エラーメッセージをデバッグしますか？

最近使用しているCentos 6サーバーがハングしてネットワークアクセスが失われているようです。ログに多くのエラーメッセージが表示され、ata5数回調査した結果、ドライブがsda（ルートファイルシステム）であることが確認されました。

同様の問題を抱えている別の記事では、SATAケーブルの交換を提案しましたが、これを実行しましたがエラーが解決しませんでした。

また、起動するたびに実行するように設定しましたfsck（ルートファイルシステムなので）。起動中に画面に実行中であることを示す内容がないため、実行中かどうかはわかりません（あるべきですか？）。デフォルトではmaximum mount count1に設定しますtune2fs。

時にはシステムが正常に動作しますが、週末に数日間空にして戻ってくると、システムが停止することがあります。簡単なハードリセットで元に戻すことができましたが、明らかに原因を特定する必要がありました。

May 26 14:05:21 centos kernel: ata7: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
May 26 14:05:21 centos kernel: ata5: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
May 26 14:05:21 centos kernel: ata7.00: ATA-7: SAMSUNG HD103UJ, 1AA01113, max UDMA7
May 26 14:05:21 centos kernel: ata7.00: 1953525168 sectors, multi 16: LBA48 NCQ (depth 31/32)
May 26 14:05:21 centos kernel: ata5.00: ATA-8: SanDisk SDSSDX120GG25, R211, max UDMA/133
May 26 14:05:21 centos kernel: ata5.00: 234441648 sectors, multi 16: LBA48 NCQ (depth 31/32)
May 26 14:05:21 centos kernel: ata7.00: configured for UDMA/133
May 26 14:05:21 centos kernel: ata5.00: configured for UDMA/133
May 26 14:05:21 centos kernel: ata4: SATA link down (SStatus 0 SControl 300)
May 26 14:05:21 centos kernel: scsi 4:0:0:0: Direct-Access     ATA      SanDisk SDSSDX12 R211 PQ: 0 ANSI: 5
May 26 14:05:21 centos kernel: ata6: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
May 26 14:05:21 centos kernel: ata6.00: ATA-8: ST31000524AS, JC4B, max UDMA/133
May 26 14:05:21 centos kernel: ata6.00: 1953525168 sectors, multi 16: LBA48 NCQ (depth 31/32)
May 26 14:05:21 centos kernel: ata6.00: configured for UDMA/133
May 26 14:05:21 centos kernel: scsi 5:0:0:0: Direct-Access     ATA      ST31000524AS     JC4B PQ: 0 ANSI: 5
May 26 14:05:21 centos kernel: scsi 6:0:0:0: Direct-Access     ATA      SAMSUNG HD103UJ  1AA0 PQ: 0 ANSI: 5
May 26 14:05:21 centos kernel: ata8: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
May 26 14:05:21 centos kernel: ata8.00: HPA detected: current 1953523055, native 1953525168
May 26 14:05:21 centos kernel: ata8.00: ATA-8: WDC WD10EARX-00N0YB0, 51.0AB51, max UDMA/133
May 26 14:05:21 centos kernel: ata8.00: 1953523055 sectors, multi 16: LBA48 NCQ (depth 31/32)
May 26 14:05:21 centos kernel: ata8.00: configured for UDMA/133
May 26 14:05:21 centos kernel: scsi 7:0:0:0: Direct-Access     ATA      WDC WD10EARX-00N 51.0 PQ: 0 ANSI: 5
May 26 14:05:21 centos kernel: ACPI: PCI Interrupt Link [AXV8] enabled at IRQ 16
May 26 14:05:21 centos kernel: ahci 0000:04:00.0: PCI INT A -> Link[AXV8] -> GSI 16 (level, low) -> IRQ 16
May 26 14:05:21 centos kernel: ahci 0000:04:00.0: AHCI 0001.0000 32 slots 2 ports 3 Gbps 0x3 impl SATA mode
May 26 14:05:21 centos kernel: ahci 0000:04:00.0: flags: 64bit ncq led clo pmp pio 
May 26 14:05:21 centos kernel: scsi8 : ahci
May 26 14:05:21 centos kernel: scsi9 : ahci
May 26 14:05:21 centos kernel: ata9: SATA max UDMA/133 abar m8192@0xdfcfe000 port 0xdfcfe100 irq 16
May 26 14:05:21 centos kernel: ata10: SATA max UDMA/133 abar m8192@0xdfcfe000 port 0xdfcfe180 irq 16
May 26 14:05:21 centos kernel: ata9: SATA link down (SStatus 0 SControl 300)
