[#6452] Fail to run kernel xip test for shared-flat mode in latest trunk after kernel upgrade(2011)

[#6452] Fail to run kernel xip test for shared-flat mode in latest trunk after kernel upgrade

Submitted By: Vivi Li

Open Date

2011-01-17 05:46:57

Priority:

Low Assignee:

steven miao

Status:

Open Fixed In Release:

N/A

Found In Release:

2011R1 Release:

Category:

N/A Board:

N/A

Processor:

BF561 Silicon Revision:

Is this bug repeatable?:

Yes Resolution:

Under Debugging

Uboot version or rev.:

Toolchain version or rev.:

gcc4.3-2010_Dec_09

App binary format:

N/A

Summary: Fail to run kernel xip test for shared-flat mode in latest trunk after kernel upgrade

Details:

Fail to run kernel xip test in latest trunk after kernel upgrade in latest trunk.

It happened after kernel was upgraded to 2.6.37 on Jan 6, 2011.

bfin> tftpboot 0x1000000 vmImage

SMC91111: MAC 00:e0:22:fe:b1:3c

Using SMC91111-0 device

TFTP from server 10.100.4.174; our IP address is 10.100.4.50

Filename 'vmImage'.

Load address: 0x1000000

Loading: #################################################################

#################################################################

########

done

Bytes transferred = 2022384 (1edbf0 hex)

bfin> protect off 20040000 203fffff

Un-Protected 60 sectors

bfin> erase 20040000 203fffff

............................................................ done

Erased 60 sectors

bfin> cp.b 0x1000000 20040000 0x1edbf0

Copy to Flash... done

bfin> set bootargs root=/dev/nfs rw nfsroot=$(serverip):/tftpboot/romfs console=ttyBF0,57600

bfin> run addip

bfin> bootm 20040000

## Booting kernel from Legacy Image at 20040000 ...

Image Name: bf561-0.5-2.6.37-ADI-2011R1-pre-

Image Type: Blackfin Linux Kernel Image (uncompressed)

Data Size: 2022320 Bytes = 1.9 MiB

Load Address: 20040040

Entry Point: 20191a20

Verifying Checksum ... OK

Loading Kernel Image ... OK

Starting Kernel at = 20191a20

console [ttyBF0] enabled, bootconsole disabled

Calibrating delay loop... 1183.74 BogoMIPS (lpj=2367488)

pid_max: default: 32768 minimum: 301

Mount-cache hash table entries: 512

Blackfin Scratchpad data SRAM: 4 KB

Blackfin L1 Data A SRAM: 16 KB (16 KB free)

Blackfin L1 Data B SRAM: 16 KB (16 KB free)

Blackfin L1 Instruction SRAM: 16 KB (3 KB free)

Blackfin L2 SRAM: 128 KB (128 KB free)

NET: Registered protocol family 16

Blackfin DMA Controller

ezkit_init(): registering device resources

bio: create slab <bio-0> at 0

Switching to clocksource bfin_cs_cycles

NET: Registered protocol family 2

IP route cache hash table entries: 1024 (order: 0, 4096 bytes)

TCP established hash table entries: 2048 (order: 2, 16384 bytes)

TCP bind hash table entries: 2048 (order: 1, 8192 bytes)

TCP: Hash tables configured (established 2048 bind 2048)

TCP reno registered

UDP hash table entries: 256 (order: 0, 4096 bytes)

UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)

NET: Registered protocol family 1

RPC: Registered udp transport module.

RPC: Registered tcp transport module.

RPC: Registered tcp NFSv4.1 backchannel transport module.

debug-mmrs: setting up Blackfin MMR debugfs

msgmni has been set to 124

io scheduler noop registered (default)

bfin-uart: Blackfin serial driver

bfin-uart.0: ttyBF0 at MMIO 0xffc00400 (irq = 35) is a BFIN-UART

brd: module loaded

smc91x.c: v1.1, sep 22 2004 by Nicolas Pitre <nico@fluxnic.net>

eth0: SMC91C11xFD (rev 1) at 2c010300 IRQ 82 [nowait]

eth0: Ethernet addr: 00:e0:22:fe:b1:3c

TCP cubic registered

NET: Registered protocol family 17

eth0: link down

IP-Config: Complete:

device=eth0, addr=10.100.4.50, mask=255.255.255.0, gw=10.100.4.174,

host=bf561-ezkit, domain=, nis-domain=(none),

bootserver=10.100.4.174, rootserver=10.100.4.174, rootpath=

dma_alloc_init: dma_page @ 0x0210b000 - 256 pages at 0x03f00000

eth0: link up, 100Mbps, full-duplex, lpa 0x41E1

VFS: Mounted root (nfs filesystem) on device 0:11.

