rocksdb.compact_deletes times out and causes other tests to fail

rocksdb.compact_deletes                  w2 [ fail ]  timeout after 900 seconds

...

rpl.rpl_replicate_do 'stmt'              w2 [ fail ]

        Test ended at 2017-05-01 16:02:25

CURRENT_TEST: rocksdb.compact_deletes

mysqltest got signal 6

read_command_buf (0x7fc6097acfa0): perl

conn->name (0x7fc609aed888): 

Attempting backtrace...

stack_bottom = 0x0 thread_stack 0x3c000

/usr/local/mariadb-10.2.6-linux-x86_64/bin/mysqltest(my_print_stacktrace+0x2e)[0x7fc60903bf5e]

/usr/local/mariadb-10.2.6-linux-x86_64/bin/mysqltest(+0x83c7a)[0x7fc608ff8c7a]

/lib/x86_64-linux-gnu/libpthread.so.0(+0x10330)[0x7fc608b42330]

/lib/x86_64-linux-gnu/libc.so.6(__read+0x10)[0x7fc60834be00]

/lib/x86_64-linux-gnu/libc.so.6(_IO_file_underflow+0x128)[0x7fc6082dae78]

/lib/x86_64-linux-gnu/libc.so.6(_IO_default_uflow+0xe)[0x7fc6082dbdee]

/lib/x86_64-linux-gnu/libc.so.6(_IO_getline_info+0xa4)[0x7fc6082cfbe4]

/lib/x86_64-linux-gnu/libc.so.6(fgets+0x9f)[0x7fc6082cebbf]

/usr/local/mariadb-10.2.6-linux-x86_64/bin/mysqltest(_Z7do_perlP10st_command+0x168)[0x7fc6090056c8]

/usr/local/mariadb-10.2.6-linux-x86_64/bin/mysqltest(main+0x1787)[0x7fc608ff85c7]

/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5)[0x7fc608281ed5]

/usr/local/mariadb-10.2.6-linux-x86_64/bin/mysqltest(+0x8397c)[0x7fc608ff897c]

Writing a core file...

CURRENT_TEST: rocksdb.compact_deletes

CURRENT_TEST: rpl-tokudb.rpl_deadlock_tokudb

CURRENT_TEST: rpl.rpl_replicate_do

Failed to start mysqld.1

 - skipping '/usr/local/mariadb-10.2.6-linux-x86_64/mysql-test/var/2/log/rpl.rpl_replicate_do-stmt/'

worker[2] > Restart  - not started

worker[2] > Restart  - not started

Retrying test rpl.rpl_replicate_do, attempt(2/3)...