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    SubjectRe: 2.6.9-rc4-mm1 : oops when rmmod uhci_hcd [was: 2.6.9-rc3-mm2 : oops...]

    Alan Stern wrote:
    [snip]
    > My impression is that this problem arises somewhere within or
    > below the free_irq routine. I don't have the -mm2 sources, so I
    > can't be any more precise than that.

    Here is an updated dmesg for kernel 2.6.9-rc4-mm1. But I'm afraid it
    won't give more information, as the call stack is identical to the
    2.6.9-rc3-mm2 one.

    I will try a vanilla kernel if it's needed.

    --
    laurent

    Linux version 2.6.9-rc4-mm1 (laurent@antares.localdomain) (gcc version 3.3.2 (Mandrake Linux 10.0 3.3.2-6mdk)) #15 Mon Oct 11 22:07:48 CEST 2004
    BIOS-provided physical RAM map:
    BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
    BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
    BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
    BIOS-e820: 0000000000100000 - 000000000ffec000 (usable)
    BIOS-e820: 000000000ffec000 - 000000000ffef000 (ACPI data)
    BIOS-e820: 000000000ffef000 - 000000000ffff000 (reserved)
    BIOS-e820: 000000000ffff000 - 0000000010000000 (ACPI NVS)
    BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved)
    255MB LOWMEM available.
    On node 0 totalpages: 65516
    DMA zone: 4096 pages, LIFO batch:1
    Normal zone: 61420 pages, LIFO batch:14
    HighMem zone: 0 pages, LIFO batch:1
    DMI 2.3 present.
    ACPI: RSDP (v000 ASUS ) @ 0x000f6a80
    ACPI: RSDT (v001 ASUS A7V133-C 0x30303031 MSFT 0x31313031) @ 0x0ffec000
    ACPI: FADT (v001 ASUS A7V133-C 0x30303031 MSFT 0x31313031) @ 0x0ffec080
    ACPI: BOOT (v001 ASUS A7V133-C 0x30303031 MSFT 0x31313031) @ 0x0ffec040
    ACPI: DSDT (v001 ASUS A7V133-C 0x00001000 MSFT 0x0100000b) @ 0x00000000
    ACPI: PM-Timer IO Port: 0xe408
    Built 1 zonelists
    No local APIC present or hardware disabled
    Initializing CPU#0
    Kernel command line: resume=/dev/hdb6 root=/dev/hda6 init S
    PID hash table entries: 1024 (order: 10, 16384 bytes)
    Detected 1410.673 MHz processor.
    Using pmtmr for high-res timesource
    Console: colour VGA+ 80x25
    Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
    Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
    Memory: 256120k/262064k available (1775k kernel code, 5388k reserved, 793k data, 152k init, 0k highmem)
    Checking if this processor honours the WP bit even in supervisor mode... Ok.
    Calibrating delay loop... 2793.47 BogoMIPS (lpj=1396736)
    Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
    CPU: After generic identify, caps: 0383f9ff c1cbf9ff 00000000 00000000
    CPU: After vendor identify, caps: 0383f9ff c1cbf9ff 00000000 00000000
    CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
    CPU: L2 Cache: 256K (64 bytes/line)
    CPU: After all inits, caps: 0383f9ff c1cbf9ff 00000000 00000020
    Intel machine check architecture supported.
    Intel machine check reporting enabled on CPU#0.
    CPU: AMD Athlon(TM) XP 1600+ stepping 02
    Enabling fast FPU save and restore... done.
    Enabling unmasked SIMD FPU exception support... done.
    Checking 'hlt' instruction... OK.
    ACPI: IRQ9 SCI: Edge set to Level Trigger.
    NET: Registered protocol family 16
    PCI: PCI BIOS revision 2.10 entry at 0xf1180, last bus=1
    PCI: Using configuration type 1
    mtrr: v2.0 (20020519)
    ACPI: Subsystem revision 20040816
    ACPI: Interpreter enabled
    ACPI: Using PIC for interrupt routing
    ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 9 10 *11 12 14 15)
    ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 9 10 11 12 14 15) *0, disabled.
    ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 7 9 *10 11 12 14 15)
    ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 *5 6 7 9 10 11 12 14 15)
    ACPI: PCI Root Bridge [PCI0] (00:00)
    PCI: Probing PCI hardware (bus 00)
    ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
    Linux Plug and Play Support v0.97 (c) Adam Belay
    PCI: Using ACPI for IRQ routing
    ** PCI interrupts are no longer routed automatically. If this
    ** causes a device to stop working, it is probably because the
    ** driver failed to call pci_enable_device(). As a temporary
    ** workaround, the "pci=routeirq" argument restores the old
    ** behavior. If this argument makes the device work again,
    ** please email the output of "lspci" to bjorn.helgaas@hp.com
    ** so I can fix the driver.
    Simple Boot Flag at 0x3a set to 0x1
    Machine check exception polling timer started.
    Initializing Cryptographic API
    Applying VIA southbridge workaround.
    PCI: Disabling Via external APIC routing
    vesafb: probe of vesafb0 failed with error -6
    ACPI: Power Button (FF) [PWRF]
    ACPI: Processor [CPU0] (supports C1 C2, 16 throttling states)
    ACPI: PS/2 Keyboard Controller [PS2K] at I/O 0x60, 0x64, irq 1
    ACPI: PS/2 Mouse Controller [PS2M] at irq 12
    serio: i8042 AUX port at 0x60,0x64 irq 12
    serio: i8042 KBD port at 0x60,0x64 irq 1
    Serial: 8250/16550 driver $Revision: 1.90 $ 8 ports, IRQ sharing disabled
    ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
    ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
    io scheduler noop registered
    io scheduler anticipatory registered
    io scheduler deadline registered
    io scheduler cfq registered
    Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
    ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
    VP_IDE: IDE controller at PCI slot 0000:00:04.1
    VP_IDE: chipset revision 6
    VP_IDE: not 100% native mode: will probe irqs later
    VP_IDE: VIA vt82c686b (rev 40) IDE UDMA100 controller on pci0000:00:04.1
    ide0: BM-DMA at 0xd800-0xd807, BIOS settings: hda:DMA, hdb:DMA
    ide1: BM-DMA at 0xd808-0xd80f, BIOS settings: hdc:DMA, hdd:DMA
    Probing IDE interface ide0...
    hda: ST340016A, ATA DISK drive
    hdb: Maxtor 6Y080L0, ATA DISK drive
    elevator: using anticipatory as default io scheduler
    ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
    Probing IDE interface ide1...
    hdc: CD-950E/AKU, ATAPI CD/DVD-ROM drive
    hdd: LITE-ON LTR-48125S, ATAPI CD/DVD-ROM drive
    ide1 at 0x170-0x177,0x376 on irq 15
    Probing IDE interface ide2...
    ide2: Wait for ready failed before probe !
    Probing IDE interface ide3...
    ide3: Wait for ready failed before probe !
    Probing IDE interface ide4...
    ide4: Wait for ready failed before probe !
    Probing IDE interface ide5...
    ide5: Wait for ready failed before probe !
    hda: max request size: 128KiB
    hda: 78165360 sectors (40020 MB) w/2048KiB Cache, CHS=65535/16/63, UDMA(100)
    hda: cache flushes not supported
    hda: hda1 hda2 hda3 < hda5 hda6 hda7 hda8 hda9 > hda4
    hdb: max request size: 128KiB
    hdb: 160086528 sectors (81964 MB) w/2048KiB Cache, CHS=65535/16/63, UDMA(100)
    hdb: cache flushes supported
    hdb: hdb1 hdb2 < hdb5 hdb6 hdb7 hdb8 >
    mice: PS/2 mouse device common for all mice
    input: AT Translated Set 2 keyboard on isa0060/serio0
    input: ImExPS/2 Generic Explorer Mouse on isa0060/serio1
    NET: Registered protocol family 2
    IP: routing cache hash table of 2048 buckets, 16Kbytes
    TCP: Hash tables configured (established 16384 bind 32768)
    NET: Registered protocol family 1
    ACPI: (supports S0 S1 S3 S4 S5)
    ACPI wakeup devices:
    PWRB PCI0 UAR1 UAR2 USB0 USB1
    BIOS EDD facility v0.16 2004-Jun-25, 2 devices found
    EXT3-fs: mounted filesystem with ordered data mode.
