query=0x571040, addr=addr@entry=0x560f84, resp_wire=resp_wire@entry=0x560ff0 "\216|", 
    rsize=rsize@entry=0x560fe8, transport=transport@entry=NS_TRANSPORT_UDP) at knot/server/zones.c:2457
#13 0x000000000040b40e in udp_handle (ans=0x7ffff574eb10, fd=28, qbuf=qbuf@entry=0x560ff0 "\216|", qbuflen=46, resp_len=resp_len@entry=0x560fe8, addr=addr@entry=0x560f84)
    at knot/server/udp-handler.c:195
#14 0x000000000040b6d4 in udp_recvfrom_handle (ans=<optimized out>, d=0x560f80) at knot/server/udp-handler.c:320
#15 0x000000000040b90e in udp_reader (h=0x488570, thread=thread@entry=0x494db0) at knot/server/udp-handler.c:605
#16 0x000000000040ba86 in udp_master (thread=thread@entry=0x494db0) at knot/server/udp-handler.c:641
#17 0x000000000044aa7d in thread_ep (data=0x494db0) at knot/server/dthreads.c:170
#18 0x00007ffff75a4b50 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#19 0x00007ffff6a83a7d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#20 0x0000000000000000 in ?? ()

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        • Ondřej Surý
          Ondřej Surý @ondrej ·
          Author Contributor 
            Id   Target Id         Frame 
  23   Thread 0x7ffff4b43700 (LWP 24583) 0x00007ffff6a78e33 in poll () from /lib/x86_64-linux-gnu/libc.so.6
  22   Thread 0x7ffff4c44700 (LWP 24582) 0x00007ffff6a78e33 in poll () from /lib/x86_64-linux-gnu/libc.so.6
  21   Thread 0x7ffff4d45700 (LWP 24581) 0x00007ffff6a78e33 in poll () from /lib/x86_64-linux-gnu/libc.so.6
  20   Thread 0x7ffff4e46700 (LWP 24580) 0x00007ffff6a78e33 in poll () from /lib/x86_64-linux-gnu/libc.so.6
  19   Thread 0x7ffff4f47700 (LWP 24579) 0x00007ffff6a78e33 in poll () from /lib/x86_64-linux-gnu/libc.so.6
  18   Thread 0x7ffff5048700 (LWP 24578) 0x00007ffff6a78e33 in poll () from /lib/x86_64-linux-gnu/libc.so.6
  17   Thread 0x7ffff5149700 (LWP 24577) 0x00007ffff6a78e33 in poll () from /lib/x86_64-linux-gnu/libc.so.6
  16   Thread 0x7ffff524a700 (LWP 24576) 0x00007ffff6a78e33 in poll () from /lib/x86_64-linux-gnu/libc.so.6
  15   Thread 0x7ffff534b700 (LWP 24575) 0x00007ffff6a78e33 in poll () from /lib/x86_64-linux-gnu/libc.so.6
  14   Thread 0x7ffff544c700 (LWP 24574) 0x00007ffff6a78e33 in poll () from /lib/x86_64-linux-gnu/libc.so.6
  13   Thread 0x7ffff554d700 (LWP 24573) 0x00007ffff6a7d573 in select () from /lib/x86_64-linux-gnu/libc.so.6
  12   Thread 0x7ffff564e700 (LWP 24572) 0x00007ffff6a7d573 in select () from /lib/x86_64-linux-gnu/libc.so.6
* 11   Thread 0x7ffff574f700 (LWP 24571) 0x00007ffff69db475 in raise () from /lib/x86_64-linux-gnu/libc.so.6
  10   Thread 0x7ffff5850700 (LWP 24570) 0x00007ffff6a7d573 in select () from /lib/x86_64-linux-gnu/libc.so.6
