[#7232] SMP bf561-ezkit kernel crash in change_cpufreq test

Submitted By: Vivi Li

Open Date

2012-08-09 03:10:24 Close Date

2012-08-23 04:18:31

Priority:

Medium Assignee:

steven miao

Status:

Closed Fixed In Release:

N/A

Found In Release:

N/A Release:

Category:

N/A Board:

N/A

Processor:

BF561 Silicon Revision:

Is this bug repeatable?:

Yes Resolution:

Fixed

Uboot version or rev.:

Toolchain version or rev.:

gcc4.3-2012_Feb_15

App binary format:

N/A

Summary: SMP bf561-ezkit kernel crash in change_cpufreq test

Details:

SMP bf561-ezkit kernel crash in change_cpufreq test after kernel upgrade to 3.5.0.

Linux version 3.5.0-ADI-2012R1-pre-00806-g8528770 (test@uclinux65-561-SMP) (gcc version 4.3.5 (ADI-trunk/svn-5764) ) #24 SMP Wed2

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 = 0x00001000-0x00150b78

rodata = 0x00150b80-0x00196e4c

bss = 0x00197000-0x001a8e44

data = 0x001a8e60-0x001be000

stack = 0x001bc000-0x001be000

init = 0x001be000-0x0077b000

available = 0x0077b000-0x03f00000

DMA Zone = 0x03f00000-0x04000000

Hardware Trace active and enabled

Boot Mode: 0

Compiled for ADSP-BF561 Rev 0.5

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

Processor Speed: 600 MHz core clock and 100 MHz System Clock

NOMPU: setting up cplb tables

Instruction Cache Enabled for CPU0

External memory: cacheable in instruction cache

L2 SRAM : uncacheable in instruction cache

Data Cache Enabled for CPU0

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

L2 SRAM : uncacheable in data cache

PERCPU: Embedded 7 pages/cpu @00800000 s5504 r8192 d14976 u32768

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

Kernel command line: root=/dev/mtdblock0 rw clkin_hz=30000000 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: 56212k/65536k RAM, (5876k init code, 1342k kernel code, 438k data, 1024k dma, 644k reserved)

Hierarchical RCU implementation.

NR_IRQS:153

Configuring Blackfin Priority Driven Interrupts

start_kernel(): bug: interrupts were enabled early

console [ttyBF0] enabled, bootconsole disabled

Calibrating delay loop... 1185.79 BogoMIPS (lpj=2371584)

pid_max: default: 32768 minimum: 301

Mount-cache hash table entries: 512

Booting Core B.

Brought up 2 CPUs

Instruction Cache Enabled for CPU1

External memory: cacheable in instruction cache

L2 SRAM : uncacheable in instruction cache

Data Cache Enabled for CPU1

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

L2 SRAM : uncacheable in data cache

SMP: Total of 2 processors activated (2371.58 BogoMIPS).

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: 16 KB (15 KB free)

Blackfin L2 SRAM: 128 KB (127 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: master is unqueued, this is deprecated

bfin-spi bfin-spi.0: Blackfin on-chip SPI Controller Driver, Version 1.0, regs@ffc00500, dma channel@16

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: 2, 16384 bytes)

TCP: Hash tables configured (established 2048 bind 2048)

TCP: reno registered

UDP hash table entries: 256 (order: 1, 8192 bytes)

UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)

NET: Registered protocol family 1

debug-mmrs: setting up Blackfin MMR debugfs

------------[ cut here ]------------

WARNING: at kernel/smp.c:461

Modules linked in:

ADSP-BF561-0.5 600(MHz CCLK) 100(MHz SCLK) (mpu off)

Linux version 3.5.0-ADI-2012R1-pre-00806-g8528770 (test@uclinux65-561-SMP) (gcc version 4.3.5 (ADI-trunk/svn-5764) ) #24 SMP Wed2

SEQUENCER STATUS: Not tainted

SEQSTAT: 0000c021 IPEND: 8008 IMASK: 003f SYSCFG: 0006

Peripheral interrupts masked off

Kernel interrupts masked off

EXCAUSE : 0x21

Double Fault

Kernel OOPS in progress

Deferred Exception context

CURRENT PROCESS:

COMM=swapper/0 PID=1 CPU=1

invalid mm

return address: [0x00043812]; contents of:

0x000437f0: 1ff2 0c06 1ffa 9a21 2ff9 0000 04c3 e14c

0x00043800: 0000 014f e10c 0000 3018 3239 3402 0c44

0x00043810: 1003 [0001] 2000 e14a 0000 e10a 0000 9153

0x00043820: 6002 304b 5211 0e08 180a 4e08 5010 3208

ADSP-BF561-0.5 600(MHz CCLK) 100(MHz SCLK) (mpu off)

Linux version 3.5.0-ADI-2012R1-pre-00806-g8528770 (test@uclinux65-561-SMP) (gcc version 4.3.5 (ADI-trunk/svn-5764) ) #24 SMP Wed2

SEQUENCER STATUS: Not tainted

SEQSTAT: 00060021 IPEND: 8028 IMASK: 003f SYSCFG: 0006

Peripheral interrupts masked off

Kernel interrupts masked off

EXCAUSE : 0x21

Follow-ups

--- steven miao 2012-08-16 02:25:38

shoud not disable irq in cpufreq

--- Mingquan Pan 2012-08-23 05:16:57

Yes, fixed.

Files

Changes

Commits

Dependencies

Duplicates

Associations

Partner Forums

Partner Libraries

[#7232] SMP bf561-ezkit kernel crash in change_cpufreq test