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    SubjectRe: 2.6.3 oops at kobject_unregister, alsa & aic7xxx
    Alexander Nyberg <alexn@telia.com> wrote:
    >
    > This happens at shutdown when alsa is to close down. I'm running debian
    > sid. NOTE: I recently removed my aic7xxx out of the motherboard, so the
    > driver obviously can't find it. But if I remove aic7xxx from the modules
    > list, this oops does _not_ happen.

    That's useful infomation. It indicates that the aic7xxx driver is screwing
    up the kobject lists.

    Just to confirm: are you saying that the aic7xxx driver is loaded at the
    tie of the oops, but there is no aic7xxx hardware present in the machine?


    > I only had 2.6.3-rc1 available, and it behaved the same way.
    >
    > alex@testme:~$ cat /etc/modules
    > 3c59x
    > snd-emu10k1
    > aha152x io=0x340 irq=9 reconnect=1
    > sd_mod
    > aic7xxx
    > st
    >
    >
    > testme:~# Unable to handle kernel paging request at virtual address
    > e09e16dc
    > printing eip:
    > c01c0c43
    > *pde = 1fe87067
    > *pte = 00000000
    > Oops: 0002 [#1]
    > CPU: 0
    > EIP: 0060:[<c01c0c43>] Not tainted
    > EFLAGS: 00010246
    > EIP is at unlink+0x33/0x70
    > eax: e089c4f8 ebx: e089c4dc ecx: c02bfed8 edx: e09e16d8
    > esi: c02b7e20 edi: c02b2238 ebp: 00000000 esp: df7b7f1c
    > ds: 007b es: 007b ss: 0068
    > Process modprobe (pid: 445, threadinfo=df7b6000 task=de5c8720)
    > Stack: e089c4dc c02b7e20 c01c0f43 e089c4dc e089c4c4 c01eacce e089c4dc
    > e089c4c4
    > 00000080 c01eb0c3 e089c4c4 e089d040 c01c62e2 e089c4c4 e0895baf
    > e089c4a0
    > c012d609 e089d040 0804e320 0000003b 00000000 5f646e73 31756d65
    > 00316b30
    > Call Trace:
    > [<c01c0f43>] kobject_unregister+0x13/0x30
    > [<c01eacce>] bus_remove_driver+0x5e/0x80
    > [<c01eb0c3>] driver_unregister+0x13/0x28
    > [<c01c62e2>] pci_unregister_driver+0x12/0x20
    > [<e0895baf>] alsa_card_emu10k1_exit+0xf/0x35 [snd_emu10k1]
    > [<c012d609>] sys_delete_module+0x139/0x1b0
    > [<c013f1eb>] do_munmap+0x11b/0x150
    > [<c0108c9f>] syscall_call+0x7/0xb
    >
    > Code: 89 4a 04 89 11 89 40 04 89 43 1c 8b 43 28 8b 30 8d 4e 48 89
    >
    > alex@boxen:/home/devel/fixme$ dec.pl 89 4a 04 89 11 89 40 04 89 43 1c 8b
    > 43 28 8b 30 8d 4e 48 89
    > (gdb) disass dme
    > Dump of assembler code for function dme:
    > 0x08049470 <dme+0>: mov %ecx,0x4(%edx)
    > 0x08049473 <dme+3>: mov %edx,(%ecx)
    > 0x08049475 <dme+5>: mov %eax,0x4(%eax)
    > 0x08049478 <dme+8>: mov %eax,0x1c(%ebx)
    > 0x0804947b <dme+11>: mov 0x28(%ebx),%eax
    > 0x0804947e <dme+14>: mov (%eax),%esi
    > 0x08049480 <dme+16>: lea 0x48(%esi),%ecx
    > 0x08049483 <dme+19>: mov %eax,(%eax)
    > 0x08049485 <dme+21>: add %al,(%eax)
    > 0x08049487 <dme+23>: add %al,(%eax)
    > End of assembler dump.
    > (gdb) q
    >
    >
    >
    > alex@testme:~$ dmesg
    > Linux version 2.6.3 (alex@testme) (gcc version 3.3.3 20040125
    > (prerelease) (Debian)) #2 Thu Feb 19 23:37:37 CET 2004
    > BIOS-provided physical RAM map:
    > BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
    > BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
    > BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
    > BIOS-e820: 0000000000100000 - 000000001fff0000 (usable)
    > BIOS-e820: 000000001fff0000 - 000000001fff3000 (ACPI NVS)
    > BIOS-e820: 000000001fff3000 - 0000000020000000 (ACPI data)
    > BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved)
    > 511MB LOWMEM available.
    > On node 0 totalpages: 131056
    > DMA zone: 4096 pages, LIFO batch:1
    > Normal zone: 126960 pages, LIFO batch:16
    > HighMem zone: 0 pages, LIFO batch:1
    > DMI 2.3 present.
    > Built 1 zonelists
    > Kernel command line: root=/dev/hda2 console=tty0 console=ttyS0,19200
    > console=ttyS1,9600
    > Local APIC disabled by BIOS -- reenabling.
    > Found and enabled local APIC!
