Re: [PATCH 0/3] make mapped executable pages the first classcitizen

From: Wu Fengguang
Date: Fri Jun 19 2009 - 01:24:54 EST

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On Thu, Jun 18, 2009 at 10:46:52PM +0800, David Howells wrote:
>
> Hmmm.... It's possible that this makes my test box implode horribly when
> running LTP.
>
> I'm going to bisect it to see if this is actually due to your patches.

Not likely my patches, they may cause regression only when there are
many VM_EXEC mapped pages.

You can try reverting this patch, it is a much bigger change for normal systems.

commit 56e49d218890f49b0057710a4b6fef31f5ffbfec
Author: Rik van Riel <riel@xxxxxxxxxx>
Date: Tue Jun 16 15:32:28 2009 -0700

vmscan: evict use-once pages first

When the file LRU lists are dominated by streaming IO pages, evict those
pages first, before considering evicting other pages.

This should be safe from deadlocks or performance problems
because only three things can happen to an inactive file page:

1) referenced twice and promoted to the active list
2) evicted by the pageout code
3) under IO, after which it will get evicted or promoted

The pages freed in this way can either be reused for streaming IO, or
allocated for something else. If the pages are used for streaming IO,
this pageout pattern continues. Otherwise, we will fall back to the
normal pageout pattern.

Thanks,
Fengguang

> Note that I don't have any swap space. This after a fresh reboot:
>
> [root@andromeda ~]# cat /proc/meminfo
> MemTotal: 1000624 kB
> MemFree: 797328 kB
> Buffers: 13272 kB
> Cached: 121744 kB
> SwapCached: 0 kB
> Active: 36240 kB
> Inactive: 115856 kB
> Active(anon): 17448 kB
> Inactive(anon): 0 kB
> Active(file): 18792 kB
> Inactive(file): 115856 kB
> Unevictable: 0 kB
> Mlocked: 0 kB
> SwapTotal: 0 kB
> SwapFree: 0 kB
> Dirty: 28 kB
> Writeback: 0 kB
> AnonPages: 17280 kB
> Mapped: 5376 kB
> Slab: 42984 kB
> SReclaimable: 6956 kB
> SUnreclaim: 36028 kB
> PageTables: 1304 kB
> NFS_Unstable: 0 kB
> Bounce: 0 kB
> WritebackTmp: 0 kB
> CommitLimit: 500312 kB
> Committed_AS: 52596 kB
> VmallocTotal: 34359738367 kB
> VmallocUsed: 190044 kB
> VmallocChunk: 34359546363 kB
> DirectMap4k: 13312 kB
> DirectMap2M: 1009664 kB
>
> David
> ---
> Initializing cgroup subsys cpuset
> Linux version 2.6.30-cachefs (dhowells@xxxxxxxxxxxxxxxxxxxxxx) (gcc version 4.4.0 20090506 (Red Hat 4.4.0-4) (GCC) ) #106 SMP Wed Jun 17 22:10:31 BST 2009
> Command line: initrd=andromeda-initrd console=tty0 console=ttyS0,115200 ro root=/dev/sda2 enforcing=1 debug BOOT_IMAGE=andromeda-vmlinuz
> KERNEL supported cpus:
> Intel GenuineIntel
> AMD AuthenticAMD
> Centaur CentaurHauls
> BIOS-provided physical RAM map:
> BIOS-e820: 0000000000000000 - 000000000009ec00 (usable)
> BIOS-e820: 000000000009ec00 - 00000000000a0000 (reserved)
> BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved)
> BIOS-e820: 0000000000100000 - 000000003e59a000 (usable)
> BIOS-e820: 000000003e59a000 - 000000003e5a6000 (reserved)
> BIOS-e820: 000000003e5a6000 - 000000003e644000 (usable)
> BIOS-e820: 000000003e644000 - 000000003e6a9000 (ACPI NVS)
> BIOS-e820: 000000003e6a9000 - 000000003e6ac000 (ACPI data)
> BIOS-e820: 000000003e6ac000 - 000000003e6f2000 (ACPI NVS)
> BIOS-e820: 000000003e6f2000 - 000000003e6ff000 (ACPI data)
> BIOS-e820: 000000003e6ff000 - 000000003e700000 (usable)
> BIOS-e820: 000000003e700000 - 000000003f000000 (reserved)
> BIOS-e820: 00000000fff00000 - 0000000100000000 (reserved)
> DMI 2.4 present.
