FAQ: [#6033] traps test case 93 will make kernel panic on bf526 when stack set to L1 instruction(2010)

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[#6033] traps test case 93 will make kernel panic on bf526 when stack set to L1 instruction

Submitted By: Vivi Li

Open Date

2010-05-18 06:12:17     Close Date

2011-06-08 03:45:42

Priority:

Medium     Assignee:

Sonic Zhang

Status:

Closed     Fixed In Release:

N/A

Found In Release:

2010R1-RC5     Release:

Category:

N/A     Board:

N/A

Processor:

BF526     Silicon Revision:

Is this bug repeatable?:

Yes     Resolution:

Not reproducible

Uboot version or rev.:

    Toolchain version or rev.:

gcc4.3-2010_Apr_07

App binary format:

N/A     

Summary: traps test case 93 will make kernel panic on bf526 when stack set to L1 instruction

Details:

 

traps test case 85 on bf526 will make kernel panic at Stack set to L1 instruction.

 

Last passed version:

--

kernel:    Linux release 2.6.33.3-ADI-2010R1-pre-svn8681, build #16 Tue May 4 00:46:31 CST 2010

toolchain: bfin-uclinux-gcc release gcc version 4.3.4 (ADI-trunk/svn-3951)

user-dist: release svn-9599, build #282 Tue May 4 00:45:49 CST 2010

--

 

First failed version:

--

kernel:    Linux release 2.6.33.3-ADI-2010R1-pre-svn8682, build #20 Wed May 5 04:41:41 CST 2010

toolchain: bfin-uclinux-gcc release gcc version 4.3.4 (ADI-trunk/svn-3951)

user-dist: release svn-9599, build #361 Wed May 5 04:41:00 CST 2010

--

 

--

Linux version 2.6.33.4-ADI-2010R1-pre-svn8711 (test@uclinux81-bf526) (gcc version 4.3.4 (ADI-trunk/svn-3951) ) #60 Mon May 17 19:00:57 CST 2010

register early platform devices

bootconsole [early_shadow0] enabled

bootconsole [early_BFuart1] enabled

early printk enabled on early_BFuart1

Board Memory: 64MB

Kernel Managed Memory: 64MB

Memory map:

  fixedcode = 0x00000400-0x00000490

  text      = 0x00001000-0x0013f780

  rodata    = 0x0013f780-0x001adae4

  bss       = 0x001ae000-0x001bedc0

  data      = 0x001bedc0-0x001d6000

    stack   = 0x001d4000-0x001d6000

  init      = 0x001d6000-0x00712000

  available = 0x00712000-0x03f00000

  DMA Zone  = 0x03f00000-0x04000000

Hardware Trace Active and Enabled

Boot Mode: 1

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

Compiled for ADSP-BF526 Rev 0.0

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

Processor Speed: 400 MHz core clock and 80 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 ip=10.100.4.50 earlyprintk=serial,uart1,57600 console=ttyBF1,57600 ip=10.100.4.50:10.100.4.174:10.100.4.174:255.255.255.0:bf526-ezbrd:eth0:off

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: 56704k/65536k RAM, (5360k init code, 1273k kernel code, 603k data, 1024k dma, 572k reserved)

Hierarchical RCU implementation.

NR_IRQS:159

Configuring Blackfin Priority Driven Interrupts

console [ttyBF1] enabled, bootconsole disabled

console [ttyBF1] enabled, bootconsole disabled

Calibrating delay loop... 796.67 BogoMIPS (lpj=1593344)

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: 48 KB (42 KB free)

NET: Registered protocol family 16

Blackfin DMA Controller

ezbrd_init(): registering device resources

bio: create slab <bio-0> at 0

SCSI subsystem initialized

usbcore: registered new interface driver usbfs

usbcore: registered new interface driver hub

usbcore: registered new device driver usb

musb_hdrc: version 6.0, musb-dma, host, debug=0

musb_hdrc: USB Host mode controller at ffc03800 using DMA, IRQ 59

musb_hdrc musb_hdrc.0: MUSB HDRC host driver

musb_hdrc musb_hdrc.0: new USB bus registered, assigned bus number 1

hub 1-0:1.0: USB hub found

hub 1-0:1.0: 1 port detected

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 110

io scheduler noop registered (default)

bfin-otp: initialized

bfin-uart: Blackfin serial driver

bfin-uart.1: ttyBF1 at MMIO 0xffc02000 (irq = 31) is a BFIN-UART

brd: module loaded

physmap platform flash device: 00400000 at 20000000

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

Intel/Sharp Extended Query Table at 0x0039

Intel/Sharp Extended Query Table at 0x0039

Intel/Sharp Extended Query Table at 0x0039

Intel/Sharp Extended Query Table at 0x0039

Intel/Sharp Extended Query Table at 0x0039

cfi_cmdset_0001: Erase suspend on write enabled

cmdlinepart partition parsing not available

RedBoot partition parsing not available

Using physmap partition information

Creating 3 MTD partitions on "physmap-flash.0":

