[#4733] cat /proc/cpuinto on bf527-ezkit would make kernel panic

Submitted By: Mingquan Pan

Open Date

2008-12-19 05:48:24 Close Date

2008-12-21 22:33:29

Priority:

Medium Assignee:

Nobody

Status:

Closed Fixed In Release:

N/A

Found In Release:

N/A Release:

Category:

N/A Board:

N/A

Processor:

N/A Silicon Revision:

Is this bug repeatable?:

Yes Resolution:

Assigned (Not Start)

Uboot version or rev.:

Toolchain version or rev.:

Nov 11

App binary format:

N/A

Summary: cat /proc/cpuinto on bf527-ezkit would make kernel panic

Details:

cat /proc/cpuinto on bf527-ezkit would make kernel panic from about Dec 13.

the kernel config is default.

Loading .text @ 0x00001000 (1196256 bytes)

Loading .rodata @ 0x001250e0 (299708 bytes)

Loading .init.rodata @ 0x0016e39c (156 bytes)

Loading __ksymtab @ 0x0016e438 (16528 bytes)

Loading __ksymtab_gpl @ 0x001724c8 (5752 bytes)

Loading __ksymtab_strings @ 0x00173b40 (50054 bytes)

Loading __init_rodata @ 0x0017fec8 (172 bytes)

Loading __param @ 0x0017ff74 (640 bytes)

Clearing .bss @ 0x00180200 (61488 bytes)

Loading .data @ 0x0018f230 (69072 bytes)

Loading .init.text @ 0x001a0000 (101188 bytes)

Loading .init.data @ 0x001b8b44 (20716 bytes)

Loading .init.setup @ 0x001bdc30 (612 bytes)

Loading .initcall.init @ 0x001bde94 (656 bytes)

Loading .con_initcall.init @ 0x001be124 (4 bytes)

Loading .init.ramfs @ 0x001be128 (2743412 bytes)

Loading .text_l1 @ 0xffa00000 (5200 bytes)

sh_addr: FFA00000, p_paddr: 0045BD9C

Loading from: 0144D000 to 0045BD9C, size: 5200

Loading .data_l1 @ 0xff800000 (192 bytes)

sh_addr: FF800000, p_paddr: 0045D1EC

Loading from: 0144F000 to 0045D1EC, size: 192

## Starting application at 0x001ad500 ...

Linux version 2.6.28-rc2-ADI-2009R1-pre-svn5863 (test@uclinux60-bf527-std) (gcc version 4.1.2 (ADI svn)) #33 Sun Dec 14 03:03:45 CST 2008

console [early_BFuart0] enabled

early printk enabled on early_BFuart0

Board Memory: 64MB

Kernel Managed Memory: 64MB

Memory map:

fixedcode = 0x00000400-0x00000490

text = 0x00001000-0x001250e0

rodata = 0x001250e0-0x001801f4

bss = 0x00180200-0x0018f230

data = 0x0018f230-0x001a0000

stack = 0x0019e000-0x001a0000

init = 0x001a0000-0x0045e000

available = 0x0045e000-0x03eff000

DMA Zone = 0x03f00000-0x04000000

Hardware Trace Active and Enabled

Reset caused by Software reset

Compiled for ADSP-BF527 Rev 0.0

ERROR: Not running on ADSP-BF527: unknown CPUID 0x27e0 Rev 0.0

Blackfin Linux support by blackfin.uclinux.org/

Processor Speed: 525 MHz core clock and 131 MHz System Clock

NOMPU: setting up cplb tables

Instruction Cache Enabled for CPU0

Data Cache Enabled for CPU0 (write-through)

Built 1 zonelists in Zone order, mobility grouping off. Total pages: 16001

Kernel command line: root=/dev/mtdblock0 rw earlyprintk=serial,uart1,57600 console=tty0 console=ttyBF0,57600 ip=10.100.4.50:10.100.4.174:10.100.4.174:255.f

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: 59456k/65536k RAM, (2808k init code, 1168k kernel code, 492k data, 1024k dma, 584k reserved)

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 (15 KB free)

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

Blackfin L1 Instruction SRAM: 48 KB (42 KB free)

PDA for CPU0 reserved at 00181138

net_namespace: 288 bytes

NET: Registered protocol family 16

Blackfin GPIO Controller

Blackfin DMA Controller

stamp_init(): registering device resources

usbcore: registered new interface driver usbfs

usbcore: registered new interface driver hub

usbcore: registered new device driver usb

musb_hdrc: version 6.0, pio, host, debug=0

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

musb_hdrc musb_hdrc.0: MUSB HDRC host driver

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

usb usb1: configuration #1 chosen from 1 choice

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

NET: Registered protocol family 1

msgmni has been set to 116

io scheduler noop registered

io scheduler anticipatory registered (default)

io scheduler cfq registered

bfin-t350mcqb: 320x240 24-bit RGB FrameBuffer initializing...

dma_alloc_init: dma_page @ 0x03917000 - 256 pages at 0x03f00000

bfin-otp: initialized

Serial: Blackfin serial driver

bfin-uart.1: ttyBF0 at MMIO 0xffc02000 (irq = 31) is a BFIN-UART

brd: module loaded

bfin_mac_mdio: probed

bfin_mac: attached PHY driver [Generic PHY] (mii_bus:phy_addr=0:01, irq=-1, mdc_clk=2500000Hz(mdc_div=25)@sclk=131MHz)

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

m25p80 spi0.1: m25p16 (2048 Kbytes)

Creating 2 MTD partitions on "m25p80":

0x00000000-0x00040000 : "bootloader(spi)"

0x00040000-0x00200000 : "linux kernel(spi)"

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)

hid_tmff: Unknown symbol _input_ff_create_memless

usbcore: registered new interface driver usbhid

usbhid: v2.6:USB HID core driver

TCP cubic registered

NET: Registered protocol family 17

rtc-bfin rtc-bfin: setting system clock to 2004-06-01 00:37:56 UTC (1086050276)

IP-Config: Complete:

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

host=bf527-ezkit, domain=, nis-domain=(none),

bootserver=10.100.4.174, rootserver=10.100.4.174, rootpath=

Freeing unused kernel memory: 2808k 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| - 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 v1.13.1 (2008-12-14 01:03:44 CST) built-in shell (msh)

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

root:/> PHY: 0:01 - Link is Up - 100/Full

usb 1-1: new high speed USB device using musb_hdrc and address 2

usb 1-1: configuration #1 chosen from 1 choice

root:/>

root:/> ls

bin etc init mnt root sys usr

dev home lib proc sbin tmp var

root:/> cat /proc/cpuinfo

Data access CPLB miss

- Used by the MMU to signal a CPLB miss on a data access.

Kernel OOPS in progress

Deferred Exception context

CURRENT PROCESS:

COMM=cat PID=214

CPU = 0

TEXT = 0x00300040-0x00346b00 DATA = 0x00346b04-0x003587e4

BSS = 0x003587e4-0x0035a104 USER-STACK = 0x00362f78

return address: [0x0000202c]; contents of:

0x00002000: 5223 2ff6 3211 05e3 e800 0008 3238 9152

0x00002010: bdf2 e14a ffc0 e10a 0014 9110 4ee0 3218

0x00002020: 0c43 1411 e14a ef00 e10a 0014 [9510] 6081

0x00002030: 0808 1809 e122 2796 0810 e181 ffff 6008

SEQUENCER STATUS: Not tainted

SEQSTAT: 00062026 IPEND: 8030 SYSCFG: 0006

EXCAUSE : 0x26

physical IVG15 asserted : <0xffa00c44> { _evt_system_call + 0x0 }

logical irq 6 mapped : <0xffa0032c> { _timer_interrupt + 0x0 }

logical irq 13 mapped : <0x0009552c> { _bfin_t350mcqb_irq_error + 0x0 }

logical irq 21 mapped : <0x000c3fa0> { _bfin_rtc_interrupt + 0x0 }

logical irq 31 mapped : <0x000a0f28> { _bfin_serial_dma_rx_int + 0x0 }

logical irq 32 mapped : <0x000a1228> { _bfin_serial_dma_tx_int + 0x0 }

logical irq 35 mapped : <0x000a91e0> { _bfin_mac_interrupt + 0x0 }

logical irq 59 mapped : <0x000bdb80> { _blackfin_interrupt + 0x0 }

RETE: <0x00000000> { _do_one_initcall + 0xfffff000 }

RETN: <0x03ed5e14> /* kernel dynamic memory */

RETX: <0x00000480> /* Maybe fixed code section */

RETS: <0x000508f6> { _seq_read + 0x72 }

PC : <0x0000202c> { _show_cpuinfo + 0x28 }

DCPLB_FAULT_ADDR: <0xef000014> /* kernel dynamic memory */

ICPLB_FAULT_ADDR: <0x0000202c> { _show_cpuinfo + 0x28 }

PROCESSOR STATE:

R0 : 00000000 R1 : 03ed5e70 R2 : 00000000 R3 : 0000000b

R4 : 00000000 R5 : 03ed5e70 R6 : 00361e90 R7 : 03ed5e70

P0 : 03efb120 P1 : 00000000 P2 : ef000014 P3 : 00000000

P4 : 00001000 P5 : 001c1ba0 FP : 001c1ba0 SP : 03ed5d38

LB0: 0030c5cf LT0: 0030c5c6 LC0: 00000007

LB1: 0003ba6e LT1: 0003ba68 LC1: 00000000

B0 : 00000000 L0 : 00000000 M0 : 00000000 I0 : 00362fec

B1 : 00000000 L1 : 00000000 M1 : 00000000 I1 : 0034f7ac

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 : 00361e4c ASTAT: 02002021

No trace since you do not have CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE enabled

Kernel Stack

Stack info:

SP: [0x03ed5f24] <0x03ed5f24> /* kernel dynamic memory */

Memory from 0x03ed5f20 to 03ed6000

03ed5f20: 00000003 [00302122] 00008000 00002000 00000000 03ed6000 00302122 00302122

03ed5f40:<0031a5c8><ffa00ca8> 02003024 039922e1 0030c5cf 039922da 0030c5c6 00000000

03ed5f60: 00000007 00000000 00000000 00000000 00000000 00000000 00000000 00000000

03ed5f80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

03ed5fa0: 00000000 00000000 00000000 0034f7ac 00362fec 00361e4c 00361e58 00359768

03ed5fc0: 00000001 00000003 00359d0c ffffeff4 00000003 00001000 00361e90 00000003

03ed5fe0: 00000001 <00362fa2> 00001000 00361e90 00000003 00000003 00000003 00000006

03ed6000: 00005401

Return addresses in stack:

address : <0x0031a5c8> [ cat + 0x1a588 ]

address : <0xffa00ca8> { _evt_system_call + 0x64 }

address : <0x00362fa2> [ cat + 0x62fa2 ]

Modules linked in:

Kernel panic - not syncing: Kernel exception

Follow-ups

--- Mike Frysinger 2008-12-19 13:54:08

works fine on my bf527-ezkit ...

--- Mingquan Pan 2008-12-21 22:33:29

Yes, the trunk head kernel now is ok. Close.

--- Mingquan Pan 2008-12-22 02:33:30

But there is the line printed :

Compiled for ADSP-BF527 Rev 0.0

ERROR: Not running on ADSP-BF527: unknown CPUID 0x27e0 Rev 0.0

Is there something wrong?

--- Sonic Zhang 2008-12-22 23:29:13

Don't worry. This is a cpuid bug already filed by Bryan.

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