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Old 09-26-2011, 07:11 PM
Benjamin Smith
 
Default Hard I/O lockup with EL6

I'm trying to figure out why 2 machines have a "hard I/O lock" on the HDD when
running EL6.

I have 4 identical machines, all were stable with EL5. 2 work great with EL6,
2 do not. I've checked momtherboard BIOS versions and settings, SAS controller
BIOS versions and settings, they are the same between the working and non-
working systems.

When booting a non-working system, it boots straight up to the boot prompt
(runlevel 3) without issue, and everything works fine. When the machine sits
idle for a period of time (ranging from 15 minutes or so and up) the HDD
becomes unreadable/unwritable and the system is useless for any purpose and
must be hard restarted with a full power cycle - it won't even shut down.

Since nothing is logged, I've had precious little information to diagnose
with. After several attempts to find out what's going on, I find the following
emitted to the screen:

mpt2sas0: diag reset: FAILED
mpt2sas0: diag reset: FAILED
mpt2sas0: diag reset: FAILED
end_request: I/O error, dev sda, sector 226972349
Buffer I/O error, device sda5, logical block 2719747
sd 0:0:0:0rejecting I/O to offline device
sd 0:0:0:0rejecting I/O to offline device
sd 0:0:0:0rejecting I/O to offline device

This is NOT due to a faulty HDD: I've tried new hard disks, SATA/SAS, I've
swapped hard disks with an identical working unit and verified that the working
unit remains working and the failing unit continues to fail. I've reformatted
and re-installed EL6 numerous times with consistent results.

Googling this error returned very little useful information: where should I go
now? Below, please find outputs of dmesg and lspci. I've compared outputs of
dmesg between working and nonworking systems, the output of anything with
"mpt" at the beginning is identical except for different IRQ ports.

