TokuDB: Server crashes on ROLLBACK TO SAVEPOINT after the 2nd savepoint

#3  <signal handler called>

#4  0x00007f161f948668 in tokudb_rollback_to_savepoint (hton=0x7f1614044e40, thd=0x39fcdc0, savepoint=0x7f1614007528) at 5.5-hf-tokudb/storage/tokudb/hatoku_hton.cc:1000

#5  0x00000000007cc9b1 in ha_rollback_to_savepoint (thd=0x39fcdc0, sv=0x7f16140074c8) at 5.5-hf-tokudb/sql/handler.cc:1858

#6  0x0000000000723d8a in trans_rollback_to_savepoint (thd=0x39fcdc0, name=...) at 5.5-hf-tokudb/sql/transaction.cc:479

#7  0x0000000000614373 in mysql_execute_command (thd=0x39fcdc0) at 5.5-hf-tokudb/sql/sql_parse.cc:3852

#8  0x0000000000619204 in mysql_parse (thd=0x39fcdc0, rawbuf=0x7f161408ab38 "rollback to savepoint sp1", length=25, parser_state=0x7f161fcf1500) at 5.5-hf-tokudb/sql/sql_parse.cc:5760

#9  0x000000000060c8f4 in dispatch_command (command=COM_QUERY, thd=0x39fcdc0, packet=0x3a6dad1 "rollback to savepoint sp1", packet_length=25) at 5.5-hf-tokudb/sql/sql_parse.cc:1068

#10 0x000000000060bb35 in do_command (thd=0x39fcdc0) at 5.5-hf-tokudb/sql/sql_parse.cc:794

#11 0x0000000000712025 in do_handle_one_connection (thd_arg=0x39fcdc0) at 5.5-hf-tokudb/sql/sql_connect.cc:1266

#12 0x0000000000711a0c in handle_one_connection (arg=0x39fcdc0) at 5.5-hf-tokudb/sql/sql_connect.cc:1181

#13 0x0000000000960094 in pfs_spawn_thread (arg=0x3a40df0) at 5.5-hf-tokudb/storage/perfschema/pfs.cc:1015

#14 0x00007f162b3dee9a in start_thread (arg=0x7f161fcf2700) at pthread_create.c:308

#15 0x00007f162a6d2cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112

revision-id: holyfoot@askmonty.org-20130514121908-d6tp4zsdkim0q4dg

revno: 3768

branch-nick: 5.5-hf-tokudb

install soname 'ha_tokudb.so';

drop table if exists t_toku;

create table t_toku (pk int primary key) engine=TokuDB;

begin;

insert into t_toku values (1),(2);

savepoint sp1;

insert into t_toku values (3);

savepoint sp2;

insert into t_toku values (4);

rollback to savepoint sp1;

commit;

select * from t_toku;

drop table t_toku;