sql/mysqld --no-defaults --skip-networking --datadir=/tmp/datadir --log-bin=/tmp/datadir/mysqlbin --socket /tmp/s.sock --lc-messages-dir=/home/dan/repos/build-mariadb-server-10.4-upstream/sql/share --innodb_buffer_pool_instances=1 --large-pages --innodb_buffer_pool_chunk_size=4G --innodb_buffer_pool_size=8G --verbose

2019-04-08 10:20:50 0 [Note] /home/dan/repos/build-mariadb-server-10.4-upstream/sql/mysqld (mysqld 10.4.4-MariaDB-log) starting as process 32260 ...

Thread 1 "mysqld" hit Breakpoint 1, os_mem_alloc_large (n=n@entry=0x7fffffff59b0) at /home/dan/repos/mariadb-server/storage/innobase/os/os0proc.cc:66

66	{

(gdb) p *n

$1 = 4391436288

(gdb) n

73		if (!os_use_large_pages || !os_large_page_size) {

(gdb) p os_large_page_size 

$2 = 2097152

(gdb) n

79		size = ut_2pow_round(*n + (os_large_page_size - 1),

(gdb) n

82		shmid = shmget(IPC_PRIVATE, (size_t) size, SHM_HUGETLB | SHM_R | SHM_W);

(gdb) p size

$3 = 96468992

(gdb) n

83		if (shmid < 0) {

(gdb) 

84			ib::warn() << "Failed to allocate " << size

(gdb) 

85				<< " bytes. errno " << errno;

(gdb) 

2019-04-08 10:25:48 0 [Warning] InnoDB: Failed to allocate 96468992 bytes. errno 22

108		ib::warn() << "Using conventional memory pool";

190408 10:29:29 [Note] /home/dan/repos/build-mariadb-5.5/sql/mysqld (mysqld 5.5.64-MariaDB) starting as process 26248 ...

Warning: Failed to allocate 130023424 bytes from HugeTLB memory. errno 22

Warning: Using conventional memory pool

[New Thread 0x7ffff6dff700 (LWP 26255)]

190408 10:29:29 InnoDB: The InnoDB memory heap is disabled

190408 10:29:29 InnoDB: Mutexes and rw_locks use GCC atomic builtins

190408 10:29:29 InnoDB: Compressed tables use zlib 1.2.11

190408 10:29:29 InnoDB: Using Linux native AIO

190408 10:29:29 InnoDB: Initializing buffer pool, size = 8.0G

Thread 1 "mysqld" hit Breakpoint 1, os_mem_alloc_large (n=n@entry=0x7ffff72eb258, populate=populate@entry=0)

    at /home/dan/repos/mariadb-server-5.5/storage/xtradb/os/os0proc.c:112

112		if (!os_use_large_pages || !os_large_page_size) {

Missing separate debuginfos, use: dnf debuginfo-install jemalloc-5.1.0-2.fc29.x86_64 libxcrypt-4.4.4-2.fc29.x86_64

(gdb) p os_large_page_size 

$1 = 2097152

(gdb) p *n

$2 = 8816427008

(gdb) n

118		size = ut_2pow_round(*n + (os_large_page_size - 1),

(gdb) n

121		shmid = shmget(IPC_PRIVATE, (size_t)size, SHM_HUGETLB | SHM_R | SHM_W);

(gdb) p size

$3 = 8816427008

(gdb) n

122		if (shmid < 0) {

(gdb) 

123			fprintf(stderr, "InnoDB: HugeTLB: Warning: Failed to allocate"

(gdb) 

InnoDB: HugeTLB: Warning: Failed to allocate 8816427008 bytes. errno 22

141		if (ptr) {

(gdb) quit

2019-04-08 10:57:07 0 [Note] /home/dan/repos/build-mariadb-server-10.4/sql/mysqld (mysqld 10.4.5-MariaDB-debug-log) starting as process 21743 ...

2019-04-08 10:57:07 0 [Warning] Could not increase number of max_open_files to more than 4096 (request: 4190)

2019-04-08 10:57:07 0 [Warning] Changed limits: max_open_files: 4096  max_connections: 151 (was 151)  table_cache: 1957 (was 2000)

[New Thread 0x7ffff70e3700 (LWP 21772)]

Warning: Failed to allocate 130023424 bytes from HugeTLB memory. errno 22

Warning: Using conventional memory pool

[New Thread 0x7fffe25ff700 (LWP 21782)]

2019-04-08 10:57:07 0 [Note] InnoDB: Using Linux native AIO

2019-04-08 10:57:07 0 [Note] InnoDB: !!!!!!!! UNIV_DEBUG switched on !!!!!!!!!

2019-04-08 10:57:07 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins

2019-04-08 10:57:07 0 [Note] InnoDB: Uses event mutexes

2019-04-08 10:57:07 0 [Note] InnoDB: Compressed tables use zlib 1.2.11

2019-04-08 10:57:07 0 [Note] InnoDB: Number of pools: 1

2019-04-08 10:57:07 0 [Note] InnoDB: Using SSE2 crc32 instructions

2019-04-08 10:57:07 0 [Note] mysqld: O_TMPFILE is not supported on /tmp (disabling future attempts)

2019-04-08 10:57:07 0 [Note] InnoDB: Initializing buffer pool, total size = 8G, instances = 1, chunk size = 4G

Thread 1 "mysqld" hit Breakpoint 1, os_mem_alloc_large (n=0x7fffffff8ba0) at /home/dan/repos/mariadb-server-10.4/storage/innobase/os/os0proc.cc:66

66	{

Missing separate debuginfos, use: dnf debuginfo-install libxcrypt-4.4.4-2.fc29.x86_64 openssl-libs-1.1.1b-3.fc29.x86_64

(gdb) p *n

$1 = 4294967296

(gdb) n

73		if (!os_use_large_pages || !os_large_page_size) {

(gdb) p os_large_page_size 

$2 = 2097152

(gdb) n

78		ut_ad(ut_is_2pow(os_large_page_size));

(gdb) 

79		size = ut_2pow_round(*n + (os_large_page_size - 1),

(gdb) 

82		shmid = shmget(IPC_PRIVATE, (size_t) size, SHM_HUGETLB | SHM_R | SHM_W);

(gdb) p size

$3 = 4294967296

(gdb) n