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    Subjectx86_64 account-for-memmap patch in 2.6.18-rc4-mm3 doesn't boot.
    The following patch in 2.6.18-rc4-mm3 is broken on my x86_64:

    account-for-memmap-and-optionally-the-kernel-image-as-holes.patch

    The failure is 100% reproducible.

    The system has a pair of dual-core Intel Xeon 5100 series (Woodcrest)
    processors (4 logical CPUs total) and 2 GBytes of ram.

    The .config is what one gets from 'make defconfig' for arch x86_64,
    plus the following changes:

    =========================== begin ===========================
    --- .config.def 2006-08-31 04:29:22.100311614 -0500
    +++ .config 2006-08-31 04:29:03.247761750 -0500
    @@ -1,7 +1,7 @@
    #
    # Automatically generated make config: don't edit
    # Linux kernel version: 2.6.18-rc4-mm3
    -# Thu Aug 31 04:29:22 2006
    +# Thu Aug 31 04:07:54 2006
    #
    CONFIG_X86_64=y
    CONFIG_64BIT=y
    @@ -44,7 +44,7 @@
    # CONFIG_AUDIT is not set
    CONFIG_IKCONFIG=y
    CONFIG_IKCONFIG_PROC=y
    -# CONFIG_CPUSETS is not set
    +CONFIG_CPUSETS=y
    # CONFIG_RELAY is not set
    CONFIG_INITRAMFS_SOURCE=""
    CONFIG_UID16=y
    @@ -205,7 +205,7 @@
    # CONFIG_ACPI_ASUS is not set
    # CONFIG_ACPI_IBM is not set
    # CONFIG_ACPI_TOSHIBA is not set
    -CONFIG_ACPI_SONY=m
    +# CONFIG_ACPI_SONY is not set
    CONFIG_ACPI_BLACKLIST_YEAR=0
    # CONFIG_ACPI_DEBUG is not set
    CONFIG_ACPI_EC=y
    @@ -1270,7 +1270,11 @@
    # CONFIG_REISERFS_FS_SECURITY is not set
    # CONFIG_JFS_FS is not set
    CONFIG_FS_POSIX_ACL=y
    -# CONFIG_XFS_FS is not set
    +CONFIG_XFS_FS=y
    +# CONFIG_XFS_QUOTA is not set
    +# CONFIG_XFS_SECURITY is not set
    +# CONFIG_XFS_POSIX_ACL is not set
    +# CONFIG_XFS_RT is not set
    # CONFIG_GFS2_FS is not set
    # CONFIG_OCFS2_FS is not set
    # CONFIG_MINIX_FS is not set
    ============================ end ============================
    The boot fails with the following console output:

    =========================== begin ===========================
    root (hd0,0)
    Filesystem type is ext2fs, partition type 0x83
    kernel /vmlinuz.pj2 root=/dev/sda3 console=ttyS1,115200 showopts pj2
    [Linux-bzImage, setup=0x1c00, size=0x2b66e5]
    Linux version 2.6.18-rc4-mm3 (pj@spandau) (gcc version 4.1.0 (SUSE Linux)) #48 SMP Thu Aug 31 04:22:41 CDT 2006
    Command line: root=/dev/sda3 console=ttyS1,115200 showopts pj2
    BIOS-provided physical RAM map:
    BIOS-e820: 0000000000000000 - 000000000009f000 (usable)
    BIOS-e820: 000000000009f000 - 0000000000100000 (reserved)
    BIOS-e820: 0000000000100000 - 000000007f932000 (usable)
    BIOS-e820: 000000007f932000 - 000000007f9d0(ACPI NVS)
    BIOS-e820: 000000007f9d0000 - 000000007fa42000 (usable)
    BIOS-e820: 000000007fa420000 - 000000007fb2b000 (usable)
    BIOS-e820: 000000007fb2b000 - 000000007fb3a000 (ACPI data)
    B0000000000-000000007fc00000
    Bootmem setup node 0 0000000000000000-000000007fc00000
    Zone PFN raProcessor #0 (Bootup-CPU)
    ACPI: LAPIC (acpi_id[0x01] lapic_id[0x06] enabled)
    Processor #6
    ACPapic_id[0x85] disabled)
    ACPI: LAPIC (acpi_id[0x06] lapic_id[0x86] disabled)
    ACPI: LAPIC (acpi_x02] high level lint[0x1])
    ACPI: LAPIC_NMI (acpi_id[0x03] high level lint[0x1])
    ACPI: LAPIC_NM0x08] address[0xfec00000] gsi_base[0])
    IOAPIC[0]: apic_id 8, address 0xfec00000, GSI 0-23
    ACPI0x0b] address[0xfec84400] gsi_base[72])
    IOAPIC[3]: apic_id 11, address 0xfec84400, GSI 72-95
    AUsing ACPI (MADT) for SMP configuration information
    Allocating PCI resources starting at 800000ot=/dev/sda3 console=ttyS1,115200 showopts pj2
    Initializing CPU#0
    PID hash table entries: 40962 (order: 8, 1048576 bytes)
    Checking aperture...
    Memory: 2052128k/2093056k available (3519k kerved, 2323k data, 280k init)
    Calibrating delay using timer specific routine.. 5324.66 BogoMIPS (lpj=10649332)
    Mount-cache hash table entries: 256
    CPU: L1 I cache: 32K, L1 D cache: 32K
    CPU: L2 cache: 4096K
    CPU 0/0 -> Node 0
    using mwait in idle threads.
    CPU: Physical Processor ID: 0
    CPU: Processor Core ID: 0
    CPU0: Thermal monitoring enabled (TM2)
    SMP alternatives: switching to UP code
    ACPI: Core revision 20060707
    Using local APIC timer interrupts.
    result 20781304
    Detected 20.781 MHz APIC timer.
    SMP alternatives: switching to SMP code
    Booting processor 1/4 APIC 0x6
    Initializing CPU#1
    Calibrating delay using timer specific routine.. 5320.16 BogoMIPS (lpj=10640330)
    CPU: L1 I cache: 32K, L1 D cache: 32K
    CPU: L2 cache: 4096K
    CPU 1/6 -> Node 0
    CPU: Physical Processor ID: 3
    CPU: Processor Core ID: 0
    CPU1: Thermal monitoring enabled (TM2)
    Genuine Intel(R) CPU @ 2.66GHz stepping 04
    SMP alternatives: switching to SMP code
    Booting processor 2/4 APIC 0x1
    Initializing CPU#2
    Calibrating delay using timer specific routine.. 5320.16 BogoMIPS (lpj=10640332)
    CPU: L1 I cache: 32K, L1 D cache: 32K
    CPU: L2 cache: 4096K
    CPU 2/1 -> Node 0
    CPU: Physical Processor ID: 0
    CPU: Processor Core ID: 1
    CPU2: Thermal monitoring enabled (TM2)
    Genuine Intel(R) CPU @ 2.66GHz stepping 04
    SMP alternatives: switching to SMP code
    Booting processor 3/4 APIC 0x7
    Initializing CPU#3
    Calibrating delay using timer specific routine.. 5320.04 BogoMIPS (lpj=10640092)
    CPU: L1 I cache: 32K, L1 D cache: 32K
    CPU: L2 cache: 4096K
    CPU 3/7 -> Node 0
    CPU: Physical Processor ID: 3
    CPU: Processor Core ID: 1
    CPU3: Thermal monitoring enabled (TM2)
    Genuine Intel(R) CPU @ 2.66GHz stepping 04
    Brought up 4 CPUs
    testing NMI watchdog ... OK.
    time.c: Using 14.318180 MHz WALL HPET GTOD HPET/TSC timer.
    time.c: Detected 2660.007 MHz processor.
    migration_cost=30,7937
    NET: Registered protocol family 16
    ACPI: bus type pci registered
    PCI: Using MMCONFIG at a0000000
    ACPI: Interpreter enabled
    ACPI: Using IOAPIC for interrupt routing
    ACPI: PCI Root Bridge [PCI0] (0000:00)
    PCI: Ignoring BAR0-3 of IDE controller 0000:00:1f.1
    PCI: PXH quirk detected, disabling MSI for SHPC device
    PCI: PXH quirk detected, disabling MSI for SHPC device
    PCI: Transparent bridge - 0000:00:1e.0
    ACPI: PCI Interrupt Link [LNKA] (IRQs 5 7 *10 11)
    ACPI: PCI Interrupt Link [LNKB] (IRQs 5 7 10 *11)
    ACPI: PCI Interrupt Link [LNKC] (IRQs 5 7 *10 11)
    ACPI: PCI Interrupt Link [LNKD] (IRQs *5 7 10 11)
    ACPI: PCI Interrupt Link [LNKE] (IRQs *5 7 10 11)
    ACPI: PCI Interrupt Link Intel 82802 RNG detected
    SCSI subsystem initialized
    usbcore: registered new interface driver uirq". If it helps, post a report
    hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0
    hpet0: 3 64-bit timeow: b8b00000-b8bfffff
    PCI: Bridge: 0000:03:00.2
    IO window: disabled.
    MEM window: disabled.
    MEM window: disabled.
    PREFETCH window: disabled.
    PCI: Bridge: 0000:02:02.0
    IO windowisabled.
    MEM window: disabled.
    PREFETCH window: disabled.
    PCI: Bridge: 0000:00:02.0
    IOdow: disabled.
    MEM window: disabled.
    PREFETCH window: disabled.
    PCI: Bridge: 0000:00:05.0c:00.2
    IO window: disabled.
    MEM window: disabled.
    PREFETCH window: disabled.
    PCI: BridEFETCH window: disabled.
    PCI: Bridge: 0000:00:1e.0
    IO window: 1000-1fff
    MEM window: b8c00terrupt 0000:01:00.0[A] -> GSI 16 (level, low) -> IRQ 169
    ACPI: PCI Interrupt 0000:02:00.0[A] - IRQ 169
    ACPI: PCI Interrupt 0000:00:03.0[A] -> GSI 16 (level, low) -> IRQ 169
    ACPI: PCI Inter Interrupt 0000:00:07.0[A] -> GSI 16 (level, low) -> IRQ 169
    IP route cache hash table entries: 65536 (order: 7, 524288 bytes)
    TCP established hash table entries: 262144 (order: 10, 4194304 bytes)
    TCP bind hash table entries: 65536 (order: 8, 1048576 TCP: Hash tables configured (established 262144 bind 65536)
    TCP reno registered
    Total HugeTLB io scheduler noop registered
    io scheduler deadline registered
    io scheduler cfq registered (def0000:00:1d.7 EHCI: BIOS handoff failed (BIOS bug ?) 01010001
    assign_interrupt_mode Found MSI capability
    assign_interrupt_mode Found MSI capability
    assign_interrupt_mode Found MSI capability
    assign_interrupt_mode Found MSI capability
    assign_interrupt_mode Found MSI capability
    assign_interrupt_mode Found MSI capability
    assign_interrupt_mode Found MSI capability
    assign_interrupt_mode Found MSI capability
    assign_interrupt_mode Found MSI capability
    aer: probe of 0000:00:02.0:pcie01 failed with error 2
    aer: probe of 0000:00:03.0:pcie01 failed with error 1
    aer: probe of 0000:00:04.0:pcie01 failed failed with error 2
    aer: probe of 0000:00:07.0:pcie01 failed with error 2
    ACPI: Power Button r Device is not present [20060707]
    ACPI: Getting cpuindex for acpiid 0x4
    ACPI Exception (acpi_060707]
    ACPI: Getting cpuindex for acpiid 0x6
    ACPI Exception (acpi_processor-0681): AE_NOT_FOUReal Time Clock Driver v1.12ac
    Linux agpgart interface v0.101 (c) Dave Jones
    Serial: 8250/1655/O 0x2f8 (irq = 3) is a 16550A
    floppy0: no floppy controllers found
    RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
    loop: loaded (max 8 devices)
    IntI 17 sharing vector 0x42 and IRQ 17
    ACPI: PCI Interrupt 0000:07:00.0[A] -> GSI 18 (level, low) -> IRQ 66
    e1000: 0000:07:00.0: e1000_probe: (PCI Express:2.5Gb/s:Width x4) 00:04:23:cf:2d:d2
    e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
    GSI 18 sharing vector 0x4A and IRQ 18
    ACPI: PCI Interrupt 0000:07:00.1[B] -> GSI 19 (level, low) -> IRQ 74
    e1000: 0000:07:00.1:ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
    hda: ATAPI 24X DVD-ROM drive, 256kB Cache, UDMA(33)
    Uniform CD-ROM driver Revision: 3.20
    megaraid cmm: 2.20.2.7 (Release Date: Sun Jul 16 00:01:03 EST 2006)
    megaraid: 2.20.4.9 (Release Date: Sun Jul 16 12:27:22 EST 2006)
    megasas: 00.00.03.01 Sun May 14 22:49:52 PDT 2006
    megasas: 0x1000:0x0411:0x8086:0x3501: bus 4:slot 14:func 0
    ACPI: PCI Interrupt 0000:04:0e.0[A] -> GSI 18 (level, low) -> IRQ 66
    scsi0 : LSI Logic SAS based MegaRAID driver
    scsi 0:0:0:0: Direct-Access ATA HDT722525DLA380 A80A PQ: 0 ANSI: 5
    scsi 0:0:1:0: Direct-Access ATA HDS725050KLA360 AB0A PQ: 0 ANSI: 5
    scsi 0:0:2:0: Direct-Access ATA HDS725050KLA360 AB0A PQ: 0 ANSI: 5
    scsi 0:0:3:0: Direct-Access Ascsi 0:2:0:0: Direct-Access INTEL SROMBSAS18E 1.00 PQ: 0 ANSI: 5
    scsi 0:2:1:0: Direswapper invoked oom-killer: gfp_mask=0xd1, order=0, oomkilladj=0
    Call Trace:
    [<ffffffff802025bc67>] __alloc_pages+0x229/0x2b2
    [<ffffffff80274e46>] cache_grow+0x134/0x333
    [<ffffffff802really_probe+0x47/0xc9
    [<ffffffff803eea20>] __driver_attach+0x6f/0xaf
    [<ffffffff803ee214>] bffffffff803abf12>] acpi_ds_init_one_object+0x0/0x82
    [<ffffffff80207046>] init+0x0/0x306
    [<ffu 0 hot: high 186, batch 31 used:24
    cpu 0 cold: high 62, batch 15 used:0
    cpu 1 hot: high 186, 15 used:0
    Node 0 Normal per-cpu: empty
    Active:0 inactive:0 dirty:0 writeback:0 unstable:0 freeB high:0kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no
    lowmem_res 0*2048kB 496*4096kB = 2035560kB
    Node 0 Normal: empty
    Swap cache: add 0, delete 0, find 0/0, r swap cached
    Kernel panic - not syncing: Out of memory and no killable processes...
    ============================ end ============================