> last_pfn = 0x3e700 max_arch_pfn = 0x400000000
> MTRR default type: uncachable
> MTRR fixed ranges enabled:
> 00000-9FFFF write-back
> A0000-FFFFF uncachable
> MTRR variable ranges enabled:
> 0 base 000000000 mask FC0000000 write-back
> 1 base 03F000000 mask FFF000000 uncachable
> 2 base 03E800000 mask FFF800000 uncachable
> 3 base 03E700000 mask FFFF00000 uncachable
> 4 disabled
> 5 disabled
> 6 disabled
> 7 disabled
> x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106
> initial memory mapped : 0 - 20000000
> init_memory_mapping: 0000000000000000-000000003e700000
> 0000000000 - 003e600000 page 2M
> 003e600000 - 003e700000 page 4k
> kernel direct mapping tables up to 3e700000 @ 8000-b000
> RAMDISK: 3e2ee000 - 3e57991c
> ACPI: RSDP 00000000000fe020 00014 (v00 INTEL )
> ACPI: RSDT 000000003e6fd038 0004C (v01 INTEL DG965RY 00000330 01000013)
> ACPI: FACP 000000003e6fc000 00074 (v01 INTEL DG965RY 00000330 MSFT 01000013)
> ACPI: DSDT 000000003e6f8000 03EDA (v01 INTEL DG965RY 00000330 MSFT 01000013)
> ACPI: FACS 000000003e6ac000 00040
> ACPI: APIC 000000003e6f7000 00078 (v01 INTEL DG965RY 00000330 MSFT 01000013)
> ACPI: WDDT 000000003e6f6000 00040 (v01 INTEL DG965RY 00000330 MSFT 01000013)
> ACPI: MCFG 000000003e6f5000 0003C (v01 INTEL DG965RY 00000330 MSFT 01000013)
> ACPI: ASF! 000000003e6f4000 000A6 (v32 INTEL DG965RY 00000330 MSFT 01000013)
> ACPI: SSDT 000000003e6f3000 001BC (v01 INTEL CpuPm 00000330 MSFT 01000013)
> ACPI: SSDT 000000003e6f2000 00175 (v01 INTEL Cpu0Ist 00000330 MSFT 01000013)
> ACPI: SSDT 000000003e6ab000 00175 (v01 INTEL Cpu1Ist 00000330 MSFT 01000013)
> ACPI: SSDT 000000003e6aa000 00175 (v01 INTEL Cpu2Ist 00000330 MSFT 01000013)
> ACPI: SSDT 000000003e6a9000 00175 (v01 INTEL Cpu3Ist 00000330 MSFT 01000013)
> ACPI: Local APIC address 0xfee00000
> (7 early reservations) ==> bootmem [0000000000 - 003e700000]
> #0 [0000000000 - 0000001000] BIOS data page ==> [0000000000 - 0000001000]
> #1 [0000006000 - 0000008000] TRAMPOLINE ==> [0000006000 - 0000008000]
> #2 [0001000000 - 0001535d90] TEXT DATA BSS ==> [0001000000 - 0001535d90]
> #3 [003e2ee000 - 003e57991c] RAMDISK ==> [003e2ee000 - 003e57991c]
> #4 [000009e800 - 0000100000] BIOS reserved ==> [000009e800 - 0000100000]
> #5 [0001536000 - 0001536199] BRK ==> [0001536000 - 0001536199]
> #6 [0000008000 - 0000009000] PGTABLE ==> [0000008000 - 0000009000]
> found SMP MP-table at [ffff8800000fe200] fe200
> [ffffea0000000000-ffffea0000dfffff] PMD -> [ffff880001a00000-ffff8800027fffff] on node 0
> Zone PFN ranges:
> DMA 0x00000000 -> 0x00001000
> DMA32 0x00001000 -> 0x00100000
> Normal 0x00100000 -> 0x00100000
> Movable zone start PFN for each node
> early_node_map[4] active PFN ranges
> 0: 0x00000000 -> 0x0000009e
> 0: 0x00000100 -> 0x0003e59a
> 0: 0x0003e5a6 -> 0x0003e644
> 0: 0x0003e6ff -> 0x0003e700
> On node 0 totalpages: 255447
> DMA zone: 56 pages used for memmap
> DMA zone: 101 pages reserved
> DMA zone: 3841 pages, LIFO batch:0
> DMA32 zone: 3441 pages used for memmap
> DMA32 zone: 248008 pages, LIFO batch:31
> ACPI: PM-Timer IO Port: 0x408
> ACPI: Local APIC address 0xfee00000
> ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
> ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled)
> ACPI: LAPIC (acpi_id[0x03] lapic_id[0x82] disabled)
> ACPI: LAPIC (acpi_id[0x04] lapic_id[0x83] disabled)
> ACPI: LAPIC_NMI (acpi_id[0x01] dfl dfl lint[0x1])
> ACPI: LAPIC_NMI (acpi_id[0x02] dfl dfl lint[0x1])
> ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
> IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-23
> ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
> ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
> ACPI: IRQ0 used by override.
> ACPI: IRQ2 used by override.
> ACPI: IRQ9 used by override.
> Using ACPI (MADT) for SMP configuration information
> 4 Processors exceeds NR_CPUS limit of 2
> SMP: Allowing 2 CPUs, 0 hotplug CPUs
> nr_irqs_gsi: 24
> PM: Registered nosave memory: 000000000009e000 - 000000000009f000
> PM: Registered nosave memory: 000000000009f000 - 00000000000a0000
> PM: Registered nosave memory: 00000000000a0000 - 00000000000e0000
> PM: Registered nosave memory: 00000000000e0000 - 0000000000100000
> PM: Registered nosave memory: 000000003e59a000 - 000000003e5a6000
> PM: Registered nosave memory: 000000003e644000 - 000000003e6a9000
> PM: Registered nosave memory: 000000003e6a9000 - 000000003e6ac000
> PM: Registered nosave memory: 000000003e6ac000 - 000000003e6f2000
> PM: Registered nosave memory: 000000003e6f2000 - 000000003e6ff000
> Allocating PCI resources starting at 3f000000 (gap: 3f000000:c0f00000)
> NR_CPUS:2 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:1
> PERCPU: Embedded 24 pages at ffff880001541000, static data 67296 bytes
> Built 1 zonelists in Zone order, mobility grouping on. Total pages: 251849
> Kernel command line: initrd=andromeda-initrd console=tty0 console=ttyS0,115200 ro root=/dev/sda2 enforcing=1 debug BOOT_IMAGE=andromeda-vmlinuz
> PID hash table entries: 4096 (order: 12, 32768 bytes)
> Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
> Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)
> Initializing CPU#0
> Checking aperture...