Dump of dmesg:
Initializing cgroup subsys cpuset
Initializing cgroup subsys cpu
Linux version 2.6.32-71.29.1.el6.x86_64 (mockbuild@c6b5.bsys.dev.centos.org)
(gcc version 4.4.4 20100726 (Red Hat 4.4.4-13) (GCC) ) #1 SMP Mon Jun 27
19:49:27 BST 2011
Command line: ro root=UUID=3653eebb-f6b7-4e90-8365-26f4eccaa960 rd_NO_LUKS
rd_NO_LVM rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16
KEYBOARDTYPE=pc KEYTABLE=us crashkernel=auto rhgb quiet acpi=off
KERNEL supported cpus:
Intel GenuineIntel
AMD AuthenticAMD
Centaur CentaurHauls
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009dc00 (usable)
BIOS-e820: 000000000009dc00 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 00000000bf7d0000 (usable)
BIOS-e820: 00000000bf7d0000 - 00000000bf7e0000 (reserved)
BIOS-e820: 00000000bf7ed000 - 00000000c0000000 (reserved)
BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved)
BIOS-e820: 00000000fed20000 - 00000000fed40000 (reserved)
BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
BIOS-e820: 0000000100000000 - 0000000440000000 (usable)
DMI present.
AMI BIOS detected: BIOS may corrupt low RAM, working around it.
e820 update range: 0000000000000000 - 0000000000010000 (usable) ==> (reserved)
e820 update range: 0000000000000000 - 0000000000001000 (usable) ==> (reserved)
e820 remove range: 00000000000a0000 - 0000000000100000 (usable)
last_pfn = 0x440000 max_arch_pfn = 0x400000000
MTRR default type: uncachable
MTRR fixed ranges enabled:
00000-9FFFF write-back
A0000-BFFFF uncachable
C0000-CFFFF write-protect
D0000-DFFFF uncachable
E0000-E3FFF write-protect
E4000-E7FFF write-through
E8000-EBFFF write-protect
EC000-EFFFF write-through
F0000-FFFFF write-protect
MTRR variable ranges enabled:
0 base 000000000 mask C00000000 write-back
1 base 400000000 mask FC0000000 write-back
2 base 0C0000000 mask FC0000000 uncachable
3 disabled
4 disabled
5 disabled
6 disabled
7 disabled
x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106
original variable MTRRs
reg 0, base: 0GB, range: 16GB, type WB
reg 1, base: 16GB, range: 1GB, type WB
reg 2, base: 3GB, range: 1GB, type UC
total RAM covered: 16384M
Found optimal setting for mtrr clean up
gran_size: 64K chunk_size: 64K num_reg: 5 lose cover RAM: 0G
New variable MTRRs
reg 0, base: 0GB, range: 2GB, type WB
reg 1, base: 2GB, range: 1GB, type WB
reg 2, base: 4GB, range: 4GB, type WB
reg 3, base: 8GB, range: 8GB, type WB
reg 4, base: 16GB, range: 1GB, type WB
e820 update range: 00000000c0000000 - 0000000100000000 (usable) ==> (reserved)
last_pfn = 0xbf7d0 max_arch_pfn = 0x400000000
initial memory mapped : 0 - 20000000
init_memory_mapping: 0000000000000000-00000000bf7d0000
0000000000 - 00bf600000 page 2M
00bf600000 - 00bf7d0000 page 4k
kernel direct mapping tables up to bf7d0000 @ 10000-15000
init_memory_mapping: 0000000100000000-0000000440000000
0100000000 - 0440000000 page 2M
kernel direct mapping tables up to 440000000 @ 13000-25000
RAMDISK: 37515000 - 37fefb62
No NUMA configuration found
Faking a node at 0000000000000000-0000000440000000
Bootmem setup node 0 0000000000000000-0000000440000000
NODE_DATA [0000000000020000 - 0000000000053fff]
bootmap [0000000000100000 - 0000000000187fff] pages 88
(8 early reservations) ==> bootmem [0000000000 - 0440000000]
#0 [0000000000 - 0000001000] BIOS data page ==> [0000000000 - 0000001000]
#1 [0000006000 - 0000008000] TRAMPOLINE ==> [0000006000 - 0000008000]
#2 [0001000000 - 0001ca0ff8] TEXT DATA BSS ==> [0001000000 - 0001ca0ff8]
#3 [0037515000 - 0037fefb62] RAMDISK ==> [0037515000 - 0037fefb62]
#4 [000009dc00 - 0000100000] BIOS reserved ==> [000009dc00 - 0000100000]
#5 [0001ca1000 - 0001ca121b] BRK ==> [0001ca1000 - 0001ca121b]
#6 [0000010000 - 0000013000] PGTABLE ==> [0000010000 - 0000013000]
#7 [0000013000 - 0000020000] PGTABLE ==> [0000013000 - 0000020000]
found SMP MP-table at [ffff8800000ff780] ff780
Reserving 129MB of memory at 32MB for crashkernel (System RAM: 17408MB)
[ffffea0000000000-ffffea000edfffff] PMD -> [ffff880028600000-ffff8800365fffff] on node 0
Zone PFN ranges:
DMA 0x00000010 -> 0x00001000
DMA32 0x00001000 -> 0x00100000
Normal 0x00100000 -> 0x00440000
Movable zone start PFN for each node
early_node_map[3] active PFN ranges
0: 0x00000010 -> 0x0000009d
0: 0x00000100 -> 0x000bf7d0
0: 0x00100000 -> 0x00440000
On node 0 totalpages: 4192093
DMA zone: 56 pages used for memmap
DMA zone: 117 pages reserved
DMA zone: 3808 pages, LIFO batch:0
DMA32 zone: 14280 pages used for memmap
DMA32 zone: 765960 pages, LIFO batch:31
Normal zone: 46592 pages used for memmap
Normal zone: 3361280 pages, LIFO batch:31
SFI: Simple Firmware Interface v0.7 http://simplefirmware.org
Intel MultiProcessor Specification v1.4
MPTABLE: OEM ID: INTEL
MPTABLE: Product ID: FOXHOLLOW
MPTABLE: APIC at: 0xFEE00000
Processor #0 (Bootup-CPU)
Processor #2
Processor #4
Processor #6
I/O APIC #1 Version 32 at 0xFEC00000.
Processors: 4
SMP: Allowing 4 CPUs, 0 hotplug CPUs
nr_irqs_gsi: 24
PM: Registered nosave memory: 000000000009d000 - 000000000009e000
PM: Registered nosave memory: 000000000009e000 - 00000000000a0000
PM: Registered nosave memory: 00000000000a0000 - 00000000000e0000
PM: Registered nosave memory: 00000000000e0000 - 0000000000100000
PM: Registered nosave memory: 00000000bf7d0000 - 00000000bf7e0000
PM: Registered nosave memory: 00000000bf7e0000 - 00000000bf7ed000
PM: Registered nosave memory: 00000000bf7ed000 - 00000000c0000000
PM: Registered nosave memory: 00000000c0000000 - 00000000e0000000
