[#5271] insmod sound common layer modules will make system panic after linux-2.6.30 upgrade

Submitted By: Barry Song

Open Date

2009-06-18 04:16:17 Close Date

2009-09-14 05:02:39

Priority:

Medium Assignee:

Barry Song

Status:

Closed Fixed In Release:

N/A

Found In Release:

2010R1 Release:

Category:

N/A Board:

N/A

Processor:

BF537 Silicon Revision:

Is this bug repeatable?:

Yes Resolution:

Out of Date

Uboot version or rev.:

Toolchain version or rev.:

2009R1_RC6

App binary format:

N/A

Summary: insmod sound common layer modules will make system panic after linux-2.6.30 upgrade

Details:

In trunk head, compiling sound common layer as modules, and insmod them after kernel boot-up, system will panic like:

root:/> modprobe snd-pcm

Data access misaligned address violation

- Attempted misaligned data memory or data cache access.

Kernel OOPS in progress

Deferred Exception context

CURRENT PROCESS:

COMM=modprobe PID=183

CPU = 0

TEXT = 0x00f00000-0x00f4dbec DATA = 0x00ec8bec-0x00ecc4b8

BSS = 0x00ecc4b8-0x00f80000 USER-STACK = 0x00f9fea0

return address: [0x000075cc]; contents of:

0x000075a0: 8608 c081 9801 c683 5180 c40b 8000 c08b

0x000075b0: 3800 640d 4e18 0a28 6c65 17b3 6000 2fdb

0x000075c0: 3049 5208 4fa8 4eb0 9708 2fe1 [9308] 2fdf

0x000075d0: 6ff1 3049 5208 c682 85f8 c682 0142 4fc0

ADSP-BF537-0.2 500(MHz CCLK) 125(MHz SCLK) (mpu off)

Linux version 2.6.30-ADI-2010R1-pre-svn6773 (root@roc-desktop) (gcc version 4.1.2 (ADI svn)) #288 Thu Jun 18 16:04:57 CST 2009

SEQUENCER STATUS: Not tainted

SEQSTAT: 00060024 IPEND: 8030 SYSCFG: 0006

EXCAUSE : 0x24

interrupts disabled

physical IVG5 asserted : <0xffa00b74> { _evt_ivhw + 0x0 }

physical IVG15 asserted : <0xffa00d48> { _evt_system_call + 0x0 }

logical irq 6 mapped : <0xffa00354> { _timer_interrupt + 0x0 }

logical irq 10 mapped : <0x000b4090> { _bfin_rtc_interrupt + 0x0 }

logical irq 18 mapped : <0x0009e3e8> { _bfin_serial_dma_rx_int + 0x0 }

logical irq 19 mapped : <0x0009e788> { _bfin_serial_dma_tx_int + 0x0 }

logical irq 24 mapped : <0x000a7c1c> { _bfin_mac_interrupt + 0x0 }

RETE: <0x(null)> /* Maybe null pointer? */

RETN: <0x00b23e48> /* kernel dynamic memory */

RETX: <0x00000480> /* Maybe fixed code section */

RETS: <0x0002c41e> { _load_module + 0x55a }

PC : <0x000075cc> { _apply_relocate_add + 0x104 }

DCPLB_FAULT_ADDR: <0x00fb67f8> /* kernel dynamic memory */

ICPLB_FAULT_ADDR: <0x000075cc> { _apply_relocate_add + 0x104 }

PROCESSOR STATE:

R0 : 00fb544e R1 : 00fb0000 R2 : 00000012 R3 : 0000001a

R4 : 030c90ec R5 : 00000000 R6 : 00fa70cc R7 : 00fb7dd4

P0 : 0000000f P1 : 00fb67fa P2 : 000075cc P3 : 00fa748c

P4 : 00fa7374 P5 : 00fae1b4 FP : 00fb7de0 SP : 00b23d6c

LB0: ffa01480 LT0: ffa01480 LC0: 00000000

LB1: 0008d328 LT1: 0008d328 LC1: 00000000

B0 : 00000000 L0 : 00000000 M0 : 00000000 I0 : 00b23da8

B1 : 00000000 L1 : 00000000 M1 : 00000000 I1 : 00fa89cc

B2 : 00000000 L2 : 00000000 M2 : 00000000 I2 : 00000000

B3 : 00000000 L3 : 00000000 M3 : 00000000 I3 : 00000000

A0.w: 00000008 A0.x: 00000000 A1.w: 00000008 A1.x: 00000000

USP : 00f9fb58 ASTAT: 02002020

Hardware Trace:

0 Target : <0x00004c64> { _trap_c + 0x0 }

Source : <0xffa005fa> { _exception_to_level5 + 0x9e } CALL pcrel

1 Target : <0xffa0055c> { _exception_to_level5 + 0x0 }

Source : <0xffa0042e> { _bfin_return_from_exception + 0xe } RTX

2 Target : <0xffa00420> { _bfin_return_from_exception + 0x0 }

Source : <0xffa004b6> { _ex_trap_c + 0x66 } JUMP.S

3 Target : <0xffa00450> { _ex_trap_c + 0x0 }

Source : <0xffa00694> { _trap + 0x38 } JUMP (P4)

4 Target : <0xffa0067a> { _trap + 0x1e }

Source : <0xffa00676> { _trap + 0x1a } IF !CC JUMP

5 Target : <0xffa0065c> { _trap + 0x0 }

Source : <0x00007560> { _apply_relocate_add + 0x98 } JUMP (P2)

6 Target : <0x000074c8> { _apply_relocate_add + 0x0 }

Source : <0x0002c41a> { _load_module + 0x556 } CALL pcrel

7 Target : <0x0002c40c> { _load_module + 0x548 }

Source : <0x0002c460> { _load_module + 0x59c } IF CC JUMP

8 Target : <0x0002c42e> { _load_module + 0x56a }

Source : <0x0002c458> { _load_module + 0x594 } IF CC JUMP

9 Target : <0x0002c42e> { _load_module + 0x56a }

Source : <0x0002c458> { _load_module + 0x594 } IF CC JUMP

10 Target : <0x0002c41e> { _load_module + 0x55a }

Source : <0x0000757a> { _apply_relocate_add + 0xb2 } RTS

11 Target : <0x00007574> { _apply_relocate_add + 0xac }

Source : <0x000075be> { _apply_relocate_add + 0xf6 } JUMP.S

12 Target : <0x0000758c> { _apply_relocate_add + 0xc4 }

Source : <0x000075ce> { _apply_relocate_add + 0x106 } JUMP.S

13 Target : <0x000075cc> { _apply_relocate_add + 0x104 }

Source : <0x00007560> { _apply_relocate_add + 0x98 } JUMP (P2)

14 Target : <0x00007520> { _apply_relocate_add + 0x58 }

Source : <0x000075ba> { _apply_relocate_add + 0xf2 } IF CC JUMP

15 Target : <0x0000758c> { _apply_relocate_add + 0xc4 }

Source : <0x000075ce> { _apply_relocate_add + 0x106 } JUMP.S

Kernel Stack

Stack info:

SP: [0x00b23d94] <0x00b23d94> /* kernel dynamic memory */

FP: (0x00b23eb8)

Memory from 0x00b23d90 to 00b24000

00b23d90: 02002020 [0008d328] ffa01480 0008d328 ffa01480 00000000 00000000 00000008

00b23db0: 00000000 00000008 00000000 00000000 00000000 00000000 00000000 00000000

00b23dd0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

00b23df0: 00000000 00fa89cc 00b23da8 00f9fb58 00fb7de0 00fae1b4 00fa7374 00fa748c

00b23e10: 000075cc <00fb67fa> 0000000f 00fb7dd4 00fa70cc 00000000 030c90ec 0000001a