    VFS: Mounted root (ext3 filesystem) readonly.
    Freeing unused kernel memory: 152k freed
    kjournald starting. Commit interval 5 seconds
    Real Time Clock Driver v1.12
    usbcore: registered new driver usbfs
    usbcore: registered new driver hub
    USB Universal Host Controller Interface driver v2.2
    ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 5
    PCI: setting IRQ 5 as level-triggered
    ACPI: PCI interrupt 0000:00:04.2[D] -> GSI 5 (level, low) -> IRQ 5
    uhci_hcd 0000:00:04.2: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller
    uhci_hcd 0000:00:04.2: irq 5, io base 0xd400
    uhci_hcd 0000:00:04.2: new USB bus registered, assigned bus number 1
    hub 1-0:1.0: USB hub found
    hub 1-0:1.0: 2 ports detected
    ACPI: PCI interrupt 0000:00:04.3[D] -> GSI 5 (level, low) -> IRQ 5
    uhci_hcd 0000:00:04.3: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (#2)
    uhci_hcd 0000:00:04.3: irq 5, io base 0xd000
    uhci_hcd 0000:00:04.3: new USB bus registered, assigned bus number 2
    hub 2-0:1.0: USB hub found
    hub 2-0:1.0: 2 ports detected
    usb 1-2: new low speed USB device using address 2
    EXT3 FS on hda6, internal journal
    device-mapper: 4.1.0-ioctl (2003-12-10) initialised: dm@uk.sistina.com
    input: USB HID v1.10 Gamepad [THRUSTMASTER FireStorm Dual Analog 2] on usb-0000:00:04.2-2
    usbcore: registered new driver usbhid
    /home/laurent/kernel/linux-2.6/drivers/usb/input/hid-core.c: v2.0:USB HID core driver
    Adding 64220k swap on /dev/hda5. Priority:-1 extents:1
    Adding 1052216k swap on /dev/hdb6. Priority:-2 extents:1
    Linux agpgart interface v0.100 (c) Dave Jones
    agpgart: Detected VIA Twister-K/KT133x/KM133 chipset
    agpgart: Maximum main memory to use for agp memory: 203M
    agpgart: AGP aperture is 64M @ 0xe4000000
    ReiserFS: dm-1: found reiserfs format "3.6" with standard journal
    ReiserFS: dm-1: using ordered data mode
    ReiserFS: dm-1: journal params: device dm-1, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
    ReiserFS: dm-1: checking transaction log (dm-1)
    ReiserFS: dm-1: Using r5 hash to sort names
    ReiserFS: dm-0: found reiserfs format "3.6" with standard journal
    ReiserFS: dm-0: using ordered data mode
    ReiserFS: dm-0: journal params: device dm-0, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
    ReiserFS: dm-0: checking transaction log (dm-0)
    ReiserFS: dm-0: Using r5 hash to sort names
    kjournald starting. Commit interval 5 seconds
    EXT3 FS on dm-2, internal journal
    EXT3-fs: mounted filesystem with ordered data mode.
    ohci1394: $Rev: 1223 $ Ben Collins <bcollins@debian.org>
    ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 10
    PCI: setting IRQ 10 as level-triggered
    ACPI: PCI interrupt 0000:00:0a.0[A] -> GSI 10 (level, low) -> IRQ 10
    ohci1394: fw-host0: Unexpected PCI resource length of 1000!
