[dns-operations] bind-9.9.4-P1 crash

[Jared Mauch]

Anyone seen this crash:?

I’m hitting it fairly often right now and trying to poke at the code for triage:

17-Dec-2013 20:56:03.138 general: name.c:1727: INSIST(offset <= length) failed, back trace
17-Dec-2013 20:56:03.138 general: #0 0x43140d in ??
17-Dec-2013 20:56:03.138 general: #1 0x7ffff622517a in ??
17-Dec-2013 20:56:03.138 general: #2 0x7ffff7873536 in ??
17-Dec-2013 20:56:03.139 general: #3 0x7ffff7877b8d in ??
17-Dec-2013 20:56:03.139 general: #4 0x432590 in ??
17-Dec-2013 20:56:03.139 general: #5 0x4367a6 in ??
17-Dec-2013 20:56:03.139 general: #6 0x440c1f in ??
17-Dec-2013 20:56:03.139 general: #7 0x445c19 in ??
17-Dec-2013 20:56:03.139 general: #8 0x426bef in ??
17-Dec-2013 20:56:03.139 general: #9 0x7ffff6247836 in ??
17-Dec-2013 20:56:03.139 general: #10 0x7ffff5dfcf33 in ??
17-Dec-2013 20:56:03.139 general: #11 0x7ffff5b2aead in ??
17-Dec-2013 20:56:03.139 general: exiting (due to assertion failure)


Seems to perhaps be with a specific QNAME

(gdb) bt
#0  0x00007ffff5a6bc59 in raise () from /usr/lib64/libc.so.6
#1  0x00007ffff5a6d368 in abort () from /usr/lib64/libc.so.6
#2  0x00000000004315d6 in assertion_failed (file=<optimized out>, line=<optimized out>, type=<optimized out>, cond=<optimized out>) at ./main.c:218
#3  0x00007ffff622517a in isc_assertion_failed () from /usr/lib64/libisc.so.95
#4  0x00007ffff7873536 in set_offsets () from /usr/lib64/libdns.so.100
#5  0x00007ffff7877b8d in dns_name_copy () from /usr/lib64/libdns.so.100
#6  0x0000000000432590 in query_findclosestnsec3 (qname=qname at entry=0x7ffff26b6810, db=db at entry=0x7fffe73d82b0, version=version at entry=0x0, 
    client=client at entry=0x7fffe8132e10, rdataset=0x7fffed088b00, sigrdataset=0x7fffed0880f0, fname=0x7fffed0850b0, exact=exact at entry=isc_boolean_true, 
    found=found at entry=0x7ffff26b6810) at query.c:5337
#7  0x00000000004367a6 in query_addwildcardproof (client=<optimized out>, db=0x7fffe73d82b0, version=0x7fffe73d0590, name=<optimized out>, 
    ispositive=ispositive at entry=isc_boolean_false, nodata=nodata at entry=isc_boolean_false) at query.c:3482
#8  0x0000000000440c1f in query_find (client=0x7fffe8132e10, event=event at entry=0x0, qtype=<optimized out>, qtype at entry=12) at query.c:6686
#9  0x0000000000445c19 in ns_query_start (client=client at entry=0x7fffe8132e10) at query.c:7794
#10 0x0000000000426bef in client_request (task=<optimized out>, event=<optimized out>) at client.c:1939
#11 0x00007ffff6247836 in run () from /usr/lib64/libisc.so.95
#12 0x00007ffff5dfcf33 in start_thread () from /usr/lib64/libpthread.so.0
#13 0x00007ffff5b2aead in clone () from /usr/lib64/libc.so.6

QNAME available in private for those that I trust.

- Jared