2009-09-17 13:02:56 Need help tracing error observed in bf537

Tapan Katwala (CANADA)

Message: 80087

Hello,

I am a new user of blackfin bf537 processor and working through some basic errors that I have observed while implementing programs on the board. The program dump is as follows as observed and then the board restarts:

root:/> PHY: 0:000000001 - Link is Up - 100/Full

Instruction fetch misaligned address violation

- Attempted misaligned instruction cache fetch. On a misaligned instruction fetch exception, the return address provided in RETX is the destination address which is misaligned, rather than the address of the offending instruction.

Deferred Exception context

CURRENT PROCESS:

COMM=amict PID=357

TEXT = 0x00000000340000-0x0000000034a574 DATA = 0x000000002f8574-0x000000002f930c

BSS = 0x000000002f930c-0x00000000360000 USER-STACK = 0x0000000037feb0

return address: [0x00000000353d1a]; contents of:

0x00000000353cf0: 0000 000000002012 00000000c0 0000 00000000200f 000000001a8 0000 00000000200c

0x00000000353d00: 00000000248 0000 000000002009 00000000128 0000 000000002006 0000000038 0000

0x00000000353d10: 000000002003 0000000030 0000 00000000915a 00000000a05b [0000000052] 0000 0000

0x00000000353d20: 0000 00000000e519 00000000fffe 00000000e51b 00000000ffff 0000000051 00000000e519 00000000fffc

Userspace Stack

Stack info:

SP: [0x000000002a] <0x000000002a> /* Maybe null pointer? */

Double Fault

Kernel OOPS in progress

Deferred Exception context

CURRENT PROCESS:

COMM=amict PID=357

TEXT = 0x00000000340000-0x0000000034a574 DATA = 0x000000002f8574-0x000000002f930c

BSS = 0x000000002f930c-0x00000000360000 USER-STACK = 0x0000000037feb0

return address: [0x000000003f42]; contents of:

0x000000003f20: 00000000e140 0000000014 00000000e431 0000000033 00000000e100 000000008918 000000003055 00000000e300

0x000000003f30: 0000000043e7 00000000e431 0000000033 000000006380 000000005581 00000000303e 0000000067e7 000000002020

0x000000003f40: 000000003216 [000000009110] 000000004800 00000000141a 0000000067f0 00000000e3ff 00000000ff89 000000004340

0x000000003f50: 00000000c00 000000001c14 00000000c07 000000003217 000000001403 000000002010 000000009152 00000000322f

Hardware Trace:

0 Target : <0x0000000043e8> { _trap_c + 0x0 }

Source : <0x00000000ffa006c8> { _exception_to_level5 + 0x000000009c } CALL pcrel

1 Target : <0x00000000ffa0062c> { _exception_to_level5 + 0x0 }

Source : <0x00000000ffa004b6> { _bfin_return_from_exception + 0x00000000e }

2 Target : <0x00000000ffa004a8> { _bfin_return_from_exception + 0x0 }

Source : <0x00000000ffa00580> { _ex_trap_c + 0x000000006c } JUMP.S

3 Target : <0x00000000ffa00514> { _ex_trap_c + 0x0 }

Source : <0x00000000ffa00750> { _trap + 0x0000000028 } JUMP (P4)

4 Target : <0x00000000ffa00728> { _trap + 0x0 }

Source : <0x00000000353d18> [ /lib/libpthread-0.9.29.so + 0x000000003d18 ]

5 Target : <0x00000000353d16> [ /lib/libpthread-0.9.29.so + 0x000000003d16 ]

Source : <0x00000000353c86> [ /lib/libpthread-0.9.29.so + 0x000000003c86 ] JUMP.S

6 Target : <0x00000000353c86> [ /lib/libpthread-0.9.29.so + 0x000000003c86 ]

Source : <0x00000000354004> [ /lib/libpthread-0.9.29.so + 0x000000004004 ] JUMP (P1)

7 Target : <0x00000000353ffc> [ /lib/libpthread-0.9.29.so + 0x000000003ffc ]

Source : <0x000000003550b4> [ /lib/libpthread-0.9.29.so + 0x0000000050b4 ] CALL pcrel

8 Target : <0x000000003550ac> [ /lib/libpthread-0.9.29.so + 0x0000000050ac ]

Source : <0x0000000018e15e> { _early_trap_c + 0x000000006 } JUMP (P1)