PM: Registered nosave memory: 00000000e0000000 - 00000000f0000000
PM: Registered nosave memory: 00000000f0000000 - 00000000fed20000
PM: Registered nosave memory: 00000000fed20000 - 00000000fed40000
PM: Registered nosave memory: 00000000fed40000 - 00000000fee00000
PM: Registered nosave memory: 00000000fee00000 - 00000000fee01000
PM: Registered nosave memory: 00000000fee01000 - 0000000100000000
Allocating PCI resources starting at c0000000 (gap: c0000000:20000000)
Booting paravirtualized kernel on bare hardware
NR_CPUS:4096 nr_cpumask_bits:4 nr_cpu_ids:4 nr_node_ids:1
PERCPU: Embedded 31 pages/cpu @ffff880028200000 s95064 r8192 d23720 u524288
pcpu-alloc: s95064 r8192 d23720 u524288 alloc=1*2097152
pcpu-alloc: [0] 0 1 2 3
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 4131048
Policy zone: Normal
Kernel command line: ro root=UUID=3653eebb-f6b7-4e90-8365-26f4eccaa960
rd_NO_LUKS rd_NO_LVM rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-
sun16 KEYBOARDTYPE=pc KEYTABLE=us crashkernel=129M@0M rhgb quiet acpi=off
PID hash table entries: 4096 (order: 3, 32768 bytes)
Checking aperture...
No AGP bridge found
AMD-Vi disabled by default: pass amd_iommu=on to enable
PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
Placing 64MB software IO TLB between ffff880020000000 - ffff880024000000
software IO TLB at phys 0x20000000 - 0x24000000
Memory: 16315744k/17825792k available (4939k kernel code, 1057420k absent,
452628k reserved, 3931k data, 1220k init)
Hierarchical RCU implementation.
NR_IRQS:33024 nr_irqs:440
Console: colour VGA+ 80x25
console [tty0] enabled
allocated 167772160 bytes of page_cgroup
please try 'cgroup_disable=memory' option if you don't want memory cgroups
Fast TSC calibration using PIT
Detected 2666.323 MHz processor.
Calibrating delay loop (skipped), value calculated using timer frequency..
5332.64 BogoMIPS (lpj=2666323)
pid_max: default: 32768 minimum: 301
Security Framework initialized
SELinux: Initializing.
SELinux: Starting in permissive mode
Dentry cache hash table entries: 2097152 (order: 12, 16777216 bytes)
Inode-cache hash table entries: 1048576 (order: 11, 8388608 bytes)
Mount-cache hash table entries: 256
Initializing cgroup subsys ns
Initializing cgroup subsys cpuacct
Initializing cgroup subsys memory
Initializing cgroup subsys devices
Initializing cgroup subsys freezer
Initializing cgroup subsys net_cls
Initializing cgroup subsys blkio
CPU: Physical Processor ID: 0
CPU: Processor Core ID: 0
mce: CPU supports 9 MCE banks
CPU0: Thermal monitoring enabled (TM1)
using mwait in idle threads.
Performance Events: PEBS fmt1+, Nehalem events, Intel PMU driver.
... version: 3
... bit width: 48
... generic registers: 4
... value mask: 0000ffffffffffff
... max period: 000000007fffffff
... fixed-purpose events: 3
... event mask: 000000070000000f
ftrace: converting mcount calls to 0f 1f 44 00 00
ftrace: allocating 20293 entries in 80 pages
Setting APIC routing to flat
ExtINT not setup in hardware but reported by MP table
alloc irq_desc for 16 on node 0
alloc kstat_irqs on node 0
alloc irq_desc for 17 on node 0
alloc kstat_irqs on node 0
alloc irq_desc for 18 on node 0
alloc kstat_irqs on node 0
alloc irq_desc for 19 on node 0
alloc kstat_irqs on node 0
alloc irq_desc for 21 on node 0
alloc kstat_irqs on node 0
alloc irq_desc for 23 on node 0
alloc kstat_irqs on node 0
..TIMER: vector=0x30 apic1=0 pin1=2 apic2=0 pin2=0
CPU0: Intel(R) Xeon(R) CPU X3450 @ 2.67GHz stepping 05
Booting Node 0, Processors #1 #2 #3 Ok.
Brought up 4 CPUs
Total of 4 processors activated (21328.27 BogoMIPS).
Testing NMI watchdog ... OK.
sizeof(vma)=200 bytes
sizeof(page)=56 bytes
sizeof(inode)=592 bytes
sizeof(dentry)=192 bytes
sizeof(ext3inode)=800 bytes
sizeof(buffer_head)=104 bytes
sizeof(skbuff)=232 bytes
sizeof(task_struct)=2600 bytes
devtmpfs: initialized
regulator: core version 0.5
NET: Registered protocol family 16
PCI: Using configuration type 1 for base access
bio: create slab <bio-0> at 0
ACPI: Interpreter disabled.
vgaarb: loaded
SCSI subsystem initialized
libata version 3.00 loaded.
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
PCI: Probing PCI hardware
PCI: Probing PCI hardware (bus 00)
pci 0000:00:03.0: PME# supported from D0 D3hot D3cold
pci 0000:00:03.0: PME# disabled
pci 0000:00:05.0: PME# supported from D0 D3hot D3cold
pci 0000:00:05.0: PME# disabled
pci 0000:00:1a.0: reg 10 32bit mmio: [0xfb3fc000-0xfb3fc3ff]
pci 0000:00:1a.0: PME# supported from D0 D3hot D3cold
pci 0000:00:1a.0: PME# disabled
pci 0000:00:1c.0: PME# supported from D0 D3hot D3cold
pci 0000:00:1c.0: PME# disabled
pci 0000:00:1c.4: PME# supported from D0 D3hot D3cold
pci 0000:00:1c.4: PME# disabled
pci 0000:00:1c.5: PME# supported from D0 D3hot D3cold
pci 0000:00:1c.5: PME# disabled
pci 0000:00:1d.0: reg 10 32bit mmio: [0xfb3fa000-0xfb3fa3ff]
pci 0000:00:1d.0: PME# supported from D0 D3hot D3cold
pci 0000:00:1d.0: PME# disabled
pci 0000:00:1f.2: reg 10 io port: [0xbc00-0xbc07]
pci 0000:00:1f.2: reg 14 io port: [0xb880-0xb883]
pci 0000:00:1f.2: reg 18 io port: [0xb800-0xb807]
pci 0000:00:1f.2: reg 1c io port: [0xb480-0xb483]
pci 0000:00:1f.2: reg 20 io port: [0xb400-0xb40f]
pci 0000:00:1f.2: reg 24 io port: [0xb080-0xb08f]
pci 0000:00:1f.3: reg 10 64bit mmio: [0xfb3f8000-0xfb3f80ff]
pci 0000:00:1f.3: reg 20 io port: [0x400-0x41f]
pci 0000:00:1f.5: reg 10 io port: [0xac00-0xac07]
pci 0000:00:1f.5: reg 14 io port: [0xa880-0xa883]
