Maintained by: NLnet Labs

[Unbound-users] Unbound 1.4.16

Janne Snabb
Tue Oct 23 11:38:57 CEST 2012


Hi,

Unbound 1.4.16 as distributed by Ubuntu 12.04 is crashing under high
query load.

Is this the same problem as referenced at the following URL?

https://unbound.net/pipermail/unbound-users/2012-September/002571.html

Here is a gdb backtrace:

$ gdb /usr/sbin/unbound core.28338
GNU gdb (Ubuntu/Linaro 7.4-2012.04-0ubuntu2) 7.4-2012.04
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
<http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://bugs.launchpad.net/gdb-linaro/>...
Reading symbols from /usr/sbin/unbound...Reading symbols from
/usr/lib/debug/usr/sbin/unbound...done.
done.
[New LWP 28345]
[New LWP 28338]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `unbound'.
Program terminated with signal 11, Segmentation fault.
#0 RSA_new_method (engine=<optimized out>) at rsa_lib.c:191
191 rsa_lib.c: No such file or directory.
(gdb) bt
#0 RSA_new_method (engine=<optimized out>) at rsa_lib.c:191
#1 0x00007f7d1a04a0f4 in ldns_key_buf2rsa_raw () from /usr/lib/libldns.so.1
#2 0x0000000000469aea in setup_key_digest (keylen=<optimized out>,
    key=<optimized out>, digest_type=<synthetic pointer>,
    evp_key=<synthetic pointer>, algo=8) at validator/val_sigcrypt.c:1413
#3 verify_canonrrset (reason=0x7f7d177b16d8, keylen=<optimized out>,
    key=<optimized out>, sigblock_len=<optimized out>,
    sigblock=0x7f7d106a6b95
"t$\313\314\032J\002\235y͙'\273\221jj\353\367\222\3550\030e\350RJ\016\355Kb\221\207\071\200\312\344\"\236\232\325G\260\262\241\265\026EC\341\371\302A\376\370==\330\006ݦ\022\062j\033T\255\255\353\231Q\310\v\342\350١AK=e\322\067\335i\373\273\063:7\264\244\035Y\230\226}\030\260\360JX\237\242[\331\327]u\006\351_\003\t\346|E\362l?\364\317+oZ\204P\245`\266",
algo=8,
    buf=0x7f7d1056fac0) at validator/val_sigcrypt.c:1506
#4 dnskey_verify_rrset_sig (region=<optimized out>, buf=0x7f7d1056fac0,
    ve=0x18f0310, now=1350983573, rrset=0x7f7d106a67b8,
    dnskey=<optimized out>, dnskey_idx=0, sig_idx=0, sortree=0x7f7d177b14d0,
    buf_canon=0x7f7d177b14dc, reason=0x7f7d177b16d8)
    at validator/val_sigcrypt.c:1683
#5 0x000000000043039c in dnskeyset_verify_rrset_sig (reason=0x7f7d177b16d8,
    sortree=0x7f7d177b14d0, sig_idx=0, dnskey=0x7f7d177b1520,
    rrset=0x7f7d106a67b8, now=1350983573, ve=0x18f0310, env=0x1920298)
    at validator/val_sigcrypt.c:680
#6 dnskeyset_verify_rrset (env=0x1920298, ve=0x18f0310,
rrset=0x7f7d106a67b8,
    dnskey=0x7f7d177b1520, sigalg=0x7f7d109102f0 "\b",
reason=0x7f7d177b16d8)
    at validator/val_sigcrypt.c:581
#7 0x0000000000432ea4 in val_verify_rrset (reason=0x7f7d177b16d8,
    sigalg=0x7f7d109102f0 "\b", keys=0x7f7d177b1520, rrset=0x7f7d106a67b8,
    ve=0x18f0310, env=0x1920298) at validator/val_utils.c:335
#8 val_verify_rrset_entry (env=0x1920298, ve=0x18f0310,
rrset=0x7f7d106a67b8,