  9    Thread 0x7ffff7feb700 (LWP 24569) 0x00007ffff75a964b in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
  8    Thread 0x7ffff5b53700 (LWP 24568) 0x00007ffff75a92d4 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
  7    Thread 0x7ffff5a52700 (LWP 24567) 0x00007ffff75a92d4 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
  6    Thread 0x7ffff5951700 (LWP 24566) 0x00007ffff75a92d4 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
  1    Thread 0x7ffff7fec880 (LWP 24559) 0x00007ffff6a7d64e in pselect () from /lib/x86_64-linux-gnu/libc.so.6
        • Ondřej Surý
          Ondřej Surý @ondrej ·
          Author Contributor 
          Program received signal SIGABRT, Aborted.
[Switching to Thread 0x7ffff574f700 (LWP 21385)]
0x00007ffff69db475 in raise () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) bt
#0  0x00007ffff69db475 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff69de6f0 in abort () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff69d4621 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x000000000041d9ed in ns_next_closer (closest_encloser=<optimized out>, name=<optimized out>) at libknot/nameserver/name-server.c:933
#4  ns_next_closer (closest_encloser=0x7fffe80009e0 "\004jedi\arfc1925\003org", name=0x7ffff0037dc0 "\004jedi\arfc1925\003org") at libknot/nameserver/name-server.c:927
#5  0x000000000041db02 in ns_put_nsec3_closest_encloser_proof (zone=zone@entry=0x50a290, closest_encloser=closest_encloser@entry=0x7ffff574e830, 
    qname=qname@entry=0x7ffff0037dc0 "\004jedi\arfc1925\003org", resp=resp@entry=0x558220) at libknot/nameserver/name-server.c:1122
#6  0x000000000041de25 in ns_put_nsec3_nxdomain (resp=0x558220, qname=0x7ffff0037dc0 "\004jedi\arfc1925\003org", closest_encloser=0x7fffe8000aa0, zone=0x50a290)
    at libknot/nameserver/name-server.c:1431
#7  ns_put_nsec_nsec3_nxdomain (resp=0x558220, qname=0x7ffff0037dc0 "\004jedi\arfc1925\003org", closest_encloser=0x7fffe8000aa0, previous=0x0, zone=0x50a290)
    at libknot/nameserver/name-server.c:1473
#8  ns_put_nsec_nsec3_nxdomain (zone=0x50a290, previous=0x0, closest_encloser=0x7fffe8000aa0, qname=0x7ffff0037dc0 "\004jedi\arfc1925\003org", resp=0x558220)
    at libknot/nameserver/name-server.c:1463
#9  0x0000000000420606 in ns_answer_from_zone (check_any=1, resp=0x558220, zone=0x50a290) at libknot/nameserver/name-server.c:2250
#10 ns_answer (check_any=1, resp=0x558220, zone=<optimized out>) at libknot/nameserver/name-server.c:2405
#11 knot_ns_answer_normal (nameserver=nameserver@entry=0x489ea0, zone=<optimized out>, resp=0x558220, response_wire=response_wire@entry=0x547f80 "\246e", rsize=rsize@entry=0x7ffff574e9c0, 
