[#5371] Sometimes wake up from standby will crash in BF527-EZKIT with ssm2602

Submitted By: Vivi Li

Open Date

2009-07-17 07:04:04 Close Date

2009-07-28 23:11:43

Priority:

Medium High Assignee:

Cliff Cai

Status:

Closed Fixed In Release:

N/A

Found In Release:

N/A Release:

Category:

Drivers Board:

EZKIT Lite

Processor:

BF527 Silicon Revision:

Is this bug repeatable?:

Yes Resolution:

Not reproducible

Uboot version or rev.:

Toolchain version or rev.:

gcc4.1_2009r1-rc9

App binary format:

N/A

Summary: Sometimes wake up from standby will crash in BF527-EZKIT with ssm2602

Details:

Sometimes wake up from standby will crash in BF527-EZKIT with ssm2602.

Linux version 2.6.28.10-ADI-2009R1-svn7006 (test@uclinux60-bf527-std) (gcc version 4.1.2 (ADI svn)) #8 Thu Jul 16 00:47:35 CST 2009

bootconsole [early_shadow0] enabled

bootconsole [early_BFuart0] enabled

early printk enabled on early_BFuart0

Board Memory: 64MB

Kernel Managed Memory: 64MB

Memory map:

fixedcode = 0x00000400-0x00000490

text = 0x00001000-0x0012bac0

rodata = 0x0012bac0-0x0018855c

bss = 0x00189000-0x0019a2a0

data = 0x0019a2a0-0x001ac000

stack = 0x001aa000-0x001ac000

init = 0x001ac000-0x0093e000

available = 0x0093e000-0x03eff000

DMA Zone = 0x03f00000-0x04000000

Hardware Trace Active and Enabled

Boot Mode: 9

Compiled for ADSP-BF527 Rev 0.0

Blackfin Linux support by http://blackfin.uclinux.org/

Processor Speed: 525 MHz core clock and 131 MHz System Clock

NOMPU: setting up cplb tables

Instruction Cache Enabled for CPU0

Data Cache Enabled for CPU0 (write-back)

Built 1 zonelists in Zone order, mobility grouping off. Total pages: 16001

Kernel command line: root=/dev/mtdblock0 rw earlyprintk=serial,uart0,57600 ip=10.100.4.50:10.100.4.174:10.100.4.174:255.255.255.0:bf527-ezkit:eth0:off

Configuring Blackfin Priority Driven Interrupts

PID hash table entries: 256 (order: 8, 1024 bytes)

console handover:boot [early_BFuart0] boot [early_shadow0] -> real [ttyBF0]

Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)

Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)

Memory available: 54476k/65536k RAM, (7752k init code, 1194k kernel code, 514k data, 1024k dma, 572k reserved)

Calibrating delay loop... 1046.52 BogoMIPS (lpj=2093056)

Security Framework initialized

Mount-cache hash table entries: 512

Blackfin Scratchpad data SRAM: 4 KB

Blackfin L1 Data A SRAM: 16 KB (15 KB free)

Blackfin L1 Data B SRAM: 16 KB (16 KB free)

Blackfin L1 Instruction SRAM: 48 KB (42 KB free)

net_namespace: 288 bytes

NET: Registered protocol family 16

Blackfin DMA Controller

ezkit_init(): registering device resources

SCSI subsystem initialized

NET: Registered protocol family 2

IP route cache hash table entries: 1024 (order: 0, 4096 bytes)

TCP established hash table entries: 2048 (order: 2, 16384 bytes)

TCP bind hash table entries: 2048 (order: 1, 8192 bytes)

TCP: Hash tables configured (established 2048 bind 2048)

TCP reno registered

NET: Registered protocol family 1

msgmni has been set to 106

io scheduler noop registered

io scheduler anticipatory registered (default)

io scheduler cfq registered

bfin-otp: initialized

Serial: Blackfin serial driver

bfin-uart.1: ttyBF0 at MMIO 0xffc02000 (irq = 31) is a BFIN-UART

brd: module loaded

bfin_mii_bus: probed

bfin_mac: attached PHY driver [Generic PHY] (mii_bus:phy_addr=0:01, irq=-1, mdc_clk=2500000Hz(mdc_div=25)@sclk=131MHz)

bfin_mac bfin_mac.0: Blackfin on-chip Ethernet MAC driver, Version 1.1

Driver 'sd' needs updating - please use bus_type methods

rtc-bfin rtc-bfin: rtc core: registered rtc-bfin as rtc0

bfin-wdt: initialized: timeout=20 sec (nowayout=0)

Advanced Linux Sound Architecture Driver Version 1.0.18rc3.