May 26 14:05:21 centos kernel: ata10: SATA link down (SStatus 0 SControl 300)
May 26 14:05:21 centos kernel: pata_jmicron 0000:04:00.1: PCI INT B -> Link[AXV5] -> GSI 16 (level, low) -> IRQ 16
May 26 14:05:21 centos kernel: scsi10 : pata_jmicron
May 26 14:05:21 centos kernel: scsi11 : pata_jmicron
May 26 14:05:21 centos kernel: ata11: PATA max UDMA/100 cmd 0x8c00 ctl 0x8800 bmdma 0x7c00 irq 16
May 26 14:05:21 centos kernel: ata12: PATA max UDMA/100 cmd 0x8400 ctl 0x8000 bmdma 0x7c08 irq 16
May 26 14:05:21 centos kernel: ACPI: PCI Interrupt Link [APC4] enabled at IRQ 19
May 26 14:05:21 centos kernel: firewire_ohci 0000:03:07.0: PCI INT A -> Link[APC4] -> GSI 19 (level, low) -> IRQ 19
May 26 14:05:21 centos kernel: firewire_ohci: Added fw-ohci device 0000:03:07.0, OHCI version 1.10
May 26 14:05:21 centos kernel: STARTING CRC_T10DIF
May 26 14:05:21 centos kernel: sd 4:0:0:0: [sda] 234441648 512-byte logical blocks: (120 GB/111 GiB)
May 26 14:05:21 centos kernel: sd 5:0:0:0: [sdb] 1953525168 512-byte logical blocks: (1.00 TB/931 GiB)
May 26 14:05:21 centos kernel: sd 4:0:0:0: [sda] Write Protect is off
May 26 14:05:21 centos kernel: sd 5:0:0:0: [sdb] Write Protect is off
May 26 14:05:21 centos kernel: sd 4:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
May 26 14:05:21 centos kernel: sd 6:0:0:0: [sdc] 1953525168 512-byte logical blocks: (1.00 TB/931 GiB)
May 26 14:05:21 centos kernel: sd 5:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
May 26 14:05:21 centos kernel: sd 6:0:0:0: [sdc] Write Protect is off
May 26 14:05:21 centos kernel: sd 6:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
May 26 14:05:21 centos kernel: sdb:
May 26 14:05:21 centos kernel: sdc:
May 26 14:05:21 centos kernel: sda:
May 26 14:05:21 centos kernel: sd 7:0:0:0: [sdd] 1953523055 512-byte logical blocks: (1.00 TB/931 GiB)
May 26 14:05:21 centos kernel: sd 7:0:0:0: [sdd] 4096-byte physical blocks
May 26 14:05:21 centos kernel: sd 7:0:0:0: [sdd] Write Protect is off
May 26 14:05:21 centos kernel: sd 7:0:0:0: [sdd] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
May 26 14:05:21 centos kernel: sdd: sda1 sda2
May 26 14:05:21 centos kernel: sd 4:0:0:0: [sda] Attached SCSI disk
May 26 14:05:21 centos kernel: sdc1
May 26 14:05:21 centos kernel: sd 6:0:0:0: [sdc] Attached SCSI disk
May 26 14:05:21 centos kernel: sdd1
May 26 14:05:21 centos kernel: sd 7:0:0:0: [sdd] Attached SCSI disk
May 26 14:05:21 centos kernel: sdb1
May 26 14:05:21 centos kernel: sd 5:0:0:0: [sdb] Attached SCSI disk
May 26 14:05:21 centos kernel: dracut: Scanning devices sda2  for LVM logical volumes vg_centos/lv_swap vg_centos/lv_root 
May 26 14:05:21 centos kernel: dracut: inactive '/dev/vg_centos/lv_root' [50.00 GiB] inherit
May 26 14:05:21 centos kernel: dracut: inactive '/dev/vg_centos/lv_home' [57.48 GiB] inherit
May 26 14:05:21 centos kernel: dracut: inactive '/dev/vg_centos/lv_swap' [3.81 GiB] inherit
May 26 14:05:21 centos kernel: EXT4-fs (dm-0): mounted filesystem with ordered data mode. Opts: 
May 26 14:05:21 centos kernel: dracut: Mounted root filesystem /dev/mapper/vg_centos-lv_root
May 26 14:05:21 centos kernel: SELinux:  Disabled at runtime.