0x000000000000-0x000000040000 : "bootloader(nor)"

0x000000040000-0x000000200000 : "linux kernel(nor)"

0x000000200000-0x000000400000 : "file system(nor)"

m25p80 spi0.1: sst25wf040 (512 Kbytes)

Creating 2 MTD partitions on "m25p80":

0x000000000000-0x000000040000 : "bootloader(spi)"

0x000000040000-0x000000080000 : "linux kernel(spi)"

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

bfin_mii_bus: probed

bfin_mac: attached PHY driver [Generic PHY] (mii_bus:phy_addr=0:01, irq=-1, mdc_clk=2500000Hz(mdc_div=15)@sclk=80MHz)

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

Initializing USB Mass Storage driver...

usbcore: registered new interface driver usb-storage

USB Mass Storage support registered.

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

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

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

usbcore: registered new interface driver usbhid

usbhid: USB HID core driver

TCP cubic registered

NET: Registered protocol family 17

rtc-bfin rtc-bfin: setting system clock to 2004-05-31 14:42:52 UTC (1086014572)

dma_alloc_init: dma_page @ 0x0270f000 - 256 pages at 0x03f00000

IP-Config: Complete:

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

     host=bf526-ezbrd, domain=, nis-domain=(none),

     bootserver=10.100.4.174, rootserver=10.100.4.174, rootpath=

Freeing unused kernel memory: 5360k freed

                           _____________________________________

        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 v1.16.1 (2010-05-17 15:52:23 CST) hush - the humble shell

 

root:/>

root:/> traps_test 85

 

Running test 85 for exception 0x3f: Stack set to L1 instruction

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

 

1/1 tests passed

root:/> traps_test 85

 

Running test 85 for exception 0x3f: Stack set to L1 instruction

... External Memory Addressing Error

Kernel OOPS in progress

HW Error context

CURRENT PROCESS:

COMM=traps_test PID=242  CPU=0

TEXT = 0x02990040-0x029988e0        DATA = 0x02998900-0x0299bf64

BSS = 0x0299bf64-0x0299c3f0  USER-STACK = 0x0299df40

 

return address: [0xffa00aae]; contents of:

0xffa00a80:  0160  0161  0162  0163  0170  0173  0171  0174

0xffa00a90:  0172  0175  0166  0140  0167  31c3  0140  017c

0xffa00aa0:  017d  017e  0179  0140  017b  6000  3620 [3628]

0xffa00ab0:  3630  3638  e108  203c  e148  ffe0  e109  0efc

Looks like this was a deferred error - sorry

It might be better to look around here :

-------------------------------------------

 

ADSP-BF526-0.0 400(MHz CCLK) 80(MHz SCLK) (mpu off)

Linux version 2.6.33.4-ADI-2010R1-pre-svn8711 (test@uclinux81-bf526) (gcc version 4.3.4 (ADI-trunk/svn-3951) ) #60 Mon May 17 190

 