> No AGP bridge found
> Memory: 996952k/1022976k available (2953k kernel code, 1188k absent, 24132k reserved, 1678k data, 360k init)
> NR_IRQS:320
> Fast TSC calibration using PIT
> Detected 1864.978 MHz processor.
> Console: colour VGA+ 80x25
> console [tty0] enabled
> console [ttyS0] enabled
> Calibrating delay loop (skipped), value calculated using timer frequency.. 3729.95 BogoMIPS (lpj=7459912)
> Security Framework initialized
> SELinux: Initializing.
> SELinux: Starting in enforcing mode
> Mount-cache hash table entries: 256
> Initializing cgroup subsys debug
> Initializing cgroup subsys ns
> Initializing cgroup subsys devices
> CPU: L1 I cache: 32K, L1 D cache: 32K
> CPU: L2 cache: 2048K
> CPU: Physical Processor ID: 0
> CPU: Processor Core ID: 0
> mce: CPU supports 6 MCE banks
> CPU0: Thermal monitoring enabled (TM2)
> using mwait in idle threads.
> ACPI: Core revision 20090521
> Setting APIC routing to flat
> ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
> CPU0: Intel(R) Core(TM)2 CPU 6300 @ 1.86GHz stepping 06
> Booting processor 1 APIC 0x1 ip 0x6000
> Initializing CPU#1
> Calibrating delay using timer specific routine.. 3525.06 BogoMIPS (lpj=7050122)
> CPU: L1 I cache: 32K, L1 D cache: 32K
> CPU: L2 cache: 2048K
> CPU: Physical Processor ID: 0
> CPU: Processor Core ID: 1
> mce: CPU supports 6 MCE banks
> CPU1: Thermal monitoring enabled (TM2)
> x86 PAT enabled: cpu 1, old 0x7040600070406, new 0x7010600070106
> CPU1: Intel(R) Core(TM)2 CPU 6300 @ 1.86GHz stepping 06
> checking TSC synchronization [CPU#0 -> CPU#1]: passed.
> Brought up 2 CPUs
> Total of 2 processors activated (7255.01 BogoMIPS).
> NET: Registered protocol family 16
> ACPI: bus type pci registered
> PCI: MCFG configuration 0: base f0000000 segment 0 buses 0 - 127
> PCI: Not using MMCONFIG.
> PCI: Using configuration type 1 for base access
> bio: create slab <bio-0> at 0
> ACPI: EC: Look up EC in DSDT
> ACPI: Interpreter enabled
> ACPI: (supports S0 S3 S4 S5)
> ACPI: Using IOAPIC for interrupt routing
> PCI: MCFG configuration 0: base f0000000 segment 0 buses 0 - 127
> PCI: MCFG area at f0000000 reserved in ACPI motherboard resources
> PCI: Using MMCONFIG at f0000000 - f7ffffff
> ACPI: No dock devices found.
> ACPI: PCI Root Bridge [PCI0] (0000:00)
> pci 0000:00:02.0: reg 10 32bit mmio: [0x50200000-0x502fffff]
> pci 0000:00:02.0: reg 18 64bit mmio: [0x40000000-0x4fffffff]
> pci 0000:00:02.0: reg 20 io port: [0x2110-0x2117]
> pci 0000:00:03.0: reg 10 64bit mmio: [0x50326100-0x5032610f]
> pci 0000:00:03.0: PME# supported from D0 D3hot D3cold
> pci 0000:00:03.0: PME# disabled
> pci 0000:00:19.0: reg 10 32bit mmio: [0x50300000-0x5031ffff]
> pci 0000:00:19.0: reg 14 32bit mmio: [0x50324000-0x50324fff]
> pci 0000:00:19.0: reg 18 io port: [0x20e0-0x20ff]
> pci 0000:00:19.0: PME# supported from D0 D3hot D3cold
> pci 0000:00:19.0: PME# disabled
> pci 0000:00:1a.0: reg 20 io port: [0x20c0-0x20df]
> pci 0000:00:1a.1: reg 20 io port: [0x20a0-0x20bf]
> pci 0000:00:1a.7: reg 10 32bit mmio: [0x50325c00-0x50325fff]
> pci 0000:00:1a.7: PME# supported from D0 D3hot D3cold
> pci 0000:00:1a.7: PME# disabled
> pci 0000:00:1b.0: reg 10 64bit mmio: [0x50320000-0x50323fff]
> pci 0000:00:1b.0: PME# supported from D0 D3hot D3cold
> pci 0000:00:1b.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.1: PME# supported from D0 D3hot D3cold
> pci 0000:00:1c.1: PME# disabled
> pci 0000:00:1c.2: PME# supported from D0 D3hot D3cold
> pci 0000:00:1c.2: PME# disabled
> pci 0000:00:1c.3: PME# supported from D0 D3hot D3cold
> pci 0000:00:1c.3: PME# disabled
> pci 0000:00:1c.4: PME# supported from D0 D3hot D3cold
> pci 0000:00:1c.4: PME# disabled
> pci 0000:00:1d.0: reg 20 io port: [0x2080-0x209f]
> pci 0000:00:1d.1: reg 20 io port: [0x2060-0x207f]
> pci 0000:00:1d.2: reg 20 io port: [0x2040-0x205f]
> pci 0000:00:1d.7: reg 10 32bit mmio: [0x50325800-0x50325bff]
> pci 0000:00:1d.7: PME# supported from D0 D3hot D3cold
> pci 0000:00:1d.7: PME# disabled
> pci 0000:00:1f.0: quirk: region 0400-047f claimed by ICH6 ACPI/GPIO/TCO
> pci 0000:00:1f.0: quirk: region 0500-053f claimed by ICH6 GPIO
> pci 0000:00:1f.0: ICH7 LPC Generic IO decode 1 PIO at 0680 (mask 007f)
> pci 0000:00:1f.2: reg 10 io port: [0x2108-0x210f]
> pci 0000:00:1f.2: reg 14 io port: [0x211c-0x211f]