May 26 14:05:21 centos kernel: firewire_core: created device fw0: GUID 56a213d400044b18, S400
May 26 14:05:21 centos kernel: type=1404 audit(1432645472.858:2): selinux=0 auid=4294967295 ses=4294967295
May 26 14:05:21 centos kernel: dracut: 
May 26 14:05:21 centos kernel: dracut: Switching root
May 26 14:05:21 centos kernel: ata5: EH in SWNCQ mode,QC:qc_active 0x60000007 sactive 0x60000007
May 26 14:05:21 centos kernel: ata5: SWNCQ:qc_active 0x60000001 defer_bits 0x6 last_issue_tag 0x0
May 26 14:05:21 centos kernel:  dhfis 0x60000001 dmafis 0x60000001 sdbfis 0x0
May 26 14:05:21 centos kernel: ata5: ATA_REG 0x40 ERR_REG 0x0
May 26 14:05:21 centos kernel: ata5: tag : dhfis dmafis sdbfis sacitve
May 26 14:05:21 centos kernel: ata5: tag 0x0: 1 1 0 1  
May 26 14:05:21 centos kernel: ata5: tag 0x1d: 1 1 0 1  
May 26 14:05:21 centos kernel: ata5: tag 0x1e: 1 1 0 1  
May 26 14:05:21 centos kernel: ata5.00: exception Emask 0x0 SAct 0x60000007 SErr 0x0 action 0x6 frozen
May 26 14:05:21 centos kernel: ata5.00: failed command: READ FPDMA QUEUED
May 26 14:05:21 centos kernel: ata5.00: cmd 60/90:00:c8:91:59/00:00:05:00:00/40 tag 0 ncq 73728 in
May 26 14:05:21 centos kernel:         res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
May 26 14:05:21 centos kernel: ata5.00: status: { DRDY }
May 26 14:05:21 centos kernel: ata5.00: failed command: READ FPDMA QUEUED
May 26 14:05:21 centos kernel: ata5.00: cmd 60/08:08:08:b5:0f/00:00:04:00:00/40 tag 1 ncq 4096 in
May 26 14:05:21 centos kernel:         res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
May 26 14:05:21 centos kernel: ata5.00: status: { DRDY }
May 26 14:05:21 centos kernel: ata5.00: failed command: READ FPDMA QUEUED
May 26 14:05:21 centos kernel: ata5.00: cmd 60/78:10:90:b5:0f/00:00:04:00:00/40 tag 2 ncq 61440 in
May 26 14:05:21 centos kernel:         res 40/00:01:00:00:00/00:00:00:00:00/e0 Emask 0x4 (timeout)
May 26 14:05:21 centos kernel: ata5.00: status: { DRDY }
May 26 14:05:21 centos kernel: ata5.00: failed command: READ FPDMA QUEUED
May 26 14:05:21 centos kernel: ata5.00: cmd 60/08:e8:00:b5:0f/00:00:04:00:00/40 tag 29 ncq 4096 in
May 26 14:05:21 centos kernel:         res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
May 26 14:05:21 centos kernel: ata5.00: status: { DRDY }
May 26 14:05:21 centos kernel: ata5.00: failed command: READ FPDMA QUEUED
May 26 14:05:21 centos kernel: ata5.00: cmd 60/80:f0:10:b5:0f/00:00:04:00:00/40 tag 30 ncq 65536 in
May 26 14:05:21 centos kernel:         res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
May 26 14:05:21 centos kernel: ata5.00: status: { DRDY }
May 26 14:05:21 centos kernel: ata5: hard resetting link
May 26 14:05:21 centos kernel: ata5: nv: skipping hardreset on occupied port
May 26 14:05:21 centos kernel: ata5: link is slow to respond, please be patient (ready=0)
May 26 14:05:21 centos kernel: ata5: SRST failed (errno=-16)
May 26 14:05:21 centos kernel: ata5: hard resetting link
May 26 14:05:21 centos kernel: ata5: nv: skipping hardreset on occupied port
May 26 14:05:21 centos kernel: ata5: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
May 26 14:05:21 centos kernel: ata5.00: configured for UDMA/133
May 26 14:05:21 centos kernel: ata5.00: device reported invalid CHS sector 0
May 26 14:05:21 centos kernel: ata5.00: device reported invalid CHS sector 0
May 26 14:05:21 centos kernel: ata5.00: device reported invalid CHS sector 0
May 26 14:05:21 centos kernel: ata5.00: device reported invalid CHS sector 0
May 26 14:05:21 centos kernel: ata5.00: device reported invalid CHS sector 0
May 26 14:05:21 centos kernel: sd 4:0:0:0: [sda]  Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
May 26 14:05:21 centos kernel: sd 4:0:0:0: [sda]  Sense Key : Aborted Command [current] [descriptor]
May 26 14:05:21 centos kernel: Descriptor sense data with sense descriptors (in hex):
May 26 14:05:21 centos kernel:        72 0b 00 00 00 00 00 0c 00 0a 80 00 00 00 00 00 
