On Mon, Aug 03, 2009 at 09:04:58AM +0200, Ingo Molnar wrote: > [ 0.010000] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar > [ 0.010000] ... MAX_LOCKDEP_SUBCLASSES: 8 > [ 0.010000] ... MAX_LOCK_DEPTH: 48 > [ 0.010000] ... MAX_LOCKDEP_KEYS: 8191 > [ 0.010000] ... CLASSHASH_SIZE: 4096 > [ 0.010000] ... MAX_LOCKDEP_ENTRIES: 16384 > [ 0.010000] ... MAX_LOCKDEP_CHAINS: 32768 > [ 0.010000] ... CHAINHASH_SIZE: 16384 > [ 0.010000] memory used by lock dependency info: 5823 kB > [ 0.010000] per task-struct memory footprint: 1920 bytes > [ 0.010000] ------------------------ > [ 0.010000] | Locking API testsuite: > [ 0.010000] ---------------------------------------------------------------------------- > [ 0.010000] | spin |wlock |rlock |mutex | wsem | rsem | > [ 0.010000] -------------------------------------------------------------------------- > [ 0.010000] A-A deadlock:failed|failed| ok |failed|failed|failed| > [ 0.010000] A-B-B-A deadlock:failed|failed| ok |failed|failed|failed| > [ 0.010000] A-B-B-C-C-A deadlock:failed|failed| ok |failed|failed|failed| > [ 0.010000] A-B-C-A-B-C deadlock:failed|failed| ok |failed|failed|failed| > [ 0.010000] A-B-B-C-C-D-D-A deadlock:failed|failed| ok |failed|failed|failed| > [ 0.010000] A-B-C-D-B-D-D-A deadlock:failed|failed| ok |failed|failed|failed| > [ 0.010000] A-B-C-D-B-C-D-A deadlock:failed|failed| ok |failed|failed|failed| > [ 0.010000] double unlock: ok | ok | ok | ok | ok | ok | > [ 0.010000] initialize held: ok | ok | ok | ok | ok | ok | > [ 0.010000] bad unlock order: ok | ok | ok | ok | ok | ok | > [ 0.010000] -------------------------------------------------------------------------- > [ 0.010000] recursive read-lock: | ok | |failed| > [ 0.010000] recursive read-lock #2: | ok | |failed| > [ 0.010000] mixed read-write-lock: |failed| |failed| > [ 0.010000] mixed write-read-lock: |failed| |failed| > [ 0.010000] -------------------------------------------------------------------------- > [ 0.010000] hard-irqs-on + irq-safe-A/12:failed|failed| ok | > [ 0.010000] soft-irqs-on + irq-safe-A/12:failed|failed| ok | > [ 0.010000] hard-irqs-on + irq-safe-A/21:failed|failed| ok | > [ 0.010000] soft-irqs-on + irq-safe-A/21:failed|failed| ok | > [ 0.010000] sirq-safe-A => hirqs-on/12:failed|failed| ok | > [ 0.010000] sirq-safe-A => hirqs-on/21:failed|failed| ok | > [ 0.010000] hard-safe-A + irqs-on/12:failed|failed| ok | > [ 0.010000] soft-safe-A + irqs-on/12:failed|failed| ok | > [ 0.010000] hard-safe-A + irqs-on/21:failed|failed| ok | > [ 0.010000] soft-safe-A + irqs-on/21:failed|failed| ok | > [ 0.010000] hard-safe-A + unsafe-B #1/123:failed|failed| ok | > [ 0.010000] soft-safe-A + unsafe-B #1/123:failed|failed| ok | > [ 0.010000] hard-safe-A + unsafe-B #1/132:failed|failed| ok | > [ 0.010000] soft-safe-A + unsafe-B #1/132:failed|failed| ok | > [ 0.010000] hard-safe-A + unsafe-B #1/213:failed|failed| ok | > [ 0.010000] soft-safe-A + unsafe-B #1/213:failed|failed| ok | > [ 0.010000] hard-safe-A + unsafe-B #1/231:failed|failed| ok | > [ 0.010000] soft-safe-A + unsafe-B #1/231:failed|failed| ok | > [ 0.010000] hard-safe-A + unsafe-B #1/312:failed|failed| ok | > [ 0.010000] soft-safe-A + unsafe-B #1/312:failed|failed| ok | > [ 0.010000] hard-safe-A + unsafe-B #1/321:failed|failed| ok | > [ 0.010000] soft-safe-A + unsafe-B #1/321:failed|failed| ok | > [ 0.010000] hard-safe-A + unsafe-B #2/123:failed|failed| ok | > [ 0.010000] soft-safe-A + unsafe-B #2/123:failed|failed| ok | > [ 0.010000] hard-safe-A + unsafe-B #2/132:failed|failed| ok | > [ 0.010000] soft-safe-A + unsafe-B #2/132:failed|failed| ok | > [ 0.010000] hard-safe-A + unsafe-B #2/213:failed|failed| ok | > [ 0.010000] soft-safe-A + unsafe-B #2/213:failed|failed| ok | > [ 0.010000] hard-safe-A + unsafe-B #2/231:failed|failed| ok | > [ 0.010000] soft-safe-A + unsafe-B #2/231:failed|failed| ok | > [ 0.010000] hard-safe-A + unsafe-B #2/312:failed|failed| ok | > [ 0.010000] soft-safe-A + unsafe-B #2/312:failed|failed| ok | > [ 0.010000] hard-safe-A + unsafe-B #2/321:failed|failed| ok | > [ 0.010000] soft-safe-A + unsafe-B #2/321:failed|failed| ok | > [ 0.010000] hard-irq lock-inversion/123:failed|failed| ok | > [ 0.010000] soft-irq lock-inversion/123:failed|failed| ok | > [ 0.010000] hard-irq lock-inversion/132:failed|failed| ok | > [ 0.010000] soft-irq lock-inversion/132:failed|failed| ok | > [ 0.010000] hard-irq lock-inversion/213:failed|failed| ok | > [ 0.010000] soft-irq lock-inversion/213:failed|failed| ok | > [ 0.010000] hard-irq lock-inversion/231:failed|failed| ok | > [ 0.010000] soft-irq lock-inversion/231:failed|failed| ok | > [ 0.010000] hard-irq lock-inversion/312:failed|failed| ok | > [ 0.010000] soft-irq lock-inversion/312:failed|failed| ok | > [ 0.010000] hard-irq lock-inversion/321:failed|failed| ok | > [ 0.010000] soft-irq lock-inversion/321:failed|failed| ok | > [ 0.010000] hard-irq read-recursion/123: ok | > [ 0.010000] soft-irq read-recursion/123: ok | > [ 0.010000] hard-irq read-recursion/132: ok | > [ 0.010000] soft-irq read-recursion/132: ok | > [ 0.010000] hard-irq read-recursion/213: ok | > [ 0.010000] soft-irq read-recursion/213: ok | > [ 0.010000] hard-irq read-recursion/231: ok | > [ 0.010000] soft-irq read-recursion/231: ok | > [ 0.010000] hard-irq read-recursion/312: ok | > [ 0.010000] soft-irq read-recursion/312: ok | > [ 0.010000] hard-irq read-recursion/321: ok | > [ 0.010000] soft-irq read-recursion/321: ok | > [ 0.010000] -------------------------------------------------------- > [ 0.010000] 133 out of 218 testcases failed, as expected. | > [ 0.010000] ---------------------------------------------------- Hmm.. I tried to reproduce this on a similar 2 CPU machine running linux-2.6.31-rc5-tip. However, I couldn't reproduce this WARN_ON. That aside, in my case, all the 218 lockdep test cases passed, while this bootlog shows quite a few failures. So, wondering if I am testing the right kernel version. Appending the patch, bootup log and the config. /*************** Patch ******************************/ rcu: Check if the cpu has been initialized before handling callbacks From: Gautham R Shenoy Signed-off-by: Gautham R Shenoy --- kernel/rcutree.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/kernel/rcutree.c b/kernel/rcutree.c index 0e40e61..1809cc8 100644 --- a/kernel/rcutree.c +++ b/kernel/rcutree.c @@ -1137,6 +1137,8 @@ __rcu_process_callbacks(struct rcu_state *rsp, struct rcu_data *rdp) { unsigned long flags; + WARN_ON_ONCE(rdp->beenonline == 0); + /* * If an RCU GP has gone long enough, go check for dyntick * idle CPUs and, if needed, send resched IPIs. @@ -1351,6 +1353,8 @@ rcu_init_percpu_data(int cpu, struct rcu_state *rsp) struct rcu_data *rdp = rsp->rda[cpu]; struct rcu_node *rnp = rcu_get_root(rsp); + printk(KERN_INFO "Initializing RCU for cpu %d\n", cpu); + /* Set up local state, ensuring consistent view of global state. */ spin_lock_irqsave(&rnp->lock, flags); lastcomp = rsp->completed; /*************** Boot Log ******************************/ root (hd0,0) Filesystem type is ext2fs, partition type 0x83 kernel /boot/vmlinuz-autobench console=tty0 console=ttyS0,9600 autobench_args: root=/dev/sda2 ABAT:1249362544 [Linux-bzImage, setup=0x3000, size=0x334830] initrd /boot/initrd-autobench.img [Linux-initrd @ 0x37de8000, 0x2077cb bytes] boot Linux version 2.6.31-rc5-autokern1-tip (root@elm3b165) (gcc version 4.0.3 (Ubuntu 4.0.3-1ubuntu5)) #1 SMP Tue Aug 4 05:08:45 UTC 2009 Command line: console=tty0 console=ttyS0,9600 autobench_args: root=/dev/sda2 ABAT:1249362544 KERNEL supported cpus: Intel GenuineIntel AMD AuthenticAMD Centaur CentaurHauls BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 000000000009ac00 (usable) BIOS-e820: 000000000009ac00 - 00000000000a0000 (reserved) BIOS-e820: 00000000000d4000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 00000000dff70000 (usable) BIOS-e820: 00000000dff70000 - 00000000dff7b000 (ACPI data) BIOS-e820: 00000000dff7b000 - 00000000dff80000 (ACPI NVS) BIOS-e820: 00000000dff80000 - 00000000e0000000 (reserved) BIOS-e820: 00000000fec00000 - 00000000fec00400 (reserved) BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved) BIOS-e820: 00000000fff80000 - 0000000100000000 (reserved) BIOS-e820: 0000000100000000 - 0000000400000000 (usable) DMI 2.3 present. last_pfn = 0x400000 max_arch_pfn = 0x400000000 last_pfn = 0xdff70 max_arch_pfn = 0x400000000 init_memory_mapping: 0000000000000000-00000000dff70000 init_memory_mapping: 0000000100000000-0000000400000000 RAMDISK: 37de8000 - 37fef7cb ACPI: RSDP 00000000000f7560 00024 (v02 PTLTD ) ACPI: XSDT 00000000dff78a5b 0004C (v01 PTLTD XSDT 06040000 LTP 00000000) ACPI: FACP 00000000dff7ac02 000F4 (v03 AMD HAMMER 06040000 PTEC 000F4240) ACPI: DSDT 00000000dff78aa7 020E7 (v01 AMD-K8 AMDACPI 06040000 MSFT 0100000E) ACPI: FACS 00000000dff7bfc0 00040 ACPI: SSDT 00000000dff7acf6 0020C (v01 PTLTD POWERNOW 06040000 LTP 00000001) ACPI: HPET 00000000dff7af02 00038 (v01 AMD HAMMER 06040000 PTEC 00000000) ACPI: APIC 00000000dff7af3a 00076 (v01 PTLTD APIC 06040000 LTP 00000000) ACPI: SPCR 00000000dff7afb0 00050 (v01 PTLTD $UCRTBL$ 06040000 PTL 00000001) Scanning NUMA topology in Northbridge 24 Number of nodes 2 Node 0 MemBase 0000000000000000 Limit 0000000200000000 Node 1 MemBase 0000000200000000 Limit 0000000400000000 Using node hash shift of 33 found SMP MP-table at [ffff8800000f75e0] f75e0 Bootmem setup node 0 0000000000000000-0000000200000000 NODE_DATA [0000000000001000 - 0000000000005fff] bootmap [0000000000018000 - 0000000000057fff] pages 40 (8 early reservations) ==> bootmem [0000000000 - 0200000000] #0 [0000000000 - 0000001000] BIOS data page ==> [0000000000 - 0000001000] #1 [0000006000 - 0000008000] TRAMPOLINE ==> [0000006000 - 0000008000] #2 [0001000000 - 00022fbea8] TEXT DATA BSS ==> [0001000000 - 00022fbea8] #3 [0037de8000 - 0037fef7cb] RAMDISK ==> [0037de8000 - 0037fef7cb] #4 [000009ac00 - 0000100000] BIOS reserved ==> [000009ac00 - 0000100000] #5 [00022fc000 - 00022fc108] BRK ==> [00022fc000 - 00022fc108] #6 [0000008000 - 000000c000] PGTABLE ==> [0000008000 - 000000c000] #7 [000000c000 - 0000018000] PGTABLE ==> [000000c000 - 0000018000] Bootmem setup node 1 0000000200000000-0000000400000000 NODE_DATA [0000000200000000 - 0000000200004fff] bootmap [0000000200005000 - 0000000200044fff] pages 40 (8 early reservations) ==> bootmem [0200000000 - 0400000000] #0 [0000000000 - 0000001000] BIOS data page #1 [0000006000 - 0000008000] TRAMPOLINE #2 [0001000000 - 00022fbea8] TEXT DATA BSS #3 [0037de8000 - 0037fef7cb] RAMDISK #4 [000009ac00 - 0000100000] BIOS reserved #5 [00022fc000 - 00022fc108] BRK #6 [0000008000 - 000000c000] PGTABLE #7 [000000c000 - 0000018000] PGTABLE found SMP MP-table at [ffff8800000f75e0] f75e0 Zone PFN ranges: DMA 0x00000000 -> 0x00001000 DMA32 0x00001000 -> 0x00100000 Normal 0x00100000 -> 0x00400000 Movable zone start PFN for each