    check_any=1) at libknot/nameserver/name-server.c:3607
#12 0x0000000000414421 in zones_normal_query_answer (nameserver=nameserver@entry=0x489ea0, query=0x557fd0, addr=addr@entry=0x547f14, resp_wire=resp_wire@entry=0x547f80 "\246e", 
    rsize=rsize@entry=0x547f78, transport=transport@entry=NS_TRANSPORT_UDP) at knot/server/zones.c:2457
#13 0x000000000040b40e in udp_handle (ans=0x7ffff574eb10, fd=28, qbuf=qbuf@entry=0x547f80 "\246e", qbuflen=46, resp_len=resp_len@entry=0x547f78, addr=addr@entry=0x547f14)
    at knot/server/udp-handler.c:195
#14 0x000000000040b6d4 in udp_recvfrom_handle (ans=<optimized out>, d=0x547f10) at knot/server/udp-handler.c:320
#15 0x000000000040b90e in udp_reader (h=0x488570, thread=thread@entry=0x494db0) at knot/server/udp-handler.c:605
#16 0x000000000040ba86 in udp_master (thread=thread@entry=0x494db0) at knot/server/udp-handler.c:641
#17 0x000000000044aa7d in thread_ep (data=0x494db0) at knot/server/dthreads.c:170
#18 0x00007ffff75a4b50 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#19 0x00007ffff6a83a7d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#20 0x0000000000000000 in ?? ()
        • Ondřej Surý
          Ondřej Surý @ondrej ·
          Author Contributor 
          jedi.rfc1925.org.	3600	IN	A	89.187.130.13
jedi.rfc1925.org.	3600	IN	RRSIG	A 8 3 3600 20131106085702 20131030071619 60225 rfc1925.org. NhsiUIvGHJd3aGBBmNSKZ95uVA0ngtWynQczCp9ZyQMiv6na1bm5QTNgp6mWbRu1tSfXG1OB8/F3BxY3CELsBLmuU7+UKhMXXYBnlSNmJRHpXPVoWa7n++a6sRK7twSZl9Zw9vDyiDvB+O+iMe8fNxyrKTx5+F0TW2DBRVAzjM+4rpsg8UKLSY3fJCwN2K2Kz0kNy9L/KRPCLJ7NylV89Q==
jedi.rfc1925.org.	3600	IN	AAAA	2a01:5f0:1006::59bb:820d
jedi.rfc1925.org.	3600	IN	RRSIG	AAAA 8 3 3600 20131107063037 20131031033901 60225 rfc1925.org. oxgkI2O/ywkBcXR4J1BomcjmfGX2GRpuwTfi5HLu1RfmXsFfHmyXczZ94dX9CdOcuwBpckxtoafSzDrVVgu2gcoxHafITNy9lMxWMi88J5L/PCAM1iB2XXRN+HblYmvFLlN/B4FaXISwbX8nkHL6oDW19/lAEocuQ2YrDBKL/yL07QGf4XPLcKnVudqiauxF+e/+Fnokm0FQUxeAcUFTnQ==
jedi.rfc1925.org.	3600	IN	SSHFP	1 1 e434f973c2b879cf655a9d6b973bca84a8cefcea
jedi.rfc1925.org.	3600	IN	SSHFP	2 1 bb925f93f8a2598cd18a66e4487774b57e016625
jedi.rfc1925.org.	3600	IN	RRSIG	SSHFP 8 3 3600 20131108023740 20131031150134 60225 rfc1925.org. fzWBeHmGNTOK1xEh7Sn8d8MrlWcQTCE8J0eC7dckkwasRXJ4aLfNcB1kz1CGIKvUMDONNjloPVOQuvPlkAcv+WieFzxdzD2Mj22D6dtwJS3r0XZFYcTlkXv6bEsjd/6aTUnxjvIEcfXtERUMwHIYGwYpsLu0KZQPtquWkxcbFEpqTa9vOXiOEIxdGfLthjicBXwOrdaSuDIBvJzUB+FubA==
mumble.rfc1925.org.	3600	IN	CNAME	jedi.rfc1925.org.
voice.rfc1925.org.	3600	IN	CNAME	jedi.rfc1925.org.
        • Ondřej Surý
          Ondřej Surý @ondrej ·
          Author Contributor