May 26 14:05:21 centos kernel:        00 00 00 00 
May 26 14:05:21 centos kernel: sd 4:0:0:0: [sda]  Add. Sense: No additional sense information
May 26 14:05:21 centos kernel: sd 4:0:0:0: [sda] CDB: Read(10): 28 00 04 0f b5 90 00 00 78 00
May 26 14:05:21 centos kernel: end_request: I/O error, dev sda, sector 68138384
May 26 14:05:21 centos kernel: sd 4:0:0:0: [sda]  Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
May 26 14:05:21 centos kernel: sd 4:0:0:0: [sda]  Sense Key : Aborted Command [current] [descriptor]
May 26 14:05:21 centos kernel: Descriptor sense data with sense descriptors (in hex):
May 26 14:05:21 centos kernel:        72 0b 00 00 00 00 00 0c 00 0a 80 00 00 00 00 00 
May 26 14:05:21 centos kernel:        00 00 00 00 
May 26 14:05:21 centos kernel: sd 4:0:0:0: [sda]  Add. Sense: No additional sense information
May 26 14:05:21 centos kernel: sd 4:0:0:0: [sda] CDB: Read(10): 28 00 04 0f b5 00 00 00 08 00
May 26 14:05:21 centos kernel: end_request: I/O error, dev sda, sector 68138240
May 26 14:05:21 centos kernel: sd 4:0:0:0: [sda]  Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
May 26 14:05:21 centos kernel: sd 4:0:0:0: [sda]  Sense Key : Aborted Command [current] [descriptor]
May 26 14:05:21 centos kernel: Descriptor sense data with sense descriptors (in hex):
May 26 14:05:21 centos kernel:        72 0b 00 00 00 00 00 0c 00 0a 80 00 00 00 00 00 
May 26 14:05:21 centos kernel:        00 00 00 00 
May 26 14:05:21 centos kernel: sd 4:0:0:0: [sda]  Add. Sense: No additional sense information
May 26 14:05:21 centos kernel: sd 4:0:0:0: [sda] CDB: Read(10): 28 00 04 0f b5 10 00 00 80 00
May 26 14:05:21 centos kernel: end_request: I/O error, dev sda, sector 68138256
May 26 14:05:21 centos kernel: ata5: EH complete
May 26 14:05:21 centos kernel: udev: starting version 147
May 26 14:05:21 centos kernel: ACPI: PCI Interrupt Link [AAZA] enabled at IRQ 23
May 26 14:05:21 centos kernel: snd_hda_intel 0000:00:0f.1: PCI INT B -> Link[AAZA] -> GSI 23 (level, low) -> IRQ 23
May 26 14:05:21 centos kernel: hda_intel: Disabling MSI
May 26 14:05:21 centos kernel: input: HDA NVidia Front Headphone as /devices/pci0000:00/0000:00:0f.1/sound/card0/input6
May 26 14:05:21 centos kernel: input: HDA NVidia Line Out Side as /devices/pci0000:00/0000:00:0f.1/sound/card0/input7
May 26 14:05:21 centos kernel: input: HDA NVidia Line Out CLFE as /devices/pci0000:00/0000:00:0f.1/sound/card0/input8
May 26 14:05:21 centos kernel: input: HDA NVidia Line Out Surround as /devices/pci0000:00/0000:00:0f.1/sound/card0/input9
May 26 14:05:21 centos kernel: input: HDA NVidia Line Out Front as /devices/pci0000:00/0000:00:0f.1/sound/card0/input10
May 26 14:05:21 centos kernel: input: HDA NVidia Line as /devices/pci0000:00/0000:00:0f.1/sound/card0/input11
May 26 14:05:21 centos kernel: input: HDA NVidia Rear Mic as /devices/pci0000:00/0000:00:0f.1/sound/card0/input12
May 26 14:05:21 centos kernel: input: HDA NVidia Front Mic as /devices/pci0000:00/0000:00:0f.1/sound/card0/input13
May 26 14:05:21 centos kernel: snd_hda_intel 0000:01:00.1: PCI INT B -> Link[AXV6] -> GSI 16 (level, low) -> IRQ 16
May 26 14:05:21 centos kernel: hda-intel 0000:01:00.1: Handle VGA-switcheroo audio client
May 26 14:05:21 centos kernel: input: HD-Audio Generic HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:02.0/0000:01:00.1/sound/card1/input14
May 26 14:05:21 centos kernel: i2c i2c-0: nForce2 SMBus adapter at 0xf400
May 26 14:05:21 centos kernel: i2c i2c-1: nForce2 SMBus adapter at 0xf000
May 26 14:05:21 centos kernel: sd 4:0:0:0: Attached scsi generic sg0 type 0
May 26 14:05:21 centos kernel: sd 5:0:0:0: Attached scsi generic sg1 type 0
May 26 14:05:21 centos kernel: sd 6:0:0:0: Attached scsi generic sg2 type 0
May 26 14:05:21 centos kernel: sd 7:0:0:0: Attached scsi generic sg3 type 0
May 26 14:05:21 centos kernel: forcedeth: Reverse Engineered nForce ethernet driver. Version 0.64.
