Crash when reading cassandra stress

[dorlaor]

The data was inserted successfully (my own assumption) before.
Happened on the AWS setup

One crash:
'''
(gdb) bt
#0 allocate (this=) at core/memory.cc:705
#1 memory::cpu_pages::allocate_small (this=, size=) at core/memory.cc:448
#2 0x000000000086e762 in _M_init_functor (__f=, __functor=...) at /usr/include/c++/5.1.1/tr1/functional:1713
#3 _M_init_functor (__f=, __functor=...) at /usr/include/c++/5.1.1/tr1/functional:1684
#4 function<thrift_server::connection::process_one_request()::<lambda()>::<lambda(bool)> > (__f=..., this=0x7ffbc2187a60)

at /usr/include/c++/5.1.1/tr1/functional:2133

#5 thrift_server::connection::process_one_request()::{lambda()#1}::operator()() const (__closure=__closure@entry=0x61401dbd27f0) at thrift/server.cc:102
#6 0x000000000086fed0 in apply (args=, func=) at /mnt/urchin/seastar/core/apply.hh:34
#7 apply<thrift_server::connection::process_one_request()::<lambda()> > (args=, func=) at /mnt/urchin/seastar/core/apply.hh:42
#8 apply<thrift_server::connection::process_one_request()::<lambda()> > (args=, func=) at /mnt/urchin/seastar/core/future.hh:971
#9 operator()<future_state<> > (state=<unknown type in /mnt/urchin/build/release/scylla, CU 0x46b6ac7, DIE 0x47e06ca>, __closure=0x61401dbd27d0)

at /mnt/urchin/seastar/core/future.hh:636

#10 _ZN12continuationIZN6futureIJEE4thenIS1_ZN13thrift_server10connection19process_one_requestEvEUlvE_ZNS1_4thenIS5_S1_EET0_OT_EUlO12future_stateIJEEE_EEN8futurizeIS8_E4typeEOS7_OT1_EUlS9_E_JEE3runEv (this=0x61401dbd27c0) at /mnt/urchin/seastar/core/future.hh:333
#11 0x000000000043d62a in reactor::run_tasks (this=this@entry=0x614000119000, tasks=..., quota=) at core/reactor.cc:1037
#12 0x0000000000460a5c in reactor::run (this=0x614000119000) at core/reactor.cc:1134
#13 0x000000000046a021 in smp::<lambda()>::operator()(void) const (__closure=0x60000012e800) at core/reactor.cc:1784
#14 0x0000000000439b6e in operator() (this=) at /usr/include/c++/5.1.1/functional:2271
#15 dpdk_thread_adaptor (f=) at core/reactor.cc:1649
#16 0x00000000005e3c8b in eal_thread_loop ()
#17 0x00007ffff4422555 in start_thread () from /lib64/libpthread.so.0
#18 0x00007ffff415db9d in clone () from /lib64/libc.so.6

'''

[dorlaor]

btw: ./tools/bin/cassandra-stress read n=1000000 -pop seq=1..100000 -mode thrift -rate threads=500 -node 172.31.3.59

[slivne]

we do not support thrift check with cql

[avikivity]

Fixed a long time ago by the memory management overhaul