> pci 0000:00:1f.2: reg 18 io port: [0x2100-0x2107]
> pci 0000:00:1f.2: reg 1c io port: [0x2118-0x211b]
> pci 0000:00:1f.2: reg 20 io port: [0x2020-0x203f]
> pci 0000:00:1f.2: reg 24 32bit mmio: [0x50325000-0x503257ff]
> pci 0000:00:1f.2: PME# supported from D3hot
> pci 0000:00:1f.2: PME# disabled
> pci 0000:00:1f.3: reg 10 32bit mmio: [0x50326000-0x503260ff]
> pci 0000:00:1f.3: reg 20 io port: [0x2000-0x201f]
> pci 0000:00:1c.0: bridge 32bit mmio: [0x50400000-0x504fffff]
> pci 0000:02:00.0: reg 10 io port: [0x1018-0x101f]
> pci 0000:02:00.0: reg 14 io port: [0x1024-0x1027]
> pci 0000:02:00.0: reg 18 io port: [0x1010-0x1017]
> pci 0000:02:00.0: reg 1c io port: [0x1020-0x1023]
> pci 0000:02:00.0: reg 20 io port: [0x1000-0x100f]
> pci 0000:02:00.0: reg 24 32bit mmio: [0x50100000-0x501001ff]
> pci 0000:02:00.0: supports D1
> pci 0000:02:00.0: PME# supported from D0 D1 D3hot
> pci 0000:02:00.0: PME# disabled
> pci 0000:00:1c.1: bridge io port: [0x1000-0x1fff]
> pci 0000:00:1c.1: bridge 32bit mmio: [0x50100000-0x501fffff]
> pci 0000:00:1c.2: bridge 32bit mmio: [0x50500000-0x505fffff]
> pci 0000:00:1c.3: bridge 32bit mmio: [0x50600000-0x506fffff]
> pci 0000:00:1c.4: bridge 32bit mmio: [0x50700000-0x507fffff]
> pci 0000:06:03.0: reg 10 32bit mmio: [0x50004000-0x500047ff]
> pci 0000:06:03.0: reg 14 32bit mmio: [0x50000000-0x50003fff]
> pci 0000:06:03.0: supports D1 D2
> pci 0000:06:03.0: PME# supported from D0 D1 D2 D3hot
> pci 0000:06:03.0: PME# disabled
> pci 0000:00:1e.0: transparent bridge
> pci 0000:00:1e.0: bridge 32bit mmio: [0x50000000-0x500fffff]
> pci_bus 0000:00: on NUMA node 0
> ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
> ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.P32_._PRT]
> ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PEX0._PRT]
> ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PEX1._PRT]
> ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PEX2._PRT]
> ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PEX3._PRT]
> ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PEX4._PRT]
> ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 7 9 10 *11 12)
> ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 7 9 *10 11 12)
> ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 7 9 10 *11 12)
> ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 7 9 10 *11 12)
> ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 7 *9 10 11 12)
> ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 7 9 *10 11 12)
> ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 7 *9 10 11 12)
> ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 7 9 10 *11 12)
> SCSI subsystem initialized
> libata version 3.00 loaded.
> PCI: Using ACPI for IRQ routing
> NetLabel: Initializing
> NetLabel: domain hash size = 128
> NetLabel: protocols = UNLABELED CIPSOv4
> NetLabel: unlabeled traffic allowed by default
> pnp: PnP ACPI init
> ACPI: bus type pnp registered
> pnp: PnP ACPI: found 12 devices
> ACPI: ACPI bus type pnp unregistered
> system 00:01: iomem range 0xf0000000-0xf7ffffff has been reserved
> system 00:01: iomem range 0xfed13000-0xfed13fff has been reserved
> system 00:01: iomem range 0xfed14000-0xfed17fff has been reserved
> system 00:01: iomem range 0xfed18000-0xfed18fff has been reserved
> system 00:01: iomem range 0xfed19000-0xfed19fff has been reserved
> system 00:01: iomem range 0xfed1c000-0xfed1ffff has been reserved
> system 00:01: iomem range 0xfed20000-0xfed3ffff has been reserved
> system 00:01: iomem range 0xfed45000-0xfed99fff has been reserved
> system 00:01: iomem range 0xc0000-0xdffff has been reserved
> system 00:01: iomem range 0xe0000-0xfffff could not be reserved
> system 00:06: ioport range 0x500-0x53f has been reserved
> system 00:06: ioport range 0x400-0x47f has been reserved
> system 00:06: ioport range 0x680-0x6ff has been reserved
> pci 0000:00:1c.0: PCI bridge, secondary bus 0000:01
> pci 0000:00:1c.0: IO window: disabled
> pci 0000:00:1c.0: MEM window: 0x50400000-0x504fffff
> pci 0000:00:1c.0: PREFETCH window: disabled
> pci 0000:00:1c.1: PCI bridge, secondary bus 0000:02
> pci 0000:00:1c.1: IO window: 0x1000-0x1fff
> pci 0000:00:1c.1: MEM window: 0x50100000-0x501fffff
> pci 0000:00:1c.1: PREFETCH window: disabled