Kernel panic - not syncing: No init found. Try passing init= option to kernel. See Linux Documentation/init.txt for guidance.

Hardware Trace:

0 Target : <0x2018b3ec> { _dump_stack + 0x0 }

Source : <0x2018b49a> { _panic + 0x6a } CALL (P2)

1 Target : <0x2018b492> { _panic + 0x62 }

Source : <0x2018b5fe> { _printk + 0x1a } RTS

2 Target : <0x2018b5fa> { _printk + 0x16 }

Source : <0x200511c6> { _vprintk + 0x162 } RTS

3 Target : <0x200511ba> { _vprintk + 0x156 }

Source : <0xffa00e16> { __common_int_entry + 0xe6 } RTI

4 Target : <0xffa00db4> { __common_int_entry + 0x84 }

Source : <0xffa00bdc> { _return_from_int + 0x58 } RTS

5 Target : <0xffa00bdc> { _return_from_int + 0x58 }

Source : <0xffa00bb2> { _return_from_int + 0x2e } IF !CC JUMP pcrel

6 Target : <0xffa00b84> { _return_from_int + 0x0 }

Source : <0xffa00db2> { __common_int_entry + 0x82 } CALL (P2)

7 Target : <0xffa00da8> { __common_int_entry + 0x78 }

Source : <0xffa0044a> { _asm_do_IRQ + 0x82 } RTS

8 Target : <0xffa00442> { _asm_do_IRQ + 0x7a }

Source : <0x20054bf4> { ___local_bh_enable + 0x38 } RTS

9 Target : <0x20054bbc> { ___local_bh_enable + 0x0 }

Source : <0x200552f2> { ___do_softirq + 0xc6 } JUMP (P2)

10 Target : <0x200552de> { ___do_softirq + 0xb2 }

Source : <0x200552c2> { ___do_softirq + 0x96 } IF CC JUMP pcrel

11 Target : <0x200552b4> { ___do_softirq + 0x88 }

Source : <0x2007664a> { _rcu_bh_qs + 0x1e } RTS

12 Target : <0x20076642> { _rcu_bh_qs + 0x16 }

Source : <0x2007649e> { _rcu_qsctr_help + 0x4a } RTS

13 Target : <0x20076488> { _rcu_qsctr_help + 0x34 }

Source : <0x20076460> { _rcu_qsctr_help + 0xc } IF CC JUMP pcrel

14 Target : <0x20076454> { _rcu_qsctr_help + 0x0 }

Source : <0x20076640> { _rcu_bh_qs + 0x14 } CALL (P2)

15 Target : <0x2007662c> { _rcu_bh_qs + 0x0 }

Source : <0x200552b2> { ___do_softirq + 0x86 } CALL (P1)

Stack info:

SP: [0x0201bf78] <0x0201bf78> /* kernel dynamic memory (maybe user-space) */

FP: (0x0201bf98)

Memory from 0x0201bf70 to 0201c000

0201bf70: 0201bf78 00000000 [201cb980]<2018b49c> 200fb4cc 201cb980 000064bf 000064bf

0201bf90: 000064bf 0201bfc0 (00000000)<200402d8> 2009034c 000153f8 00001014 00000000

0201bfb0: 00000000 00000000 00000000 00002000 000720c0 00000001 <2018b8c4> 20096200

0201bfd0: 200400e8 0002d574 00000000 00000000 00000000 <20040636> 00000000 00000000

0201bff0: 00000000 00000000 ffffffff 00000006

Return addresses in stack:

address : <0x2018b49c> { _panic + 0x6c }

frame 1 : <0x200402d8> { _init_post + 0xe8 }

address : <0x2018b8c4> { _kernel_init + 0xec }

address : <0x20040636> { _kernel_thread_helper + 0x6 }

Follow-ups

--- Mike Frysinger 2011-01-17 13:44:43

that output indicates your romfs is broken:

Kernel panic - not syncing: No init found. Try passing init= option to kernel.