May 26 14:05:21 centos kernel: ACPI: PCI Interrupt Link [AMAC] enabled at IRQ 22
May 26 14:05:21 centos kernel: forcedeth 0000:00:11.0: PCI INT A -> Link[AMAC] -> GSI 22 (level, low) -> IRQ 22
May 26 14:05:21 centos kernel: md: bind<sdb1>
May 26 14:05:21 centos kernel: forcedeth 0000:00:11.0: ifname eth0, PHY OUI 0x50ef @ 0, addr 00:04:4b:16:84:be
May 26 14:05:21 centos kernel: forcedeth 0000:00:11.0: highdma csum vlan pwrctl mgmt gbit lnktim msi desc-v3
May 26 14:05:21 centos kernel: ACPI: PCI Interrupt Link [AMA1] enabled at IRQ 23
May 26 14:05:21 centos kernel: forcedeth 0000:00:12.0: PCI INT A -> Link[AMA1] -> GSI 23 (level, low) -> IRQ 23
May 26 14:05:21 centos kernel: forcedeth 0000:00:12.0: ifname eth1, PHY OUI 0x50ef @ 1, addr 00:04:4b:16:84:bf
May 26 14:05:21 centos kernel: forcedeth 0000:00:12.0: highdma csum vlan pwrctl mgmt gbit lnktim msi desc-v3
May 26 14:05:21 centos kernel: md: bind<sdc1>
May 26 14:05:21 centos kernel: microcode: CPU0 sig=0x10677, pf=0x10, revision=0x703
May 26 14:05:21 centos kernel: platform microcode: firmware: requesting intel-ucode/06-17-07
May 26 14:05:21 centos kernel: microcode: CPU1 sig=0x10677, pf=0x10, revision=0x703
May 26 14:05:21 centos kernel: platform microcode: firmware: requesting intel-ucode/06-17-07
May 26 14:05:21 centos kernel: microcode: CPU2 sig=0x10677, pf=0x10, revision=0x703
May 26 14:05:21 centos kernel: platform microcode: firmware: requesting intel-ucode/06-17-07
May 26 14:05:21 centos kernel: md: raid1 personality registered for level 1
May 26 14:05:21 centos kernel: bio: create slab <bio-1> at 1
May 26 14:05:21 centos kernel: md/raid1:md127: active with 2 out of 2 mirrors
May 26 14:05:21 centos kernel: created bitmap (8 pages) for device md127
May 26 14:05:21 centos kernel: md127: bitmap initialized from disk: read 1 pages, set 0 of 14903 bits
May 26 14:05:21 centos kernel: microcode: CPU3 sig=0x10677, pf=0x10, revision=0x703
May 26 14:05:21 centos kernel: platform microcode: firmware: requesting intel-ucode/06-17-07
May 26 14:05:21 centos kernel: Microcode Update Driver: v2.00 <[email protected]>, Peter Oruba
May 26 14:05:21 centos kernel: md127: detected capacity change from 0 to 1000068022272
May 26 14:05:21 centos kernel: md127: unknown partition table
May 26 14:05:21 centos kernel: microcode: CPU0 updated to revision 0x70a, date = 2010-09-29 
May 26 14:05:21 centos kernel: microcode: CPU1 updated to revision 0x70a, date = 2010-09-29 
May 26 14:05:21 centos kernel: microcode: CPU2 updated to revision 0x70a, date = 2010-09-29 
May 26 14:05:21 centos kernel: microcode: CPU3 updated to revision 0x70a, date = 2010-09-29 
May 26 14:05:21 centos kernel: EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: 
May 26 14:05:21 centos kernel: EXT4-fs (dm-2): mounted filesystem with ordered data mode. Opts: 
May 26 14:05:21 centos kernel: EXT4-fs (sdd1): warning: maximal mount count reached, running e2fsck is recommended
May 26 14:05:21 centos kernel: EXT4-fs (sdd1): mounted filesystem with ordered data mode. Opts: 
May 26 14:05:21 centos kernel: EXT4-fs (md127): mounted filesystem with ordered data mode. Opts: 
May 26 14:05:21 centos kernel: Adding 3997692k swap on /dev/mapper/vg_centos-lv_swap.  Priority:-1 extents:1 across:3997692k SSD
May 26 14:05:21 centos kernel: NET: Registered protocol family 10
May 26 14:05:21 centos kernel: lo: Disabled Privacy Extensions
May 26 14:05:21 centos kernel: ip6_tables: (C) 2000-2006 Netfilter Core Team
May 26 14:05:21 centos kernel: nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
May 26 14:05:21 centos kernel: ip_tables: (C) 2000-2006 Netfilter Core Team
May 26 14:05:21 centos kernel: Bridge firewalling registered
May 26 14:05:21 centos kernel: device eth0 entered promiscuous mode
May 26 14:05:21 centos kernel: eth1: no link during initialization.