pci 0000:00:1f.5: reg 18 io port: [0xa800-0xa807]
pci 0000:00:1f.5: reg 1c io port: [0xa480-0xa483]
pci 0000:00:1f.5: reg 20 io port: [0xa400-0xa40f]
pci 0000:00:1f.5: reg 24 io port: [0xa080-0xa08f]
pci 0000:02:00.0: reg 10 io port: [0xc000-0xc0ff]
pci 0000:02:00.0: reg 14 64bit mmio: [0xfb43c000-0xfb43ffff]
pci 0000:02:00.0: reg 1c 64bit mmio: [0xfb440000-0xfb47ffff]
pci 0000:02:00.0: reg 30 32bit mmio pref: [0xfb480000-0xfb4fffff]
pci 0000:02:00.0: supports D1 D2
pci 0000:00:05.0: bridge io port: [0xc000-0xcfff]
pci 0000:00:05.0: bridge 32bit mmio: [0xfb400000-0xfb4fffff]
pci 0000:04:00.0: reg 10 32bit mmio: [0xfb5e0000-0xfb5fffff]
pci 0000:04:00.0: reg 18 io port: [0xdc00-0xdc1f]
pci 0000:04:00.0: reg 1c 32bit mmio: [0xfb5dc000-0xfb5dffff]
pci 0000:04:00.0: PME# supported from D0 D3hot D3cold
pci 0000:04:00.0: PME# disabled
pci 0000:00:1c.4: bridge io port: [0xd000-0xdfff]
pci 0000:00:1c.4: bridge 32bit mmio: [0xfb500000-0xfb5fffff]
pci 0000:05:00.0: reg 10 32bit mmio: [0xfb6e0000-0xfb6fffff]
pci 0000:05:00.0: reg 18 io port: [0xec00-0xec1f]
pci 0000:05:00.0: reg 1c 32bit mmio: [0xfb6dc000-0xfb6dffff]
pci 0000:05:00.0: PME# supported from D0 D3hot D3cold
pci 0000:05:00.0: PME# disabled
pci 0000:00:1c.5: bridge io port: [0xe000-0xefff]
pci 0000:00:1c.5: bridge 32bit mmio: [0xfb600000-0xfb6fffff]
pci 0000:06:03.0: reg 10 32bit mmio pref: [0xfa000000-0xfaffffff]
pci 0000:06:03.0: reg 14 32bit mmio: [0xfb7fc000-0xfb7fffff]
pci 0000:06:03.0: reg 18 32bit mmio: [0xfb800000-0xfbffffff]
pci 0000:00:1e.0: transparent bridge
pci 0000:00:1e.0: bridge 32bit mmio: [0xfb700000-0xfbffffff]
pci 0000:00:1e.0: bridge 64bit mmio pref: [0xfa000000-0xfaffffff]
vgaarb: device added: PCI:0000:06:03.0,decodes=io+mem,owns=io+mem,locks= none
pci 0000:00:1f.0: PIIX/ICH IRQ router [8086:3b14]
PCI: old code would have set cacheline size to 32 bytes, but clflush_size = 64
PCI: pci_cache_line_size set to 64 bytes
NetLabel: Initializing
NetLabel: domain hash size = 128
NetLabel: protocols = UNLABELED CIPSOv4
NetLabel: unlabeled traffic allowed by default
Switching to clocksource tsc
pnp: PnP ACPI: disabled
pci 0000:00:03.0: PCI bridge to [bus 01-01]
pci 0000:00:03.0: PCI bridge, secondary bus 0000:01
pci 0000:00:03.0: bridge window [io disabled]
pci 0000:00:03.0: bridge window [mem disabled]
pci 0000:00:03.0: bridge window [mem pref disabled]
pci 0000:00:05.0: PCI bridge to [bus 02-02]
pci 0000:00:05.0: PCI bridge, secondary bus 0000:02
pci 0000:00:05.0: bridge window [0xc000-0xcfff]
pci 0000:00:05.0: bridge window [0xfb400000-0xfb4fffff]
pci 0000:00:05.0: bridge window [mem pref disabled]
pci 0000:00:1c.0: PCI bridge to [bus 03-03]
pci 0000:00:1c.0: PCI bridge, secondary bus 0000:03
pci 0000:00:1c.0: bridge window [0x1000-0x1fff]
pci 0000:00:1c.0: bridge window [0xc0000000-0xc01fffff]
pci 0000:00:1c.0: bridge window [0xc0200000-0xc03fffff]
pci 0000:00:1c.4: PCI bridge to [bus 04-04]
pci 0000:00:1c.4: PCI bridge, secondary bus 0000:04
pci 0000:00:1c.4: bridge window [0xd000-0xdfff]
pci 0000:00:1c.4: bridge window [0xfb500000-0xfb5fffff]
pci 0000:00:1c.4: bridge window [0xc0400000-0xc05fffff]
pci 0000:00:1c.5: PCI bridge to [bus 05-05]
pci 0000:00:1c.5: PCI bridge, secondary bus 0000:05
pci 0000:00:1c.5: bridge window [0xe000-0xefff]
pci 0000:00:1c.5: bridge window [0xfb600000-0xfb6fffff]
pci 0000:00:1c.5: bridge window [0xc0600000-0xc07fffff]
pci 0000:00:1e.0: PCI bridge to [bus 06-06]
pci 0000:00:1e.0: PCI bridge, secondary bus 0000:06
pci 0000:00:1e.0: bridge window [io disabled]
pci 0000:00:1e.0: bridge window [0xfb700000-0xfbffffff]
pci 0000:00:1e.0: bridge window [0xfa000000-0xfaffffff]
pci 0000:00:03.0: PCI->APIC IRQ transform: INT A -> IRQ 16
pci 0000:00:03.0: setting latency timer to 64
pci 0000:00:05.0: PCI->APIC IRQ transform: INT A -> IRQ 16
pci 0000:00:05.0: setting latency timer to 64
pci 0000:00:1c.0: enabling device (0104 -> 0107)
pci 0000:00:1c.0: PCI->APIC IRQ transform: INT A -> IRQ 17
pci 0000:00:1c.0: setting latency timer to 64
pci 0000:00:1c.4: PCI->APIC IRQ transform: INT A -> IRQ 17
pci 0000:00:1c.4: setting latency timer to 64
pci 0000:00:1c.5: PCI->APIC IRQ transform: INT B -> IRQ 16
pci 0000:00:1c.5: setting latency timer to 64
pci 0000:00:1e.0: setting latency timer to 64
pci_bus 0000:00: resource 0 io: [0x00-0xffff]
pci_bus 0000:00: resource 1 mem: [0x000000-0xffffffffffffffff]
pci_bus 0000:02: resource 0 io: [0xc000-0xcfff]
pci_bus 0000:02: resource 1 mem: [0xfb400000-0xfb4fffff]
pci_bus 0000:03: resource 0 io: [0x1000-0x1fff]
pci_bus 0000:03: resource 1 mem: [0xc0000000-0xc01fffff]
pci_bus 0000:03: resource 2 pref mem [0xc0200000-0xc03fffff]
pci_bus 0000:04: resource 0 io: [0xd000-0xdfff]
pci_bus 0000:04: resource 1 mem: [0xfb500000-0xfb5fffff]
pci_bus 0000:04: resource 2 pref mem [0xc0400000-0xc05fffff]
pci_bus 0000:05: resource 0 io: [0xe000-0xefff]
pci_bus 0000:05: resource 1 mem: [0xfb600000-0xfb6fffff]
pci_bus 0000:05: resource 2 pref mem [0xc0600000-0xc07fffff]
pci_bus 0000:06: resource 1 mem: [0xfb700000-0xfbffffff]
pci_bus 0000:06: resource 2 pref mem [0xfa000000-0xfaffffff]
pci_bus 0000:06: resource 3 io: [0x00-0xffff]
pci_bus 0000:06: resource 4 mem: [0x000000-0xffffffffffffffff]
NET: Registered protocol family 2
IP route cache hash table entries: 524288 (order: 10, 4194304 bytes)
TCP established hash table entries: 524288 (order: 11, 8388608 bytes)
TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
