Bug#692324: [3.2.32->3.6.4 regression] powerpc: Oops and hang at boot: Unable to handle kernel paging request for data at address 0x0000000c
Daniel Kahn Gillmor wrote:
> This machine works fine booting the wheezy kernel (3.2.0-4-powerpc
> 3.2.32-1) via grub 2.00-7.
>
> However, when I tried booting this machine to the 3.6 kernel in
> experimental, via grub 2.00-7, the machine hung on boot and displayed
> the Oops and backtrace shown in the attached image (apologies for the
> low resolution of my webcam).
Quick inexact transcription:
| [info] Loading kernel module loop.
| [info] Loading kernel module snd-powermac.
| [ 17.51 237] i2c i2c-7: i2c-powermac: modalias failure on /wmi- 0f000000/i2c0f0001000/ 01c0
| [ 17.7 2150] i2c i2c-4: Failed to register i2c client request at 0x35 (-16)
| [ 17.73 ] unable to handle kernel paging request for data at address 0x0000000c
| [ 17.730292] Faulting instruction address: 0xf2cdeb10
| [ 17.734 61] Oops: kernel access of bad area, sig: 11 [01]
| [ 17.73 3 ] PowerMac
| [ 17.73 7 ] Modules linked in: snd_aoa_codec_tas snd_aoa i2c_powermac snd_powermac loop fireware_sbp2 snd_aoa_
| soundbus snd_pcm_oss snd_mixer_oss snd_pcm snd_page_alloc snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd
| _timer snd soundcore evdev ext3 mbcache jbd hid_generic usbhid hid md_mod sg sd_mod crc_t10dif sr_mod cdrom ohci
| rewire_ohci gen usbcore firewire_core crc_itu_t sungem_phy usb_common
| [ 17.73 651] NIP: f2cde630 LR: f2cd47b0 CTR: f2cdf70
| [ 17.736815] REGS: ef52ba60 TRAP: 0000 Not tainted (3.6-trunk-powerpc Debian 3.6.4-1~experimental.1)
| [ 17.7371 4] MSR: 00003032 <EE, E,IR,DR,RI> CR: 22002028 XER: 00000000
| [ 17.737 63] DAR: 0000003c, DSISR: 40000000
| [ 17.737589] TASK = ef9294f0[17] 'kworker/ :1' THREAD: ef52a000
| :
| :
| :
| :
| [ 17.735 29] RIP [f2cdeb10] tumbler_detect_headphone+0x4/0x20 [snd_powermac]
| [ 17.739452] LR [f2cdf7b0] device_change_handler+0x30/0x1d0 [snd_powermac]
| [ 17.733667] Call Trace:
| [ 17.7357 3] [ef92bf10] [006f0000] 0xbf0000 (unreliable)
| [ 17.739966] [ef92bf30] [c004f200] process_one_work+0x260/0x3ac
| [ 17.74016 ] [ef92bf60] [c004f2d4] worker_thread+0x2a0/0x5b4
| [ 17.740367] [ef92bfb0] [c00542b0] kthread+0x00/0x04
| [ 17.740 45] [ef92bff0] [c000 234] kernel_thread+0x4c/0x68
| [ 17.740731] instruction dump:
| [ 17.74 401] 7c0903ab 60630011 38c00000 4c000421 881f0006 5463fffe 39610010 7c630270
| [ 17.749103] 7c630034 5463d97e 4bffc5d4 00630374 <8003003c> 2f800000 419c000c 3863003c
| [ 17.757395] --[ end trace 7636e8c31427d89a ]---
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