00b23e30: 00000012 00fb0000 00fb544e 00fb544e 0000000f 00000006 <0002ad0a> 00fb7dd4

00b23e50: 00fb7dd4 00fa1e88 <0002c41e> 00fb7dd4 00fa74dc 00fa70cc 00000011 00000000

00b23e70: 00fa0000 001725d4 00000000 00000000 00000011 00fb7dd4 00fb7e84 035f3b50

00b23e90: 00fa74b4 00fa6ff0 001e38e0 00fa7f3c 00000018 00000019 00000000 0000000c

00b23eb0: 00fa734c 00000000 (00000000)<00f9fb64><0002c6c8> 0002c688 00000080 037a4f70

00b23ed0:<001f0004> 0000e3ac 030c90ec 00000000 07270e00 <00040246> 00b213a0 03177ee0

00b23ef0: ffffe000 <ffa007cc> 0002c688 00000000 ffffe000 00000000 <00f0a68a> 001b4776

00b23f10: 00e39c60 00179564 0000e3ac <00f0a68a> 00000000 00a0de40 00008000 00000000

00b23f30: 00000000 00b24000 00a0de40 00a0de40 <00f0a90e><ffa00dac> 02001025 00a757cb

00b23f50: 00a76351 00a757ca 00a76344 00000000 00000000 00000000 00000000 00000000

00b23f70: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

00b23f90: 00000000 037a44bc 037a44b4 030c9020 00000000 00000000 00000000 037a4f70

00b23fb0: 030c93bd 00f9fb58 <00f9fb64> 00eca060 030c90b8 037a4f70 00ecd3f8 00a0de30

00b23fd0: 00000080 030c90ec <001f0004> 00000000 <00f0a68a> 0000e3ac 030c90ec 0000e3ac

00b23ff0:<001f0004><001f0004> 00000080 00000006 732e646c

Return addresses in stack:

address : <0x00fb67fa> /* kernel dynamic memory */

address : <0x0002ad0a> { _setup_modinfo + 0x36 }

address : <0x0002c41e> { _load_module + 0x55a }

frame 1 : <0x00f9fb64> [ modprobe + 0x1fb64 ]

address : <0x0002c6c8> { _sys_init_module + 0x40 }

address : <0x001f0004> [ modprobe + 0x4 ]

address : <0x00040246> { _sys_close + 0x62 }

address : <0xffa007cc> { _system_call + 0x68 }

address : <0x00f0a68a> [ /bin/busybox + 0xa68a ]

address : <0x00f0a90e> [ /bin/busybox + 0xa90e ]

address : <0xffa00dac> { _evt_system_call + 0x64 }

address : <0x00f9fb64> [ modprobe + 0x1fb64 ]

address : <0x001f0004> [ modprobe + 0x4 ]

address : <0x00f0a68a> [ /bin/busybox + 0xa68a ]

address : <0x001f0004> [ modprobe + 0x4 ]

Modules linked in: soundcore snd_soc_bf5xx_sport

Kernel panic - not syncing: Kernel exception

But if compiling into kernel, there is no problem at the process of kernel boot-up. Before kernel upgrade to 2.6.30, sound command layer drivers can be loaded normally as modules.

Follow-ups

--- Barry Song 2009-09-14 05:02:39

The problem has disappeared in trunk head now after kernel upgrade:

root:/> uname -a

Linux blackfin 2.6.31-ADI-2010R1-pre-svn7314 #1004 Mon Sep 14 16:59:14 CST 2009

blackfin GNU/Linux

root:/> lsmod

Module Size Used by

snd_soc_core 31048 0

snd_pcm 50228 1 snd_soc_core

snd_timer 14604 1 snd_pcm

snd_page_alloc 4428 1 snd_pcm

snd 34756 3 snd_soc_core,snd_pcm,snd_timer

Files

Changes

Commits

Dependencies

Duplicates

Associations