Comment 5 for bug 1736028

While https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=190b8440424d0684880808bb8d6587078a7357ef fixed building against GCC-7, percona-server isn't GCC-7 compatible yet:

At least

rpl.rpl_partition_innodb
rpl.rpl_innodb_bug28430
rpl.rpl_alter_repository
rpl.rpl_relayrotate
rpl.rpl_checksum_cache
rpl.rpl_innodb_bug30888
rpl.rpl_innodb_mixed_dml
rpl.rpl_mixed_binlog_max_cache_size

tests are failing. We have already seen real crashes under production load like

> Thread pointer: 0x7fe4244df000
> Attempting backtrace. You can use the following information to find out
> where mysqld died. If you see no messages after this, something went
> terribly wrong...
> stack_bottom = 7fe449f80690 thread_stack 0x40000
> /usr/sbin/mysqld(my_print_stacktrace+0x36)[0x5575684c5d46]
> /usr/sbin/mysqld(handle_fatal_signal+0x3d0)[0x557568271200]
> /lib64/libpthread.so.0(+0x140f0)[0x7fe4487430f0]
> /usr/sbin/mysqld(+0x7b79de)[0x5575685dc9de]
> /usr/sbin/mysqld(+0x7ab702)[0x5575685d0702]
> /usr/sbin/mysqld(+0x7b0484)[0x5575685d5484]
> /usr/sbin/mysqld(+0x7b81dd)[0x5575685dd1dd]
> /usr/sbin/mysqld(+0x748599)[0x55756856d599]
> /usr/sbin/mysqld(+0x74afd7)[0x55756856ffd7]
> /usr/sbin/mysqld(+0x74b5f2)[0x5575685705f2]
> /usr/sbin/mysqld(+0x757120)[0x55756857c120]
> /usr/sbin/mysqld(+0x6d1f34)[0x5575684f6f34]
> /usr/sbin/mysqld(_ZN7handler12ha_write_rowEPh+0x9f)[0x5575681cfc8f]
> /usr/sbin/mysqld(_Z12write_recordP3THDP5TABLEP9COPY_INFOS4_+0x99)[0x5575682d24d9]
> /usr/sbin/mysqld(_Z12mysql_insertP3THDP10TABLE_LISTR4ListI4ItemERS3_IS5_ES6_S6_15enum_duplicatesb+0xc21)[0x5575682d95f1]
> /usr/sbin/mysqld(_Z21mysql_execute_commandP3THD+0x431c)[0x5575682ec6dc]
> /usr/sbin/mysqld(_Z11mysql_parseP3THDPcjP12Parser_state+0x4e0)[0x5575682efb30]
> /usr/sbin/mysqld(_Z16dispatch_command19enum_server_commandP3THDPcj+0x1213)[0x5575682f1473]
> /usr/sbin/mysqld(_Z24do_handle_one_connectionP3THD+0x1bd)[0x5575682bff8d]
> /usr/sbin/mysqld(handle_one_connection+0x38)[0x5575682c0038]
> /usr/sbin/mysqld(pfs_spawn_thread+0xee)[0x5575686e128e]
> /lib64/libpthread.so.0(+0x78ea)[0x7fe4487368ea]
> /lib64/libc.so.6(clone+0x3f)[0x7fe447b0525f]