May 26 14:05:21 centos kernel: ADDRCONF(NETDEV_UP): eth1: link is not ready
May 26 14:05:21 centos kernel: device eth1 entered promiscuous mode
May 26 14:05:21 centos kernel: br0: port 1(eth0) entering forwarding state
May 26 14:05:21 centos kernel: eth1: link up.
May 26 14:05:21 centos kernel: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
May 26 14:05:21 centos kernel: br0: port 2(eth1) entering forwarding state
May 26 14:05:21 centos kernel: type=1305 audit(1432645521.660:3): audit_pid=1315 old=0 auid=4294967295 ses=4294967295 res=1
May 26 14:05:21 centos kernel: p4-clockmod: Warning: EST-capable CPU detected. The acpi-cpufreq module offers voltage scaling in addition to frequency scaling. You should use that instead of p4-clockmod, if possible.
May 26 14:05:22 centos rpc.statd[1411]: Version 1.2.3 starting
May 26 14:05:22 centos sm-notify[1412]: Version 1.2.3 starting
May 26 14:05:22 centos kdump: kexec: loaded kdump kernel
May 26 14:05:22 centos kdump: started up
May 26 14:05:22 centos acpid: starting up
May 26 14:05:22 centos acpid: 1 rule loaded
May 26 14:05:22 centos acpid: waiting for events: event logging is off
May 26 14:05:22 centos acpid: client connected from 1640[68:68]
May 26 14:05:22 centos acpid: 1 client rule loaded
May 26 14:05:22 centos kernel: w83627ehf: Found W83627DHG chip at 0x290
May 26 14:05:23 centos automount[1676]: lookup_read_master: lookup(nisplus): couldn't locate nis+ table auto.master
May 26 14:05:25 centos abrtd: Init complete, entering main loop
May 26 14:05:25 centos pptpd[2015]: MGR: connections limit (100) reached, extra IP addresses ignored
May 26 14:05:25 centos pptpd[2016]: MGR: Manager process started
May 26 14:05:25 centos pptpd[2016]: MGR: Maximum of 100 connections available
May 26 14:05:25 centos smbd[2043]: [2015/05/26 14:05:25.786741,  0] param/loadparm.c:7969(lp_do_parameter)
May 26 14:05:25 centos smbd[2043]:   Ignoring unknown parameter "symlinks"
May 26 14:05:34 centos kernel: br0: port 1(eth0) entering forwarding state
May 26 14:05:35 centos kernel: br0: port 2(eth1) entering forwarding state
May 26 14:06:02 centos kernel: ata5: EH in SWNCQ mode,QC:qc_active 0xF sactive 0xF
May 26 14:06:02 centos kernel: ata5: SWNCQ:qc_active 0x7 defer_bits 0x8 last_issue_tag 0x2
May 26 14:06:02 centos kernel:  dhfis 0x7 dmafis 0x7 sdbfis 0x0
May 26 14:06:02 centos kernel: ata5: ATA_REG 0x40 ERR_REG 0x0
May 26 14:06:02 centos kernel: ata5: tag : dhfis dmafis sdbfis sacitve
May 26 14:06:02 centos kernel: ata5: tag 0x0: 1 1 0 1  
May 26 14:06:02 centos kernel: ata5: tag 0x1: 1 1 0 1  
May 26 14:06:02 centos kernel: ata5: tag 0x2: 1 1 0 1  
May 26 14:06:02 centos kernel: ata5.00: exception Emask 0x0 SAct 0xf SErr 0x0 action 0x6 frozen
May 26 14:06:02 centos kernel: ata5.00: failed command: READ FPDMA QUEUED
May 26 14:06:02 centos kernel: ata5.00: cmd 60/08:00:f8:bf:20/00:00:00:00:00/40 tag 0 ncq 4096 in
May 26 14:06:02 centos kernel:         res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
May 26 14:06:02 centos kernel: ata5.00: status: { DRDY }
May 26 14:06:02 centos kernel: ata5.00: failed command: READ FPDMA QUEUED