TCP: Hash tables configured (established 524288 bind 65536)
TCP reno registered
NET: Registered protocol family 1
pci 0000:06:03.0: Boot video device
Trying to unpack rootfs image as initramfs...
Freeing initrd memory: 11114k freed
platform rtc_cmos: registered platform RTC device (no PNP device found)
audit: initializing netlink socket (disabled)
type=2000 audit(1317063573.647:1): initialized
HugeTLB registered 2 MB page size, pre-allocated 0 pages
VFS: Disk quotas dquot_6.5.2
Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
msgmni has been set to 31888
SELinux: Registering netfilter hooks
alg: No test for stdrng (krng)
ksign: Installing public key data
Loading keyring
- Added public key 965331713A640F69
- User ID: CentOS (Kernel Module GPG key)
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
alloc irq_desc for 24 on node -1
alloc kstat_irqs on node -1
pcieport 0000:00:03.0: irq 24 for MSI/MSI-X
pcieport 0000:00:03.0: setting latency timer to 64
alloc irq_desc for 25 on node -1
alloc kstat_irqs on node -1
pcieport 0000:00:05.0: irq 25 for MSI/MSI-X
pcieport 0000:00:05.0: setting latency timer to 64
alloc irq_desc for 26 on node -1
alloc kstat_irqs on node -1
pcieport 0000:00:1c.0: irq 26 for MSI/MSI-X
pcieport 0000:00:1c.0: setting latency timer to 64
alloc irq_desc for 27 on node -1
alloc kstat_irqs on node -1
pcieport 0000:00:1c.4: irq 27 for MSI/MSI-X
pcieport 0000:00:1c.4: setting latency timer to 64
alloc irq_desc for 28 on node -1
alloc kstat_irqs on node -1
pcieport 0000:00:1c.5: irq 28 for MSI/MSI-X
pcieport 0000:00:1c.5: setting latency timer to 64
pci_hotplug: PCI Hot Plug PCI Core version: 0.5
pciehp: PCI Express Hot Plug Controller Driver version: 0.4
acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
pci-stub: invalid id string ""
Non-volatile memory driver v1.3
Linux agpgart interface v0.103
crash memory driver: version 1.0
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
serial8250: ttyS2 at I/O 0x3e8 (irq = 5) is a 16550A
brd: module loaded
loop: module loaded
input: Macintosh mouse button emulation as /devices/virtual/input/input0
Fixed MDIO Bus: probed
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci_hcd 0000:00:1a.0: PCI->APIC IRQ transform: INT A -> IRQ 21
ehci_hcd 0000:00:1a.0: setting latency timer to 64
ehci_hcd 0000:00:1a.0: EHCI Host Controller
ehci_hcd 0000:00:1a.0: new USB bus registered, assigned bus number 1
ehci_hcd 0000:00:1a.0: debug port 2
ehci_hcd 0000:00:1a.0: cache line size of 64 is not supported
ehci_hcd 0000:00:1a.0: irq 21, io mem 0xfb3fc000
ehci_hcd 0000:00:1a.0: USB 2.0 started, EHCI 1.00
usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb1: Product: EHCI Host Controller
usb usb1: Manufacturer: Linux 2.6.32-71.29.1.el6.x86_64 ehci_hcd
usb usb1: SerialNumber: 0000:00:1a.0
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
ehci_hcd 0000:00:1d.0: PCI->APIC IRQ transform: INT A -> IRQ 23
ehci_hcd 0000:00:1d.0: setting latency timer to 64
ehci_hcd 0000:00:1d.0: EHCI Host Controller
ehci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 2
ehci_hcd 0000:00:1d.0: debug port 2
ehci_hcd 0000:00:1d.0: cache line size of 64 is not supported
ehci_hcd 0000:00:1d.0: irq 23, io mem 0xfb3fa000
ehci_hcd 0000:00:1d.0: USB 2.0 started, EHCI 1.00
usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb2: Product: EHCI Host Controller
usb usb2: Manufacturer: Linux 2.6.32-71.29.1.el6.x86_64 ehci_hcd
usb usb2: SerialNumber: 0000:00:1d.0
usb usb2: configuration #1 chosen from 1 choice
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
uhci_hcd: USB Universal Host Controller Interface driver
PNP: No PS/2 controller found. Probing ports directly.
serio: i8042 KBD port at 0x60,0x64 irq 1
serio: i8042 AUX port at 0x60,0x64 irq 12
mice: PS/2 mouse device common for all mice
rtc_cmos rtc_cmos: rtc core: registered rtc_cmos as rtc0
rtc0: alarms up to one day, 114 bytes nvram
cpuidle: using governor ladder
cpuidle: using governor menu
usbcore: registered new interface driver hiddev
usbcore: registered new interface driver usbhid
usbhid: v2.6:USB HID core driver
TCP cubic registered
Initializing XFRM netlink socket
NET: Registered protocol family 17
registered taskstats version 1
rtc_cmos rtc_cmos: setting system clock to 2011-09-26 18:59:34 UTC
(1317063574)
Initalizing network drop monitor service
Freeing unused kernel memory: 1220k freed
Write protecting the kernel read-only data: 7184k
dracut: dracut-004-33.2.el6_0
device-mapper: uevent: version 1.0.3
device-mapper: ioctl: 4.17.0-ioctl (2010-03-05) initialised: dm-
devel@redhat.com
udev: starting version 147
dracut: Starting plymouth daemon
mpt2sas version 05.100.00.02 loaded
scsi0 : Fusion MPT SAS Host
mpt2sas 0000:02:00.0: PCI->APIC IRQ transform: INT A -> IRQ 16
mpt2sas 0000:02:00.0: setting latency timer to 64
mpt2sas0: 64 BIT PCI BUS DMA ADDRESSING SUPPORTED, total mem (16328080 kB)
alloc irq_desc for 29 on node -1
alloc kstat_irqs on node -1
mpt2sas 0000:02:00.0: irq 29 for MSI/MSI-X
mpt2sas0: PCI-MSI-X enabled: IRQ 29
mpt2sas0: iomem(0x00000000fb43c000), mapped(0xffffc900025c8000), size(16384)
mpt2sas0: ioport(0x000000000000c000), size(256)
mpt2sas0: sending diag reset !!
usb 1-1: new high speed USB device using ehci_hcd and address 2
usb 1-1: New USB device found, idVendor=8087, idProduct=0020
usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 1-1: configuration #1 chosen from 1 choice
hub 1-1:1.0: USB hub found