    ohci1394: fw-host0: OHCI-1394 1.0 (PCI): IRQ=[10] MMIO=[d5800000-d58007ff] Max Packet=[2048]
    ieee1394: Host added: ID:BUS[0-00:1023] GUID[00308d0120e085ca]
    ne2k-pci.c:v1.03 9/22/2003 D. Becker/P. Gortmaker
    http://www.scyld.com/network/ne2k-pci.html
    ACPI: PCI interrupt 0000:00:0d.0[A] -> GSI 5 (level, low) -> IRQ 5
    eth0: RealTek RTL-8029 found at 0xa000, IRQ 5, 00:40:95:46:6E:2D.
    uhci_hcd 0000:00:04.2: remove, state 1
    usb usb1: USB disconnect, address 1
    usb 1-2: USB disconnect, address 2
    uhci_hcd 0000:00:04.2: USB bus 1 deregistered
    uhci_hcd 0000:00:04.3: remove, state 1
    usb usb2: USB disconnect, address 1
    Unable to handle kernel paging request at virtual address 6b6b6b6b
    printing eip:
    c0187949
    *pde = 00000000
    Oops: 0000 [#1]
    PREEMPT
    Modules linked in: ne2k_pci 8390 crc32 ohci1394 ieee1394 nls_iso8859_1 nls_cp850 vfat fat reiser4 reiserfs via_agp agpgart joydev dm_mod usbhid uhci_hcd usbcore rtc
    CPU: 0
    EIP: 0060:[<c0187949>] Not tainted VLI
    EFLAGS: 00010246 (2.6.9-rc4-mm1)
    EIP is at remove_proc_entry+0x29/0x140
    eax: 00000000 ebx: 6b6b6b6b ecx: ffffffff edx: cffdef58
    esi: cf3df97c edi: 6b6b6b6b ebp: cf98fea0 esp: cf98fe7c
    ds: 007b es: 007b ss: 0068
    Process rmmod (pid: 2016, threadinfo=cf98e000 task=cc9225f0)
    Stack: cfed3938 cf98fe90 c022da9d c03544f4 cffdef58 6b6b6b6b cf3659bc cf3df97c
    00000005 cf98fec8 c0137711 00000286 00000003 cf98e000 00000282 c037eb40
    cf3df97c cfed38f4 cfed3938 cf98feec d083d5ff d0842b4a d0821b74 cfed3990
    Call Trace:
    [<c0105e46>] show_stack+0xa6/0xb0
    [<c0105fbd>] show_registers+0x14d/0x1c0
    [<c01061a4>] die+0xe4/0x180
    [<c01168c1>] do_page_fault+0x4c1/0x631
    [<c0105a89>] error_code+0x2d/0x38
    [<c0137711>] free_irq+0xa1/0x110
    [<d083d5ff>] usb_hcd_pci_remove+0xaf/0x180 [usbcore]
    [<c01c42d6>] pci_device_remove+0x66/0x70
    [<c022ecb7>] device_release_driver+0x57/0x60
    [<c022ecd9>] driver_detach+0x19/0x30
    [<c022f17c>] bus_remove_driver+0x5c/0xa0
    [<c022f667>] driver_unregister+0x17/0x40
    [<c01c44ce>] pci_unregister_driver+0xe/0x20
    [<d0821a60>] uhci_hcd_cleanup+0x10/0x56 [uhci_hcd]
    [<c0131f07>] sys_delete_module+0x177/0x1a0
    [<c010502d>] sysenter_past_esp+0x52/0x71
    Code: 00 00 55 89 e5 83 ec 24 85 d2 89 5d f4 89 75 f8 89 7d fc 89 55 ec 89 45 f0 0f 84 96 00 00 00 8b 5d f0 31 c0 b9 ff ff ff ff 89 df <f2> ae f7 d1 49 8b 42 34 8d 7a 34 89 ce 85 c0 74 6e 8b 0f 89 da


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