> pci 0000:00:1c.2: PCI bridge, secondary bus 0000:03
> pci 0000:00:1c.2: IO window: disabled
> pci 0000:00:1c.2: MEM window: 0x50500000-0x505fffff
> pci 0000:00:1c.2: PREFETCH window: disabled
> pci 0000:00:1c.3: PCI bridge, secondary bus 0000:04
> pci 0000:00:1c.3: IO window: disabled
> pci 0000:00:1c.3: MEM window: 0x50600000-0x506fffff
> pci 0000:00:1c.3: PREFETCH window: disabled
> pci 0000:00:1c.4: PCI bridge, secondary bus 0000:05
> pci 0000:00:1c.4: IO window: disabled
> pci 0000:00:1c.4: MEM window: 0x50700000-0x507fffff
> pci 0000:00:1c.4: PREFETCH window: disabled
> pci 0000:00:1e.0: PCI bridge, secondary bus 0000:06
> pci 0000:00:1e.0: IO window: disabled
> pci 0000:00:1e.0: MEM window: 0x50000000-0x500fffff
> pci 0000:00:1e.0: PREFETCH window: disabled
> pci 0000:00:1c.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
> pci 0000:00:1c.0: setting latency timer to 64
> pci 0000:00:1c.1: PCI INT B -> GSI 16 (level, low) -> IRQ 16
> pci 0000:00:1c.1: setting latency timer to 64
> pci 0000:00:1c.2: PCI INT C -> GSI 18 (level, low) -> IRQ 18
> pci 0000:00:1c.2: setting latency timer to 64
> pci 0000:00:1c.3: PCI INT D -> GSI 19 (level, low) -> IRQ 19
> pci 0000:00:1c.3: setting latency timer to 64
> pci 0000:00:1c.4: PCI INT A -> GSI 17 (level, low) -> IRQ 17
> pci 0000:00:1c.4: 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 0000:01: resource 1 mem: [0x50400000-0x504fffff]
> pci_bus 0000:02: resource 0 io: [0x1000-0x1fff]
> pci_bus 0000:02: resource 1 mem: [0x50100000-0x501fffff]
> pci_bus 0000:03: resource 1 mem: [0x50500000-0x505fffff]
> pci_bus 0000:04: resource 1 mem: [0x50600000-0x506fffff]
> pci_bus 0000:05: resource 1 mem: [0x50700000-0x507fffff]
> pci_bus 0000:06: resource 1 mem: [0x50000000-0x500fffff]
> 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: 32768 (order: 6, 262144 bytes)
> TCP established hash table entries: 131072 (order: 9, 2097152 bytes)
> TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
> TCP: Hash tables configured (established 131072 bind 65536)
> TCP reno registered
> NET: Registered protocol family 1
> Unpacking initramfs...
> Freeing initrd memory: 2606k freed
> audit: initializing netlink socket (disabled)
> type=2000 audit(1245320564.157:1): initialized
> VFS: Disk quotas dquot_6.5.2
> Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
> SGI XFS with ACLs, security attributes, large block/inode numbers, no debug enabled
> msgmni has been set to 1953
> SELinux: Registering netfilter hooks
> alg: No test for fcrypt (fcrypt-generic)
> alg: No test for stdrng (krng)
> Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
> io scheduler noop registered
> io scheduler anticipatory registered (default)
> io scheduler deadline registered
> io scheduler cfq registered
> pci 0000:00:02.0: Boot video device
> pcieport-driver 0000:00:1c.0: irq 24 for MSI/MSI-X
> pcieport-driver 0000:00:1c.0: setting latency timer to 64
> pcieport-driver 0000:00:1c.1: irq 25 for MSI/MSI-X
> pcieport-driver 0000:00:1c.1: setting latency timer to 64
> pcieport-driver 0000:00:1c.2: irq 26 for MSI/MSI-X
> pcieport-driver 0000:00:1c.2: setting latency timer to 64
> pcieport-driver 0000:00:1c.3: irq 27 for MSI/MSI-X
> pcieport-driver 0000:00:1c.3: setting latency timer to 64
> pcieport-driver 0000:00:1c.4: irq 28 for MSI/MSI-X
> pcieport-driver 0000:00:1c.4: setting latency timer to 64
> input: Power Button as /class/input/input0
> ACPI: Power Button [PWRF]
> input: Sleep Button as /class/input/input1
> ACPI: Sleep Button [SLPB]
> processor ACPI_CPU:00: registered as cooling_device0
> ACPI: Processor [CPU0] (supports 8 throttling states)
> processor ACPI_CPU:01: registered as cooling_device1
> ACPI: Processor [CPU1] (supports 8 throttling states)
> Linux agpgart interface v0.103
> agpgart-intel 0000:00:00.0: Intel 965G Chipset
> agpgart-intel 0000:00:00.0: detected 7676K stolen memory
> agpgart-intel 0000:00:00.0: AGP aperture is 256M @ 0x40000000
> intelfb: Framebuffer driver for Intel(R) 830M/845G/852GM/855GM/865G/915G/915GM/945G/945GM/945GME/965G/965GM chipsets
> intelfb: Version 0.9.6
> intelfb 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
> intelfb: 00:02.0: Intel(R) 965G, aperture size 256MB, stolen memory 7932kB
> intelfb: Initial video mode is 1024x768-32@70.
> Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
> serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
> Platform driver 'serial8250' needs updating - please use dev_pm_ops
> 00:0a: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
> loop: module loaded
> Driver 'sd' needs updating - please use bus_type methods
> ahci 0000:00:1f.2: version 3.0
> ahci 0000:00:1f.2: PCI INT A -> GSI 19 (level, low) -> IRQ 19
> ahci 0000:00:1f.2: irq 29 for MSI/MSI-X
> ahci 0000:00:1f.2: AHCI 0001.0100 32 slots 4 ports 3 Gbps 0x33 impl SATA mode
> ahci 0000:00:1f.2: flags: 64bit ncq sntf led clo pio slum part ems
> ahci 0000:00:1f.2: setting latency timer to 64
> scsi0 : ahci
> scsi1 : ahci
> scsi2 : ahci
> scsi3 : ahci
> scsi4 : ahci
> scsi5 : ahci
> ata1: SATA max UDMA/133 abar m2048@0x50325000 port 0x50325100 irq 29
> ata2: SATA max UDMA/133 abar m2048@0x50325000 port 0x50325180 irq 29
> ata3: DUMMY
> ata4: DUMMY
> ata5: SATA max UDMA/133 abar m2048@0x50325000 port 0x50325300 irq 29
> ata6: SATA max UDMA/133 abar m2048@0x50325000 port 0x50325380 irq 29
> e1000e: Intel(R) PRO/1000 Network Driver - 1.0.2-k2
> e1000e: Copyright (c) 1999-2008 Intel Corporation.
> e1000e 0000:00:19.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20
> e1000e 0000:00:19.0: setting latency timer to 64
> e1000e 0000:00:19.0: irq 30 for MSI/MSI-X
> 0000:00:19.0: eth0: (PCI Express:2.5GB/s:Width x1) 00:16:76:ce:3a:3c
> 0000:00:19.0: eth0: Intel(R) PRO/1000 Network Connection
> 0000:00:19.0: eth0: MAC: 6, PHY: 6, PBA No: ffffff-0ff
> PNP: PS/2 Controller [PNP0303:PS2K,PNP0f03:PS2M] at 0x60,0x64 irq 1,12
> Platform driver 'i8042' needs updating - please use dev_pm_ops
> 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 00:03: RTC can wake from S4
> rtc_cmos 00:03: rtc core: registered rtc_cmos as rtc0
> rtc0: alarms up to one month, 114 bytes nvram
> i2c /dev entries driver
> i801_smbus 0000:00:1f.3: PCI INT B -> GSI 21 (level, low) -> IRQ 21
> coretemp coretemp.0: Using relative temperature scale!
> coretemp coretemp.1: Using relative temperature scale!
> cpuidle: using governor ladder
> ip_tables: (C) 2000-2006 Netfilter Core Team
> TCP cubic registered
> input: AT Translated Set 2 keyboard as /class/input/input2
> NET: Registered protocol family 17
> ata2: SATA link down (SStatus 0 SControl 300)
> ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
> registered taskstats version 1
> ata6: SATA link down (SStatus 0 SControl 300)
> ata5: SATA link down (SStatus 0 SControl 300)
> rtc_cmos 00:03: setting system clock to 2009-06-18 10:22:46 UTC (1245320566)
> ata1.00: ATA-7: ST380211AS, 3.AAE, max UDMA/133
> ata1.00: 156301488 sectors, multi 0: LBA48 NCQ (depth 31/32)
> ata1.00: configured for UDMA/133
> scsi 0:0:0:0: Direct-Access ATA ST380211AS 3.AA PQ: 0 ANSI: 5
> sd 0:0:0:0: [sda] 156301488 512-byte hardware sectors: (80.0 GB/74.5 GiB)
> sd 0:0:0:0: [sda] Write Protect is off
> sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
> 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 sda8 >
> sd 0:0:0:0: [sda] Attached SCSI disk
> Freeing unused kernel memory: 360k freed
> Write protecting the kernel read-only data: 4324k
> Red Hat nash version 6.0.52 starting
> Mounting proc filesystem
> Mounting sysfs filesystem
> Creating /dev
> Creating initial device nodes
> Setting up hotplug.
> input: ImPS/2 Generic Wheel Mouse as /class/input/input3
> Creating block device nodes.
> mount: could not find filesystem '/proc/bus/usb'
> Waiting for driver initialization.
> Waiting for driver initialization.
> Creating root device.
> Mounting root filesystem.
> EXT3-fs: INFO: recovery required on readonly filesystem.
> EXT3-fs: write access will be enabled during recovery.
> kjournald starting. Commit interval 5 seconds
> Setting up otherEXT3-fs: recovery complete.
> filesystems.
> EXT3-fs: mounted filesystem with writeback data mode.
> Setting up new root fs
> no fstab.sys, mounting internal defaults
> SELinux: 8192 avtab hash slots, 177803 rules.
> SELinux: 8192 avtab hash slots, 177803 rules.
> SELinux: 6 users, 12 roles, 2431 types, 118 bools, 1 sens, 1024 cats
> SELinux: 73 classes, 177803 rules
> SELinux: class kernel_service not defined in policy
> SELinux: permission open in class sock_file not defined in policy
> SELinux: permission nlmsg_tty_audit in class netlink_audit_socket not defined in policy
> SELinux: the above unknown classes and permissions will be allowed
> SELinux: Completing initialization.
> SELinux: Setting up existing superblocks.