ALSA device list:

No soundcards found.

TCP cubic registered

NET: Registered protocol family 17

rtc-bfin rtc-bfin: setting system clock to 1970-01-01 12:31:30 UTC (45090)

IP-Config: Complete:

device=eth0, addr=10.100.4.50, mask=255.255.255.0, gw=10.100.4.174,

host=bf527-ezkit, domain=, nis-domain=(none),

bootserver=10.100.4.174, rootserver=10.100.4.174, rootpath=

Freeing unused kernel memory: 7752k freed

dma_alloc_init: dma_page @ 0x0093b000 - 256 pages at 0x03f00000

_____________________________________

a8888b. / Welcome to the uClinux distribution \

d888888b. / _ _ \

8P"YP"Y88 / | | |_| __ __ (TM) |

8|o||o|88 _____/ | | _ ____ _ _ \ \/ / |

8' .88 \ | | | | _ \| | | | \ / |

8`._.' Y8. \ | |__ | | | | | |_| | / \ |

d/ `8b. \ \____||_|_| |_|\____|/_/\_\ |

dP . Y8b. \ For embedded processors including |

d8:' " `::88b \ the Analog Devices Blackfin /

d8" 'Y88b \___________________________________/

:8P ' :888

8a. : _a88P For further information, check out:

._/"Yaa_: .| 88P| - http://blackfin.uclinux.org/

\ YP" `| 8P `. - http://docs.blackfin.uclinux.org/

/ \.___.d| .' - http://www.uclinux.org/

`--..__)8888P`._.' jgs/a:f - http://www.analog.com/blackfin

Have a lot of fun...

BusyBox v1.13.4 (2009-07-16 00:45:36 CST) built-in shell (msh)

Enter 'help' for a list of built-in commands.

root:/> versPHY: 0:01 - Link is Up - 100/Full

ion

kernel: Linux release 2.6.28.10-ADI-2009R1-svn7006, build #8 Thu Jul 16 00:47:35 CST 2009

toolchain: bfin-linux-uclibc-gcc release gcc version 4.1.2 (ADI svn)

user-dist: release svn-8498, build #139 Thu Jul 16 00:46:31 CST 2009

root:/>

root:/> modprobe i2c-bfin-twi; modprobe snd-ssm2602

i2c-bfin-twi i2c-bfin-twi.0: Blackfin BF5xx on-chip I2C TWI Contoller, regs_base@ffc01400

ASoC version 0.13.2

dma rx:3 tx:4, err irq:15, regs:ffc00800

ssm2602 Audio Codec 0.1<6>asoc: SSM2602 <-> bf5xx-i2s mapping ok

root:/> lsmod

Module Size Used by

snd_ssm2602 1292 0

snd_soc_ssm2602 8160 1 snd_ssm2602

snd_bf5xx_i2s 2668 1 snd_ssm2602

snd_soc_core 22060 2 snd_soc_ssm2602,snd_bf5xx_i2s

ac97_bus 832 1 snd_soc_core

snd_soc_bf5xx_i2s 2156 1 snd_ssm2602

snd_soc_bf5xx_sport 10480 3 snd_ssm2602,snd_bf5xx_i2s,snd_soc_bf5xx_i2s

i2c_bfin_twi 5248 0

root:/> vrec -w -S -b 16 -s 48000 -t 5|vplay

Recording WAVE : 16 bit, Speed 48000 Hz Stereo ...

Playing WAVE : 16 bit, Speed 48000 Hz Stereo ...

root:/> arecord -t wav -c 2 -f S16_LE -r 48000 -d 5 |aplay

Recording WAVE 'stdin' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo

Playing WAVE 'stdin' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo

root:/> cat /proc/mounts

rootfs / rootfs rw 0 0

proc /proc proc rw,nosuid,nodev,noexec 0 0

sysfs /sys sysfs rw,nosuid,nodev,noexec 0 0

mdev /dev tmpfs rw,nosuid 0 0

devpts /dev/pts devpts rw,nosuid,noexec,mode=600 0 0

var /var ramfs rw 0 0

tmp /tmp tmpfs rw,nosuid,nodev 0 0

debugfs /sys/kernel/debug debugfs rw 0 0

root:/> ls /sys/power

state

root:/>

Case 5 ...PASS

root:/> rtcwake -s 15 -m standby

wakeup from "standby" at Thu Jan 1 12:32:15 1970

PM: Syncing filesystems ... done.

