[#7218] run traps prefetch l1_instruction test make kernel panic

Submitted By: Mingquan Pan

Open Date

2012-07-31 03:39:52 Close Date

2012-08-15 04:50:00

Priority:

Medium Assignee:

Bob Liu

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.:

ADI-trunk/svn-5764

App binary format:

N/A

Summary: run traps prefetch l1_instruction test make kernel panic

Details:

run traps prefetch l1_instruction test make kernel panic now.

Running test 20 for exception 0x00: prefetch l1_instruction^M

... Double Fault^M

Kernel OOPS in progress^M

Deferred Exception context^M

CURRENT PROCESS:^M

COMM=traps_test PID=192 CPU=0^M

TEXT = 0x02ae0040-0x02ae9000 DATA = 0x02ae9020-0x02aec814^M

BSS = 0x02aec814-0x02aeccb0 USER-STACK = 0x02aedf48^M

return address: [0x0003853a]; contents of:^M

0x00038510: 600e 9851 4348 0c00 1ff2 0c06 1ffa 9a21 ^M

0x00038520: 2ff9 0000 04c3 e14c 0000 014f e10c 0000 ^M

0x00038530: 3018 3239 3402 0c44 1003 [0001] 2000 e14a ^M

0x00038540: 0000 e10a 0000 9153 6002 304b 5211 0e08 ^M

ADSP-BF537-0.2 500(MHz CCLK) 125(MHz SCLK) (mpu off)^M

Linux version 3.5.0-ADI-2012R1-pre-00797-g367b7b2 (test@uclinux55-bf537-cf) (gcc version 4.3.5 (ADI-trunk/svn-5764) ) #24 Sat Jul 28 20:13:32 CST 2012^M

SEQUENCER STATUS: Not tainted^M

SEQSTAT: 0000e021 IPEND: 0038 IMASK: 0000 SYSCFG: 0006^M

Global Interrupts Disabled (IPEND[4])^M

Peripheral interrupts masked off^M

Kernel interrupts masked off^M

EXCAUSE : 0x21^M

U-Boot 2011.09-dirty (ADI-2011R1) (Nov 20 2011 - 05:52:00)^M

CPU: ADSP bf537-0.2 (Detected Rev: 0.2) (bypass boot)^M

Board: ADI BF537 stamp board^M

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

Clock: VCO: 500 MHz, Core: 500 MHz, System: 125 MHz^M

RAM: 64 MiB^M

Flash: 4 MiB^M

MMC: ^M

In: serial^M

Out: serial^M

Err: serial^M

KGDB: [on serial] ready^M

Follow-ups

--- Bob Liu 2012-08-09 03:22:27

root:/> traps_test 20

Running test 20 for exception 0x00: prefetch l1_instruction

... FAIL (test exited sucessfully, and we expected 4 Illegal instruction

failure

FAIL (test completed properly 0/1 times)

0/1 tests passed

root:/>

--- Bob Liu 2012-08-13 02:24:02

fixed

--- Mingquan Pan 2012-08-15 05:48:41

Yes, it doesn't panic kernel now.Close.

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