$ strace dmidecode
("/usr/sbin/dmidecode", ["dmidecode"], [/* 41 vars */]) = 0
brk(0)                                  = 0x31120000
faccessat(AT_FDCWD, "/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=70299, ...}) = 0
mmap(NULL, 70299, PROT_READ, MAP_PRIVATE, 3, 0) = 0x3ff9fb60000
close(3)                                = 0
openat(AT_FDCWD, "/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0\267\0\1\0\0\0\210\373\1\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=1953744, ...}) = 0
mmap(NULL, 1594256, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x3ff9f9d0000
mmap(0x3ff9fb40000, 131072, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x170000) = 0x3ff9fb40000
close(3)                                = 0
mprotect(0x3ff9fb40000, 65536, PROT_READ) = 0
mprotect(0x3ff9fbc0000, 65536, PROT_READ) = 0
munmap(0x3ff9fb60000, 70299)            = 0
fstat(1, {st_mode=S_IFIFO|0600, st_size=0, ...}) = 0
mmap(NULL, 65536, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x3ff9fb70000
brk(0)                                  = 0x31120000
brk(0x31150000)                         = 0x31150000
brk(0)                                  = 0x31150000
openat(AT_FDCWD, "/sys/firmware/efi/systab", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0400, st_size=65536, ...}) = 0
mmap(NULL, 65536, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x3ff9fb60000
read(3, "ACPI20=0x43fa397014\nACPI=0x43fa3"..., 65536) = 59
read(3, "", 65536)                      = 0
close(3)                                = 0
munmap(0x3ff9fb60000, 65536)            = 0
write(2, "/sys/firmware/efi/systab: SMBIOS"..., 53/sys/firmware/efi/systab: SMBIOS entry point missing
) = 53
write(1, "# dmidecode 2.12\n", 17# dmidecode 2.12
)      = 17
exit_group(1)                           = ?
+++ exited with 1 +++