> SELinux: initialized (dev sda2, type ext3), uses xattr
> SELinux: initialized (dev tmpfs, type tmpfs), uses transition SIDs
> SELinux: initialized (dev selinuxfs, type selinuxfs), uses genfs_contexts
> SELinux: initialized (dev mqueue, type mqueue), uses transition SIDs
> SELinux: initialized (dev devpts, type devpts), uses transition SIDs
> SELinux: initialized (dev inotifyfs, type inotifyfs), uses genfs_contexts
> SELinux: initialized (dev tmpfs, type tmpfs), uses transition SIDs
> 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 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(1245320574.561:2): policy loaded auid=4294967295 ses=4294967295
> Switching to new root and running init.
> unmounting old /dev
> unmounting old /proc
> unmounting old /sys
> Welcome to Fedora
> Press 'I' to enter interactive startup.
> Starting udev: [ OK ]
> Setting hostname andromeda.procyon.org.uk: [ OK ]
> Checking filesystems
> Checking all file systems.
> [/sbin/fsck.ext3 (1) -- /] fsck.ext3 -a /dev/sda2
> /1: clean, 330515/2621440 files, 1528849/2620603 blocks
> [/sbin/fsck.ext3 (1) -- /boot] fsck.ext3 -a /dev/sda1
> /boot1: recovering journal
> /boot1: clean, 79/50200 files, 72187/200780 blocks
> [ OK ]
> Remounting root filesystem in read-write mode: [ OK ]
> Mounting local filesystems: [ OK ]
> Enabling local filesystem quotas: [ OK ]
> Enabling /etc/fstab swaps: [ OK ]
> Entering non-interactive startup
> Starting background readahead (early, fast mode): [ OK ]
> FATAL: Could not load /lib/modules/2.6.30-cachefs/modules.dep: No such file or directory
> Bringing up loopback interface: [ OK ]
> Bringing up interface eth0:
> Determining IP information for eth0... done.
> [ OK ]
> FATAL: Could not load /lib/modules/2.6.30-cachefs/modules.dep: No such file or directory
> Starting restorecond: [ OK ]
> Starting auditd: [ OK ]
> Starting irqbalance: [ OK ]
> Starting mcstransd: [ OK ]
> Starting rpcbind: modprobe: FATAL: Could not load /lib/modules/2.6.30-cachefs/modules.dep: No such file or directory
>
> rpcbind: cannot create socket for udp6
> modprobe: FATAL: Could not load /lib/modules/2.6.30-cachefs/modules.dep: No such file or directory
>
> rpcbind: cannot create socket for tcp6
> [ OK ]
> modprobe: FATAL: Could not load /lib/modules/2.6.30-cachefs/modules.dep: No such file or directory
>
> Starting NFS statd: [ OK ]
> Starting system message bus: [ OK ]
> Starting lm_sensors: not configured, run sensors-detect[WARNING]
> Starting sshd: modprobe: FATAL: Could not load /lib/modules/2.6.30-cachefs/modules.dep: No such file or directory
>
> [ OK ]
> modprobe: FATAL: Could not load /lib/modules/2.6.30-cachefs/modules.dep: No such file or directory
>
> Starting ntpd: [ OK ]
> modprobe: FATAL: Could not load /lib/modules/2.6.30-cachefs/modules.dep: No such file or directory
>
> SysRq : Changing Loglevel
> Loglevel set to 8
> Now booted
> Starting smartd: modprobe: FATAL: Could not load /lib/modules/2.6.30-cachefs/modules.dep: No such file or directory
>
> modprobe: FATAL: Could not load /lib/modules/2.6.30-cachefs/modules.dep: No such file or directory
>
> [ OK ]
>
> Fedora release 9 (Sulphur)
> Kernel 2.6.30-cachefs on an x86_64 (/dev/ttyS0)
>
> andromeda.procyon.org.uk login: modprobe: FATAL: Could not load /lib/modules/2.6.30-cachefs/modules.dep: No such file or directory
>
> modprobe: FATAL: Could not load /lib/modules/2.6.30-cachefs/modules.dep: No such file or directory
>
> modprobe: FATAL: Could not load /lib/modules/2.6.30-cachefs/modules.dep: No such file or directory
>
> modprobe: FATAL: Could not load /lib/modules/2.6.30-cachefs/modules.dep: No such file or directory
>
> warning: `capget01' uses 32-bit capabilities (legacy support in use)
> modprobe: FATAL: Could not load /lib/modules/2.6.30-cachefs/modules.dep: No such file or directory
>
> modprobe: FATAL: Could not load /lib/modules/2.6.30-cachefs/modules.dep: No such file or directory
>
> modprobe: FATAL: Could not load /lib/modules/2.6.30-cachefs/modules.dep: No such file or directory
>
> msgctl11 invoked oom-killer: gfp_mask=0xd0, order=1, oom_adj=0
> msgctl11 cpuset=/ mems_allowed=0
> Pid: 30549, comm: msgctl11 Not tainted 2.6.30-cachefs #106
> Call Trace:
