From: bugtrack@alsa-project.org
To: alsa-devel@alsa-project.org
Subject: [ALSA - driver 0001623]: Kernel oopsed when modprobing snd_mpu401 module
Date: Wed, 7 Dec 2005 15:31:47 +0100 [thread overview]
Message-ID: <69cdd25dcdeda24fb42a2fa81c44397b@bugtrack.alsa-project.org> (raw)
A NOTE has been added to this issue.
======================================================================
<https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1623>
======================================================================
Reported By: cartman
Assigned To:
======================================================================
Project: ALSA - driver
Issue ID: 1623
Category: GENERIC - mpu401
Reproducibility: always
Severity: major
Priority: normal
Status: new
Distribution: Pardus Linux
Kernel Version: 2.6.14
======================================================================
Date Submitted: 12-06-2005 19:50 CET
Last Modified: 12-07-2005 15:31 CET
======================================================================
Summary: Kernel oopsed when modprobing snd_mpu401 module
Description:
When I try to modprobe snd_mpu401 I get this:
Unable to handle kernel NULL pointer dereference at virtual address
00000000
printing eip:
00000000
*pde = 00000000
Oops: 0000 [#1]
PREEMPT
Modules linked in: snd_mpu401 snd_opl3_lib snd_hwdep snd_cs4231_lib
parport_pc
parport i2c_viapro i2c_core via_agp agpgart snd_seq_dummy snd_seq_oss
snd_seq_midi_event snd_seq snd_pcm_oss snd_mixer_oss snd_via82xx
snd_ac97_codec
snd_ac97_bus snd_pcm snd_timer snd_page_alloc snd_mpu401_uart snd_rawmidi
snd_seq_device snd sbp2 ohci1394 ieee1394 usb_storage uhci_hcd ohci_hcd
ehci_hcd
usbcore sata_sil sata_nv sata_mv sata_promise sata_sis sata_svw sata_via
sata_uli sata_vsc sata_sx4 sym53c8xx sg a100u2w scsi_transport_sas dc395x
tmscsim ahci BusLogic aacraid sr_mod 3w_xxxx lpfc qla1280 ipr st ch
megaraid
megaraid_mbox megaraid_mm megaraid_sas dmx3191d atp870u nsp32 aic7xxx
aic79xx
scsi_transport_spi osst qlogicfas408 ata_piix libata 3w_9xxx aha152x
qla6312
qla2200 qla2322 qla2100 qla2300 qla2xxx firmware_class scsi_transport_fc
sd_mod
scsi_mod
CPU: 0
EIP: 0060:[<00000000>] Not tainted VLI
EFLAGS: 00010286 (2.6.14.3-10)
EIP is at rest_init+0x3feffdc0/0x40
eax: ccbf3e00 ebx: 00000000 ecx: d244d1b4 edx: d244d1b4
esi: d244d1b4 edi: ccbf3e08 ebp: ccbf3e08 esp: cba15db8
ds: 007b es: 007b ss: 0068
Process modprobe (pid: 9771, threadinfo=cba14000 task=cee87a50)
Stack: d2442011 ccbf3e00 c03031ca ccbf3e08 00000000 cba15dec c0303230
c030323f
d244d1b4 ccbf3e08 c0302a5d d244d1b4 ccbf3e08 c04264f8 c04264f8
d244d20c
ccbf3eb2 ccbf3e08 c0426400 ccbf3e08 00000000 c030329b c0426400
00000000
Call Trace:
[<d2442011>] snd_platform_driver_probe+0x11/0x20 [snd]
[<c03031ca>] driver_probe_device+0x2a/0x90
[<c0303230>] __device_attach+0x0/0x20
[<c030323f>] __device_attach+0xf/0x20
[<c0302a5d>] bus_for_each_drv+0x4d/0x70
[<c030329b>] device_attach+0x4b/0x60
[<c0303230>] __device_attach+0x0/0x20
[<c0302b83>] bus_add_device+0x23/0x90
[<c0301cb6>] device_add+0xa6/0x120
[<c0301d41>] device_register+0x11/0x20
[<c0304889>] platform_device_register+0x119/0x170
[<d244386f>] snd_generic_device_register+0x4f/0x90 [snd]
[<d24438eb>] snd_card_set_generic_dev+0xb/0x30 [snd]
[<d25680e8>] snd_mpu401_create+0xe8/0x160 [snd_mpu401]
[<c02f1b07>] compare_pnp_id+0x77/0x90
[<d2568207>] snd_mpu401_pnp_probe+0x57/0x90 [snd_mpu401]
[<c02f1c85>] pnp_device_probe+0x75/0xa0
[<c03031ca>] driver_probe_device+0x2a/0x90
[<c03032b0>] __driver_attach+0x0/0x40
[<c03032eb>] __driver_attach+0x3b/0x40
[<c030294d>] bus_for_each_dev+0x4d/0x70
[<c0291102>] kobject_add+0x72/0xc0
[<c0303305>] driver_attach+0x15/0x20
[<c03032b0>] __driver_attach+0x0/0x40
[<c0302d9b>] bus_add_driver+0x5b/0xa0
[<c03036d4>] driver_register+0x34/0x40
[<c02f1d4f>] pnp_register_driver+0x2f/0x60
[<d231b14a>] alsa_card_mpu401_init+0x4a/0x92 [snd_mpu401]
[<c01388a2>] sys_init_module+0x122/0x1f0
[<c0102f2b>] sysenter_past_esp+0x54/0x79
Code: Bad EIP value.
======================================================================
----------------------------------------------------------------------
vsu - 12-07-05 13:41
----------------------------------------------------------------------
This problem happens with alsa-driver-1.0.10 on 2.6.x kernels <= 2.6.14
(which don't have platform_driver_register()). The problem is that
snd_platform_driver_probe() does not check for non-NULL drv->probe before
calling it, and platfor_driver_register() emulation code always sets
drv->driver.probe = snd_platform_driver_probe even if drv->probe is NULL.
I have attached a patch for alsa-driver-1.0.10 which should fix this.
----------------------------------------------------------------------
cartman - 12-07-05 15:31
----------------------------------------------------------------------
Thank you Sergey, your patch fixed this issue. Takashi can you please add
the patch to upstream CVS? Thanks.
Issue History
Date Modified Username Field Change
======================================================================
12-06-05 19:50 cartman New Issue
12-06-05 19:50 cartman Distribution => Pardus Linux
12-06-05 19:50 cartman Kernel Version => 2.6.14
12-06-05 19:57 tiwai Note Added: 0006932
12-06-05 20:05 cartman Note Added: 0006933
12-06-05 20:10 tiwai Note Added: 0006936
12-07-05 13:39 vsu File Added: 00_platform_device_compat.patch
12-07-05 13:41 vsu Note Added: 0006940
12-07-05 15:31 cartman Note Added: 0006942
======================================================================
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next reply other threads:[~2005-12-07 14:31 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-07 14:31 bugtrack [this message]
-- strict thread matches above, loose matches on Subject: below --
2005-12-07 15:16 [ALSA - driver 0001623]: Kernel oopsed when modprobing snd_mpu401 module bugtrack
2005-12-07 12:41 bugtrack
2005-12-06 19:10 bugtrack
2005-12-06 19:05 bugtrack
2005-12-06 18:57 bugtrack
2005-12-06 18:50 bugtrack
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