node early_node_map[4] active PFN ranges 0: 0x00000000 -> 0x0000009a 0: 0x00000100 -> 0x000dff70 0: 0x00100000 -> 0x00200000 1: 0x00200000 -> 0x00400000 Detected use of extended apic ids on hypertransport bus Detected use of extended apic ids on hypertransport bus ACPI: PM-Timer IO Port: 0x8008 ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled) ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1]) ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1]) ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0]) IOAPIC[0]: apic_id 2, version 17, address 0xfec00000, GSI 0-23 ACPI: IOAPIC (id[0x03] address[0xe8000000] gsi_base[24]) IOAPIC[1]: apic_id 3, version 17, address 0xe8000000, GSI 24-27 ACPI: IOAPIC (id[0x04] address[0xe8001000] gsi_base[28]) IOAPIC[2]: apic_id 4, version 17, address 0xe8001000, GSI 28-31 ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 high edge) Using ACPI (MADT) for SMP configuration information ACPI: HPET id: 0x102282a0 base: 0xfed00000 SMP: Allowing 2 CPUs, 0 hotplug CPUs Allocating PCI resources starting at e0000000 (gap: e0000000:1ec00000) NR_CPUS:32 nr_cpumask_bits:32 nr_cpu_ids:2 nr_node_ids:2 PERCPU: Remapped at ffffc90000000000 with large pages, static data 1914656 bytes Built 2 zonelists in Zone order, mobility grouping on. Total pages: 3956370 Policy zone: Normal Kernel command line: console=tty0 console=ttyS0,9600 autobench_args: root=/dev/sda2 ABAT:1249362544 PID hash table entries: 4096 (order: 12, 32768 bytes) Initializing CPU#0 Checking aperture... No AGP bridge found Node 0: aperture @ 0 size 32 MB Your BIOS doesn't leave a aperture memory hole Please enable the IOMMU option in the BIOS setup This costs you 64 MB of RAM Mapping aperture over 65536 KB of RAM @ 20000000 Memory: 15746208k/16777216k available (4270k kernel code, 525272k absent, 505736k reserved, 3005k data, 2396k init) Hierarchical RCU implementation. RCU-based detection of stalled CPUs is enabled. Initializing RCU for cpu 0 Initializing RCU for cpu 0 NR_IRQS:1280 Extended CMOS year: 2000 Fast TSC calibration using PIT Detected 2392.251 MHz processor. Console: colour VGA+ 80x25 console [tty0] enabled console [ttyS0] enabled Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar ... MAX_LOCKDEP_SUBCLASSES: 8 ... MAX_LOCK_DEPTH: 48 ... MAX_LOCKDEP_KEYS: 8191 ... CLASSHASH_SIZE: 4096 ... MAX_LOCKDEP_ENTRIES: 16384 ... MAX_LOCKDEP_CHAINS: 32768 ... CHAINHASH_SIZE: 16384 memory used by lock dependency info: 6367 kB per task-struct memory footprint: 2688 bytes ------------------------ | Locking API testsuite: ---------------------------------------------------------------------------- | spin |wlock |rlock |mutex | wsem | rsem | -------------------------------------------------------------------------- A-A deadlock: ok | ok | ok | ok | ok | ok | A-B-B-A deadlock: ok | ok | ok | ok | ok | ok | A-B-B-C-C-A deadlock: ok | ok | ok | ok | ok | ok | A-B-C-A-B-C deadlock: ok | ok | ok | ok | ok | ok | A-B-B-C-C-D-D-A deadlock: ok | ok | ok | ok | ok | ok | A-B-C-D-B-D-D-A deadlock: ok | ok | ok | ok | ok | ok | A-B-C-D-B-C-D-A deadlock: ok | ok | ok | ok | ok | ok | double unlock: ok | ok | ok | ok | ok | ok | initialize held: ok | ok | ok | ok | ok | ok | bad unlock order: ok | ok | ok | ok | ok | ok | -------------------------------------------------------------------------- recursive read-lock: | ok | | ok | recursive read-lock #2: | ok | | ok | mixed read-write-lock: | ok | | ok | mixed write-read-lock: | ok | | ok | -------------------------------------------------------------------------- hard-irqs-on + irq-safe-A/12: ok | ok | ok | soft-irqs-on + irq-safe-A/12: ok | ok | ok | hard-irqs-on + irq-safe-A/21: ok | ok | ok | soft-irqs-on + irq-safe-A/21: ok | ok | ok | sirq-safe-A => hirqs-on/12: ok | ok | ok | sirq-safe-A => hirqs-on/21: ok | ok | ok | hard-safe-A + irqs-on/12: ok | ok | ok | soft-safe-A + irqs-on/12: ok | ok | ok | hard-safe-A + irqs-on/21: ok | ok | ok | soft-safe-A + irqs-on/21: ok | ok | ok | hard-safe-A + unsafe-B #1/123: ok | ok | ok | soft-safe-A + unsafe-B #1/123: ok | ok | ok | hard-safe-A + unsafe-B #1/132: ok | ok | ok | soft-safe-A + unsafe-B #1/132: ok | ok | ok | hard-safe-A + unsafe-B #1/213: ok | ok | ok | soft-safe-A + unsafe-B #1/213: ok | ok | ok | hard-safe-A + unsafe-B #1/231: ok | ok | ok | soft-safe-A + unsafe-B #1/231: ok | ok | ok | hard-safe-A + unsafe-B #1/312: ok | ok | ok | soft-safe-A + unsafe-B #1/312: ok | ok | ok | hard-safe-A + unsafe-B #1/321: ok | ok | ok | soft-safe-A + unsafe-B #1/321: ok | ok | ok | hard-safe-A + unsafe-B #2/123: ok | ok | ok | soft-safe-A + unsafe-B #2/123: ok | ok | ok | hard-safe-A + unsafe-B #2/132: ok | ok | ok | soft-safe-A + unsafe-B #2/132: ok | ok | ok | hard-safe-A + unsafe-B #2/213: ok | ok | ok | soft-safe-A + unsafe-B #2/213: ok | ok | ok | hard-safe-A + unsafe-B #2/231: ok | ok | ok | soft-safe-A + unsafe-B #2/231: ok | ok | ok | hard-safe-A + unsafe-B #2/312: ok | ok | ok | soft-safe-A + unsafe-B #2/312: ok | ok | ok | hard-safe-A + unsafe-B #2/321: ok | ok | ok | soft-safe-A + unsafe-B #2/321: ok | ok | ok | hard-irq lock-inversion/123: ok | ok | ok | soft-irq lock-inversion/123: ok | ok | ok | hard-irq lock-inversion/132: ok | ok | ok | soft-irq lock-inversion/132: ok | ok | ok | hard-irq lock-inversion/213: ok | ok | ok | soft-irq lock-inversion/213: ok | ok | ok | hard-irq lock-inversion/231: ok | ok | ok | soft-irq lock-inversion/231: ok | ok | ok | hard-irq lock-inversion/312: ok | ok | ok | soft-irq lock-inversion/312: ok | ok | ok | hard-irq lock-inversion/321: ok | ok | ok | soft-irq lock-inversion/321: ok | ok | ok | hard-irq read-recursion/123: ok | soft-irq read-recursion/123: ok | hard-irq read-recursion/132: ok | soft-irq read-recursion/132: ok | hard-irq read-recursion/213: ok | soft-irq read-recursion/213: ok | hard-irq read-recursion/231: ok | soft-irq read-recursion/231: ok | hard-irq read-recursion/312: ok | soft-irq read-recursion/312: ok | hard-irq read-recursion/321: ok | soft-irq read-recursion/321: ok | ------------------------------------------------------- Good, all 218 testcases passed! | --------------------------------- HPET: 3 timers in total, 0 timers will be used for per-cpu timer Calibrating delay loop (skipped), value calculated using timer frequency.. 4784.50 BogoMIPS (lpj=9569004) 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 CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) CPU: L2 Cache: 1024K (64 bytes/line) CPU 0/0x0 -> Node 0 mce: CPU supports 5 MCE banks Performance Counters: AMD PMU driver. ... version: 0 ... bit width: 48 ... generic counters: 4 ... value mask: 0000ffffffffffff ... max period: 00007fffffffffff ... fixed-purpose counters: 0 ... counter mask: 000000000000000f ACPI: Core revision 20090521 Setting APIC routing to flat ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=0 pin2=0 CPU0: AMD Opteron(tm) Processor 250 stepping 0a Initializing RCU for cpu 1 Initializing RCU for cpu 1 lockdep: fixing up alternatives. Booting processor 1 APIC 0x1 ip 0x6000 Initializing CPU#1 Calibrating delay using timer specific routine.. 