May 26 14:06:02 centos kernel: ata5.00: cmd 60/48:08:68:c0:20/00:00:00:00:00/40 tag 1 ncq 36864 in
May 26 14:06:02 centos kernel:         res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
May 26 14:06:02 centos kernel: ata5.00: status: { DRDY }
May 26 14:06:02 centos kernel: ata5.00: failed command: READ FPDMA QUEUED
May 26 14:06:02 centos kernel: ata5.00: cmd 60/20:10:d8:c0:20/01:00:00:00:00/40 tag 2 ncq 147456 in
May 26 14:06:02 centos kernel:         res 40/00:01:00:00:00/00:00:00:00:00/e0 Emask 0x4 (timeout)
May 26 14:06:02 centos kernel: ata5.00: status: { DRDY }
May 26 14:06:02 centos kernel: ata5.00: failed command: READ FPDMA QUEUED
May 26 14:06:02 centos kernel: ata5.00: cmd 60/08:18:78:cf:d0/00:00:03:00:00/40 tag 3 ncq 4096 in
May 26 14:06:02 centos kernel:         res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
May 26 14:06:02 centos kernel: ata5.00: status: { DRDY }
May 26 14:06:02 centos kernel: ata5: hard resetting link
May 26 14:06:02 centos kernel: ata5: nv: skipping hardreset on occupied port
May 26 14:06:08 centos kernel: ata5: link is slow to respond, please be patient (ready=0)
May 26 14:06:12 centos kernel: ata5: SRST failed (errno=-16)
May 26 14:06:12 centos kernel: ata5: hard resetting link
May 26 14:06:12 centos kernel: ata5: nv: skipping hardreset on occupied port
May 26 14:06:13 centos kernel: ata5: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
May 26 14:06:13 centos kernel: ata5.00: configured for UDMA/133
May 26 14:06:13 centos kernel: ata5.00: device reported invalid CHS sector 0
May 26 14:06:13 centos kernel: ata5.00: device reported invalid CHS sector 0
May 26 14:06:13 centos kernel: ata5.00: device reported invalid CHS sector 0
May 26 14:06:13 centos kernel: ata5.00: device reported invalid CHS sector 0
May 26 14:06:13 centos kernel: ata5: EH complete
May 26 14:06:13 centos kernel: ata5: EH in SWNCQ mode,QC:qc_active 0xFF0 sactive 0xFF0
May 26 14:06:13 centos kernel: ata5: SWNCQ:qc_active 0xF0 defer_bits 0xF00 last_issue_tag 0x7
May 26 14:06:13 centos kernel:  dhfis 0xF0 dmafis 0xE0 sdbfis 0x0
May 26 14:06:13 centos kernel: ata5: ATA_REG 0x41 ERR_REG 0x84
May 26 14:06:13 centos kernel: ata5: tag : dhfis dmafis sdbfis sacitve
May 26 14:06:13 centos kernel: ata5: tag 0x4: 1 0 0 1  
May 26 14:06:13 centos kernel: ata5: tag 0x5: 1 1 0 1  
May 26 14:06:13 centos kernel: ata5: tag 0x6: 1 1 0 1  
May 26 14:06:13 centos kernel: ata5: tag 0x7: 1 1 0 1  
May 26 14:06:13 centos kernel: ata5.00: exception Emask 0x1 SAct 0xff0 SErr 0x0 action 0x6 frozen
May 26 14:06:13 centos kernel: ata5.00: Ata error. fis:0x21
May 26 14:06:13 centos kernel: ata5.00: failed command: READ FPDMA QUEUED
May 26 14:06:13 centos kernel: ata5.00: cmd 60/08:20:78:cf:d0/00:00:03:00:00/40 tag 4 ncq 4096 in
May 26 14:06:13 centos kernel:         res 41/84:38:f8:bf:20/84:00:00:00:00/40 Emask 0x10 (ATA bus error)
May 26 14:06:13 centos kernel: ata5.00: status: { DRDY ERR }
May 26 14:06:13 centos kernel: ata5.00: error: { ICRC ABRT }
May 26 14:06:13 centos kernel: ata5.00: failed command: READ FPDMA QUEUED
