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

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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 : <0x00000000c70e> { _printk + 0x0000000012 }

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

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

    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

Blackfin support (C) 2004-2008 Analog Devices, Inc.

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

cp: cannot stat '/var/tmp/Pie.config.tmp': No such file or directory

/etc/Pie.config: cannot open

cp: cannot stat '/var/tmp/Pie.config.tmp': No such file or directory

/etc/Pie.config: cannot open

cp: cannot stat '/var/tmp/Pie.config.tmp': No such file or directory

/etc/Pie.config: cannot open

cp: cannot stat '/var/tmp/Pie.config.tmp': No such file or directory

/etc/Pie.config: cannot open

cp: cannot stat '/var/tmp/Pie.config.tmp': No such file or directory

/etc/Pie.config: cannot open

/usr/bin/int2hex: missing or incorrect arguments

Try `int2hex --help' for more information

/etc/Pie.config: cannot open

/usr/bin/int2hex: missing or incorrect arguments

Try `int2hex --help' for more information

/etc/Pie.config: cannot open

/usr/bin/int2hex: missing or incorrect arguments

Try `int2hex --help' for more information

BusyBox v1.11.1 (2009-09-17 09:47:13 ADT) built-in shell (msh)

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

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

 

Please do help me trace the problem as to which part in the code caused this error and a pointer in the right direction would be really helpful, so I can learn ways to debug errors faced henceforth.

 

Thank you.

QuoteReplyEditDelete

 

 

2009-09-17 13:15:48     Re: Need help tracing error observed in bf537

Mike Frysinger (UNITED STATES)

Message: 80088   

 

have you read the documentation ?

  docs.blackfin.uclinux.org/doku.php?id=uclinux-dist:analyzing_traces

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2009-09-17 13:36:07     Re: Need help tracing error observed in bf537

Tapan Katwala (CANADA)

Message: 80091   

 

Acutally, I have reviewed the analyzing trace help page and it asked for a specific "ICPLB_FAULT_ADDR" variable to check in the dump.  I could not find that variable in my trace, so thought would ask if there could be any configuration setting that I am not aware of for the variable to show in my program dump.

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2009-09-17 13:41:54     Re: Need help tracing error observed in bf537

Mike Frysinger (UNITED STATES)

Message: 80092   

 

you're using an old/unreleased source tree (2.6.26.5-ADI-2009R1).  update to the actual release.

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2009-09-17 14:35:36     Re: Need help tracing error observed in bf537

Tapan Katwala (CANADA)

Message: 80097   

 

thank you for the information.  I'll do it accordingly and follow the analyzing trace manual.  just for my curiosity, based on the old release that I have, is there a way that I could get an idea of where to look in the dump to isolate the problem.

QuoteReplyEditDelete

 

 

2009-09-17 15:10:11     Re: Need help tracing error observed in bf537

Mike Frysinger (UNITED STATES)

Message: 80098   

 

the kernel crashed while dumping the trace, so probably not.  all you know is that your program "amict" is the thing causing the problem.

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