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    Subject2.6.30-rc6 -> final regression: warn_on tty_io.c, broken bluetooth

    2.6.30-rc6 was okay... definitely no warn on, and bluetooth was flakey
    but worked.

    I doublechecked config is same between -rc and final.

    Linux version 2.6.30 (pavel@toy.ucw.cz) (gcc version 4.3.2 (Debian 4.3.2-1) ) #7 PREEMPT Fri Jun 19 15:07:11 CEST 2009
    CPU: XScale-PXA270 [69054114] revision 4 (ARMv5TE), cr=0000397f
    CPU: VIVT data cache, VIVT instruction cache
    Machine: SHARP Spitz
    Memory policy: ECC disabled, Data cache writeback
    On node 0 totalpages: 16384
    free_area_init_node: node 0, pgdat c03a54ec, node_mem_map c03bd000
    Normal zone: 128 pages used for memmap
    Normal zone: 0 pages reserved
    Normal zone: 16256 pages, LIFO batch:3
    Run Mode clock: 208.00MHz (*16)
    Turbo Mode clock: 416.00MHz (*2.0, active)
    Memory clock: 208.00MHz (/2)
    System bus clock: 208.00MHz
    Built 1 zonelists in Zone order, mobility grouping on. Total pages: 16256
    Kernel command line: console=tty1 noinitrd root=/dev/hda3 rootfstype=ext3 user_debug=-1 fbcon=rotate:1 rootdelay=3 no_console_suspend
    NR_IRQS:192
    PID hash table entries: 256 (order: 8, 1024 bytes)
    Console: colour dummy device 80x30
    console [tty1] enabled
    Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
    Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
    Memory: 64MB = 64MB total
    Memory: 61084KB available (3360K code, 244K data, 88K init, 0K highmem)
    SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
    Calibrating delay loop... 415.33 BogoMIPS (lpj=2076672)
    Mount-cache hash table entries: 512
    CPU: Testing write buffer coherency: ok
    net_namespace: 668 bytes
    NET: Registered protocol family 16
    Sharp Scoop Device found at 0x10800000 -> 0xc4814000
    Sharp Scoop Device found at 0x08800040 -> 0xc4818040
    bio: create slab <bio-0> at 0
    I2C: i2c-0: PXA I2C adapter
    Bluetooth: Core ver 2.15
    NET: Registered protocol family 31
    Bluetooth: HCI device and connection manager initialized
    Bluetooth: HCI socket layer initialized
    cfg80211: Using static regulatory domain info
    cfg80211: Regulatory domain: US
    (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
    (2402000 KHz - 2472000 KHz @ 40000 KHz), (600 mBi, 2700 mBm)
    (5170000 KHz - 5190000 KHz @ 40000 KHz), (600 mBi, 2300 mBm)
    (5190000 KHz - 5210000 KHz @ 40000 KHz), (600 mBi, 2300 mBm)
    (5210000 KHz - 5230000 KHz @ 40000 KHz), (600 mBi, 2300 mBm)
    (5230000 KHz - 5330000 KHz @ 40000 KHz), (600 mBi, 2300 mBm)
    (5735000 KHz - 5835000 KHz @ 40000 KHz), (600 mBi, 3000 mBm)
    cfg80211: Calling CRDA for country: US
    NET: Registered protocol family 2
    IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
    TCP established hash table entries: 2048 (order: 2, 16384 bytes)
    TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
    TCP: Hash tables configured (established 2048 bind 2048)
    TCP reno registered
    NET: Registered protocol family 1
    PXA CPU 27x max frequency not defined (pxa27x_maxfreq), assuming pxa271 with 416000kHz maxfreq
    PXA CPU frequency change support initialized
    JFFS2 version 2.2. (NAND) (SUMMARY) Š 2001-2006 Red Hat, Inc.