Freezing user space processes ... (elapsed 0.00 seconds) done.

Freezing remaining freezable tasks ... (elapsed 0.00 seconds) done.

Suspending console(s) (use no_console_suspend to debug)

PHY: 0:01 - Link is Down

soc-audio soc-audio: scheduling resume work

soc-audio soc-audio: starting resume work

Restarting tasks ... done.

soc-audio soc-audio: resume work completed

NULL pointer access

Kernel OOPS in progress

Deferred Exception context

CURRENT PROCESS:

COMM=rtcwake PID=212

CPU = 0

invalid mm

return address: [0x00086c8a]; contents of:

0x00086c60: 0000 0000 acaa 0851 180a 0000 0000 0000

0x00086c70: 9110 4800 17d0 2fc5 9358 2fae ac6a 9110

0x00086c80: 4800 1832 0000 0000 0000 [ac91] 0c41 1807

0x00086c90: 9109 4801 1884 0000 0000 0000 ac50 0c40

ADSP-BF527-0.0 525(MHz CCLK) 131(MHz SCLK) (mpu off)

Linux version 2.6.28.10-ADI-2009R1-svn7006

Built with gcc version 4.1.2 (ADI svn)

SEQUENCER STATUS: Not tainted

SEQSTAT: 00062027 IPEND: 8030 SYSCFG: 0006

EXCAUSE : 0x27

interrupts disabled

physical IVG5 asserted : <0xffa00ba8> { _evt_ivhw + 0x0 }

physical IVG15 asserted : <0xffa00e00> { _evt_system_call + 0x0 }

logical irq 6 mapped : <0xffa00330> { _timer_interrupt + 0x0 }

logical irq 15 mapped : <0x00219708> { :snd_soc_bf5xx_sport:_sport_tx_start + 0x258 }

logical irq 21 mapped : <0x000b93a4> { _bfin_rtc_interrupt + 0x0 }

logical irq 23 mapped : <0x002183dc> { :snd_soc_bf5xx_sport:_sport_done + 0x104 }

logical irq 24 mapped : <0x0021836c> { :snd_soc_bf5xx_sport:_sport_done + 0x94 }

logical irq 27 mapped : <0x03ec000c> { :i2c_bfin_twi:_init_module + 0x325b26c }

logical irq 31 mapped : <0x0009c730> { _bfin_serial_dma_rx_int + 0x0 }

logical irq 32 mapped : <0x0009ca6c> { _bfin_serial_dma_tx_int + 0x0 }

logical irq 35 mapped : <0x000a56ec> { _bfin_mac_interrupt + 0x0 }

RETE: <0x00000000> /* Maybe null pointer? */

RETN: <0x00defe18> /* kernel dynamic memory */

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

RETS: <0x00086cf8> { _rb_erase + 0x198 }

PC : <0x00086c8a> { _rb_erase + 0x12a }

DCPLB_FAULT_ADDR: <0x00000008> /* Maybe null pointer? */

ICPLB_FAULT_ADDR: <0x00086c8a> { _rb_erase + 0x12a }

PROCESSOR STATE:

R0 : 0021ee98 R1 : 0021ee98 R2 : 00d66c38 R3 : 00000001

R4 : 00db1940 R5 : ffffffc0 R6 : ffffffc0 R7 : 00c9f060

P0 : 0021ebd8 P1 : 0021ee98 P2 : 00000000 P3 : 00194d58

P4 : 0021e6f8 P5 : 0021ebd8 FP : 00defe24 SP : 00defd3c

LB0: 001df7cf LT0: 001df7ce LC0: 00000000

LB1: 001dfa65 LT1: 001dfa1e LC1: 00000000

B0 : 00000000 L0 : 00000000 M0 : 00000000 I0 : 001f65b8

B1 : 00000000 L1 : 00000000 M1 : 00000000 I1 : 00000000

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

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

A0.w: 00000a3d A0.x: 00000000 A1.w: 00000a3d A1.x: 00000000

USP : 0023fd20 ASTAT: 02000000

Hardware Trace:

0 Target : <0x00004ce8> { _trap_c + 0x0 }

Source : <0xffa00604> { _exception_to_level5 + 0xa8 } CALL pcrel

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

Source : <0xffa00434> { _bfin_return_from_exception + 0x18 } RTX

2 Target : <0xffa0041c> { _bfin_return_from_exception + 0x0 }

Source : <0xffa004aa> { _ex_trap_c + 0x46 } JUMP.S

3 Target : <0xffa00464> { _ex_trap_c + 0x0 }

Source : <0xffa006d0> { _trap + 0x58 } JUMP (P4)

