2624764 - IQ server hang with two "hos_ABORT" and one "DumpAllThreads" in the stacktrace of the same thread

IQ server gets unresponsive and following thread can be found from the pstack output collected during IQ hang.

Thread 1522 (Thread 0x7f6e9cde6700 (LWP 11175)):
__lll_lock_wait
_L_lock_791
pthread_mutex_lock
hos_ABORT
SigHndlr
<signal handler called>
hos_strncat
ucstkgenPrintheading
DumpAllThreads
hos_ABORT
Throw
hos_assertexception::ThrowException
st_ErrorQueue::~st_ErrorQueue
st_SAIQInterface::~st_SAIQInterface
st_connection::~st_connection
st_iqctl::DestroyConnection
UIQCtl_DestroyConnection
st_SAIQInterfaceInfo::callFunction
st_SAIQInterface::RunIQFunc
st_SAIQInterface::Execute
saint_iqthresholdctl::DestroyConnection
Connection::~Connection
Connection::close
db__disconnect
RequestProcedure::call
Context::call
Worker::call_on_stack
TopProcedure::call
Worker::spawn
EngStream::handle_ind
EngStream::execute
RQBaseItem::do_work
RequestQueue::worker_body
request_task
run_task_body
UnixTask::pre_body
start_thread
clone

SAP IQ 16.0 SP11.18

"hos_ABORT"; "DumpAllThreads"; "813809"; "CR813809"; "CR 813809"; "813710"; "CR813710"; "CR 813710"; , KBA , BC-SYB-IQ , Sybase IQ , BW-SYS-DB-IQ , BW on HANA with Sybase IQ Near-line Storage , Problem