    msgmni has been set to 119
    alg: No test for stdrng (krng)
    io scheduler noop registered
    io scheduler anticipatory registered (default)
    io scheduler deadline registered
    io scheduler cfq registered
    Console: switching to colour frame buffer device 80x30
    Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
    Uniform Multi-Platform E-IDE driver
    ide-gd driver 1.18
    PPP generic driver version 2.4.2
    orinoco 0.15 (David Gibson <hermes@gibson.dropbear.id.au>, Pavel Roskin <proski@gnu.org>, et al)
    orinoco_cs 0.15 (David Gibson <hermes@gibson.dropbear.id.au>, Pavel Roskin <proski@gnu.org>, et al)
    NAND device: Manufacturer ID: 0xec, Chip ID: 0x73 (Samsung NAND 16MiB 3,3V 8-bit)
    Scanning device for bad blocks
    Creating 3 MTD partitions on "sharpsl-nand":
    0x000000000000-0x000000700000 : "System Area"
    0x000000700000-0x000000c00000 : "Root Filesystem"
    0x000000c00000-0x000001000000 : "Home Filesystem"
    mice: PS/2 mouse device common for all mice
    input: Spitz Keyboard as /class/input/input0
    ads7846 spi2.0: touchscreen, irq 75
    input: ADS784x Touchscreen as /class/input/input1
    Bluetooth: HCI UART driver ver 2.2
    Bluetooth: HCI H4 protocol initialized
    Bluetooth: HCI BCSP protocol initialized
    cpuidle: using governor ladder
    Registered led device: spitz:amber:charge
    pcmcia_socket pcmcia_socket0: pccard: PCMCIA card inserted into slot 0
    pcmcia 0.0: pcmcia: registering new device pcmcia0.0
    Registered led device: spitz:green:hddactivity
    ttyS0: detected caps 00000700 should be 00000100
    0.0: ttyS0 at I/O 0xc48202f8 (irq = 169) is a 16C950/954
    TCP cubic registered
    NET: Registered protocol family 17
    Bluetooth: L2CAP ver 2.13
    Bluetooth: L2CAP socket layer initialized
    Bluetooth: RFCOMM socket layer initialized
    Bluetooth: RFCOMM TTY layer initialized
    Bluetooth: RFCOMM ver 1.11
    Bluetooth: BNEP (Ethernet Emulation) ver 1.3
    Bluetooth: BNEP filters: protocol multicast
    Bluetooth: HIDP (Human Interface Emulation) ver 1.2
    lib80211: common routines for IEEE802.11 drivers
    lib80211_crypt: registered algorithm 'NULL'
    XScale iWMMXt coprocessor detected.
    Waiting 3sec before mounting root device...
    pcmcia_socket pcmcia_socket1: pccard: PCMCIA card inserted into slot 1
    pcmcia 1.0: pcmcia: registering new device pcmcia1.0
    Probing IDE interface ide0...
    sharpsl-pm sharpsl-pm: AC Status: 0
    sharpsl-pm sharpsl-pm: Battery: voltage: 199, status: 0, percentage: 65, time: -29837
    hda: HMS360404D5CF00, CFA DISK drive
    ide0 at 0xc4840000-0xc4840007,0xc484000e on irq 170
    hda: max request size: 128KiB
    hda: 7999488 sectors (4095 MB) w/128KiB Cache, CHS=7936/16/63
    hda: cache flushes supported
    hda: hda1 hda2 hda3
    ide-cs: hda: Vpp = 0.0
    EXT3-fs: INFO: recovery required on readonly filesystem.
    EXT3-fs: write access will be enabled during recovery.
    sharpsl-pm sharpsl-pm: Battery: voltage: 196, status: 0, percentage: 58, time: -28336
    kjournald starting. Commit interval 5 seconds
    EXT3-fs: recovery complete.
    EXT3-fs: mounted filesystem with ordered data mode.
    VFS: Mounted root (ext3 filesystem) readonly on device 3:3.
    Freeing init memory: 88K
    sharpsl-pm sharpsl-pm: Battery: voltage: 195, status: 0, percentage: 55, time: -26836
    EXT3-fs warning: maximal mount count reached, running e2fsck is recommended
    EXT3 FS on hda3, internal journal
    kjournald starting. Commit interval 5 seconds
    EXT3-fs warning: maximal mount count reached, running e2fsck is recommended
    EXT3 FS on hda2, internal journal
    EXT3-fs: recovery complete.