    > Initializing CPU#0
    > PID hash table entries: 2048 (order 11: 16384 bytes)
    > Detected 1400.299 MHz processor.
    > Using tsc for high-res timesource
    > Console: colour VGA+ 80x25
    > Memory: 515768k/524224k available (1494k kernel code, 7692k reserved,
    > 463k data, 388k init, 0k highmem)
    > Checking if this processor honours the WP bit even in supervisor mode...
    > Ok.
    > Calibrating delay loop... 2752.51 BogoMIPS
    > Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
    > Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
    > Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
    > CPU: After generic identify, caps: 0183fbff c1c7fbff 00000000
    > 00000000
    > CPU: After vendor identify, caps: 0183fbff c1c7fbff 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: 0183fbff c1c7fbff 00000000 00000020
    > Intel machine check architecture supported.
    > Intel machine check reporting enabled on CPU#0.
    > CPU: AMD Athlon(tm) processor stepping 04
    > Enabling fast FPU save and restore... done.
    > Checking 'hlt' instruction... OK.
    > POSIX conformance testing by UNIFIX
    > enabled ExtINT on CPU#0
    > ESR value before enabling vector: 00000000
    > ESR value after enabling vector: 00000000
    > Using local APIC timer interrupts.
    > calibrating APIC timer ...
    > ..... CPU clock speed is 1399.0810 MHz.
    > ..... host bus clock speed is 266.0630 MHz.
    > NET: Registered protocol family 16
    > EISA bus registered
    > PCI: PCI BIOS revision 2.10 entry at 0xfb4e0, last bus=1
    > PCI: Using configuration type 1
    > mtrr: v2.0 (20020519)
    > Linux Plug and Play Support v0.97 (c) Adam Belay
    > pnp: the driver 'system' has been registered
    > PCI: Probing PCI hardware
    > PCI: Probing PCI hardware (bus 00)
    > Disabling VIA memory write queue (PCI ID 0305, rev 03): [55] 89 & 1f ->
    > 09
    > PCI: Using IRQ router VIA [1106/0686] at 0000:00:07.0
    > spurious 8259A interrupt: IRQ7.
    > Machine check exception polling timer started.
    > Initializing Cryptographic API
    > Applying VIA southbridge workaround.
    > PCI: Disabling Via external APIC routing
    > Real Time Clock Driver v1.12
    > 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
    > pnp: the driver 'serial' has been registered
    > PCI: Found IRQ 11 for device 0000:00:0d.0
    > PCI: Sharing IRQ 11 with 0000:00:0f.0
    > 3c59x: Donald Becker and others. www.scyld.com/network/vortex.html
    > 0000:00:0d.0: 3Com PCI 3c905C Tornado at 0xdc00. Vers LK1.1.19
    > 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 0000:00:07.1
    > VP_IDE: chipset revision 6
    > VP_IDE: not 100% native mode: will probe irqs later
    > ide: Assuming 33MHz system bus speed for PIO modes; override with
    > idebus=xx
    > VP_IDE: VIA vt82c686b (rev 40) IDE UDMA100 controller on pci0000:00:07.1
    > ide0: BM-DMA at 0xd000-0xd007, BIOS settings: hda:DMA, hdb:DMA
    > ide1: BM-DMA at 0xd008-0xd00f, BIOS settings: hdc:pio, hdd:pio
    > hda: SAMSUNG SV2001H, ATA DISK drive
    > hdb: CD-ROM 52X/AKH, ATAPI CD/DVD-ROM drive
    > Using anticipatory io scheduler
    > ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
    > hda: max request size: 128KiB
    > hda: 39179952 sectors (20060 MB) w/2048KiB Cache, CHS=38869/16/63,
    > UDMA(100)
    > hda: hda1 hda2 hda3 hda4
    > mice: PS/2 mouse device common for all mice
    > serio: i8042 AUX port at 0x60,0x64 irq 12
    > input: ImPS/2 Logitech Wheel Mouse on isa0060/serio1
    > serio: i8042 KBD port at 0x60,0x64 irq 1
    > input: AT Translated Set 2 keyboard on isa0060/serio0
    > NET: Registered protocol family 2
    > IP: routing cache hash table of 4096 buckets, 32Kbytes
    > TCP: Hash tables configured (established 32768 bind 65536)
    > NET: Registered protocol family 1
    > NET: Registered protocol family 17
    > EXT3-fs: INFO: recovery required on readonly filesystem.
    > EXT3-fs: write access will be enabled during recovery.
    > kjournald starting. Commit interval 5 seconds
    > EXT3-fs: recovery complete.
    > EXT3-fs: mounted filesystem with ordered data mode.
    > VFS: Mounted root (ext3 filesystem) readonly.
    > Freeing unused kernel memory: 388k freed
    > Adding 488368k swap on /dev/hda3. Priority:-1 extents:1
    > EXT3 FS on hda2, internal journal
    > PCI: Found IRQ 11 for device 0000:00:0f.0
    > PCI: Sharing IRQ 11 with 0000:00:0d.0
    > SCSI subsystem initialized
    > aha152x: BIOS test: passed, 1 controller(s) configured
    > aha152x: resetting bus...
