WARNING: at arch/x86/mm/ioremap.c:526 __early_ioremap+0x98/0x248()

Issue

• The following backtrace appear in the /var/log/messages during system startup.

SMBIOS 3.0.0 present.
kernel: ------------[ cut here ]------------
kernel: WARNING: at arch/x86/mm/ioremap.c:526 __early_ioremap+0x98/0x248() (Not tainted)
kernel: Modules linked in:
kernel: Pid: 0, comm: swapper Not tainted 2.6.32-642.1.1.el6.x86_64 #1
kernel: Call Trace:
kernel: [<ffffffff8107c911>] ? warn_slowpath_common+0x91/0xe0
kernel: [<ffffffff8107c97a>] ? warn_slowpath_null+0x1a/0x20
kernel: [<ffffffff81c58e4e>] ? __early_ioremap+0x98/0x248
kernel: [<ffffffff81c7b464>] ? dmi_smbios3_present+0xb0/0xfb
kernel: [<ffffffff81c7ace5>] ? count_mem_devices+0x0/0x12
kernel: [<ffffffff81c59026>] ? early_ioremap+0x13/0x15
kernel: [<ffffffff81c7ad48>] ? dmi_walk_early+0x25/0x52
kernel: [<ffffffff81c7ae12>] ? dmi_memdev_walk+0x19/0x50
kernel: [<ffffffff81c40602>] ? setup_arch+0x429/0xccb
kernel: [<ffffffff8107db7e>] ? vprintk_default+0xe/0x10
kernel: [<ffffffff81546fc2>] ? printk+0x4f/0x55
kernel: [<ffffffff81c3adda>] ? start_kernel+0xdc/0x431
kernel: [<ffffffff81c3a33a>] ? x86_64_start_reservations+0x125/0x129
kernel: [<ffffffff81c3a453>] ? x86_64_start_kernel+0x115/0x124
kernel: ---[ end trace a7919e7f17c0a725 ]---