4785.02 BogoMIPS (lpj=9570044) CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) CPU: L2 Cache: 1024K (64 bytes/line) CPU 1/0x1 -> Node 1 mce: CPU supports 5 MCE banks CPU1: AMD Opteron(tm) Processor 250 stepping 0a Brought up 2 CPUs Total of 2 processors activated (9569.52 BogoMIPS). NET: Registered protocol family 16 TOM: 00000000e0000000 aka 3584M TOM2: 0000000400000000 aka 16384M ACPI: bus type pci registered PCI: Using configuration type 1 for base access bio: create slab at 0 ACPI: Interpreter enabled ACPI: (supports S0 S1 S5) ACPI: Using IOAPIC for interrupt routing ACPI: No dock devices found. ACPI: PCI Root Bridge [PCI0] (0000:00) pci 0000:02:01.0: PME# supported from D3hot D3cold pci 0000:02:01.0: PME# disabled pci 0000:02:01.1: PME# supported from D3hot D3cold pci 0000:02:01.1: PME# disabled pci 0000:03:03.0: PME# supported from D0 D3hot D3cold pci 0000:03:03.0: PME# disabled ACPI: PCI Interrupt Link [LNKA] (IRQs 3 5 10 11) *7 ACPI: PCI Interrupt Link [LNKB] (IRQs 3 5 *10 11) ACPI: PCI Interrupt Link [LNKC] (IRQs *3 5 10 11) ACPI: PCI Interrupt Link [LNKD] (IRQs 3 5 10 *11) SCSI subsystem initialized usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb PCI: Using ACPI for IRQ routing PCI-DMA: Disabling AGP. PCI-DMA: aperture base @ 20000000 size 65536 KB PCI-DMA: using GART IOMMU. PCI-DMA: Reserving 64MB of IOMMU area in the AGP aperture hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0 hpet0: 3 comparators, 32-bit 14.318180 MHz counter pnp: PnP ACPI init ACPI: bus type pnp registered pnp 00:00: mem resource (0x0-0x9ffff) overlaps 0000:02:02.0 BAR 6 (0x0-0xfffff), disabling pnp 00:00: mem resource (0xe0000-0xfffff) overlaps 0000:02:02.0 BAR 6 (0x0-0xfffff), disabling pnp 00:06: mem resource (0xc0000-0xc7fff) overlaps 0000:02:02.0 BAR 6 (0x0-0xfffff), disabling pnp: PnP ACPI: found 8 devices ACPI: ACPI bus type pnp unregistered system 00:00: iomem range 0x100000-0xdfffffff could not be reserved system 00:00: iomem range 0xfec00000-0xfec00fff could not be reserved system 00:00: iomem range 0xffc00000-0xfff7ffff has been reserved system 00:00: iomem range 0xfee00000-0xfee00fff has been reserved system 00:00: iomem range 0xfff80000-0xffffffff has been reserved system 00:06: ioport range 0x4d0-0x4d1 has been reserved system 00:06: ioport range 0x1100-0x117f has been reserved system 00:06: ioport range 0x1180-0x11ff has been reserved system 00:06: ioport range 0x300-0x307 has been reserved system 00:06: ioport range 0x421-0x42f has been reserved system 00:06: ioport range 0xca2-0xca3 has been reserved pci 0000:00:06.0: PCI bridge, secondary bus 0000:01 pci 0000:00:06.0: IO window: 0x2000-0x2fff pci 0000:00:06.0: MEM window: 0xe8100000-0xe81fffff pci 0000:00:06.0: PREFETCH window: 0xe0000000-0xe00fffff pci 0000:00:0a.0: PCI bridge, secondary bus 0000:02 pci 0000:00:0a.0: IO window: 0x3000-0x3fff pci 0000:00:0a.0: MEM window: 0xe8200000-0xe82fffff pci 0000:00:0a.0: PREFETCH window: 0xe0100000-0xe01fffff pci 0000:00:0b.0: PCI bridge, secondary bus 0000:03 pci 0000:00:0b.0: IO window: 0x4000-0x4fff pci 0000:00:0b.0: MEM window: 0xe8300000-0xe83fffff pci 0000:00:0b.0: PREFETCH window: 0x000000f0000000-0x000000f7ffffff 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: 10, 4718592 bytes) TCP: Hash tables configured (established 524288 bind 65536) TCP reno registered NET: Registered protocol family 1 Trying to unpack rootfs image as initramfs... Freeing initrd memory: 2077k freed HugeTLB registered 2 MB page size, pre-allocated 0 pages Installing knfsd (copyright (C) 1996 okir@monad.swb.de). msgmni has been set to 30758 io scheduler noop registered io scheduler deadline registered io scheduler cfq registered (default) boot interrupts on PCI device 0x1022:0x746b