    > aha152x0: vital data: rev=1, io=0x340 (0x340/0x340), irq=9, scsiid=7,
    > reconnect=enabled, parity=enabled, synchronous=enabled, delay=1000,
    > extended translation=disabled
    > aha152x0: trying software interrupt, ok.
    > scsi0 : Adaptec 152x SCSI driver; $Revision: 2.7 $
    > st: Version 20040122, fixed bufsize 32768, s/g segs 256
    > nfs warning: mount version older than kernel
    >
    >
    >
    > alex@testme:~$ lspci -v
    > 00:00.0 Host bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133]
    > (rev 03)
    > Subsystem: ABIT Computer Corp. KT7/KT7-RAID/KT7A/KT7A-RAID
    > Mainboard
    > Flags: bus master, medium devsel, latency 8
    > Memory at d8000000 (32-bit, prefetchable) [size=64M]
    > Capabilities: <available only to root>
    >
    > 00:01.0 PCI bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133 AGP]
    > (prog-if 00 [Normal decode])
    > Flags: bus master, 66Mhz, medium devsel, latency 0
    > Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
    > Memory behind bridge: dc000000-ddffffff
    > Prefetchable memory behind bridge: d0000000-d7ffffff
    > Capabilities: <available only to root>
    >
    > 00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South]
    > (rev 40)
    > Subsystem: ABIT Computer Corp.: Unknown device 0000
    > Flags: bus master, stepping, medium devsel, latency 0
    > Capabilities: <available only to root>
    >
    > 00:07.1 IDE interface: VIA Technologies, Inc.
    > VT82C586A/B/VT82C686/A/B/VT8233/A/C/VT8235 PIPC Bus Master IDE (rev 06)
    > (prog-if 8a [Master SecP PriP])
    > Subsystem: VIA Technologies, Inc.
    > VT82C586/B/VT82C686/A/B/VT8233/A/C/VT8235 PIPC Bus Master IDE
    > Flags: bus master, medium devsel, latency 32
    > I/O ports at d000 [size=16]
    > Capabilities: <available only to root>
    >
    >
    > 00:07.2 USB Controller: VIA Technologies, Inc. USB (rev 16) (prog-if 00
    > [UHCI])
    > Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
    > Flags: bus master, medium devsel, latency 32, IRQ 11
    > I/O ports at d400 [size=32]
    > Capabilities: <available only to root>
    >
    > 00:07.3 USB Controller: VIA Technologies, Inc. USB (rev 16) (prog-if 00
    > [UHCI])
    > Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
    > Flags: bus master, medium devsel, latency 32, IRQ 11
    > I/O ports at d800 [size=32]
    > Capabilities: <available only to root>
    >
    > 00:07.4 Bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev
    > 40)
    > Subsystem: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI]
    > Flags: medium devsel, IRQ 11
    > Capabilities: <available only to root>
    >
    > 00:09.0 VGA compatible controller: Matrox Graphics, Inc. MGA 2064W
    > [Millennium] (rev 01) (prog-if 00 [VGA])
    > Flags: stepping, medium devsel, IRQ 5
    > Memory at de000000 (32-bit, non-prefetchable) [disabled]
    > [size=16K]
    > Memory at df000000 (32-bit, prefetchable) [disabled] [size=8M]
    > Expansion ROM at <unassigned> [disabled] [size=64K]
    >
    > 00:0d.0 Ethernet controller: 3Com Corporation 3c905C-TX/TX-M [Tornado]
    > (rev 74)
    > Subsystem: 3Com Corporation 3C905C-TX Fast Etherlink for PC
    > Management NIC
    > Flags: bus master, medium devsel, latency 32, IRQ 11
    > I/O ports at dc00 [size=128]
    > Memory at e1000000 (32-bit, non-prefetchable) [size=128]
    > Expansion ROM at <unassigned> [disabled] [size=128K]
    > Capabilities: <available only to root>
    >
    > 00:0f.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev
    > 0a)
    > Subsystem: Creative Labs: Unknown device 8066
    > Flags: bus master, medium devsel, latency 32, IRQ 11
    > I/O ports at e000 [size=32]
    > Capabilities: <available only to root>
    >
    > 00:0f.1 Input device controller: Creative Labs SB Live! MIDI/Game Port
    > (rev 0a)
    > Subsystem: Creative Labs Gameport Joystick
    > Flags: bus master, medium devsel, latency 32
    > I/O ports at e400 [size=8]
    > Capabilities: <available only to root>
    >
    > 01:00.0 VGA compatible controller: nVidia Corporation NV15 [GeForce2
    > GTS/Pro] (rev a3) (prog-if 00 [VGA])
    > Subsystem: LeadTek Research Inc. WinFast GeForce2 GTS with TV
    > output
    > Flags: bus master, VGA palette snoop, 66Mhz, medium devsel,
    > latency 32, IRQ 10
    > Memory at dc000000 (32-bit, non-prefetchable) [size=16M]
    > Memory at d0000000 (32-bit, prefetchable) [size=128M]
    > Expansion ROM at <unassigned> [disabled] [size=64K]
    > Capabilities: <available only to root>
    >
    >
    >
    >
    >
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