Crash running simple analytic with VARCHAR

Query: select LAST_VALUE(vc) OVER (ORDER BY 1) FROM chars_tiny
Error communicating with impalad: TSocket read 0 bytes

(gdb) bt
#0  0x0000003a0ca32635 in raise () from /lib64/libc.so.6
#1  0x0000003a0ca33e15 in abort () from /lib64/libc.so.6
#2  0x00007f37f23af727 in os::abort(bool) ()
   from /opt/toolchain/sun-jdk-64bit-1.6.0.31/jre/lib/amd64/server/libjvm.so
#3  0x00007f37f2502cc8 in VMError::report_and_die() ()
   from /opt/toolchain/sun-jdk-64bit-1.6.0.31/jre/lib/amd64/server/libjvm.so
#4  0x00007f37f23b60e5 in JVM_handle_linux_signal ()
   from /opt/toolchain/sun-jdk-64bit-1.6.0.31/jre/lib/amd64/server/libjvm.so
#5  0x00007f37f23b23ee in signalHandler(int, siginfo*, void*) ()
   from /opt/toolchain/sun-jdk-64bit-1.6.0.31/jre/lib/amd64/server/libjvm.so
#6  <signal handler called>
#7  0x0000000000e97f84 in impala_udf::FunctionContext::impl (this=0x0)
    at /data/9/query-gen/Impala/be/src/udf/udf.h:201
#8  0x00000000014f460a in impala::AnalyticEvalNode::Close (this=0x7a4f880, state=0x6360e00)
    at /data/9/query-gen/Impala/be/src/exec/analytic-eval-node.cc:726
#9  0x00000000013c4387 in impala::PlanFragmentExecutor::Close (this=0x75054a0)
    at /data/9/query-gen/Impala/be/src/runtime/plan-fragment-executor.cc:571
#10 0x00000000013be03f in impala::PlanFragmentExecutor::~PlanFragmentExecutor (
    this=0x75054a0, __in_chrg=<value optimized out>)
    at /data/9/query-gen/Impala/be/src/runtime/plan-fragment-executor.cc:68
#11 0x000000000138e4f9 in boost::checked_delete<impala::PlanFragmentExecutor> (x=0x75054a0)
    at /usr/include/boost/checked_delete.hpp:34
#12 0x000000000138c0db in boost::scoped_ptr<impala::PlanFragmentExecutor>::~scoped_ptr (
    this=0x7c82f18, __in_chrg=<value optimized out>)
    at /usr/include/boost/smart_ptr/scoped_ptr.hpp:80
#13 0x000000000137cfa0 in impala::Coordinator::~Coordinator (this=0x7c82c00, 
    __in_chrg=<value optimized out>)