> [<ffffffff81071dae>] ? oom_kill_process.clone.0+0xa9/0x245
> [<ffffffff81072075>] ? __out_of_memory+0x12b/0x142
> [<ffffffff810720f6>] ? out_of_memory+0x6a/0x94
> [<ffffffff8107479e>] ? __alloc_pages_nodemask+0x422/0x50b
> [<ffffffff81031110>] ? copy_process+0x93/0x113f
> [<ffffffff810748f1>] ? __get_free_pages+0x12/0x50
> [<ffffffff81031130>] ? copy_process+0xb3/0x113f
> [<ffffffff81081ae2>] ? handle_mm_fault+0x2d5/0x645
> [<ffffffff810322fb>] ? do_fork+0x13f/0x2ba
> [<ffffffff81022a0b>] ? do_page_fault+0x1f1/0x206
> [<ffffffff8100b0d3>] ? stub_clone+0x13/0x20
> [<ffffffff8100ad6b>] ? system_call_fastpath+0x16/0x1b
> Mem-Info:
> DMA per-cpu:
> CPU 0: hi: 0, btch: 1 usd: 0
> CPU 1: hi: 0, btch: 1 usd: 0
> DMA32 per-cpu:
> CPU 0: hi: 186, btch: 31 usd: 0
> CPU 1: hi: 186, btch: 31 usd: 47
> Active_anon:80388 active_file:0 inactive_anon:822
> inactive_file:2 unevictable:0 dirty:0 writeback:0 unstable:0
> free:2053 slab:38793 mapped:357 pagetables:60476 bounce:0
> DMA free:3916kB min:60kB low:72kB high:88kB active_anon:3608kB inactive_anon:128kB active_file:0kB inactive_file:0kB unevictable:0kB present:15364kB pages_scanned:0 all_unreclaimable? no
> lowmem_reserve[]: 0 968 968 968
> DMA32 free:4296kB min:3948kB low:4932kB high:5920kB active_anon:317944kB inactive_anon:3160kB active_file:0kB inactive_file:8kB unevictable:0kB present:992032kB pages_scanned:0 all_unreclaimable? no
> lowmem_reserve[]: 0 0 0 0
> DMA: 1*4kB 1*8kB 0*16kB 0*32kB 1*64kB 0*128kB 1*256kB 1*512kB 1*1024kB 1*2048kB 0*4096kB = 3916kB
> DMA32: 576*4kB 15*8kB 1*16kB 0*32kB 1*64kB 0*128kB 1*256kB 1*512kB 1*1024kB 0*2048kB 0*4096kB = 4296kB
> 1854 total pagecache pages
> 0 pages in swap cache
> Swap cache stats: add 0, delete 0, find 0/0
> Free swap = 0kB
> Total swap = 0kB
> 255744 pages RAM
> 5588 pages reserved
> 230698 pages shared
> 217103 pages non-shared
> Out of memory: kill process 25166 (msgctl11) score 133496 or a child
> Killed process 28855 (msgctl11)
> msgctl11 invoked oom-killer: gfp_mask=0xd0, order=1, oom_adj=0
> msgctl11 cpuset=/ mems_allowed=0
> Pid: 30312, comm: msgctl11 Not tainted 2.6.30-cachefs #106
> Call Trace:
> [<ffffffff81071dae>] ? oom_kill_process.clone.0+0xa9/0x245
> [<ffffffff81072075>] ? __out_of_memory+0x12b/0x142
> [<ffffffff810720f6>] ? out_of_memory+0x6a/0x94
> [<ffffffff8107479e>] ? __alloc_pages_nodemask+0x422/0x50b
> [<ffffffff81031110>] ? copy_process+0x93/0x113f
> [<ffffffff810748f1>] ? __get_free_pages+0x12/0x50
> [<ffffffff81031130>] ? copy_process+0xb3/0x113f
> [<ffffffff81029a83>] ? update_curr+0x53/0xdf
> [<ffffffff81081e00>] ? handle_mm_fault+0x5f3/0x645
> [<ffffffff810322fb>] ? do_fork+0x13f/0x2ba
> [<ffffffff81022a0b>] ? do_page_fault+0x1f1/0x206
> [<ffffffff8100b0d3>] ? stub_clone+0x13/0x20
> [<ffffffff8100ad6b>] ? system_call_fastpath+0x16/0x1b
> Mem-Info:
> DMA per-cpu:
> CPU 0: hi: 0, btch: 1 usd: 0
> CPU 1: hi: 0, btch: 1 usd: 0
> DMA32 per-cpu:
> CPU 0: hi: 186, btch: 31 usd: 0
> CPU 1: hi: 186, btch: 31 usd: 0
> Active_anon:79646 active_file:2 inactive_anon:4113
> inactive_file:0 unevictable:0 dirty:0 writeback:0 unstable:0
> free:1966 slab:38417 mapped:2 pagetables:61720 bounce:0
> DMA free:3916kB min:60kB low:72kB high:88kB active_anon:3608kB inactive_anon:256kB active_file:0kB inactive_file:0kB unevictable:0kB present:15364kB pages_scanned:0 all_unreclaimable? no
> lowmem_reserve[]: 0 968 968 968
> DMA32 free:3948kB min:3948kB low:4932kB high:5920kB active_anon:314976kB inactive_anon:16196kB active_file:8kB inactive_file:0kB unevictable:0kB present:992032kB pages_scanned:0 all_unreclaimable? no
> lowmem_reserve[]: 0 0 0 0
> DMA: 1*4kB 1*8kB 0*16kB 0*32kB 1*64kB 0*128kB 1*256kB 1*512kB 1*1024kB 1*2048kB 0*4096kB = 3916kB
> DMA32: 443*4kB 20*8kB 10*16kB 0*32kB 1*64kB 0*128kB 1*256kB 1*512kB 1*1024kB 0*2048kB 0*4096kB = 3948kB
> 36 total pagecache pages
> 0 pages in swap cache
> Swap cache stats: add 0, delete 0, find 0/0
> Free swap = 0kB
> Total swap = 0kB
> 255744 pages RAM
> 5588 pages reserved
> 151665 pages shared
> 220702 pages non-shared
> Out of memory: kill process 25166 (msgctl11) score 133404 or a child
> Killed process 28860 (msgctl11)
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