Susan Hinrichs created TS-4915:
----------------------------------
Summary: Crash from hostdb in PriorityQueueLess
Key: TS-4915
URL: https://issues.apache.org/jira/browse/TS-4915
Project: Traffic Server
Issue Type: Bug
Components: HostDB
Reporter: Susan Hinrichs
Saw this while testing fix for TS-4813 with debug enabled.
{code}
(gdb) bt full
#0 0x0000000000547bfe in RefCountCacheHashEntry::operator< (this=0x1cc0880,
v2=...) at ../iocore/hostdb/P_RefCountCache.h:94
No locals.
#1 0x000000000054988d in
PriorityQueueLess<RefCountCacheHashEntry*>::operator() (this=0x2b78a9a2587b,
a=@0x2b78f402af68, b=@0x2b78f402aa28)
at ../lib/ts/PriorityQueue.h:41
No locals.
#2 0x0000000000549785 in PriorityQueue<RefCountCacheHashEntry*,
PriorityQueueLess<RefCountCacheHashEntry*> >::_bubble_up (this=0x1cb2990,
index=2) at ../lib/ts/PriorityQueue.h:191
comp = {<No data fields>}
parent = 0
#3 0x00000000006ecfcc in PriorityQueue<RefCountCacheHashEntry*,
PriorityQueueLess<RefCountCacheHashEntry*> >::push (this=0x1cb2990,
entry=0x2b78f402af60) at ../../lib/ts/PriorityQueue.h:91
len = 2
#4 0x00000000006ec206 in RefCountCachePartition<HostDBInfo>::put
(this=0x1cb2900, key=6912554662447498853, item=0x2b78aee04f00, size=96,
expire_time=1475202356) at ./P_RefCountCache.h:210
expiry_entry = 0x2b78f402af60
__func__ = "put"
val = 0x1cc0880
#5 0x00000000006eb3de in RefCountCache<HostDBInfo>::put (this=0x18051e0,
key=6912554662447498853, item=0x2b78aee04f00, size=16,
expiry_time=1475202356) at ./P_RefCountCache.h:462
No locals.
#6 0x00000000006e2d8e in HostDBContinuation::dnsEvent (this=0x2b7938020f00,
event=600, e=0x2b78ac009440) at HostDB.cc:1422
is_rr = false
old_rr_data = 0x0
first_record = 0x2b78ac0094f8
m = 0x1
failed = false
old_r = {m_ptr = 0x0}
af = 2 '\002'
s_size = 16
rrsize = 0
allocSize = 16
r = 0x2b78aee04f00
old_info = {<RefCountObj> = {<ForceVFPTToTop> = {_vptr.ForceVFPTToTop =
0x7f3630}, m_refcount = 0}, iobuffer_index = 0,
key = 47797242059264, app = {allotment = {application1 = 5326300,
application2 = 0}, http_data = {http_version = 4,
pipeline_max = 59, keepalive_timeout = 17, fail_count = 81,
unused1 = 0, last_failure = 0}, rr = {offset = 5326300}}, data = {
ip = {sa = {sa_family = 54488, sa_data =
"^\000\000\000\000\000\020\034$\274x+\000"}, sin = {sin_family = 54488,
sin_port = 94,
sin_addr = {s_addr = 0}, sin_zero = "\020\034$\274x+\000"},
sin6 = {sin6_family = 54488, sin6_port = 94, sin6_flowinfo = 0,
sin6_addr = {__in6_u = {__u6_addr8 =
"\020\034$\274x+\000\000\030\036$\274\375\b\000", __u6_addr16 = {7184, 48164,
11128,
0, 7704, 48164, 2301, 0}, __u6_addr32 = {3156483088,
11128, 3156483608, 2301}}}, sin6_scope_id = 3156478176}},
hostname_offset = 6214872, srv = {srv_offset = 54488, srv_weight =
94, srv_priority = 0, srv_port = 0, key = 3156483088}},
hostname_offset = 11128, ip_timestamp = 2845989456,
ip_timeout_interval = 11128, is_srv = 0, reverse_dns = 0, round_robin = 1,
round_robin_elt = 0}
valid_records = 0
tip = {_family = 2, _addr = {_ip4 = 540420056, _ip6 = {__in6_u =
{__u6_addr8 = "\330'6 x+\000\000\360L\020\250x+\000",
__u6_addr16 = {10200, 8246, 11128, 0, 19696, 43024, 11128, 0},
__u6_addr32 = {540420056, 11128, 2819640560, 11128}}},
_byte = "\330'6 x+\000\000\360L\020\250x+\000", _u32 = {540420056,
11128, 2819640560, 11128}, _u64 = {47794936489944,
47797215710448}}}
ttl_seconds = 132
aname = 0x2b7938021000 "fbmm1.zenfs.com"
offset = 96
thread = 0x2b78a8101010
__func__ = "dnsEvent"
#7 0x00000000005145dc in Continuation::handleEvent (this=0x2b7938020f00,
event=600, data=0x2b78ac009440)
at ../iocore/eventsystem/I_Continuation.h:153
No locals.
#8 0x00000000006f681e in DNSEntry::postEvent (this=0x2b78f4028600) at
DNS.cc:1269
__func__ = "postEvent"
#9 0x00000000005145dc in Continuation::handleEvent (this=0x2b78f4028600,
event=1, data=0x2aac954db040)
at ../iocore/eventsystem/I_Continuation.h:153
No locals.
#10 0x00000000007bc9be in EThread::process_event (this=0x2b78a8101010,
e=0x2aac954db040, calling_code=1) at UnixEThread.cc:143
c_temp = 0x2b78f4028600
lock = {m = {m_ptr = 0x17dea10}, lock_acquired = true}
__func__ = "process_event"
#11 0x00000000007bcc2d in EThread::execute (this=0x2b78a8101010) at
UnixEThread.cc:197
done_one = false
e = 0x2aac954db040
NegativeQueue = {<DLL<Event, Event::Link_link>> = {head = 0x18ce400},
tail = 0x18ce400}
next_time = 1475191803711988905
__func__ = "execute"
#12 0x00000000007bbfd2 in spawn_thread_internal (a=0x17fb9a0) at Thread.cc:84
p = 0x17fb9a0
#13 0x00002b78a2555aa1 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#14 0x00000032310e893d in clone () from /lib64/libc.so.6
No symbol table info available.
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