May 26 14:06:13 centos kernel: ata5.00: cmd 60/20:28:d8:c0:20/01:00:00:00:00/40 tag 5 ncq 147456 in
May 26 14:06:13 centos kernel:         res 41/84:38:f8:bf:20/84:00:00:00:00/40 Emask 0x10 (ATA bus error)
May 26 14:06:13 centos kernel: ata5.00: status: { DRDY ERR }
May 26 14:06:13 centos kernel: ata5.00: error: { ICRC ABRT }
May 26 14:06:13 centos kernel: ata5.00: failed command: READ FPDMA QUEUED
May 26 14:06:13 centos kernel: ata5.00: cmd 60/48:30:68:c0:20/00:00:00:00:00/40 tag 6 ncq 36864 in
May 26 14:06:13 centos kernel:         res 41/84:38:f8:bf:20/84:00:00:00:00/40 Emask 0x10 (ATA bus error)
May 26 14:06:13 centos kernel: ata5.00: status: { DRDY ERR }
May 26 14:06:13 centos kernel: ata5.00: error: { ICRC ABRT }
May 26 14:06:13 centos kernel: ata5.00: failed command: READ FPDMA QUEUED
May 26 14:06:13 centos kernel: ata5.00: cmd 60/08:38:f8:bf:20/00:00:00:00:00/40 tag 7 ncq 4096 in
May 26 14:06:13 centos kernel:         res 41/84:38:f8:bf:20/84:00:00:00:00/40 Emask 0x10 (ATA bus error)
May 26 14:06:13 centos kernel: ata5.00: status: { DRDY ERR }
May 26 14:06:13 centos kernel: ata5.00: error: { ICRC ABRT }
May 26 14:06:13 centos kernel: ata5.00: failed command: WRITE FPDMA QUEUED
May 26 14:06:13 centos kernel: ata5.00: cmd 61/08:40:b0:ff:d3/00:00:03:00:00/40 tag 8 ncq 4096 out
May 26 14:06:13 centos kernel:         res 41/84:38:f8:bf:20/84:00:00:00:00/40 Emask 0x10 (ATA bus error)
May 26 14:06:13 centos kernel: ata5.00: status: { DRDY ERR }
May 26 14:06:13 centos kernel: ata5.00: error: { ICRC ABRT }
May 26 14:06:13 centos kernel: ata5.00: failed command: WRITE FPDMA QUEUED
May 26 14:06:13 centos kernel: ata5.00: cmd 61/08:48:90:ca:3b/00:00:00:00:00/40 tag 9 ncq 4096 out
May 26 14:06:13 centos kernel:         res 41/84:38:f8:bf:20/84:00:00:00:00/40 Emask 0x10 (ATA bus error)
May 26 14:06:13 centos kernel: ata5.00: status: { DRDY ERR }
May 26 14:06:13 centos kernel: ata5.00: error: { ICRC ABRT }
May 26 14:06:13 centos kernel: ata5.00: failed command: WRITE FPDMA QUEUED
May 26 14:06:13 centos kernel: ata5.00: cmd 61/08:50:08:e0:3f/00:00:00:00:00/40 tag 10 ncq 4096 out
May 26 14:06:13 centos kernel:         res 41/84:38:f8:bf:20/84:00:00:00:00/40 Emask 0x10 (ATA bus error)
May 26 14:06:13 centos kernel: ata5.00: status: { DRDY ERR }
May 26 14:06:13 centos kernel: ata5.00: error: { ICRC ABRT }
May 26 14:06:13 centos kernel: ata5.00: failed command: WRITE FPDMA QUEUED
May 26 14:06:13 centos kernel: ata5.00: cmd 61/c8:58:48:b9:13/01:00:03:00:00/40 tag 11 ncq 233472 out
May 26 14:06:13 centos kernel:         res 41/84:38:f8:bf:20/84:00:00:00:00/40 Emask 0x10 (ATA bus error)
May 26 14:06:13 centos kernel: ata5.00: status: { DRDY ERR }
May 26 14:06:13 centos kernel: ata5.00: error: { ICRC ABRT }
May 26 14:06:13 centos kernel: ata5: hard resetting link
May 26 14:06:13 centos kernel: ata5: nv: skipping hardreset on occupied port
May 26 14:06:14 centos kernel: ata5: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
May 26 14:06:14 centos kernel: ata5.00: configured for UDMA/133
May 26 14:06:14 centos kernel: ata5: EH complete