FAQ: [#6192] Traps test may fail at Read of L1 instruction on bf538-ezkit(2010)

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[#6192] Traps test may fail at Read of L1 instruction on bf538-ezkit

Submitted By: Vivi Li

Open Date

2010-08-17 23:29:34     Close Date

2011-06-10 02:39:00

Priority:

Medium     Assignee:

Nobody

Status:

Closed     Fixed In Release:

N/A

Found In Release:

2010R1-RC5     Release:

Category:

N/A     Board:

EZKIT Lite

Processor:

BF538     Silicon Revision:

Is this bug repeatable?:

Yes     Resolution:

Out of Date

Uboot version or rev.:

    Toolchain version or rev.:

gcc4.3-2010_Aug_04

App binary format:

N/A     

Summary: Traps test may fail at Read of L1 instruction on bf538-ezkit

Details:

 

Traps test may fail at Read of L1 instruction on bf538-ezkit. It will make kernel auto reboot.

This bug happens some time after Aug 4th, 2010.

 

Bellow is the log:

--

Linux version 2.6.34.4-ADI-2010R1-pre-svn9082 (test@uclinux70-bf538) (gcc version 4.3.5 (ADI-trunk/svn-4747) ) #24 Mon Aug 16 230

register early platform devices

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      = 0x00001000-0x001151a0

  rodata    = 0x001151a0-0x001725fc

  bss       = 0x00173000-0x00183514

  data      = 0x00183514-0x00196000

    stack   = 0x00194000-0x00196000

  init      = 0x00196000-0x006d1000

  available = 0x006d1000-0x03f00000

  DMA Zone  = 0x03f00000-0x04000000

Hardware Trace Active and Enabled

Boot Mode: 0

Blackfin support (C) 2004-2010 Analog Devices, Inc.

Compiled for ADSP-BF538 Rev 0.4

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

  External memory: cacheable in instruction cache

Data Cache Enabled for CPU0

  External memory: cacheable (write-back) in data cache

Built 1 zonelists in Zone order, mobility grouping off.  Total pages: 16002

Kernel command line: root=/dev/mtdblock0 rw clkin_hz=25000000 earlyprintk=serial,uart0,57600 console=ttyBF0,57600 ip=10.100.4.50f

PID hash table entries: 256 (order: -2, 1024 bytes)

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

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

Memory available: 56964k/65536k RAM, (5356k init code, 1104k kernel code, 516k data, 1024k dma, 572k reserved)

Hierarchical RCU implementation.

NR_IRQS:119

Configuring Blackfin Priority Driven Interrupts

console [ttyBF0] enabled, bootconsole disabled

console [ttyBF0] enabled, bootconsole disabled

Calibrating delay loop... 1044.48 BogoMIPS (lpj=2088960)

Security Framework initialized

Mount-cache hash table entries: 512

Blackfin Scratchpad data SRAM: 4 KB

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

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

Blackfin L1 Instruction SRAM: 64 KB (51 KB free)

NET: Registered protocol family 16

Blackfin DMA Controller

ezkit_init(): registering device resources

bio: create slab <bio-0> at 0

bfin-spi bfin-spi.0: Blackfin on-chip SPI Controller Driver, Version 1.0, regs_base@ffc00500, dma channel@5

bfin-spi bfin-spi.1: Blackfin on-chip SPI Controller Driver, Version 1.0, regs_base@ffc02300, dma channel@14

bfin-spi bfin-spi.2: Blackfin on-chip SPI Controller Driver, Version 1.0, regs_base@ffc02400, dma channel@15

Switching to clocksource bfin_cs_cycles

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

UDP hash table entries: 256 (order: 0, 4096 bytes)

UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)

NET: Registered protocol family 1

msgmni has been set to 111

io scheduler noop registered

io scheduler cfq registered (default)

bfin-uart: Blackfin serial driver

bfin-uart.0: ttyBF0 at MMIO 0xffc00400 (irq = 21) is a BFIN-UART

bfin-uart.1: ttyBF1 at MMIO 0xffc02000 (irq = 48) is a BFIN-UART

bfin-uart.2: ttyBF2 at MMIO 0xffc02100 (irq = 50) is a BFIN-UART

brd: module loaded

smc91x.c: v1.1, sep 22 2004 by Nicolas Pitre <nico@fluxnic.net>

eth0: SMC91C11xFD (rev 2) at 20310300 IRQ 71 [nowait]

eth0: Ethernet addr: 00:e0:22:fe:bc:8b

ad7879 spi0.1: Failed to probe AD7879 Touchscreen (7a vs ffff)

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 2004-05-31 18:14:50 UTC (1086027290)

eth0: link down

IP-Config: Complete:

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

     host=bf538f-ezkit, domain=, nis-domain=(none),

     bootserver=10.100.4.174, rootserver=10.100.4.174, rootpath=

dma_alloc_init: dma_page @ 0x0272b000 - 256 pages at 0x03f00000

Freeing unused kernel memory: 5356k freed

eth0: link up, 100Mbps, full-duplex, lpa 0x41E1

                           _____________________________________

        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 v1.16.2 (2010-08-16 20:25:30 CST) hush - the humble shell

 

root:/>

root:/>

root:/> while [ 1 ]; do traps_test 85; done

 

Running test 85 for exception 0x3f: Read of L1 instruction

... PASS (test completed 1/1 times, as expected by signal 7: Bus error)

 

1/1 tests passed

 

Running test 85 for exception 0x3f: Read of L1 instruction

...

 

U-Boot 2009.11.1-svn2233 (ADI-2010R1-pre) (Feb 09 2010 - 18:02:42)

 

CPU:   ADSP bf538-0.4 (Detected Rev: 0.4) (bypass boot)

Board: ADI BF538F EZ-Kit Lite board

       Support: http://blackfin.uclinux.org/

Clock: VCO: 525 MHz, Core: 525 MHz, System: 131.250 MHz

RAM:   64 MB

Flash:  4 MB

In:    serial

Out:   serial

Err:   serial

KGDB:  [on serial] ready

Net:   SMC91111-0

Hit any key to stop autoboot:  0

bfin>

--

 

Follow-ups

 

--- Vivi Li                                                  2010-11-09 03:39:37

This bug happened during August. It seems OK recently.

 

--- Vivi Li                                                  2011-06-10 02:36:46

Out of date. Close it.

 

 

 

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File Name     File Type     File Size     Posted By

config.linux.traps    application/octet-stream    35726    Vivi Li

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