hub 1-1:1.0: 6 ports detected
usb 2-1: new high speed USB device using ehci_hcd and address 2
usb 2-1: New USB device found, idVendor=8087, idProduct=0020
usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 2-1: configuration #1 chosen from 1 choice
hub 2-1:1.0: USB hub found
hub 2-1:1.0: 6 ports detected
usb 1-1.2: new full speed USB device using ehci_hcd and address 3
usb 1-1.2: New USB device found, idVendor=0557, idProduct=2221
usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 1-1.2: Product: Hermon USB hidmouse Device
usb 1-1.2: Manufacturer: Winbond Electronics Corp
usb 1-1.2: configuration #1 chosen from 1 choice
input: Winbond Electronics Corp Hermon USB hidmouse Device as
/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/input/input1
generic-usb 0003:0557:2221.0001: input,hidraw0: USB HID v1.00 Mouse [Winbond
Electronics Corp Hermon USB hidmouse Device] on usb-0000:00:1a.0-1.2/input0
input: Winbond Electronics Corp Hermon USB hidmouse Device as
/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.1/input/input2
generic-usb 0003:0557:2221.0002: input,hidraw1: USB HID v1.00 Keyboard
[Winbond Electronics Corp Hermon USB hidmouse Device] on
usb-0000:00:1a.0-1.2/input1
usb 1-1.3: new high speed USB device using ehci_hcd and address 4
usb 1-1.3: New USB device found, idVendor=05e3, idProduct=0719
usb 1-1.3: New USB device strings: Mfr=0, Product=1, SerialNumber=2
usb 1-1.3: Product: USB Storage
usb 1-1.3: SerialNumber: 000000000033
usb 1-1.3: configuration #1 chosen from 1 choice
usb 2-1.2: new low speed USB device using ehci_hcd and address 3
usb 2-1.2: New USB device found, idVendor=046d, idProduct=c31c
usb 2-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 2-1.2: Product: USB Keyboard
usb 2-1.2: Manufacturer: Logitech
usb 2-1.2: configuration #1 chosen from 1 choice
input: Logitech USB Keyboard as
/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0/input/input3
generic-usb 0003:046D:C31C.0003: input,hidraw2: USB HID v1.10 Keyboard
[Logitech USB Keyboard] on usb-0000:00:1d.0-1.2/input0
input: Logitech USB Keyboard as
/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.1/input/input4
generic-usb 0003:046D:C31C.0004: input,hidraw3: USB HID v1.10 Device [Logitech
USB Keyboard] on usb-0000:00:1d.0-1.2/input1
usb 2-1.3: new high speed USB device using ehci_hcd and address 4
mpt2sas0: diag reset: SUCCESS
usb 2-1.3: New USB device found, idVendor=0930, idProduct=653d
usb 2-1.3: New USB device strings: Mfr=0, Product=2, SerialNumber=3
usb 2-1.3: Product: USB Flash Memory
usb 2-1.3: SerialNumber: 0EF0F56022A2B8C4
usb 2-1.3: configuration #1 chosen from 1 choice
mpt2sas0: Allocated physical memory: size(839 kB)
mpt2sas0: Current Controller Queue Depth(339), Max Controller Queue
Depth(2799)
mpt2sas0: Scatter Gather Elements per IO(128)
mpt2sas0: LSISAS2008: FWVersion(04.00.00.00), ChipRevision(0x02),
BiosVersion(07.03.00.00)
mpt2sas0: Protocol=(Initiator,Target), Capabilities=(Raid,TLR,EEDP,Snapshot
Buffer,Diag Trace Buffer,Task Set Full,NCQ)
mpt2sas0: sending port enable !!
mpt2sas0: host_add: handle(0x0001), sas_addr(0x50030480004a14c0), phys(8)
mpt2sas0: port enable: SUCCESS
scsi 0:0:0:0: Direct-Access SEAGATE ST3300657SS 0006 PQ: 0 ANSI: 5
scsi 0:0:0:0: SSP: handle(0x0009), sas_addr(0x5000c50023bdb4b9),
device_name(0x00c50050b8b4bd23)
scsi 0:0:0:0: SSP: enclosure_logical_id(0x50030480004a14c0), slot(0)
scsi 0:0:0:0: qdepth(254), tagged(1), simple(1), ordered(0), scsi_level(6),
cmd_que(1)
ata_piix 0000:00:1f.2: version 2.13
ata_piix 0000:00:1f.2: PCI->APIC IRQ transform: INT B -> IRQ 19
ata_piix 0000:00:1f.2: MAP [ P0 P2 P1 P3 ]
ata_piix 0000:00:1f.2: setting latency timer to 64
scsi1 : ata_piix
scsi2 : ata_piix
ata1: SATA max UDMA/133 cmd 0xbc00 ctl 0xb880 bmdma 0xb400 irq 19
ata2: SATA max UDMA/133 cmd 0xb800 ctl 0xb480 bmdma 0xb408 irq 19
ata_piix 0000:00:1f.5: PCI->APIC IRQ transform: INT B -> IRQ 19
ata_piix 0000:00:1f.5: MAP [ P0 -- P1 -- ]
ata_piix 0000:00:1f.5: setting latency timer to 64
scsi3 : ata_piix
scsi4 : ata_piix
ata3: SATA max UDMA/133 cmd 0xac00 ctl 0xa880 bmdma 0xa400 irq 19
ata4: SATA max UDMA/133 cmd 0xa800 ctl 0xa480 bmdma 0xa408 irq 19
ata4: SATA link down (SStatus 0 SControl 300)
ata3: SATA link down (SStatus 0 SControl 300)
ata2.00: SATA link down (SStatus 0 SControl 300)
ata2.01: SATA link down (SStatus 0 SControl 300)
ata1.00: SATA link down (SStatus 0 SControl 300)
ata1.01: SATA link down (SStatus 0 SControl 300)
Initializing USB Mass Storage driver...
scsi5 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 4
usb-storage: waiting for device to settle before scanning
scsi6 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 4
usb-storage: waiting for device to settle before scanning
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
sd 0:0:0:0: [sda] 585937500 512-byte logical blocks: (300 GB/279 GiB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: bb 00 10 08
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, supports DPO and
FUA
sda: sda1 sda2 sda3 sda4 < sda5 sda6 sda7 >
sd 0:0:0:0: [sda] Attached SCSI disk
EXT3-fs: INFO: recovery required on readonly filesystem.
EXT3-fs: write access will be enabled during recovery.
kjournald starting. Commit interval 5 seconds
EXT3-fs: recovery complete.
EXT3-fs: mounted filesystem with ordered data mode.
dracut: Mounted root filesystem /dev/sda3
dracut: Loading SELinux policy
type=1404 audit(1317063586.147:2): enforcing=1 old_enforcing=0 auid=4294967295
