2009-06-08 02:45:50     Data access CPIB miss

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2009-06-08 02:45:50     Data access CPIB miss

P SENTHIL KUMAR (INDIA)

Message: 75308   

 

Dear all,

 

I am using BF561 base custom board with 2008R1 release.

 

Actually we are trying to read a data from the AMS2 bank2, while reading the data from the AMS2, we are facing the below cplb issue.

 

Data access CPLB miss

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

Kernel OOPS in progress

Defered Exception context

CURRENT PROCESS:

COMM=swapper PID=1

invalid mm

return address: [0x001b3a8c]; contents of:

0x001b3a60:  0a08  9112  910b  9110  9310  9108  e181  ffc3

0x001b3a70:  5608  9308  0024  6001  200c  3229  3288  5aa9

0x001b3a80:  9950  e14a  2800  e10a  0000  0000 [9b10] 6409

0x001b3a90:  3040  0881  1ff3  e14a  ffc0  e10a  0a04  9312

 

SEQUENCER STATUS:               Not tainted

SEQSTAT: 0000c026  IPEND: 8030  SYSCFG: 0006

  HWERRCAUSE: 0x3

  EXCAUSE   : 0x26

  physical IVG15 asserted : <0x00106c9c> /* unknown address */

  logical irq   6 mapped  : <0xffa00114> /* unknown address */

  logical irq  30 mapped  : <0xffa03580> /* unknown address */

  logical irq  55 mapped  : <0x00194678> /* unknown address */

  logical irq  71 mapped  : <0x001a0f98> /* unknown address */

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

RETN: <0x003cf89c> /* unknown address */

RETX: <0x001b3a8c> /* unknown address */

RETS: <0x001abd32> /* unknown address */

PC  : <0x001b3a8c> /* unknown address */

DCPLB_FAULT_ADDR: <0x28000000> /* unknown address */

ICPLB_FAULT_ADDR: <0x001b3a8c> /* unknown address */

 

PROCESSOR STATE:

R0 : 00000015    R1 : 00000000    R2 : 7bb07bb0    R3 : 99b3ffc3

R4 : 00000000    R5 : 00000000    R6 : 00000000    R7 : 0000039f

P0 : 00000001    P1 : 003cfef0    P2 : 28000000    P3 : 03078000

P4 : 03078380    P5 : 00000000    FP : 00277994    SP : 003cf7c0

LB0: ffa00f18    LT0: ffa00f18    LC0: 00000000

LB1: 00000000    LT1: 00000000    LC1: 00000000

B0 : 00000000    L0 : 00000000    M0 : 00000000    I0 : 003cfef0

B1 : 00000000    L1 : 00000000    M1 : 00000000    I1 : 0027a1ac

B2 : 00000000    L2 : 00000000    M2 : 00000000    I2 : ffff8b36

B3 : 00000000    L3 : 00000000    M3 : 00000000    I3 : 00000000

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

USP : 00000000  ASTAT: 00000022

 

No trace since you do not have CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE enabled

 

Stack from 003cf7a0:

        00000000 ffa00560 00226614 00226614 00226610 00000000 00000000 00000000

        001b3a8c 00008030 0000c026 00000000 003cf89c 001b3a8c 001b3a8c 001abd32

        00000015 00000022 00000000 ffa00f18 00000000 ffa00f18 00000000 00000000

        00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

        00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

        00000000 ffff8b36 0027a1ac 003cfef0 00000000 00277994 00000000 03078380

 

Call Trace:

[<001b3044>][<001b3102>][<001a5fa4>][<001f7482>][<0018a39c>][<0028afae>][<0028bcda>][<0027c610>][<0027c57c>][<00100486>]<5>

Kernel panic - not syncing: Kernel exception

 

Let me know your suggestion to fix this issue in 2008R1

 

The same is working fine in 2008R1.5 release.

 

Thanks & Regards, Senthil

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2009-06-08 03:16:13     Re: Data access CPIB miss

Mike Frysinger (UNITED STATES)

Message: 75310   

 

sounds like it's already been fixed for 2008R1.5

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2009-06-08 03:35:26     Re: Data access CPIB miss

P SENTHIL KUMAR (INDIA)

Message: 75311   

 

Dear Mike,

 

Thanks for the reply.

 

Let me know, which file i have to replace to fix the issue in my 2008R1 release.

 

Regards,Senthil

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2009-06-08 07:34:57     Re: Data access CPIB miss

Robin Getz (UNITED STATES)

Message: 75327   

 

Senthil:

 

There were anomaly workarounds and many, many bug fixes that went into 2008R1.5 - in fact you should be using the tip of the branch, not the tar ball.

 

Upgrade.

 

Or - fix it yourself.

 

-Robin

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2009-06-08 07:45:35     Re: Data access CPIB miss

P SENTHIL KUMAR (INDIA)

Message: 75329   

 

Dear Robin,

 

Thanks for the reply and suggestion,

 

I had done the fix for the data access cplb miss and now its working fine.

 

Regards,Senthil

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