2009-04-05 08:18:40 Crash log analysis help

Hari Prasad (INDIA)

Message: 72174

Hi,

We are getting the following crash info when we run our application in 2008R1.5 kernel. We request someone to guide us in understanding the trace and help us catch the issue. Trace info is:

Data access misaligned address violation

- Attempted misaligned data memory or data cache access.

Defered Exception context

CURRENT PROCESS:

COMM=MyApp PID=100

TEXT = 0x03000000-0x03247498 DATA = 0x02000498-0x029634a0

BSS = 0x029634a0-0x03260000 USER-STACK = 0x0327fe60

return address: [0x00a2eb84]; contents of:

0x00a2eb60: 51fa 181d 0000 0000 ac51 0c41 1809 0000

0x00a2eb70: 0000 9109 3071 520e 6460 0803 1820 322a

0x00a2eb80: 0c40 5a95 [bc51] bc90 1818 bc42 0c41 1802

0x00a2eb90: bc8a 324a 9317 2fd3 6800 2fc4 0c40 1bfa

SEQUENCER STATUS: Tainted: P

SEQSTAT: 00000024 IPEND: 0030 SYSCFG: 0006

HWERRCAUSE: 0x0

EXCAUSE : 0x24

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

RETN: <0x02968000> [ MyApp + 0x0 ]

RETX: <0x00a2eb84> [ /lib/libuClibc-0.9.29.so + 0x2eb84 ]

RETS: <0x00a2e760> [ /lib/libuClibc-0.9.29.so + 0x2e760 ]

PC : <0x00a2eb84> [ /lib/libuClibc-0.9.29.so + 0x2eb84 ]

DCPLB_FAULT_ADDR: <0x0271b020> [ /MyApp + 0x962020 ]

ICPLB_FAULT_ADDR: <0x00a2eb84> [ /lib/libuClibc-0.9.29.so + 0x2eb84 ]

PROCESSOR STATE:

R0 : 0138fe38 R1 : 000001c8 R2 : 0138c211 R3 : 02718211

R4 : 02969bd8 R5 : 02969514 R6 : 0138fff4 R7 : 0138e231

P0 : 012b8ff4 P1 : 0138fff4 P2 : 0271b01d P3 : 02969510

P4 : 02970004 P5 : 0138c211 FP : 03e788f0 SP : 02967f24

LB0: 00a1efcd LT0: 00a1efcc LC0: 00000000

LB1: 031311fd LT1: 031311d4 LC1: 000003f6

B0 : 00000003 L0 : 00000000 M0 : 00000007 I0 : 02c5b24d

B1 : 000000df L1 : 00000000 M1 : 00000000 I1 : 00000000

B2 : 005c49e0 L2 : 00000000 M2 : 00000000 I2 : 00000000

B3 : 00000140 L3 : 00000000 M3 : 000000ff I3 : 03e77754

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

USP : 03e788f0 ASTAT: 02003004

Hardware Trace:

0 Target : <0x00183a14> { _trap_c + 0x0 }

Source : <0xffa00734> { _exception_to_level5 + 0xb4 }

1 Target : <0xffa00680> { _exception_to_level5 + 0x0 }

Source : <0xffa005d8> { _ex_trap_c + 0x5c }

2 Target : <0xffa0057c> { _ex_trap_c + 0x0 }

Source : <0xffa007d4> { _trap + 0x28 }

3 Target : <0xffa007ac> { _trap + 0x0 }

Source : <0x00a2eb82> [ /lib/libuClibc-0.9.29.so + 0x2eb82 ]

4 Target : <0x00a2eb4a> [ /lib/libuClibc-0.9.29.so + 0x2eb4a ]

Source : <0x00a2eb10> [ /lib/libuClibc-0.9.29.so + 0x2eb10 ]

5 Target : <0x00a2eb08> [ /lib/libuClibc-0.9.29.so + 0x2eb08 ]