ses=4294967295
SELinux: 2048 avtab hash slots, 200977 rules.
SELinux: 2048 avtab hash slots, 200977 rules.
SELinux: 9 users, 13 roles, 3327 types, 173 bools, 1 sens, 1024 cats
SELinux: 77 classes, 200977 rules
SELinux: Completing initialization.
SELinux: Setting up existing superblocks.
SELinux: initialized (dev sda3, type ext3), uses xattr
SELinux: initialized (dev tmpfs, type tmpfs), uses transition SIDs
SELinux: initialized (dev usbfs, type usbfs), uses genfs_contexts
SELinux: initialized (dev selinuxfs, type selinuxfs), uses genfs_contexts
SELinux: initialized (dev mqueue, type mqueue), uses transition SIDs
SELinux: initialized (dev hugetlbfs, type hugetlbfs), uses transition SIDs
SELinux: initialized (dev devpts, type devpts), uses transition SIDs
SELinux: initialized (dev inotifyfs, type inotifyfs), uses genfs_contexts
SELinux: initialized (dev anon_inodefs, type anon_inodefs), uses
genfs_contexts
SELinux: initialized (dev pipefs, type pipefs), uses task SIDs
SELinux: initialized (dev debugfs, type debugfs), uses genfs_contexts
SELinux: initialized (dev sockfs, type sockfs), uses task SIDs
SELinux: initialized (dev devtmpfs, type devtmpfs), uses transition SIDs
SELinux: initialized (dev tmpfs, type tmpfs), uses transition SIDs
SELinux: initialized (dev proc, type proc), uses genfs_contexts
SELinux: initialized (dev bdev, type bdev), uses genfs_contexts
SELinux: initialized (dev rootfs, type rootfs), uses genfs_contexts
SELinux: initialized (dev sysfs, type sysfs), uses genfs_contexts
type=1403 audit(1317063586.463:3): policy loaded auid=4294967295
ses=4294967295
dracut:
dracut: Switching root
udev: starting version 147
sd 0:0:0:0: Attached scsi generic sg0 type 0
e1000e: Intel(R) PRO/1000 Network Driver - 1.5.1-NAPI
e1000e: Copyright(c) 1999 - 2011 Intel Corporation.
e1000e 0000:04:00.0: Disabling ASPM L0s
e1000e 0000:04:00.0: PCI->APIC IRQ transform: INT A -> IRQ 16
e1000e 0000:04:00.0: setting latency timer to 64
alloc irq_desc for 30 on node -1
alloc kstat_irqs on node -1
e1000e 0000:04:00.0: irq 30 for MSI/MSI-X
alloc irq_desc for 31 on node -1
alloc kstat_irqs on node -1
e1000e 0000:04:00.0: irq 31 for MSI/MSI-X
e1000e 0000:04:00.0: eth0: (PCI Express:2.5GT/s:Width x1) 00:25:90:00:64:b0
e1000e 0000:04:00.0: eth0: Intel(R) PRO/1000 Network Connection
e1000e 0000:04:00.0: eth0: MAC: 4, PHY: 8, PBA No: 0101FF-0FF
e1000e 0000:05:00.0: Disabling ASPM L0s
e1000e 0000:05:00.0: PCI->APIC IRQ transform: INT A -> IRQ 17
e1000e 0000:05:00.0: setting latency timer to 64
alloc irq_desc for 32 on node -1
alloc kstat_irqs on node -1
e1000e 0000:05:00.0: irq 32 for MSI/MSI-X
alloc irq_desc for 33 on node -1
alloc kstat_irqs on node -1
e1000e 0000:05:00.0: irq 33 for MSI/MSI-X
e1000e 0000:05:00.0: eth1: (PCI Express:2.5GT/s:Width x1) 00:25:90:00:64:b1
e1000e 0000:05:00.0: eth1: Intel(R) PRO/1000 Network Connection
e1000e 0000:05:00.0: eth1: MAC: 4, PHY: 8, PBA No: 0101FF-0FF
iTCO_vendor_support: vendor-support=0
iTCO_wdt: Intel TCO WatchDog Timer Driver v1.05
iTCO_wdt: Found a 3420 TCO device (Version=2, TCOBASE=0x0860)
iTCO_wdt: initialized. heartbeat=30 sec (nowayout=0)
i801_smbus 0000:00:1f.3: PCI->APIC IRQ transform: INT C -> IRQ 18
usb-storage: device scan complete
usb-storage: device scan complete
scsi 6:0:0:0: Direct-Access USB Flash Memory 5.00 PQ: 0 ANSI: 0
CCS
scsi 5:0:0:0: CD-ROM HL-DT-ST DVDRAM GT20L DQ02 PQ: 0 ANSI: 0
sd 6:0:0:0: Attached scsi generic sg1 type 0
scsi 5:0:0:0: Attached scsi generic sg2 type 5
EXT3 FS on sda3, internal journal
kjournald starting. Commit interval 5 seconds
EXT3 FS on sda1, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
SELinux: initialized (dev sda1, type ext3), uses xattr
kjournald starting. Commit interval 5 seconds
EXT3 FS on sda7, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
SELinux: initialized (dev sda7, type ext3), uses xattr
kjournald starting. Commit interval 5 seconds
EXT3 FS on sda2, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
SELinux: initialized (dev sda2, type ext3), uses xattr
kjournald starting. Commit interval 5 seconds
EXT3 FS on sda5, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
SELinux: initialized (dev sda5, type ext3), uses xattr
Adding 10241396k swap on /dev/sda6. Priority:-1 extents:1 across:10241396k
SELinux: initialized (dev binfmt_misc, type binfmt_misc), uses genfs_contexts
NET: Registered protocol family 10
lo: Disabled Privacy Extensions
sd 6:0:0:0: [sdb] 2013184 512-byte logical blocks: (1.03 GB/983 MiB)
sd 6:0:0:0: [sdb] Write Protect is off
sd 6:0:0:0: [sdb] Mode Sense: 23 00 00 00
sd 6:0:0:0: [sdb] Assuming drive cache: write through
sd 6:0:0:0: [sdb] Assuming drive cache: write through
sdb: sdb1
sd 6:0:0:0: [sdb] Assuming drive cache: write through
sd 6:0:0:0: [sdb] Attached SCSI removable disk
ip6_tables: (C) 2000-2006 Netfilter Core Team
sr0: scsi3-mmc drive: 24x/24x writer dvd-ram cd/rw xa/form2 cdda tray
Uniform CD-ROM driver Revision: 3.20
sr 5:0:0:0: Attached scsi CD-ROM sr0
nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
ip_tables: (C) 2000-2006 Netfilter Core Team
ADDRCONF(NETDEV_UP): eth1: link is not ready
e1000e: eth1 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx
e1000e 0000:05:00.0: eth1: 10/100 speed: disabling TSO
ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
eth1: no IPv6 routers present
SELinux: initialized (dev sdb1, type vfat), uses genfs_contexts