          I can provide a full zone if you need it. I have no idea of QTYPE.

        • Ghost User
          Ghost User @ghost ·
          Contributor

          QNAME is weird [4]jedi[11]rfc1925\003org[0], it should be refused I think. Perhaps it is mangled by the debugger, but I doubt it.

        • Ondřej Surý
          Ondřej Surý @ondrej ·
          Author Contributor

          What's weird about the QNAME? And you got the [11] wrong, '\a' is [7].

        • Ghost User
          Ghost User @ghost ·
          Contributor

          Yeah, right, lack of coffee... :coffee:

        • Ghost User
          Ghost User @ghost ·
          Contributor

          The flow should never get to the NXDOMAIN proof code when the name exists, unless there's a problem in the lookup structure. Or there was an error while loading the zone. I'll try to reproduce, but the full zone file would be handy (because closest encloser is needed to get the same data that are in the backtrace).

        • Ondřej Surý
          Ondřej Surý @ondrej ·
          Author Contributor

          Here's the full zone: http://www.sury.org/rfc1925.org

        • Ondřej Surý
          Ondřej Surý @ondrej ·
          Author Contributor

          And again:

          [Switching to Thread 0x7ffff564e700 (LWP 22126)]
0x00007ffff69db475 in raise () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) bt
#0  0x00007ffff69db475 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff69de6f0 in abort () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff69d4621 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x000000000041d9ed in ns_next_closer (closest_encloser=<optimized out>, name=<optimized out>) at libknot/nameserver/name-server.c:933
#4  ns_next_closer (closest_encloser=0x7fffe804f680 "\004jedi\arfc1925\003org", name=0x7fffe802bc70 "\004jedi\arfc1925\003org") at libknot/nameserver/name-server.c:927
#5  0x000000000041db02 in ns_put_nsec3_closest_encloser_proof (zone=zone@entry=0x6f6cc0, closest_encloser=closest_encloser@entry=0x7ffff564d830, 
    qname=qname@entry=0x7fffe802bc70 "\004jedi\arfc1925\003org", resp=resp@entry=0x575760) at libknot/nameserver/name-server.c:1122
#6  0x000000000041de25 in ns_put_nsec3_nxdomain (resp=0x575760, qname=0x7fffe802bc70 "\004jedi\arfc1925\003org", closest_encloser=0x7fffe8001cc0, zone=0x6f6cc0)
    at libknot/nameserver/name-server.c:1431
#7  ns_put_nsec_nsec3_nxdomain (resp=0x575760, qname=0x7fffe802bc70 "\004jedi\arfc1925\003org", closest_encloser=0x7fffe8001cc0, previous=0x0, zone=0x6f6cc0)
    at libknot/nameserver/name-server.c:1473
#8  ns_put_nsec_nsec3_nxdomain (zone=0x6f6cc0, previous=0x0, closest_encloser=0x7fffe8001cc0, qname=0x7fffe802bc70 "\004jedi\arfc1925\003org", resp=0x575760)
    at libknot/nameserver/name-server.c:1463
#9  0x0000000000420606 in ns_answer_from_zone (check_any=1, resp=0x575760, zone=0x6f6cc0) at libknot/nameserver/name-server.c:2250
#10 ns_answer (check_any=1, resp=0x575760, zone=<optimized out>) at libknot/nameserver/name-server.c:2405
#11 knot_ns_answer_normal (nameserver=nameserver@entry=0x489ea0, zone=<optimized out>, resp=0x575760, response_wire=response_wire@entry=0x5654c0 "\321C", rsize=rsize@entry=0x7ffff564d9c0, 
    check_any=1) at libknot/nameserver/name-server.c:3607
#12 0x0000000000414421 in zones_normal_query_answer (nameserver=nameserver@entry=0x489ea0, query=0x575510, addr=addr@entry=0x565454, resp_wire=resp_wire@entry=0x5654c0 "\321C", 
    rsize=rsize@entry=0x5654b8, transport=transport@entry=NS_TRANSPORT_UDP) at knot/server/zones.c:2457
#13 0x000000000040b40e in udp_handle (ans=0x7ffff564db10, fd=28, qbuf=qbuf@entry=0x5654c0 "\321C", qbuflen=46, resp_len=resp_len@entry=0x5654b8, addr=addr@entry=0x565454)
    at knot/server/udp-handler.c:195
#14 0x000000000040b6d4 in udp_recvfrom_handle (ans=<optimized out>, d=0x565450) at knot/server/udp-handler.c:320
#15 0x000000000040b90e in udp_reader (h=0x488570, thread=thread@entry=0x488010) at knot/server/udp-handler.c:605
#16 0x000000000040ba86 in udp_master (thread=thread@entry=0x488010) at knot/server/udp-handler.c:641
#17 0x000000000044aa7d in thread_ep (data=0x488010) at knot/server/dthreads.c:170
#18 0x00007ffff75a4b50 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#19 0x00007ffff6a83a7d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#20 0x0000000000000000 in ?? ()
        • Ghost User
          Ghost User @ghost ·
          Contributor

          !95 (merged)

        • Jan Včelák
          Jan Včelák @jvcelak ·
          Contributor

          Was merged.

        • Jan Včelák
          Jan Včelák @jvcelak ·
          Contributor

          Status changed to closed

        • Ghost User
          Ghost User @ghost ·
          Contributor

          Could you create a test case in the new functional tests for this? It is fairly reproducible. :hammer:

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