4 Target : <0xffa00678> { _trap + 0x0 }

Source : <0x00086cfa> { _rb_erase + 0x19a } JUMP.S

5 Target : <0x00086cf8> { _rb_erase + 0x198 }

Source : <0x0008693a> { ___rb_rotate_left + 0x4e } RTS

6 Target : <0x0008690e> { ___rb_rotate_left + 0x22 }

Source : <0x00086900> { ___rb_rotate_left + 0x14 } IF !CC JUMP

7 Target : <0x000868ec> { ___rb_rotate_left + 0x0 }

Source : <0x00086cf4> { _rb_erase + 0x194 } CALL pcrel

8 Target : <0x00086ce6> { _rb_erase + 0x186 }

Source : <0x00086c82> { _rb_erase + 0x122 } IF !CC JUMP

9 Target : <0x00086c7c> { _rb_erase + 0x11c }

Source : <0x00086c68> { _rb_erase + 0x108 } IF !CC JUMP

10 Target : <0x00086c58> { _rb_erase + 0xf8 }

Source : <0x00086c4a> { _rb_erase + 0xea } IF !CC JUMP

11 Target : <0x00086c48> { _rb_erase + 0xe8 }

Source : <0x00086bf4> { _rb_erase + 0x94 } IF !CC JUMP

12 Target : <0x00086bf2> { _rb_erase + 0x92 }

Source : <0x00086d9a> { _rb_erase + 0x23a } JUMP.S

13 Target : <0x00086d98> { _rb_erase + 0x238 }

Source : <0x00086d26> { _rb_erase + 0x1c6 } IF !CC JUMP

14 Target : <0x00086d1c> { _rb_erase + 0x1bc }

Source : <0x00086d0c> { _rb_erase + 0x1ac } IF !CC JUMP

15 Target : <0x00086cfc> { _rb_erase + 0x19c }

Source : <0x00086b70> { _rb_erase + 0x10 } IF !CC JUMP

Kernel Stack

Stack info:

SP: [0x00deff24] <0x00deff24> /* kernel dynamic memory */

Memory from 0x00deff20 to 00df0000

00deff20: 00000000 [001cc250] 00008000 00002000 00000000 00df0000 001cc250 001cc250

00deff40:<001f1788><ffa00e64> 02000021 001dfa65 001df7cf 001dfa1e 001df7ce 00000000

00deff60: 00000000 00000a3d 00000000 00000a3d 00000000 00000000 00000000 00000000

00deff80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

00deffa0: 00000000 00000000 00000000 00000000 001f65b8 0023fd20 0023fd2c 00db1940

00deffc0: 00df71c4 00db1940 00db0fa4 00000005 00000001 00db1354 00000001 00000000

00deffe0: 00db1940 00000003 00000000 00000000 00000000 00000000 00000001 00000006

00df0000: 00da3000

Return addresses in stack:

address : <0x001f1788> [ /lib/libc.so.0 + 0x31788 ]

address : <0xffa00e64> { _evt_system_call + 0x64 }

Modules linked in: snd_ssm2602 snd_soc_ssm2602 snd_bf5xx_i2s snd_soc_core ac97_bus snd_soc_bf5xx_i2s snd_soc_bf5xx_sport i2c_bfin_twi

Kernel panic - not syncing: Kernel exception

Follow-ups

--- Cliff Cai 2009-07-21 01:47:59

kernel crashes at _rb_erase(),this has nothing to do with audio stuff.

Cliff

--- Mike Frysinger 2009-07-21 01:52:25

a bug still exists somewhere

--- Vivi Li 2009-07-28 23:11:43

Not reproducible now.

Close it.

--- Robin Getz 2009-07-28 23:44:16

Something that mysteriously comes and goes - is still a problem.

Do we know _why_ it is not reproducible now? Did a checkin fix it?

--- Vivi Li 2009-07-29 03:40:08

Cliff just fixed a bug of power for ssm2602 in bf527-ezkit.

I also add a pull down resistor to SCKE on bf527-ezkit, that will make wake up

from mem stable.

So I close this bug after recent test.

--- Robin Getz 2009-07-29 08:42:01

Thanks - explaining what changes have been made - and why it causes the bug to

be fix is important.

not just "not reproducible".

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