Maintained by: NLnet Labs

[Unbound-users] 1.4.1 crashing

Attila Nagy
Thu Jan 14 16:51:03 CET 2010


Hello,

Yes, we also have crashes (but with libev and on FreeBSD7 -8 crashes as 
well).
Please try to obtain a crashdump, so we can see whether they are the same.

Wouter wrote that I should run unbound in valgrind, but here it's not an 
easy task...

This is my output:
gdb jail/dns/bin/unbound unbound.core
GNU gdb 6.1.1 [FreeBSD]
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This GDB was configured as "amd64-marcel-freebsd"...
Core was generated by `unbound'.
Program terminated with signal 11, Segmentation fault.
#0  0x000000000063ff88 in free ()
[New Thread 8009030b0 (LWP 100172)]
(gdb) bt
#0  0x000000000063ff88 in free ()
#1  0x0000000000476756 in lruhash_insert (table=0x800926280, 
hash=Variable "hash" is not available.
)
   at util/storage/lruhash.c:333
#2  0x0000000000456cea in rrset_cache_update (r=0x800934c00, 
ref=0x813bbb688,
   alloc=0x800bf0078, timenow=1263147325) at services/cache/rrset.c:210
#3  0x00000000004556aa in dns_cache_store_msg (env=0x800bf13f0,
   qinfo=0x7fffffffe610, hash=4162435340, rep=0x813bbb650, 
leeway=Variable "leeway" is not available.
)
   at services/cache/dns.c:66
#4  0x0000000000455887 in dns_cache_store (env=0x800bf13f0,
   msgqinf=0x81215ab10, msgrep=Variable "msgrep" is not available.
) at services/cache/dns.c:760
#5  0x000000000043b39f in processQueryResponse (qstate=0x812159080,
   iq=0x8121592b0, id=2) at iterator/iterator.c:1554
#6  0x000000000043bc08 in iter_handle (qstate=0x812159080, iq=0x8121592b0,
   ie=0x8009207c0, id=2) at iterator/iterator.c:2186
#7  0x000000000043ce14 in iter_operate (qstate=0x812159080,
   event=module_event_reply, id=2, outbound=0x81215aaf0)
   at iterator/iterator.c:2321
#8  0x000000000045b991 in mesh_run (mesh=0x800ab9820, mstate=0x812159030,
   ev=module_event_reply, e=0x81215aaf0) at services/mesh.c:958
#9  0x00000000004332a6 in worker_handle_service_reply (c=0x8011bc0c0,
   arg=0x81215aaf0, error=0, reply_info=0x7fffffffeaa0) at 
daemon/worker.c:280
#10 0x000000000045f6a2 in serviced_callbacks (sq=0x808a11f00, error=0,
   c=0x8011bc0c0, rep=0x7fffffffeaa0) at services/outside_network.c:1381
---Type <return> to continue, or q <return> to quit---
#11 0x000000000045fb8b in serviced_udp_callback (c=0x8011bc0c0,
   arg=0x808a11f00, error=0, rep=0x7fffffffeaa0)
   at services/outside_network.c:1564
#12 0x0000000000460383 in outnet_udp_cb (c=0x8011bc0c0, arg=0x800bf60c0, 
error=Variable "error" is not available.

) at services/outside_network.c:374
#13 0x0000000000473dc9 in comm_point_udp_callback (fd=57, event=Variable 
"event" is not available.
)
   at util/netevent.c:571
#14 0x0000000000400456 in ev_invoke_pending ()
#15 0x00000000004050e3 in ev_loop ()
#16 0x0000000000405e79 in event_base_loop ()
#17 0x00000000004734ec in comm_base_dispatch (b=Variable "b" is not 
available.
) at util/netevent.c:218
#18 0x000000000042d033 in daemon_fork (daemon=0x800909040)
   at daemon/daemon.c:457
#19 0x00000000004318a4 in main (argc=Variable "argc" is not available.
) at daemon/unbound.c:569
(gdb)

Artis Caune wrote:
> Hi,
>
> we are switching to 1.4.1 version with this patch (FreeBSD8):
> http://www.freebsd.org/cgi/cvsweb.cgi/ports/dns/unbound/files/patch-fix-ipv6?rev=1.1
>
> and unbound is crashing:
> pid 1597 (unbound), uid 59: exited on signal 10
> pid 18943 (unbound), uid 59: exited on signal 11
>
> I have tried to run with:
> - 1 and 2 threads
> - with/without ipv6 patch, no luck.
>
> now I'm running it without libevent (libevent-1.4.13).
>
> >From statistics I can see, that it crashes when certiain amount of
> memory is eaten, maybe when it's starting cache cleaning ?
>
> Anyone have seen this?
>
>
>
>
>