    kkey=<optimized out>, reason=0x7f7d177b16d8) at
validator/val_utils.c:381
#9 0x000000000042e9f8 in list_is_secure (reason=<optimized out>,
    kkey=<optimized out>, num=<optimized out>, list=<optimized out>,
    ve=<optimized out>, env=<optimized out>) at validator/val_nsec3.c:1313
#10 nsec3_prove_nods (reason=0x7f7d177b16d8, kkey=0x7f7d1090ff20,
    qinfo=0x7f7d106a4190, num=3, list=0x7f7d106a6690, ve=0x18f0310,
    env=0x1920298) at validator/val_nsec3.c:1340
#11 ds_response_to_ke.isra.1 (ke=<synthetic pointer>, qinfo=0x7f7d106a4190,
    rcode=<optimized out>, id=<optimized out>, qstate=<optimized out>)
    at validator/validator.c:2435
#12 process_ds_response.29359 (qstate=<optimized out>, vq=0x7f7d1090fdf8,
    id=<optimized out>, rcode=<optimized out>, msg=<optimized out>,
    qinfo=0x7f7d106a4190, origin=0x7f7d106a6fb8) at
validator/validator.c:2552
#13 0x0000000000444d61 in val_inform_super (qstate=0x7f7d106a4190, id=0,
    super=0x7f7d1160e430) at validator/validator.c:2892
#14 0x000000000046191b in mesh_walk_supers (mesh=0x7f7d1055f280,
    mstate=<optimized out>) at services/mesh.c:916
#15 0x0000000000431724 in mesh_continue (ev=<synthetic pointer>,
    s=<optimized out>, mstate=0x7f7d106a4140, mesh=<optimized out>)
    at services/mesh.c:1033
#16 mesh_run (mesh=0x7f7d1055f280, mstate=0x7f7d106a4140, ev=<optimized
out>,
    e=0x0) at services/mesh.c:1064
#17 0x0000000000431ed6 in worker_handle_service_reply (c=0x7f7d1033d520,
    arg=0x7f7d106a6600, error=0, reply_info=0x7f7d177b1ca0)
    at daemon/worker.c:283
#18 0x000000000041f34b in serviced_callbacks.39588 (sq=0x7f7d10a8f210,
    error=0, c=0x7f7d1033d520, rep=0x7f7d177b1ca0)
    at services/outside_network.c:1505
#19 0x0000000000428d71 in serviced_udp_callback (c=0x7f7d1033d520,
    arg=0x7f7d10a8f210, error=0, rep=0x7f7d177b1ca0)
    at services/outside_network.c:1776
#20 0x000000000041bbd8 in outnet_udp_cb.part.21 (reply_info=0x7f7d177b1ca0,
    arg=0x7f7d100b2aa0, c=0x7f7d1033d520) at services/outside_network.c:457
#21 outnet_udp_cb (c=0x7f7d1033d520, arg=0x7f7d100b2aa0,
    error=<optimized out>, reply_info=0x7f7d177b1ca0)
    at services/outside_network.c:386
#22 0x0000000000418144 in comm_point_udp_callback (fd=506,
    event=<optimized out>, arg=<optimized out>) at util/netevent.c:626
#23 0x00007f7d19ded94c in event_base_loop () from /usr/lib/libevent-2.0.so.5
#24 0x000000000044db5c in comm_base_dispatch (b=<optimized out>)
    at util/netevent.c:252
#25 0x000000000046944e in worker_work (worker=0x191eeb0)
    at daemon/worker.c:1196
#26 thread_start (arg=0x191eeb0) at daemon/daemon.c:386
#27 0x00007f7d19303e9a in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#28 0x00007f7d19030cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#29 0x0000000000000000 in ?? ()
(gdb)

Best Regards,
-- 
Janne Snabb / EPIPE Communications
snabb at epipe.com - http://epipe.com/