    Without this bad patch, the system boot continues with the following
    messages, slightly overlapping my presentation with the above output:


    ========================== begin ===========================
    ...
    ACPI: PCI Interrupt 0000:04:0e.0[A] -> GSI 18 (level, low) -> IRQ 66
    scsi0 : LSI Logic SAS based MegaRAID driver
    scsi 0:0:0:0: Direct-Access ATA HDT722525DLA380 A80A PQ: 0 ANSI: 5
    scsi 0:0:1:0: Direct-Access ATA HDS725050KLA360 AB0A PQ: 0 ANSI: 5
    scsi 0:0:2:0: Direct-Access ATA HDS725050KLA360 AB0A PQ: 0 ANSI: 5
    scsi 0:0:3:0: Direct-Access ATA HDS725050KLA360 AB0A PQ: 0 ANSI: 5
    scsi 0:0:4:0: Direct-Access ATA HDS725050KLA360 AB0A PQ: 0 ANSI: 5
    scsi 0:2:0:0: Direct-Access INTEL SROMBSAS18E 1.00 PQ: 0 ANSI: 5
    scsi 0:2:1:0: Direct-Access INTEL SROMBSAS18E 1.00 PQ: 0 ANSI: 5
    SCSI devi: write through
    SCSI device sda: 486326272 512-byte hdwr sectors (248999 MB)
    sda: test WP fail sda1 sda2 sda3
    sd 0:2:0:0: Attached scsi disk sda
    SCSI device sdb: 2923825152 512-byte hdwr s assuming drive cache: write through
    SCSI device sdb: 2923825152 512-byte hdwr sectors (1496998 sdb1
    sd 0:2:1:0: Attached scsi disk sdb
    sd 0:2:0:0: Attached scsi generic sg0 type 0
    sd 0:2:aw1394: /dev/raw1394 device initialized
    GSI 20 sharing vector 0x5A and IRQ 20
    ACPI: PCI Interr1d.7: debug port 1
    ...
    ============================ end ============================

    --
    I won't rest till it's the best ...
    Programmer, Linux Scalability
    Paul Jackson <pj@sgi.com> 1.925.600.0401
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