already disabled pci 0000:00:0a.0: MSI quirk detected; subordinate MSI disabled disabled boot interrupts on PCI device 0x1022:0x7450 pci 0000:00:0a.0: AMD8131 rev 12 detected; disabling PCI-X MMRBC pci 0000:00:0b.0: MSI quirk detected; subordinate MSI disabled disabled boot interrupts on PCI device 0x1022:0x7450 pci 0000:00:0b.0: AMD8131 rev 12 detected; disabling PCI-X MMRBC input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 ACPI: Power Button [PWRF] input: Power Button as /devices/LNXSYSTM:00/device:00/PNP0C0C:00/input/input1 ACPI: Power Button [PWRB] processor LNXCPU:00: registered as cooling_device0 processor LNXCPU:01: registered as cooling_device1 Real Time Clock Driver v1.12b AMD768 RNG detected Linux agpgart interface v0.103 Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A Platform driver 'serial8250' needs updating - please use dev_pm_ops 00:07: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A Platform driver 'floppy' needs updating - please use dev_pm_ops floppy0: no floppy controllers found brd: module loaded loop: module loaded Uniform Multi-Platform E-IDE driver amd74xx 0000:00:07.1: UDMA133 controller amd74xx 0000:00:07.1: IDE controller (0x1022:0x7469 rev 0x03) amd74xx 0000:00:07.1: not 100% native mode: will probe irqs later ide0: BM-DMA at 0x1020-0x1027 ide1: BM-DMA at 0x1028-0x102f hdc: LG CD-ROM CRN-8245B, ATAPI CD/DVD-ROM drive hdc: UDMA/33 mode selected ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 ide1 at 0x170-0x177,0x376 on irq 15 ide_generic: please use "probe_mask=0x3f" module parameter for probing all legacy ISA IDE ports ide-gd driver 1.18 ide-cd driver 5.00 ide-cd: hdc: ATAPI 24X CD-ROM drive, 128kB Cache Uniform CD-ROM driver Revision: 3.20 sata_sil 0000:01:06.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17 scsi0 : sata_sil scsi1 : sata_sil ata1: SATA max UDMA/100 mmio m512@0xe8102000 tf 0xe8102080 irq 17 ata2: SATA max UDMA/100 mmio m512@0xe8102000 tf 0xe81020c0 irq 17 ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310) ata1.00: ATA-6: ST380013AS, 3.25, max UDMA/133 ata1.00: 156312576 sectors, multi 16: LBA48 ata1.00: configured for UDMA/100 scsi 0:0:0:0: Direct-Access ATA ST380013AS 3.25 PQ: 0 ANSI: 5 sd 0:0:0:0: [sda] 156312576 512-byte logical blocks: (80.0 GB/74.5 GiB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sda: sda1 sda2 sda3 sda4 < sda5 sda6 sda7 > sd 0:0:0:0: [sda] Attached SCSI disk sd 0:0:0:0: Attached scsi generic sg0 type 0 ata2: SATA link down (SStatus 0 SControl 310) Intel(R) PRO/1000 Network Driver - version 7.3.21-k3-NAPI Copyright (c) 1999-2006 Intel Corporation. e1000 0000:03:03.0: PCI INT A -> GSI 28 (level, low) -> IRQ 28 e1000: 0000:03:03.0: e1000_probe: (PCI:66MHz:64-bit) 00:02:b3:9b:20:ef e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection e100: Intel(R) PRO/100 Network Driver, 3.5.24-k2-NAPI e100: Copyright(c) 1999-2006 Intel Corporation tg3.c:v3.99 (April 20, 2009) tg3 0000:02:01.0: PCI INT A -> GSI 24 (level, low) -> IRQ 24 tg3 0000:02:01.0: PME# disabled eth1: Tigon3 [partno(BCM95704A6) rev 2003] (PCIX:100MHz:64-bit) MAC address 00:0d:60:14:bf:64 eth1: attached PHY is 5704 (10/100/1000Base-T Ethernet) (WireSpeed[1]) eth1: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[1] TSOcap[0] eth1: dma_rwctrl[769f4000] dma_mask[64-bit] tg3 0000:02:01.1: PCI INT B -> GSI 25 (level, low) -> IRQ 25 tg3 0000:02:01.1: PME# disabled eth2: Tigon3 [partno(BCM95704A6) rev 2003] (PCIX:100MHz:64-bit) MAC address 00:0d:60:14:bf:65 eth2: attached PHY is 5704 (10/100/1000Base-T Ethernet) (WireSpeed[1]) eth2: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] TSOcap[1] eth2: dma_rwctrl[769f4000] dma_mask[64-bit] tun: Universal TUN/TAP device driver, 1.6 tun: (C) 1999-2004 Max Krasnyansky console [netcon0] enabled netconsole: network logging started Fusion MPT base driver 3.04.10 Copyright (c) 1999-2008 LSI Corporation Fusion MPT SPI Host driver 3.04.10 mptspi 0000:02:02.0: PCI INT A -> GSI 26 (level, low) -> IRQ 26 mptbase: ioc0: Initiating bringup ioc0: LSI53C1030 B2: Capabilities={Initiator} scsi2 : ioc0: LSI53C1030 B2, FwRev=01032316h, Ports=1, MaxQ=222, IRQ=26 Fusion MPT SAS Host driver 3.04.10 ieee1394: raw1394: /dev/raw1394 device initialized ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver ohci_hcd 0000:01:00.0: PCI INT D -> GSI 19 (level, low) -> IRQ 19 ohci_hcd 0000:01:00.0: OHCI Host Controller ohci_hcd 0000:01:00.0: new USB bus registered, assigned bus number 1 ohci_hcd 0000:01:00.0: irq 19, io mem 0xe8100000 usb usb1: configuration #1 chosen from 1 choice hub 1-0:1.0: USB hub found hub 1-0:1.0: 3 ports detected ohci_hcd 0000:01:00.1: PCI INT D -> GSI 19 (level, low) -> IRQ 19 ohci_hcd 0000:01:00.1: OHCI Host Controller ohci_hcd 0000:01:00.1: new USB bus registered, assigned bus number 2 ohci_hcd 0000:01:00.1: irq 19, io mem 0xe8101000 usb usb2: configuration #1 chosen from 1 choice hub 2-0:1.0: USB hub found hub 2-0:1.0: 3 ports detected uhci_hcd: USB Universal Host Controller Interface driver usbcore: registered new interface driver usblp Initializing USB Mass Storage driver... usbcore: registered new interface driver usb-storage USB Mass Storage support registered. PNP: No PS/2 controller found. Probing ports directly. Platform driver 'i8042' needs updating - please use dev_pm_ops usb 1-1: new full speed USB device using ohci_hcd and address 2 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 device-mapper: ioctl: 4.15.0-ioctl (2009-04-01) initialised: dm-devel@redhat.com cpuidle: using governor ladder usbcore: registered new interface driver usbhid usbhid: v2.6:USB HID core driver oprofile: using NMI interrupt. TCP cubic registered NET: Registered protocol family 10 IPv6 over IPv4 tunneling driver NET: Registered protocol family 17 RPC: Registered udp transport module. RPC: Registered tcp transport module. powernow-k8: Found 2 AMD Opteron(tm) Processor 250 processors (2 cpu cores) (version 2.20.00) powernow-k8: 0 : fid 0x10 (2400 MHz), vid 0x2 powernow-k8: 1 : fid 0xe (2200 MHz), vid 0x6 powernow-k8: 2 : fid 0xc (2000 MHz), vid 0xa powernow-k8: 3 : fid 0xa (1800 MHz), vid 0xc usb 1-1: configuration #1 chosen from 1 choice input: IBM PPC I/F as /devices/pci0000:00/0000:00:06.0/0000:01:00.0/usb1/1-1/1-1:1.0/input/input2 generic-usb 0003:04B3:4001.0001: input: USB HID v1.10 Keyboard [IBM PPC I/F] on usb-0000:01:00.0-1/input0 input: IBM PPC I/F as /devices/pci0000:00/0000:00:06.0/0000:01:00.0/usb1/1-1/1-1:1.1/input/input3 generic-usb 0003:04B3:4001.0002: input: USB HID v1.10 Mouse [IBM PPC I/F] on usb-0000:01:00.0-1/input1 powernow-k8: 4 : fid 0x2 (1000 MHz), vid 0xe powernow-k8: 0 : fid 0x10 (2400 MHz), vid 0x2 powernow-k8: 1 : fid 0xe (2200 MHz), vid 0x6 powernow-k8: 2 : fid 0xc (2000 MHz), vid 0xa powernow-k8: 3 : fid 0xa (1800 MHz), vid 0xc powernow-k8: 4 : fid 0x2 (1000 MHz), vid 0xe Freeing unused kernel memory: 2396k freed Begin: Loading essential drivers... ... Done. Begin: Running /scripts/init-premount ... ata_id[1419]: main: unable to open '/dev/.tmp-0-0' ata_id[1461]: main: unable to open '/dev/.tmp-0-0' Done. Begin: Mounting root file system... ... Begin: Running /scripts/local-top ... Done. Begin: Waiting for root file system... ... -- Thanks and Regards gautham