Output of lspci
00:00.0 Host bridge: Intel Corporation Core Processor DMI (rev 11)
00:03.0 PCI bridge: Intel Corporation Core Processor PCI Express Root Port 1
(rev 11)
00:05.0 PCI bridge: Intel Corporation Core Processor PCI Express Root Port 3
(rev 11)
00:08.0 System peripheral: Intel Corporation Core Processor System Management
Registers (rev 11)
00:08.1 System peripheral: Intel Corporation Core Processor Semaphore and
Scratchpad Registers (rev 11)
00:08.2 System peripheral: Intel Corporation Core Processor System Control and
Status Registers (rev 11)
00:08.3 System peripheral: Intel Corporation Core Processor Miscellaneous
Registers (rev 11)
00:10.0 System peripheral: Intel Corporation Core Processor QPI Link (rev 11)
00:10.1 System peripheral: Intel Corporation Core Processor QPI Routing and
Protocol Registers (rev 11)
00:1a.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2
Enhanced Host Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express
Root Port 1 (rev 05)
00:1c.4 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express
Root Port 5 (rev 05)
00:1c.5 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express
Root Port 6 (rev 05)
00:1d.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2
Enhanced Host Controller (rev 05)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev a5)
00:1f.0 ISA bridge: Intel Corporation 3400 Series Chipset LPC Interface
Controller (rev 05)
00:1f.2 IDE interface: Intel Corporation 5 Series/3400 Series Chipset 4 port
SATA IDE Controller (rev 05)
00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller
(rev 05)
00:1f.5 IDE interface: Intel Corporation 5 Series/3400 Series Chipset 2 port
SATA IDE Controller (rev 05)
02:00.0 Serial Attached SCSI controller: LSI Logic / Symbios Logic SAS2008
PCI-Express Fusion-MPT SAS-2 [Falcon] (rev 02)
04:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network
Connection
05:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network
Connection
06:03.0 VGA compatible controller: Matrox Graphics, Inc. MGA G200eW WPCM450
(rev 0a)

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Old 09-26-2011, 07:36 PM
 
Default Hard I/O lockup with EL6

Benjamin Smith wrote:
> I'm trying to figure out why 2 machines have a "hard I/O lock" on the HDD
> when
> running EL6.
>
> I have 4 identical machines, all were stable with EL5. 2 work great with
> EL6, 2 do not. I've checked momtherboard BIOS versions and settings, SAS
> controller BIOS versions and settings, they are the same between the
> working and non-working systems.
>
> When booting a non-working system, it boots straight up to the boot prompt
> (runlevel 3) without issue, and everything works fine. When the machine
> sits idle for a period of time (ranging from 15 minutes or so and up) the
> HDD becomes unreadable/unwritable and the system is useless for any
> purpose and must be hard restarted with a full power cycle - it won't
> even shut down.
<snip>
Not quite grasping at straws here, but a) have you checked
/var/log/message for memory or drive errors? Maybe memtest86? b) diffed
dmesg between working and dying machines?

One more thing: should we assume you were trying to do things, when they
die, from the console? I ask because I note that you're using the e1000e
driver, which was just the subject of a thread here.

mark

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