[CentOS] Warning: Your BIOS is broken

Robert Moskowitz

rgm at htt-consult.com
Thu Feb 21 20:43:51 UTC 2013


I am getting the following on my 'new box' for my DNS server:

Date: Wed, 20 Feb 2013 13:58:04 -0500
From:
To:
Subject: [abrt] full crash report
User-Agent: Heirloom mailx 12.4 7/29/08

abrt_version:   2.0.8
cmdline:        ro root=/dev/mapper/vg_onlo3-root_01 rd_NO_LUKS 
rd_LVM_LV=vg_onlo3/root_01 LANG=en_US.UTF-8
+rd_NO_MD SYSFONT=latarcyrheb-sun16  KEYBOARDTYPE=pc KEYTABLE=us 
crashkernel=128M rhgb quiet rd_NO_DM rhgb
+quiet
kernel:         2.6.32-279.22.1.el6.i686
not-reportable: Your BIOS is broken
reason:         WARNING: at drivers/pci/dmar.c:594 
warn_invalid_dmar+0x7f/0xa0() (Not tainted)
time:           Wed 20 Feb 2013 01:57:36 PM EST

sosreport.tar.xz: Binary file, 460076 bytes

backtrace:
:WARNING: at drivers/pci/dmar.c:594 warn_invalid_dmar+0x7f/0xa0() (Not 
tainted)
:Hardware name: HP Compaq dc7800 Small Form Factor
:[Firmware Warn]: Your BIOS is broken; DMAR reported at address fed90000 
returns all ones!
:BIOS vendor: Hewlett-Packard; Ver: 786F1 v01.04; Product Version:
:Modules linked in:
:Pid: 0, comm: swapper Not tainted 2.6.32-279.22.1.el6.i686 #1
:Call Trace:
:[<c0455141>] ? warn_slowpath_common+0x81/0xc0
:[<c06217ff>] ? warn_invalid_dmar+0x7f/0xa0
:[<c06217ff>] ? warn_invalid_dmar+0x7f/0xa0
:[<c04551d3>] ? warn_slowpath_fmt_taint+0x33/0x40
:[<c06217ff>] ? warn_invalid_dmar+0x7f/0xa0
:[<c0abdeb8>] ? check_zero_address+0xfb/0x132
:[<c06608b7>] ? acpi_tb_verify_table+0x1d/0x46
:[<c0abdefd>] ? detect_intel_iommu+0xe/0x57
:[<c0aae15b>] ? mem_init+0x10/0x2ab
:[<c0828e00>] ? rcu_init_percpu_data.clone.0+0x87/0xa1
:[<c0828e00>] ? rcu_init_percpu_data.clone.0+0x87/0xa1
:[<c0828e00>] ? rcu_init_percpu_data.clone.0+0x87/0xa1
:[<c0828e00>] ? rcu_init_percpu_data.clone.0+0x87/0xa1
:[<c0828e00>] ? rcu_init_percpu_data.clone.0+0x87/0xa1
:[<c0828e00>] ? rcu_init_percpu_data.clone.0+0x87/0xa1
:[<c082ee00>] ? die_nmi+0x80/0xf0
:[<c082ee00>] ? die_nmi+0x80/0xf0
:[<c0828e00>] ? rcu_init_percpu_data.clone.0+0x87/0xa1
:[<c0828e00>] ? rcu_init_percpu_data.clone.0+0x87/0xa1
:[<c0a9781d>] ? start_kernel+0x1d1/0x3b5
:[<c0a9748a>] ? unknown_bootoption+0x0/0x190

Should I worry?





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