[#4654] Kernel panics upon boot - hits BUG_ON in arch/blackfin/kernel/cplb-nompu/cplbinit.c:428/generate_cplb_tables_cpu()

Submitted By: Thomas Langås

Open Date

2008-11-19 04:30:17 Close Date

2008-11-25 02:49:22

Priority:

Medium Assignee:

Mike Frysinger

Status:

Closed Fixed In Release:

N/A

Found In Release:

N/A Release:

Category:

Kernel Functions Board:

Custom

Processor:

BF561 Silicon Revision:

0.5

Is this bug repeatable?:

Yes Resolution:

Fixed

Uboot version or rev.:

1.1.6 Toolchain version or rev.:

SVN - 2008-08-13

App binary format:

N/A

Summary: Kernel panics upon boot - hits BUG_ON in arch/blackfin/kernel/cplb-nompu/cplbinit.c:428/generate_cplb_tables_cpu()

Details:

bfin> setenv bootargs root=/dev/mtdblock2 rootfstype=jffs2 rw earlyprintk=serial,uart0,115200 console=ttyBF0,115200 init=/sbin/init

bfin> run flashboot

## Booting image at 20100000 ...

Image Name: Linux-2.6.28-rc2-ADI-2009R1-pre-

Image Type: Blackfin Linux Kernel Image (gzip compressed)

Data Size: 1321563 Bytes = 1.3 MB

Load Address: 00800000

Entry Point: 00a4afc0

Verifying Checksum ... OK

Uncompressing Kernel Image ... OK

Starting Kernel at = a4afc0 with arguments: root=/dev/mtdblock2 rootfstype=jffs2 rw earlyprintk=serial,uart0,115200 console=ttyBF0,115200 init=/sbin/init

Linux version 2.6.28-rc2-ADI-2009R1-pre-svn5719 (tlan@sarissa) (gcc version 4.1.2 (ADI svn)) #177 Wed Nov 19 09:36:24 CET 2008

console [early_BFuart0] enabled

early printk enabled on early_BFuart0

Entering memory_setup()

Board Memory: 128MB

Kernel Managed Memory: 128MB

Memory map:

fixedcode = 0x00000400-0x00000490

text = 0x00800000-0x00994bb0

rodata = 0x00994bb0-0x00a17024

bss = 0x00a17030-0x00a2bbd8

data = 0x00a2bbd8-0x00a3e000

stack = 0x00a3c000-0x00a3e000

init = 0x00a3e000-0x00a5b000

available = 0x00a5b000-0x07bff000

DMA Zone = 0x07c00000-0x08000000

Hardware Trace Active and Enabled

Compiled for ADSP-BF561 Rev 0.5

Blackfin Linux support by blackfin.uclinux.org/

Processor Speed: 500 MHz core clock and 100 MHz System Clock

NOMPU: setting up cplb tables for global access

Hardware Trace:

0 Target : <0x008036d4> { _dump_bfin_trace_buffer + 0x0 }

Source : <0x00a4ba48> { _generate_cplb_tables_cpu + 0x458 } CALL pcrel

1 Target : <0x00a4ba48> { _generate_cplb_tables_cpu + 0x458 }

Source : <0x00a4b852> { _generate_cplb_tables_cpu + 0x262 } IF !CC JUMP

2 Target : <0x00a4b804> { _generate_cplb_tables_cpu + 0x214 }

Source : <0x00a4b7e8> { _generate_cplb_tables_cpu + 0x1f8 } IF CC JUMP

3 Target : <0x00a4b7e2> { _generate_cplb_tables_cpu + 0x1f2 }

Source : <0x00a4b5be> { _fill_cplbtab + 0xba } RTS

4 Target : <0x00a4b590> { _fill_cplbtab + 0x8c }

Source : <0x00a4b558> { _fill_cplbtab + 0x54 } JUMP.S

5 Target : <0x00a4b52e> { _fill_cplbtab + 0x2a }

Source : <0x00a4b5c4> { _fill_cplbtab + 0xc0 } JUMP.S

6 Target : <0x00a4b5c0> { _fill_cplbtab + 0xbc }

Source : <0x00a4b514> { _fill_cplbtab + 0x10 } IF !CC JUMP

7 Target : <0x00a4b504> { _fill_cplbtab + 0x0 }

Source : <0x00a4b7de> { _generate_cplb_tables_cpu + 0x1ee } CALL pcrel

8 Target : <0x00a4b7c0> { _generate_cplb_tables_cpu + 0x1d0 }

Source : <0x00a4b5be> { _fill_cplbtab + 0xba } RTS

9 Target : <0x00a4b590> { _fill_cplbtab + 0x8c }

Source : <0x00a4b558> { _fill_cplbtab + 0x54 } JUMP.S

10 Target : <0x00a4b52e> { _fill_cplbtab + 0x2a }

Source : <0x00a4b5c4> { _fill_cplbtab + 0xc0 } JUMP.S

11 Target : <0x00a4b5c0> { _fill_cplbtab + 0xbc }

Source : <0x00a4b514> { _fill_cplbtab + 0x10 } IF !CC JUMP

12 Target : <0x00a4b504> { _fill_cplbtab + 0x0 }

Source : <0x00a4b7bc> { _generate_cplb_tables_cpu + 0x1cc } CALL pcrel

13 Target : <0x00a4b79e> { _generate_cplb_tables_cpu + 0x1ae }

Source : <0x00a4b802> { _generate_cplb_tables_cpu + 0x212 } IF CC JUMP

14 Target : <0x00a4b7ea> { _generate_cplb_tables_cpu + 0x1fa }

Source : <0x00a4b8cc> { _generate_cplb_tables_cpu + 0x2dc } JUMP.S

15 Target : <0x00a4b8c8> { _generate_cplb_tables_cpu + 0x2d8 }

Source : <0x00a4b792> { _generate_cplb_tables_cpu + 0x1a2 } IF CC JUMP

BUG: failure at arch/blackfin/kernel/cplb-nompu/cplbinit.c:428/generate_cplb_tables_cpu()!

Kernel panic - not syncing: BUG!

Follow-ups

--- Mike Frysinger 2008-11-19 20:17:28

you need to fully describe your hardware

also, post your kernel .config file

--- Thomas Langås 2008-11-20 06:20:56

I don't know how detailed you want the hardware description, and what you want,

but this is some of the details:

* BF561 - ADSP-BF561SBBCZ-6a

* 128MB SDRAM - Micron 2xMT48LC32M16A2TG-75IT

* 64MB flash - Spansion S29GL512P10TFC010

* Ethernet - SMSC LAN91C111I-NU (running in 32bit-mode)

.config is attached

--- Mike Frysinger 2008-11-20 14:55:23

go to the file & line indicated and change the test from '<=' to '<'

and see if that fixes your crash

--- Mike Frysinger 2008-11-21 11:11:00

well ive committed that change as it seems to fix things for me

--- Thomas Langås 2008-11-24 08:37:28

Yes, now it bugs on the next line instead.

--- Thomas Langås 2008-11-24 08:45:23

Changed that line to < instead of <=, and it worked fine.

--- Mike Frysinger 2008-11-25 02:49:22

ive converted all <= to < in trunk

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