9 Target : <0x0000000018e14c> { _setup_early_printk + 0x00000000148 }

Source : <0x0000000018e072> { _setup_early_printk + 0x000000006e } RTS

10 Target : <0x0000000018e066> { _setup_early_printk + 0x0000000062 }

Source : <0x0000000018e02e> { _setup_early_printk + 0x000000002a } IF !CC JUMP

11 Target : <0x0000000018e01a> { _setup_early_printk + 0x0000000016 }

Source : <0x0000000018be1e> { _inflate_fixed + 0x00000000ee } RTS

12 Target : <0x0000000018be10> { _inflate_fixed + 0x00000000e0 }

Source : <0x0000000018c110> { _do_header + 0x0000000050 } JUMP.S

13 Target : <0x0000000018c10e> { _do_header + 0x000000004e }

Source : <0x0000000018bddc> { _inflate_fixed + 0x00000000ac } IF !CC JUMP

14 Target : <0x0000000018bd9a> { _inflate_fixed + 0x000000006a }

Source : <0x000000001893e2> { _huft_build + 0x000000002e } RTS

15 Target : <0x000000001893dc> { _huft_build + 0x0000000028 }

Source : <0x0000000018941c> { _huft_build + 0x0000000068 } IF CC JUMP

Stack info:

SP: [0x000000003163cc0] <0x000000003163cc0> /* kernel dynamic memory */

Memory from 0x000000003163cc0 to 000000003164000

000000003163cc0:[00000000ffa00626] 000000001c 000000003163cf0 00000000a059c <00000000c448> 00000000480 00000000480 0000000062027

000000003163ce0: 00000000 000000003163db0 000000003f42 000000003f42 <000000003f32> 00000000fffffff0 000000002002022 000000001de077

000000003163d00: 0000000018e181 000000001de076 0000000018e174 00000000 00000000 00000000 00000000 00000000

000000003163d20: 00000000 0000000043823c 000000001ffee21 0000000075308a9 000000001c 00000000 00000000 00000000

000000003163d40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000fffef543 00000000

000000003163d60: 000000001f9ba4 00000000316ac24 000000003163e54 000000003163dbc 00000000ffe02014 00000000378d3e8 0000000020 000000001f

000000003163d80: 00000000a 000000001c 0000000020 00000000100d 000000002f8b48 000000001728 000000001f 000000002a

000000003163da0: 00000000fffffff0 00000000fffffff0 00000000a 000000006 <00000000c962> 000000002a 000000003163dbc 000000003078303c

000000003163dc0: 0000000030303030 0000000032303030 000000002f203e61 00000000614d202a 0000000020656279 000000006c6c756e 00000000696f7020 000000007265746e

000000003163de0: 000000002f2a203f 000000002a9800 0000000035cb8c0 000000001 000000003163e7c 000000002a9800 00000000316ab9f 000000006

000000003163e00: 000000002001004 0000000035cb8c0 000000001 00000000316ac34 00000000316ac34 <00000000c70e> 000000003163f24 00000000ffe02014

000000003163e20: 00000000378d3e8 00000000353d30 00000000353d1a 00000000353d10 00000000 000000007fffffff 00000000164868 000000003163e50

000000003163e40: 00000000316ac34 <00000000c70e> 000000003163f24 00000000ffe02014 00000000378d3e8 00000000316ac34 <000000004714> 000000003163f24

000000003163e60: 00000000ffe02014 00000000378d3e8 000000002a 000000007 000000003 000000002f8b48 000000001 000000002a

000000003163e80: 000000001f 0000000035cb8c0 00000000 0000000030001 00000000 000000003163ec0 <000000008ebe> 0000000037dec48

000000003163ea0: 000000003163ec0 <000000008ebe> 0000000037dec48 000000001696c8 00000000390fe8 000000001 000000003163ee0 000000003163ee0

000000003163ec0: 000000003163edc <000000008f3c> 000000005664e0 0000000037de380

0000000037dec20 00000000566360 00000000ffffe000 000000003163ef8

000000003163ee0: 00000000ffa013f2 000000005664e0 00000000566360 000000003163ef0 00000000 00000000 00000000316ab58 00000000ffa008ba

000000003163f00: 000000003162000 <00000000ffa006cc> 00000000ffa00c2c 00000000316bcfe 00000000ffff 000000003c27fc 000000001 000000001

000000003163f20: 000000001ceaa0 00000000480 0000000030 000000006202a 00000000 000000003164000 00000000480 00000000353d1a

000000003163f40:<000000003550b8> 00000000 000000002003024 000000001de077 0000000018e181 000000001de076 0000000018e174 00000000

000000003163f60: 00000000 00000000 00000000 00000000 00000000 0000000043823c 000000001ffee21 0000000075308a9

000000003163f80: 000000001c 00000000 00000000 00000000 00000000 00000000 00000000 00000000

000000003163fa0: 00000000 000000003200e4 00000000 00000000 000000001f9ba4 00000000316ac24 00000000316ac34 000000003c2850

000000003163fc0: 00000000316ac68 00000000378d3e8 0000000061762f2f 00000000353c86 000000003906f4 00000000316bcfe 00000000316bd1c 000000003c27fc

000000003163fe0: 000000002f8b48 00000000742f2f72 00000000 00000000316ac33 00000000 00000000 000000003906f4 000000006

000000003164000: 0000000037de940

Return addresses in stack:

address : <0x00000000ffa00626> { _double_fault + 0x00000000a2 }

address : <0x00000000c448> { ___call_console_drivers + 0x0000000044 }

address : <0x000000003f32> { _show_stack + 0x000000006a }

address : <0x00000000c962> { _release_console_sem + 0x00000000176 }

address : <0x00000000c70e> { _printk + 0x0000000012 }

address : <0x000000004714> { _trap_c + 0x0000000032c }

address : <0x000000008ebe> { _set_next_entity + 0x0000000016 }

address : <0x000000008f3c> { _pick_next_task_fair + 0x0000000038 }

address : <0x00000000ffa006cc> { _exception_to_level5 + 0x00000000a0 }

address : <0x000000003550b8> [ /lib/libpthread-0.9.29.so + 0x0000000050b8 ]

Linux version 2.6.26.5-ADI-2009R1-pre-svn1414-dirty (tapan@tapan-desktop) (gcc version 4.1.2 (ADI svn)) #596 Thu Sep 17 13:48:45 ADT 2009

Warning: limiting memory to 56MB due to hardware anomaly 05000263

Board Memory: 64MB

Kernel Managed Memory: 64MB

Memory map:

fixedcode = 0x00000000400-0x00000000490

text = 0x000000001000-0x0000000011ad40

rodata = 0x0000000011ad40-0x00000000166ed4

bss = 0x00000000166ee0-0x00000000175e28

data = 0x00000000175e28-0x00000000188000

stack = 0x00000000186000-0x00000000188000

init = 0x00000000188000-0x00000000569000

available = 0x00000000569000-0x0000000037ff000

DMA Zone = 0x000000003f00000-0x000000004000000

Hardware Trace Active and Enabled

Recovering from Watchdog event

Compiled for ADSP-BF537 Rev 0.2

Blackfin Linux support by blackfin.uclinux.org/

Processor Speed: 500 MHz core clock and 100 MHz System Clock

NOMPU: setting up cplb tables for global access

Instruction Cache Enabled

Data Cache Enabled (write-through)

Built 1 zonelists in Zone order, mobility grouping off. Total pages: 14223

Kernel command line: root=/dev/mtdblock0 rw console=ttyBF0,9600

Configuring Blackfin Priority Driven Interrupts

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

console [ttyBF0] enabled

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

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

Memory available: 51220k/65536k RAM, (3972k init code, 1127k kernel code, 437k data, 1024k dma, 7756k reserved)

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 (41 KB free)

net_namespace: 192 bytes

NET: Registered protocol family 16

Blackfin GPIO Controller

Blackfin DMA Controller

stamp_init(): registering device resources

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 100

io scheduler noop registered

io scheduler anticipatory registered (default)

io scheduler cfq registered

simple-gpio: now handling 48 GPIOs: 0 - 47

Serial: Blackfin serial driver

bfin-uart.1: ttyBF0 at MMIO 0x00000000ffc00400 (irq = 18) is a BFIN-UART

bfin-uart.1: ttyBF1 at MMIO 0x00000000ffc02000 (irq = 20) is a BFIN-UART

brd: module loaded

bfin_mac_mdio: probed

bfin_mac: attached PHY driver [SMSC LAN83C185] (mii_bus:phy_addr=0:000000001, ir

q=-1, mdc_clk=2500000Hz(mdc_div=19)@sclk=100MHz)

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

physmap platform flash device: 00000000400000 at 0000000020000000

physmap-flash.0: Found 1 x16 devices at 0x0 in 16-bit bank

Amd/Fujitsu Extended Query Table at 0x0000000040

number of CFI chips: 1

cfi_cmdset_0002: Disabling erase-suspend-program due to code brokenness.

RedBoot partition parsing not available

Using physmap partition information

Creating 4 MTD partitions on "physmap-flash.0":

0x00000000-0x0000000040000 : "bootloader(nor)"

0x0000000040000-0x00000000120000 : "linux kernel(nor)"

0x00000000120000-0x000000003f0000 : "file system(nor)"

0x000000003f0000-0x00000000400000 : "MAC Address(nor)"

bfin-spi bfin-spi.0: Blackfin BF5xx on-chip SPI Controller Driver, Version 1.0,

regs_base@00000000ffc00500, dma channel@7

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

Advanced Linux Sound Architecture Driver Version 1.0.12rc1 (Thu Jun 22 13:55:50 2006 UTC).

dma_alloc_init: dma_page @ 0x000000007e0000 - 256 pages at 0x000000003f00000

ALSA device list:

#0: ADI ad1836 at PF1 SPORT1 rx/tx dma 5/6 err irq 46

TCP cubic registered

NET: Registered protocol family 17

RPC: Registered udp transport module.

RPC: Registered tcp transport module.

Freeing unused kernel memory: 3972k freed

/etc/Pie.config: cannot open