    EXT3-fs: mounted filesystem with ordered data mode.
    sharpsl-pm sharpsl-pm: Battery: voltage: 194, status: 0, percentage: 53, time: -25336
    sharpsl-pm sharpsl-pm: AC Status: 1
    sharpsl-pm sharpsl-pm: Turning Charger On
    sharpsl-pm sharpsl-pm: Toogling Charger at time: ffffa1db
    sharpsl-pm sharpsl-pm: Average: 122 from values: 122, 122, 123, 122, 122
    sharpsl-pm sharpsl-pm: Temperature: 122
    sharpsl-pm sharpsl-pm: Average: 121 from values: 120, 121, 121, 122, 122
    sharpsl-pm sharpsl-pm: AC Voltage: 121
    sharpsl-pm sharpsl-pm: Charge LED On
    sharpsl-pm sharpsl-pm: Battery: voltage: 208, status: 0, percentage: 88, time: -23836
    Adding 55160k swap on /SWAP. Priority:-1 extents:15 across:55220k
    sharpsl-pm sharpsl-pm: Battery: voltage: 209, status: 0, percentage: 90, time: -22336
    bcsp_recv: Out-of-order packet arrived, got 1 expected 0
    ------------[ cut here ]------------
    WARNING: at drivers/char/tty_io.c:1335 tty_open+0x358/0x494()
    Modules linked in:
    [<c0023a8c>] (unwind_backtrace+0x0/0xe4) from [<c003504c>] (warn_slowpath_common+0x4c/0x80)
    [<c003504c>] (warn_slowpath_common+0x4c/0x80) from [<c017b910>] (tty_open+0x358/0x494)
    [<c017b910>] (tty_open+0x358/0x494) from [<c0098228>] (chrdev_open+0x148/0x224)
    [<c0098228>] (chrdev_open+0x148/0x224) from [<c0093094>] (__dentry_open+0x104/0x2b4)
    [<c0093094>] (__dentry_open+0x104/0x2b4) from [<c0093328>] (nameidata_to_filp+0x58/0x60)
    [<c0093328>] (nameidata_to_filp+0x58/0x60) from [<c00a1268>] (do_filp_open+0x1dc/0x804)
    [<c00a1268>] (do_filp_open+0x1dc/0x804) from [<c0092ee0>] (do_sys_open+0x68/0xec)
    [<c0092ee0>] (do_sys_open+0x68/0xec) from [<c001ef20>] (ret_fast_syscall+0x0/0x2c)
    ---[ end trace 76f9d103516197ad ]---
    bcsp_recv: Out-of-order packet arrived, got 1 expected 0
    sharpsl-pm sharpsl-pm: Battery: voltage: 209, status: 0, percentage: 90, time: -20836
    bcsp_pkt_cull: Removed only 1 out of 0 pkts
    bcsp_pkt_cull: Removed only 1 out of 0 pkts
    bcsp_pkt_cull: Removed only 2 out of 1 pkts
    ------------[ cut here ]------------
    WARNING: at drivers/char/tty_io.c:1335 tty_open+0x358/0x494()
    Modules linked in:
    [<c0023a8c>] (unwind_backtrace+0x0/0xe4) from [<c003504c>] (warn_slowpath_common+0x4c/0x80)
    [<c003504c>] (warn_slowpath_common+0x4c/0x80) from [<c017b910>] (tty_open+0x358/0x494)
    [<c017b910>] (tty_open+0x358/0x494) from [<c0098228>] (chrdev_open+0x148/0x224)
    [<c0098228>] (chrdev_open+0x148/0x224) from [<c0093094>] (__dentry_open+0x104/0x2b4)
    [<c0093094>] (__dentry_open+0x104/0x2b4) from [<c0093328>] (nameidata_to_filp+0x58/0x60)
    [<c0093328>] (nameidata_to_filp+0x58/0x60) from [<c00a1268>] (do_filp_open+0x1dc/0x804)
    [<c00a1268>] (do_filp_open+0x1dc/0x804) from [<c0092ee0>] (do_sys_open+0x68/0xec)
    [<c0092ee0>] (do_sys_open+0x68/0xec) from [<c001ef20>] (ret_fast_syscall+0x0/0x2c)
    ---[ end trace 76f9d103516197ae ]---
    SysRq : Changing Loglevel
    Loglevel set to 1
    bcsp_recv: Out-of-order packet arrived, got 1 expected 0
    bcsp_pkt_cull: Removed only 1 out of 0 pkts
    bcsp_pkt_cull: Removed only 2 out of 1 pkts
    sharpsl-pm sharpsl-pm: Battery: voltage: 209, status: 0, percentage: 90, time: -19336

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