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SubjectRe: kobject_add failed with -EEXIST
* Jiri Slaby <> wrote:

> Does anybody have some clue, what's wrong with the attached module?
> Kernel complains when the module is insmoded second time
> (DRIVER_DEBUG enabled):

no idea, but I got the same error msg during boot with a monolithic (vanilla) when it comes to init of the sound hardware:


00:00.0 Host bridge: nVidia Corporation nForce3 250Gb Host Bridge
(rev a1)
00:01.0 ISA bridge: nVidia Corporation nForce3 250Gb LPC Bridge (rev
00:01.1 SMBus: nVidia Corporation nForce 250Gb PCI System Management
(rev a1)
00:02.0 USB Controller: nVidia Corporation CK8S USB Controller (rev
00:02.1 USB Controller: nVidia Corporation CK8S USB Controller (rev
00:02.2 USB Controller: nVidia Corporation nForce3 EHCI USB 2.0
Controller (rev a2)
00:05.0 Bridge: nVidia Corporation CK8S Ethernet Controller (rev a2)
00:06.0 Multimedia audio controller: nVidia Corporation nForce3 250Gb
AC'97 Audio Controller (rev a1)
00:08.0 IDE interface: nVidia Corporation CK8S Parallel ATA
Controller (v2.5) (rev a2)
00:0b.0 PCI bridge: nVidia Corporation nForce3 250Gb AGP Host to PCI
Bridge (rev a2)
00:0e.0 PCI bridge: nVidia Corporation nForce3 250Gb PCI-to-PCI
Bridge (rev a2)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8
[Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8
[Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8
[Athlon64/Opteron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8
[Athlon64/Opteron] Miscellaneous Control
02:06.0 PCI bridge: Hint Corp HB6 Universal PCI-PCI bridge
(non-transparent mode) (rev 15)
02:09.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL-8139/8139C/8139C+ (rev 10)
02:0a.0 Multimedia video controller: Brooktree Corporation Bt878
Video Capture (rev 11)
02:0a.1 Multimedia controller: Brooktree Corporation Bt878 Audio
Capture (rev 11)
03:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA
G400/G450 (rev 85)


Advanced Linux Sound Architecture Driver Version 1.0.12rc1 (Thu Jun
22 13:55:50 2006 UTC).
PCI: Enabling device 0000:02:0a.1 (0100 -> 0102)
ACPI: PCI Interrupt 0000:02:0a.1[A] -> Link [LNKA] -> GSI 19 (level,
low) -> IRQ 16
ACPI: PCI Interrupt Link [LAUI] enabled at IRQ 21
ACPI: PCI Interrupt 0000:00:06.0[A] -> Link [LAUI] -> GSI 21 (level,
low) -> IRQ 19
PCI: Setting latency timer of device 0000:00:06.0 to 64
intel8x0_measure_ac97_clock: measured 60000 usecs
intel8x0: clocking to 55563
kobject_add failed for audio with -EEXIST, don't try to register
things with the same name in the same directory.
[<c02bec1a>] kobject_add+0xf4/0xfa
[<c039604d>] class_device_add+0x9d/0x286
[<c03962bc>] class_device_create+0x76/0x8c
[<c049c701>] sound_insert_unit+0xbd/0xd2
[<c049c857>] register_sound_special_device+0xf8/0x100
[<c02c1583>] vsnprintf+0x459/0x49a
[<c04ae6cd>] snd_register_oss_device+0x107/0x15d
[<c04c1e7e>] register_oss_dsp+0x35/0x57
[<c02bf2d3>] kobject_uevent+0x348/0x350
[<c04c1eca>] snd_pcm_oss_register_minor+0x2a/0xbe
[<c04afa84>] snd_timer_dev_register+0xbe/0xc3
[<c04ae1fb>] snd_device_register+0x32/0x53
[<c04b91e1>] snd_pcm_timer_init+0xa9/0xdc
[<c04b20a4>] snd_pcm_dev_register+0xf0/0x151
[<c04b20ed>] snd_pcm_dev_register+0x139/0x151
[<c04ae24a>] snd_device_register_all+0x2e/0x42
[<c04ab5a6>] snd_card_register+0x9/0xaa
[<c04c7dc4>] snd_intel8x0_probe+0x14e/0x171
[<c0395455>] __driver_attach+0x0/0x59
[<c02cc923>] pci_call_probe+0xa/0xc
[<c02cc953>] __pci_device_probe+0x2e/0x3f
[<c02cc982>] pci_device_probe+0x1e/0x30
[<c03953b2>] driver_probe_device+0x44/0x95
[<c039548b>] __driver_attach+0x36/0x59
[<c0394b94>] bus_for_each_dev+0x35/0x59
[<c03954bf>] driver_attach+0x11/0x13
[<c0395455>] __driver_attach+0x0/0x59
[<c0394f81>] bus_add_driver+0x52/0x81
[<c02ccb07>] __pci_register_driver+0x37/0x47
[<c04b22b5>] snd_pcm_notify+0x8c/0x91
[<c077076b>] alsa_pcm_oss_init+0x61/0x6c
[<c07506e4>] do_initcalls+0x53/0xe4
[<c013e98b>] register_irq_proc+0x57/0x66
[<c0184e68>] proc_mkdir_mode+0x37/0x49
[<c0100295>] init+0x0/0x11f
[<c01002cc>] init+0x37/0x11f
[<c01012e1>] kernel_thread_helper+0x5/0xb
PM: Adding info for ac97:0-0:ALC850
ALSA device list:
#0: NVidia CK8S with ALC850 at 0xfebfb000, irq 19
#1: Brooktree Bt878 at 0xf57ff000, irq 16

gcc -v

Reading specs from /usr/lib/gcc/i486-slackware-linux/3.4.6/specs
Configured with: ../gcc-3.4.6/configure --prefix=/usr --enable-shared
--enable-threads=posix --enable-__cxa_atexit --disable-checking
--with-gnu-ld --verbose --target=i486-slackware-linux
Thread model: posix
gcc version 3.4.6

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