[#4988] run ./traps_test # sometimes wouldn't echo the new line on some BF537 and BF533 stamp boards

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[#4988] run ./traps_test # sometimes wouldn't echo the new line on some BF537 and BF533 stamp boards

Submitted By: Mingquan Pan

Open Date

2009-03-13 05:21:35     Close Date

2009-05-31 06:10:49

Priority:

Medium High     Assignee:

Graf Yang

Status:

Closed     Fixed In Release:

N/A

Found In Release:

N/A     Release:

Category:

N/A     Board:

N/A

Processor:

BF537     Silicon Revision:

Is this bug repeatable?:

Yes     Resolution:

Fixed

Uboot version or rev.:

    Toolchain version or rev.:

Jan 17 2009

App binary format:

N/A     

Summary: run ./traps_test # sometimes wouldn't echo the new line on some BF537 and BF533 stamp boards

Details:

 

run ./traps_test # sometimes wouldn't echo the new line on some BF537 and BF533 stamp boards.

 

bfin> bootm

## Booting image at 02000000 ...

   Image Name:   Linux-2.6.28.7-ADI-2009R1-pre-sv

   Created:      2009-03-09  23:12:27 UTC

   Image Type:   Blackfin Linux Kernel Image (gzip compressed)

   Data Size:    4089976 Bytes =  3.9 MB

   Load Address: 00001000

   Entry Point:  0018a3c4

   Verifying Checksum ... OK

   Uncompressing Kernel Image ... OK

Starting Kernel at = 18a3c4

Linux version 2.6.28.7-ADI-2009R1-pre-svn6161 (test@uclinux52-ad73311-lcd) (gcc version 4.1.2 (ADI svn)) #6 Tue Mar 10 07:12:13 CST 2009

console [early_BFuart0] enabled

early printk enabled on early_BFuart0

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

Board Memory: 64MB

Kernel Managed Memory: 64MB

Memory map:

  fixedcode = 0x00000400-0x00000490

  text      = 0x00001000-0x0010a5b0

  rodata    = 0x0010a5b0-0x0015c810

  bss       = 0x0015c810-0x0016b2c4

  data      = 0x0016b2c4-0x0017c000

    stack   = 0x0017a000-0x0017c000

  init      = 0x0017c000-0x007a7000

  available = 0x007a7000-0x037ff000

  DMA Zone  = 0x03f00000-0x04000000

Hardware Trace Active and Enabled

Boot Mode: 0

Blackfin support (C) 2004-2009 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

Instruction Cache Enabled for CPU0

Data Cache Enabled for CPU0 (write-back)

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

Kernel command line: root=/dev/mtdblock0 rw earlyprintk=serial,uart0,57600

Configuring Blackfin Priority Driven Interrupts

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

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

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

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

Memory available: 48924k/65536k RAM, (6316k init code, 1061k kernel code, 455k data, 1024k dma, 7756k reserved)

Calibrating delay loop... 997.37 BogoMIPS (lpj=1994752)

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)

PDA for CPU0 reserved at 0015d8f8

net_namespace: 288 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 95

io scheduler noop registered

io scheduler anticipatory registered (default)

io scheduler cfq registered

Serial: Blackfin serial driver

bfin-uart.1: ttyBF0 at MMIO 0xffc00400 (irq = 18) is a BFIN-UART

brd: module loaded

bfin_mii_bus: probed

bfin_mac: attached PHY driver [SMSC LAN83C185] (mii_bus:phy_addr=0:01, irq=-1, mdc_clk=2500000Hz(mdc_div=19)@sclk=100MHz)

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

bfin-spi bfin-spi.0: Blackfin on-chip SPI Controller Driver, Version 1.0, regs_base@ffc00500, dma channel@7

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

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

TCP cubic registered

NET: Registered protocol family 17

rtc-bfin rtc-bfin: setting system clock to 1970-02-26 01:46:25 UTC (4844785)

Freeing unused kernel memory: 6316k freed

dma_alloc_init: dma_page @ 0x007a3000 - 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|            -   blackfin.uclinux.org/

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

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

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

 

Have a lot of fun...

 

 

BusyBox v1.13.2 (2009-03-10 05:22:36 CST) built-in shell (msh)

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

 

root:/>

root:/>

root:/>

root:/> cd bin/

root:/bin>

root:/bin> ./traps_test #

21

root:/bin> ./traps_test #

root:/bin> ./traps_test #

21

root:/bin> ./traps_test #

root:/bin> ./traps_test #

21

root:/bin> ./traps_test #

21

root:/bin> ./traps_test #

21

root:/bin> ./traps_test #

21

root:/bin> ./traps_test #

root:/bin> ./traps_test #

21

root:/bin> ./traps_test #

21root:/bin>

root:/bin> ./traps_test #

21

root:/bin> ./traps_test #

21

root:/bin> ./traps_test #

21

root:/bin> ./traps_test #

 

 

On this specific bf537 board,

 

failed version: uclinux-dist:7856, linux:6161

passed version: uclinux-dist:7833, linux:6155

 

 

This uImage is attached.

 

Follow-ups

 

--- Graf Yang                                                2009-04-09 07:15:00

I can see this bug in your passed version: uclinux-dist:7833, linux:6155

So, it maybe exist for longer time.

 

--- Mike Frysinger                                           2009-04-09 07:20:57

are you actually running "traps_test #" ?  or just

"traps_test" ?

 

the code is pretty simple ... if this is broken, it sounds like everything is

screwed up ...

 

int main(int argc, char *argv[])

{

    if (argc == 1) {

        printf("%li\n", ARRAY_SIZE(bad_funcs) - 1);

        return EXIT_SUCCESS;

    }

.....

 

--- Graf Yang                                                2009-04-09 07:31:36

I do just tested "traps_test".

But I also tested "traps_test #", just now.

 

The same result.

 

--- Graf Yang                                                2009-04-15 03:44:26

Add a SSYNC() into bfin_serial_dma_tx_chars() to ensure DMA registers are

written with new data.

 

This bug is not related with traps_test, echo a char into /dev/ttyBF0 also can

reproduce this bug.

PIO mode is OK.

 

--- Mingquan Pan                                             2009-05-31 06:10:49

This issue is not seen now. So close.

 

 

 

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File Name     File Type     File Size     Posted By

uImage.traps    application/octet-stream    4089663    Mingquan Pan

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