SEQUENCER STATUS:               Not tainted

SEQSTAT: 0000c000  IPEND: 2990f4c  IMASK: 0000  SYSCFG: 0006

  Peripheral interrupts masked off

  Kernel interrupts masked off

  EXCAUSE   : 0x0

  physical IVG2 asserted : <0xffa00d18> { _evt_nmi + 0x0 }

  physical IVG3 asserted : <0xffa006c0> { _trap + 0x0 }

  physical IVG6 asserted : <0xffa00d1c> { _evt_timer + 0x0 }

  physical IVG8 asserted : <0xffa00d94> { _evt_evt8 + 0x0 }

  physical IVG9 asserted : <0xffa00dd0> { _evt_evt9 + 0x0 }

  physical IVG10 asserted : <0xffa00e0c> { _evt_evt10 + 0x0 }

  physical IVG11 asserted : <0xffa00e48> { _evt_evt11 + 0x0 }

  logical irq   6 mapped  : <0xffa00358> { _bfin_coretmr_interrupt + 0x0 }

  logical irq  21 mapped  : <0x000dfc98> { _bfin_rtc_interrupt + 0x0 }

  logical irq  27 mapped  : <0x000e1da8> { _bfin_twi_interrupt_entry + 0x0 }

  logical irq  31 mapped  : <0x000a2ef8> { _bfin_serial_dma_rx_int + 0x0 }

  logical irq  32 mapped  : <0x000a2c6c> { _bfin_serial_dma_tx_int + 0x0 }

  logical irq  35 mapped  : <0x000c3860> { _bfin_mac_interrupt + 0x0 }

  logical irq  59 mapped  : <0x000d80b8> { _blackfin_interrupt + 0x0 }

  logical irq  62 mapped  : <0x000db4a4> { _dma_controller_irq + 0x0 }

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

RETN: <0x0207a000> /* kernel dynamic memory (maybe user-space) */

RETX: <0x029919d8> /* kernel dynamic memory (maybe user-space) */

RETS: <0x029917f0> /* kernel dynamic memory (maybe user-space) */

PC  : <0x02990f4c> /* kernel dynamic memory (maybe user-space) */

PROCESSOR STATE:

R0 : 00000001    R1 : 00000055    R2 : 00000001    R3 : 00000100

R4 : 00000006    R5 : 00000001    R6 : 0299a6a0    R7 : 0299decc

P0 : 00000550    P1 : 02998a40    P2 : 02998a40    P3 : 00000001

P4 : 0299df44    P5 : 0299bd7c    FP : ffa10000    SP : 02079f24

LB0: 02991879    LT0: 0299186c    LC0: 00000000

LB1: 029827a5    LT1: 029827a4    LC1: 00000000

B0 : 00000000    L0 : 00000000    M0 : 00000004    I0 : 0299dc11

B1 : 00000000    L1 : 00000000    M1 : 00000000    I1 : 02998920

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

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

A0.w: 00000000   A0.x: 00000000   A1.w: 00000000   A1.x: 00000000

USP : ffa10000  ASTAT: 02003004

 

-------------------------------------------

 

ADSP-BF526-0.0 400(MHz CCLK) 80(MHz SCLK) (mpu off)

Linux version 2.6.33.4-ADI-2010R1-pre-svn8711 (test@uclinux81-bf526) (gcc version 4.3.4 (ADI-trunk/svn-3951) ) #60 Mon May 17 190

 

SEQUENCER STATUS:               Not tainted

SEQSTAT: 0000c03f  IPEND: 8030  IMASK: 0000  SYSCFG: 0006

  Global Interrupts Disabled (IPEND[4])

  Peripheral interrupts masked off

  Kernel interrupts masked off

  HWERRCAUSE: 0x3

  EXCAUSE   : 0x3f

  interrupts disabled

  physical IVG5 asserted : <0xffa00c0c> { _evt_ivhw + 0x0 }

  physical IVG15 asserted : <0xffa00a54> { _schedule_and_signal + 0x0 }

  logical irq   6 mapped  : <0xffa00358> { _bfin_coretmr_interrupt + 0x0 }

  logical irq  21 mapped  : <0x000dfc98> { _bfin_rtc_interrupt + 0x0 }

  logical irq  27 mapped  : <0x000e1da8> { _bfin_twi_interrupt_entry + 0x0 }

  logical irq  31 mapped  : <0x000a2ef8> { _bfin_serial_dma_rx_int + 0x0 }

  logical irq  32 mapped  : <0x000a2c6c> { _bfin_serial_dma_tx_int + 0x0 }

  logical irq  35 mapped  : <0x000c3860> { _bfin_mac_interrupt + 0x0 }

  logical irq  59 mapped  : <0x000d80b8> { _blackfin_interrupt + 0x0 }

  logical irq  62 mapped  : <0x000db4a4> { _dma_controller_irq + 0x0 }

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

RETN: <0x0207a000> /* kernel dynamic memory (maybe user-space) */

RETX: <0x029919d8> /* kernel dynamic memory (maybe user-space) */

RETS: <0x029917f0> /* kernel dynamic memory (maybe user-space) */

PC  : <0xffa00aae> { _schedule_and_signal + 0x5a }

PROCESSOR STATE:

R0 : 00000000    R1 : 00000055    R2 : 00000001    R3 : 00000100

R4 : 00000006    R5 : 00000001    R6 : 0299a6a0    R7 : 0299decc

P0 : 00000550    P1 : 02998a40    P2 : 02998a40    P3 : 00000001

P4 : 0299df44    P5 : 0299bd7c    FP : ffa10000    SP : 02079e48

LB0: 02991879    LT0: 0299186c    LC0: 00000000

LB1: 029827a5    LT1: 029827a4    LC1: 00000000

B0 : 00000000    L0 : 00000000    M0 : 00000004    I0 : 0299dc11

B1 : 00000000    L1 : 00000000    M1 : 00000000    I1 : 02998920

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

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

A0.w: 00000000   A0.x: 00000000   A1.w: 00000000   A1.x: 00000000

USP : ffa10000  ASTAT: 02003004

 

Hardware Trace:

   0 Target : <0x00003ef8> { _trap_c + 0x0 }

     Source : <0xffa00cb6> { _evt_ivhw + 0xaa } CALL pcrel

   1 Target : <0xffa00c98> { _evt_ivhw + 0x8c }

     Source : <0xffa00c8a> { _evt_ivhw + 0x7e } IF !CC JUMP pcrel

   2 Target : <0xffa00c0c> { _evt_ivhw + 0x0 }

      FAULT : <0xffa00aac> { _schedule_and_signal + 0x58 } 0x3620

   3 Target : <0xffa00a54> { _schedule_and_signal + 0x0 }

     Source : <0xffa00d14> { _evt_ivhw + 0x108 } RTI

   4 Target : <0xffa00cc0> { _evt_ivhw + 0xb4 }

     Source : <0xffa00996> { _ret_from_exception + 0x66 } RTS

   5 Target : <0xffa00930> { _ret_from_exception + 0x0 }

     Source : <0xffa00cbc> { _evt_ivhw + 0xb0 } JUMP.L

   6 Target : <0xffa00cba> { _evt_ivhw + 0xae }

     Source : <0x00004026> { _trap_c + 0x12e } RTS

Kernel Stack

Stack info:

SP: [0x02079dec] <0x02079dec> /* kernel dynamic memory (maybe user-space) */

Memory from 0x02079de0 to 0207a000

02079de0: 00044b83  00000000  0000e4dc [00000006] 00000007  ffa10000  0000003f  ffa10000

02079e00: 00019acc  028f9918  02045b64  02079e80  00000000  00000007  02990f60  02990f4c

02079e20: 00000000  ffa00cba  0299bd7c  0299decc  0299a6a0  00000001  00000006  00000007

02079e40: 02079e80  00000013  029919d8  00008030  0000c03f  00000000  0207a000  029919d8

02079e60: ffa00aae <029917f0> 00000000  02003004  029827a5  02991879  029827a4  0299186c

02079e80: 00000000  00000000  00000000  00000000  00000000  00000000  00000000  00000000

02079ea0: 00000000  00000000  00000000  00000000  00000000  00000000  00000000  00000000

02079ec0: 00000000  00000004  00000000  00000000  02998920  0299dc11  ffa10000  ffa10000

02079ee0: 0299bd7c  0299df44  00000001  02998a40  02998a40  00000550  0299decc  0299a6a0

02079f00: 00000001  00000006  00000100  00000001  00000055  00000000  00000000  00000550

02079f20: 00000006  02990f4c  02990f4c  0000c000  00000000  0207a000  029919d8  02990f4c

02079f40:<029917f0> 00000001  02003004  029827a5  02991879  029827a4  0299186c  00000000

02079f60: 00000000  00000000  00000000  00000000  00000000  00000000  00000000  00000000

02079f80: 00000000  00000000  00000000  00000000  00000000  00000000  00000000  00000000

02079fa0: 00000004  00000000  00000000  02998920  0299dc11  ffa10000  ffa10000  0299bd7c

02079fc0: 0299df44  00000001  02998a40  02998a40  00000550  0299decc  0299a6a0  00000001

02079fe0: 00000006  00000100  00000001  00000055  00000001  00000001  00000550  00000006

Return addresses in stack:

    address : <0x029917f0> /* kernel dynamic memory (maybe user-space) */

    address : <0x029917f0> /* kernel dynamic memory (maybe user-space) */

Modules linked in:

Kernel panic - not syncing: Kernel exception

Hardware Trace:

Stack info:

SP: [0x02079d64] <0x02079d64> /* kernel dynamic memory (maybe user-space) */

Memory from 0x02079d60 to 0207a000

02079d60: 00000013 [00174748] 0013df8e  02079e48  00174748  001b34be  001b34be  001b34be

02079d80: 02079d9c  00004334  02079e48  0299df44  00000001  0299decc  02079e48  0000ffff

02079da0: ffffffff  00006334  00010a20  00030002  ffffffff  6678303c  30316166  3e303030

02079dc0: 202a2f20  6e72656b  64206c65  6d616e79  6d206369  726f6d65  00000000  0001991c

02079de0: 00044b83  00000000  0000e4dc  00000006  00000007  ffa10000  0000003f  ffa10000

02079e00: 00019acc  028f9918  02045b64  02079e80  00000000  00000007  02990f60  02990f4c

02079e20: 00000000  ffa00cba  0299bd7c  0299decc  0299a6a0  00000001  00000006  00000007

02079e40: 02079e80  00000013  029919d8  00008030  0000c03f  00000000  0207a000  029919d8

02079e60: ffa00aae <029917f0> 00000000  02003004  029827a5  02991879  029827a4  0299186c

02079e80: 00000000  00000000  00000000  00000000  00000000  00000000  00000000  00000000

02079ea0: 00000000  00000000  00000000  00000000  00000000  00000000  00000000  00000000

02079ec0: 00000000  00000004  00000000  00000000  02998920  0299dc11  ffa10000  ffa10000

02079ee0: 0299bd7c  0299df44  00000001  02998a40  02998a40  00000550  0299decc  0299a6a0

02079f00: 00000001  00000006  00000100  00000001  00000055  00000000  00000000  00000550

02079f20: 00000006  02990f4c  02990f4c  0000c000  00000000  0207a000  029919d8  02990f4c

02079f40:<029917f0> 00000001  02003004  029827a5  02991879  029827a4  0299186c  00000000

02079f60: 00000000  00000000  00000000  00000000  00000000  00000000  00000000  00000000

02079f80: 00000000  00000000  00000000  00000000  00000000  00000000  00000000  00000000

02079fa0: 00000004  00000000  00000000  02998920  0299dc11  ffa10000  ffa10000  0299bd7c

02079fc0: 0299df44  00000001  02998a40  02998a40  00000550  0299decc  0299a6a0  00000001

02079fe0: 00000006  00000100  00000001  00000055  00000001  00000001  00000550  00000006

Return addresses in stack:

    address : <0x029917f0> /* kernel dynamic memory (maybe user-space) */

    address : <0x029917f0> /* kernel dynamic memory (maybe user-space) */

--

 

Follow-ups

 

--- Vivi Li                                                  2010-06-03 03:34:34

This test failed on May, 2/4/9/17/20, and not happened all the time.

Need to recheck from time to time.

 

--- Vivi Li                                                  2010-06-29 05:27:58

I see this bug again with following revision. Need to recheck from time to

time.

--

kernel:    Linux release 2.6.34-ADI-2010R1-pre-svn8929, build #160 Tue Jun 22

05:54:58 CST 2010

toolchain: bfin-uclinux-gcc release gcc version 4.3.4 (ADI-trunk/svn-3951)

user-dist: release svn-9683, build #3057 Tue Jun 22 05:54:16 CST 2010

--

 

--- Sonic Zhang                                              2010-07-13 02:49:10

Can't replicate on uClinux-dist svn 9723 and kernel svn 8985.

 

Running test 84 for exception 0x2e: Illegal use of supervisor resource -

Instruction

... PASS (test completed 1/1 times, as expected by signal 4: Illegal

instruction)

 

 

--- Vivi Li                                                  2010-07-22 03:09:42

85 test case at present is not the same one when I report this bug.

Now test 93 will make kernel panic.

 

--

root:/> traps_test 93

 

Running test 93 for exception 0x3f: Stack set to non-existant L1

... External Memory Addressing Error

Kernel OOPS in progress

HW Error context

CURRENT PROCESS:

COMM=traps_test PID=243  CPU=0

TEXT = 0x029a0040-0x029a88e0        DATA = 0x029a8900-0x029ac068

BSS = 0x029ac068-0x029ac4f0  USER-STACK = 0x029adf54

 

return address: [0xffa00b36]; contents of:

0xffa00b10:  0170  0173  0171  0174  0172  0175  0166  0140

0xffa00b20:  0167  31c3  0140  017c  017d  017e  0179  0140

0xffa00b30:  017b  6000  3620 [3628] 3630  3638  e108  203c

0xffa00b40:  e148  ffe0  e109  0f84  e149  ffa0  9341  0023

Looks like this was a deferred error - sorry

It might be better to look around here :

-------------------------------------------

 

ADSP-BF526-0.0 400(MHz CCLK) 80(MHz SCLK) (mpu off)

Linux version 2.6.34.1-ADI-2010R1-pre-svn8996 (test@uclinux81-bf526) (gcc

version 4.3.4 (ADI-trunk/svn-3951) ) #260 Thu Jul 22 00

 

SEQUENCER STATUS:               Not tainted

SEQSTAT: 0000c000  IPEND: 29a0f44  IMASK: 0000  SYSCFG: 0006

  Peripheral interrupts masked off

  Kernel interrupts masked off

  EXCAUSE   : 0x0

  physical IVG2 asserted : <0xffa00da0> { _evt_nmi + 0x0 }

  physical IVG6 asserted : <0xffa00da4> { _evt_timer + 0x0 }

  physical IVG8 asserted : <0xffa00e1c> { _evt_evt8 + 0x0 }

  physical IVG9 asserted : <0xffa00e58> { _evt_evt9 + 0x0 }

  physical IVG10 asserted : <0xffa00e94> { _evt_evt10 + 0x0 }

  physical IVG11 asserted : <0xffa00ed0> { _evt_evt11 + 0x0 }

  logical irq   6 mapped  : <0xffa00380> { _bfin_coretmr_interrupt + 0x0

}

  logical irq  21 mapped  : <0x000e0bb8> { _bfin_rtc_interrupt + 0x0 }

  logical irq  27 mapped  : <0x000e2cf0> { _bfin_twi_interrupt_entry +

0x0 }

  logical irq  31 mapped  : <0x000a3978> { _bfin_serial_dma_rx_int + 0x0

}

  logical irq  32 mapped  : <0x000a36ec> { _bfin_serial_dma_tx_int + 0x0

}

  logical irq  35 mapped  : <0x000c4470> { _bfin_mac_interrupt + 0x0 }

  logical irq  59 mapped  : <0x000d8d10> { _blackfin_interrupt + 0x0 }

  logical irq  62 mapped  : <0x000dc214> { _dma_controller_irq + 0x0 }

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

RETN: <0x0298a000> /* kernel dynamic memory (maybe user-space) */

RETX: <0x029a19d0> /* kernel dynamic memory (maybe user-space) */

RETS: <0x029a17e8> /* kernel dynamic memory (maybe user-space) */

PC  : <0x029a0f44> /* kernel dynamic memory (maybe user-space) */

PROCESSOR STATE:

R0 : 00000001    R1 : 0000005d    R2 : 00000001    R3 : 00000100

R4 : 00000006    R5 : 00000001    R6 : 029aa6a0    R7 : 029adee0

P0 : 000005d0    P1 : 029a8a38    P2 : 029a8a38    P3 : 00000001

P4 : 029adf58    P5 : 029abe80    FP : ffafff00    SP : 02989f24

LB0: 029a1871    LT0: 029a1864    LC0: 00000000

LB1: 0299279d    LT1: 0299279c    LC1: 00000000

B0 : 00000000    L0 : 00000000    M0 : 00000004    I0 : 029adc25

B1 : 00000000    L1 : 00000000    M1 : 00000000    I1 : 029a8920

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

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

A0.w: 00000000   A0.x: 00000000   A1.w: 00000000   A1.x: 00000000

USP : ffafff00  ASTAT: 02003004

(...)

--

 

--- Sonic Zhang                                              2010-08-17 04:02:08

Can't replicate on kernel rev. 9029 and bf526 v0.2 and v0.0.

 

Running test 93 for exception 0x3f: Stack set to non-existant L1

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

 

--- Vivi Li                                                  2011-04-29 02:28:28

I see this bug happen again on Jan and Feb in 2011 for 3 times.

 

--- Vivi Li                                                  2011-06-08 03:44:28

I don't see this bug for several months.

Can't replicate now. Close this bug.

 

 

 

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