Looks like this: http://bugs.centos.org/view.php?id=5371 According to the latest comment in that thread the current kernel package 220.4.1 should have this fixed. Regards, Dennis On 02/06/2012 02:40 PM, Jonathan Vomacka wrote: > CentOS Community, > > Would someone who is familiar with reading boot messages and kernel > errors be able to assist with advising me on what the following errors > might mean in dmesg. It seems to come up randomly towards the end of the > logfile. > > ------------[ cut here ]------------ > WARNING: at arch/x86/kernel/cpu/mtrr/generic.c:467 > generic_get_mtrr+0x11e/0x140() (Not tainted) > Hardware name: empty > mtrr: your BIOS has set up an incorrect mask, fixing it up. > Modules linked in: > Pid: 0, comm: swapper Not tainted 2.6.32-220.2.1.el6.x86_64 #1 > Call Trace: > [<ffffffff81069997>] ? warn_slowpath_common+0x87/0xc0 > [<ffffffff81069a86>] ? warn_slowpath_fmt+0x46/0x50 > [<ffffffff8102713e>] ? generic_get_mtrr+0x11e/0x140 > [<ffffffff81c2bfd1>] ? mtrr_cleanup+0x8c/0x3fd > [<ffffffff81c2ae47>] ? get_mtrr_state+0x2ec/0x2fb > [<ffffffff81c2a988>] ? mtrr_bp_init+0x1ab/0x1d2 > [<ffffffff81c254d8>] ? setup_arch+0x4b8/0xaea > [<ffffffff814ec4c5>] ? printk+0x41/0x44 > [<ffffffff81c1fc2e>] ? start_kernel+0xdc/0x430 > [<ffffffff81c1f33a>] ? x86_64_start_reservations+0x125/0x129 > [<ffffffff81c1f438>] ? x86_64_start_kernel+0xfa/0x109 > ---[ end trace a7919e7f17c0a725 ]--- > > ------------[ cut here ]------------ > WARNING: at kernel/sched.c:5914 thread_return+0x232/0x79d() (Tainted: G > W > ---------------- ) > Hardware name: empty > Modules linked in: ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state > nf_conntrack ip6table_filter ip6_tables ipv6 raid1 e1000e serio_raw i2c_i801 > i2c_core sg iTCO_wdt iTCO_vendor_support ioatdma dca i5000_edac edac_core > i5k_amb shpchp ext4 mbcache jbd2 raid10 sd_mod crc_t10dif ahci pata_acpi > ata_generic ata_piix dm_mirror dm_region_hash dm_log dm_mod [last unloaded: > scsi_wait_scan] > Pid: 5696, comm: md1_resync Tainted: G W ---------------- > 2.6.32-220.2.1.el6.x86_64 #1 > Call Trace: > [<ffffffff81069997>] ? warn_slowpath_common+0x87/0xc0 > [<ffffffff810699ea>] ? warn_slowpath_null+0x1a/0x20 > [<ffffffff814eccc5>] ? thread_return+0x232/0x79d > [<ffffffffa0073654>] ? raise_barrier+0xb4/0x1e0 [raid10] > [<ffffffff8105e770>] ? default_wake_function+0x0/0x20 > [<ffffffffa00747d1>] ? sync_request+0x541/0xa70 [raid10] > [<ffffffffa0073599>] ? raid10_unplug+0x29/0x30 [raid10] > [<ffffffff813ea428>] ? is_mddev_idle+0xc8/0x120 > [<ffffffff813eab6d>] ? md_do_sync+0x6ad/0xbe0 > [<ffffffff813eb336>] ? md_thread+0x116/0x150 > [<ffffffff813eb220>] ? md_thread+0x0/0x150 > [<ffffffff810906a6>] ? kthread+0x96/0xa0 > [<ffffffff8100c14a>] ? child_rip+0xa/0x20 > [<ffffffff81090610>] ? kthread+0x0/0xa0 > [<ffffffff8100c140>] ? child_rip+0x0/0x20 > ---[ end trace a7919e7f17c0a727 ]--- > md: md1: data-check done. > > x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106 > ------------[ cut here ]------------ > WARNING: at arch/x86/kernel/cpu/mtrr/generic.c:467 > generic_get_mtrr+0x11e/0x140() (Not tainted) > Hardware name: empty > mtrr: your BIOS has set up an incorrect mask, fixing it up. > Modules linked in: > Pid: 0, comm: swapper Not tainted 2.6.32-220.4.1.el6.x86_64 #1 > Call Trace: > [<ffffffff81069a17>] ? warn_slowpath_common+0x87/0xc0 > [<ffffffff81069b06>] ? warn_slowpath_fmt+0x46/0x50 > [<ffffffff8102713e>] ? generic_get_mtrr+0x11e/0x140 > [<ffffffff81c2bfd1>] ? mtrr_cleanup+0x8c/0x3fd > [<ffffffff81c2ae47>] ? get_mtrr_state+0x2ec/0x2fb > [<ffffffff81c2a988>] ? mtrr_bp_init+0x1ab/0x1d2 > [<ffffffff81c254d8>] ? setup_arch+0x4b8/0xaea > [<ffffffff814ec3c6>] ? printk+0x41/0x43 > [<ffffffff81c1fc2e>] ? start_kernel+0xdc/0x430 > [<ffffffff81c1f33a>] ? x86_64_start_reservations+0x125/0x129 > [<ffffffff81c1f438>] ? x86_64_start_kernel+0xfa/0x109 > ---[ end trace a7919e7f17c0a725 ]--- > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos