[#5767] In 09r1.1 branch, all ltp test cases show stack overflow in bf561 SMP kernel

Submitted By: Vivi Li

Open Date

2009-12-11 01:51:58 Close Date

2009-12-13 22:38:56

Priority:

Medium High Assignee:

Graf Yang

Status:

Closed Fixed In Release:

N/A

Found In Release:

N/A Release:

Category:

N/A Board:

EZKIT Lite

Processor:

BF561 Silicon Revision:

Is this bug repeatable?:

Yes Resolution:

Rejected

Uboot version or rev.:

Toolchain version or rev.:

09r1.1-rc2

App binary format:

N/A

Summary: In 09r1.1 branch, all ltp test cases show stack overflow in bf561 SMP kernel

Details:

In 09r1.1 branch, all ltp test case will show stack overflow in bf561 SMP kernel.

BF561-EZKIT NON-SMP kernel is fine.

I changed stack size to 65535 and build ltp test case with following command. And it still failed.

bfin-uclinux-gcc -Wall -D__uClinux__ -Dlinux -DUCLINUX -mstack-check-l1 -I../../include -g -Wall -I../../../../include -Wall -Wl,-elf2flt="-s 65535" -static access01.c -L../../../../lib -lltp -o access01

root:/> access01

Application stack overflow

- Please increase the stack size of the application using elf2flt -s option,

and/or reduce the stack use of the application.

Deferred Exception context

CURRENT PROCESS:

COMM=access01 PID=146

CPU = 0

TEXT = 0x00280040-0x0028b020 DATA = 0x0028b040-0x0028dcf4

BSS = 0x0028dcf4-0x00292c30 USER-STACK = 0x002a2f80

return address: [0x00280150]; contents of:

0x00280130: e800 0003 e801 0000 0010 0000 305a e14a

0x00280140: ffb0 e10a 0000 9152 6dc2 08d6 1402 00a3

0x00280150: [3213] 0568 e800 0009 b178 b1b9 e14a 0028

0x00280160: e10a d988 9110 e14a 0028 e10a d944 9310

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

Linux version 2.6.28.10-ADI-2009R1.1-svn7942

Built with gcc version 4.1.2 (ADI svn)

SEQUENCER STATUS: Not tainted

SEQSTAT: 00062003 IPEND: 0030 SYSCFG: 0006

EXCAUSE : 0x3

interrupts disabled

physical IVG5 asserted : <0x0000a03c> { _evt_ivhw + 0x0 }

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

RETN: <0x00500000> /* kernel dynamic memory */

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

RETS: <0x002879dc> [ access01 + 0x799c ]

PC : <0x00280150> [ access01 + 0x110 ]

DCPLB_FAULT_ADDR: <0xffb00000> /* kernel dynamic memory */

ICPLB_FAULT_ADDR: <0x00280150> [ access01 + 0x110 ]

PROCESSOR STATE:

R0 : 00000001 R1 : 002a2f84 R2 : 002a2f8c R3 : 0028013c

R4 : 00000001 R5 : 0028afe4 R6 : 0028ec5c R7 : 00000000

P0 : 002a2ef9 P1 : 0028ec5c P2 : 746f6faa P3 : 002a2f84

P4 : 0028dcf0 P5 : 0028b040 FP : 002a2f40 SP : 004fff24

LB0: 00285d6d LT0: 00285d6c LC0: 00000000

LB1: 001921a5 LT1: 0019219e LC1: 00000000

B0 : 00000000 L0 : 00000000 M0 : 00000000 I0 : 002a2e99

B1 : 00000000 L1 : 00000000 M1 : 00000000 I1 : 0067e150

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 : 002a2f34 ASTAT: 02003025

Hardware Trace:

0 Target : <0x000052b8> { _trap_c + 0x0 }

Source : <0x000099f2> { _exception_to_level5 + 0xbe } CALL pcrel

1 Target : <0x000099b6> { _exception_to_level5 + 0x82 }

Source : <0x000099b2> { _exception_to_level5 + 0x7e } IF !CC JUMP

2 Target : <0x00009934> { _exception_to_level5 + 0x0 }

Source : <0x000097e0> { _bfin_return_from_exception + 0x18 } RTX

3 Target : <0x000097c8> { _bfin_return_from_exception + 0x0 }

Source : <0x0000988e> { _ex_trap_c + 0x7e } JUMP.S

4 Target : <0x0000984a> { _ex_trap_c + 0x3a }

Source : <0x00009846> { _ex_trap_c + 0x36 } IF !CC JUMP

5 Target : <0x00009810> { _ex_trap_c + 0x0 }

Source : <0x00009b18> { _trap + 0xb4 } JUMP (P4)

6 Target : <0x00009ad8> { _trap + 0x74 }

Source : <0x00009ad4> { _trap + 0x70 } IF !CC JUMP

7 Target : <0x00009ac0> { _trap + 0x5c }

Source : <0x00009abc> { _trap + 0x58 } IF !CC JUMP

8 Target : <0x00009aaa> { _trap + 0x46 }

Source : <0x00009aa4> { _trap + 0x40 } IF !CC JUMP

9 Target : <0x00009a9a> { _trap + 0x36 }

Source : <0x00009a88> { _trap + 0x24 } IF !CC JUMP

10 Target : <0x00009a64> { _trap + 0x0 }

Source : <0x0028014e> [ access01 + 0x10e ] EXCPT 0x3

11 Target : <0x0028013c> [ access01 + 0xfc ]

Source : <0x002879da> [ access01 + 0x799a ] CALL (P2)

12 Target : <0x002879d0> [ access01 + 0x7990 ]

Source : <0x002879c2> [ access01 + 0x7982 ] IF !CC JUMP

13 Target : <0x002879b2> [ access01 + 0x7972 ]

Source : <0x00284490> [ access01 + 0x4450 ] RTS

14 Target : <0x00284480> [ access01 + 0x4440 ]

Source : <0x002879b0> [ access01 + 0x7970 ] CALL (P2)

15 Target : <0x002879a0> [ access01 + 0x7960 ]

Source : <0x0028798c> [ access01 + 0x794c ] IF !CC JUMP

Userspace Stack

Stack info:

SP: [0x002a2f34] <0x002a2f34> [ access01 + 0x22f34 ]

FP: (0x002a2f2c)

Memory from 0x002a2f30 to 002a3000

002a2f30:<002879b2>[00000000] 00000000 00000000 00000000 <001a27dc> 0028b040 006fc004

002a2f50: 007003c0 00000000 007003a4 00700354 00000001 0028013c 00000000 00000000

002a2f70: 0028afe4 0028aff6 00000000 006fc783 00000001 002a2fa2 00000000 002a2fab

002a2f90: 002a2fb2 002a2fc0 002a2fe3 00000000 63610000 73736563 48003130 3d454d4f

002a2fb0: 4853002f 3d4c4c45 6e69622f 0068732f 48544150 69622f3d 752f3a6e 622f7273

002a2fd0: 2f3a6e69 6e696273 73752f3a 62732f72 54006e69 3d4d5245 756e696c 622f0078

002a2ff0: 612f6e69 73656363 00313073 00000000

Return addresses in stack:

address : <0x002879b2> [ access01 + 0x7972 ]

address : <0x001a27dc> [ sh + 0x227dc ]

SIGSEGV

root:/>

Follow-ups

--- Graf Yang 2009-12-11 05:18:50

Please remove -mstack-check-l1 from the ltp make file.

SMP not support stack check through L1 scratchpad.

--- Vivi Li 2009-12-13 22:38:56

The smp related patch is not applied after run_kernel_test is updated, so ltp

will fail.

Patch is applied and test scripts are modified.

So close it.

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