See Linux Documentation/init.txt for guidance.

are you sure it boots with an older kernel ?

--- Vivi Li 2011-01-17 21:59:43

Yes, I'm sure it can boot with an old kernel on Jan 5th.

--- Vivi Li 2011-01-20 22:21:16

Mkie, your observation is right. In my previous log, error happened with broken

romfs. Now I don't see the same error message.

For kernel_xip test in fdpic mode, crash log is the same as bug 6458. Need to

recheck after 6458 is fixed.

For shared-flat mode, crash log is different. Bellow is the example:

IP-Config: Complete:

device=eth0, addr=10.100.4.50, mask=255.255.255.0, gw=10.100.4.174,

host=bf548-ezkit, domain=, nis-domain=(none),

bootserver=10.100.4.174, rootserver=10.100.4.174, rootpath=

VFS: Mounted root (nfs filesystem) on device 0:12.

Data access misaligned address violation

<5> - Attempted misaligned data memory or data cache access.

Kernel OOPS in progress

Deferred Exception context

CURRENT PROCESS:

COMM=sh PID=1 CPU=0

TEXT = 0x02240040-0x0226afc0 DATA = 0x022a0020-0x022aeda0

BSS = 0x022aeda0-0x022af3d0 USER-STACK = 0x022b3fbc

return address: [0x20080b30]; contents of:

0x20080b10: e120 4111 0062 6cc6 0127 0010 3208 3046

0x20080b20: 4d68 4f68 3200 0578 303a 0167 600a b142

0x20080b30: [b189] 9142 6fa6 e512 002d 0c42 1805 e410

0x20080b40: 001c e608 0026 3046 4d68 4f68 3208 3200

ADSP-BF548-0.2 525(MHz CCLK) 131(MHz SCLK) (mpu off)

Linux version 2.6.37-ADI-2011R1-pre-svn9570 (test@uclinux61-bf548-std) (gcc

version 4.3.5 (ADI-trunk/svn-5013) ) #42 Wed Jan 19 19:06:56 CST 2011

SEQUENCER STATUS: Not tainted

SEQSTAT: 00002024 IPEND: 8008 IMASK: ffff SYSCFG: 0006

EXCAUSE : 0x24

physical IVG3 asserted : <0xffa007ec> { _trap + 0x0 }

physical IVG15 asserted : <0xffa01074> { _evt_system_call + 0x0 }

logical irq 6 mapped : <0xffa0041c> { _bfin_coretmr_interrupt + 0x0

}

logical irq 48 mapped : <0x2017af84> { _bfin_serial_dma_rx_int + 0x0

}

logical irq 49 mapped : <0x2017acdc> { _bfin_serial_dma_tx_int + 0x0

}

logical irq 52 mapped : <0x201b7adc> { _bfin_twi_interrupt_entry +

0x0 }

logical irq 53 mapped : <0x201b7adc> { _bfin_twi_interrupt_entry +

0x0 }

logical irq 68 mapped : <0x201a3504> { _bfin_ata_interrupt + 0x0 }

logical irq 74 mapped : <0x201c018c> { _sdh_dma_irq + 0x0 }

logical irq 79 mapped : <0x201c06b4> { _sdh_stat_irq + 0x0 }

logical irq 175 mapped : <0x201b48ac> { _smsc911x_irqhandler + 0x0 }

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

RETN: <0x0201be9c> /* kernel dynamic memory (maybe user-space) */

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

RETS: <0x200f8e2a> { _load_flat_binary + 0x222 }

PC : <0x20080b30> { _start_thread + 0x14 }

DCPLB_FAULT_ADDR: <0x0201a000> /* kernel dynamic memory (maybe

user-space) */

ICPLB_FAULT_ADDR: <0x20080b30> { _start_thread + 0x14 }

PROCESSOR STATE:

R0 : 0201a000 R1 : 02300044 R2 : 00000001 R3 : 0001ffd9

R4 : 00000000 R5 : 02300044 R6 : fffffffe R7 : 022b3fbc

P0 : 0201a000 P1 : 202357e6 P2 : 20080b1c P3 : 0201bed4

P4 : 0201bed4 P5 : 022b3fda FP : ffa00160 SP : 0201bdc0

LB0: 200f8cb6 LT0: 200f8c88 LC0: 00000000

LB1: 200f8cb4 LT1: 200f8c98 LC1: 00000000

B0 : 0000036c L0 : 00000000 M0 : 0000002c I0 : 0000cde8

B1 : 0002ca5c L1 : 00000000 M1 : 00000000 I1 : 022f0e5c

B2 : 0002095c L2 : 00000000 M2 : 00000000 I2 : 00000001

B3 : 000000ae L3 : 00000000 M3 : 00000000 I3 : 000000b0

A0.w: 00000001 A0.x: 00000000 A1.w: 00000001 A1.x: 00000000

USP : 00000000 ASTAT: 02003024

--- Vivi Li 2011-01-30 22:45:27

After bug 6458 is fixed, kernel_xip test in fdpic mode is pass now.

But for shared-flat mode, it still crash with error message in my previous

comment.

--- Bob Liu 2011-03-01 04:25:36

In my test, the log is a little different.

IP-Config: Complete:

device=eth0, addr=10.100.4.50, mask=255.255.255.0, gw=10.100.4.174,

host=bf548-ezkit, domain=, nis-domain=(none),

bootserver=10.100.4.174, rootserver=10.100.4.174, rootpath=

VFS: Mounted root (nfs filesystem) on device 0:11.

Freeing unused kernel memory: 124k freed

BINFMT_FLAT: reloc outside program 0x1012b4c (0 - 0x3a370/0x2afc0), killing

sh!

Kernel panic - not syncing: No init found. Try passing init= option to kernel.

See Linux Documentation/init.txt for guidance.

Hardware Trace:

0 Target : <0x00188308> { _dump_stack + 0x0 }

Source : <0x00188390> { _panic + 0x50 } CALL pcrel

1 Target : <0x00188390> { _panic + 0x50 }

Source : <0x001884dc> { _printk + 0x14 } RTS

2 Target : <0x001884d8> { _printk + 0x10 }

Source : <0x00011742> { _vprintk + 0x166 } RTS

3 Target : <0x00011736> { _vprintk + 0x15a }

Source : <0xffa00ce4> { __common_int_entry + 0xcc } RTI

4 Target : <0xffa00c82> { __common_int_entry + 0x6a }

Source : <0xffa00acc> { _return_from_int + 0x58 } RTS

5 Target : <0xffa00acc> { _return_from_int + 0x58 }

Source : <0xffa00aa2> { _return_from_int + 0x2e } IF !CC JUMP pcrel

6 Target : <0xffa00a74> { _return_from_int + 0x0 }

Source : <0xffa00c7e> { __common_int_entry + 0x66 } JUMP.L

7 Target : <0xffa00c7c> { __common_int_entry + 0x64 }

Source : <0xffa00380> { _asm_do_IRQ + 0x60 } RTS

8 Target : <0xffa00378> { _asm_do_IRQ + 0x58 }

Source : <0x00014da4> { ___local_bh_enable + 0x38 } RTS

9 Target : <0x00014d6c> { ___local_bh_enable + 0x0 }

Source : <0x0001544c> { ___do_softirq + 0xb8 } JUMP.L

10 Target : <0x00015440> { ___do_softirq + 0xac }

Source : <0x00015424> { ___do_softirq + 0x90 } IF CC JUMP pcrel

11 Target : <0x00015416> { ___do_softirq + 0x82 }

Source : <0x00034e94> { _rcu_bh_qs + 0x18 } RTS

12 Target : <0x00034e8c> { _rcu_bh_qs + 0x10 }

Source : <0x00034d18> { _rcu_qsctr_help + 0x50 } RTS

13 Target : <0x00034d02> { _rcu_qsctr_help + 0x3a }

Source : <0x00034cd4> { _rcu_qsctr_help + 0xc } IF CC JUMP pcrel

14 Target : <0x00034cc8> { _rcu_qsctr_help + 0x0 }

Source : <0x00034e88> { _rcu_bh_qs + 0xc } CALL pcrel

15 Target : <0x00034e7c> { _rcu_bh_qs + 0x0 }

Source : <0x00015412> { ___do_softirq + 0x7e } CALL pcrel

Stack info:

SP: [0x0201bf80] <0x0201bf80> /* kernel dynamic memory (maybe

user-space) */

FP: (0x0201bfe4)

Memory from 0x0201bf80 to 0201c000

0201bf80:[001c5444] 00188394 0022142c 001c5444 0020e70f 0020e70f 0020e70f

0201bfc8

0201bfa0: 00000000 00001262 0022142c 00209014 00000000 00000000 00000000

00000000

0201bfc0: 00000000 0201bfc8 0029ec00 00000000 0023a1ea 00256774 00256774

00000000

0201bfe0: 00000000 (00000000)<00001576> 00000000 00000000 00000000

ffffffff 00000006

Return addresses in stack:

frame 1 : <0x00001576> { _kernel_thread_helper + 0x6 }

--- Bob Liu 2011-03-01 04:36:29

After added flat support into kernel, I can't reproduce this problem.

================

## Booting kernel from Legacy Image at 01000000 ...

Image Name: bf548-0.2-2.6.37-ADI-2011R1-pre-

Created: 2011-03-01 9:40:58 UTC

Image Type: Blackfin Linux Kernel Image (gzip compressed)

Data Size: 1299208 Bytes = 1.2 MiB

Load Address: 00001000

Entry Point: 00244b14

Verifying Checksum ... OK

Uncompressing Kernel Image ... OK

Starting Kernel at = 00244b14

console [ttyBF1] enabled, bootconsole disabled

Calibrating delay loop... 1046.52 BogoMIPS (lpj=2093056)

pid_max: default: 32768 minimum: 301

Mount-cache hash table entries: 512

Blackfin Scratchpad data SRAM: 4 KB

Blackfin L1 Data A SRAM: 16 KB (16 KB free)

Blackfin L1 Data B SRAM: 16 KB (16 KB free)

Blackfin L1 Instruction SRAM: 48 KB (41 KB free)

Blackfin L2 SRAM: 128 KB (128 KB free)

NET: Registered protocol family 16

Blackfin DMA Controller

ezkit_init(): registering device resources

bio: create slab <bio-0> at 0

spi spi0.2: Warning: SPI CPHA not set: Slave Select not under software

control!

See Documentation/blackfin/bfin-spi-notes.txt

bfin-spi bfin-spi.0: Blackfin on-chip SPI Controller Driver, Version 1.0,

regs_base@ffc00500, dma channel@4

bfin-spi bfin-spi.1: Blackfin on-chip SPI Controller Driver, Version 1.0,

regs_base@ffc02300, dma channel@5

i2c-bfin-twi i2c-bfin-twi.0: Blackfin BF5xx on-chip I2C TWI Contoller,

regs_base@ffc00700

i2c-bfin-twi i2c-bfin-twi.1: Blackfin BF5xx on-chip I2C TWI Contoller,

regs_base@ffc02200

NET: Registered protocol family 2

IP route cache hash table entries: 1024 (order: 0, 4096 bytes)

TCP established hash table entries: 2048 (order: 2, 16384 bytes)

TCP bind hash table entries: 2048 (order: 1, 8192 bytes)

TCP: Hash tables configured (established 2048 bind 2048)

TCP reno registered

UDP hash table entries: 256 (order: 0, 4096 bytes)

UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)

NET: Registered protocol family 1

RPC: Registered udp transport module.

RPC: Registered tcp transport module.

RPC: Registered tcp NFSv4.1 backchannel transport module.

debug-mmrs: setting up Blackfin MMR debugfs

msgmni has been set to 118

io scheduler noop registered (default)

bf54x-lq043: FrameBuffer initializing...

dma_alloc_init: dma_page @ 0x021bc000 - 512 pages at 0x03e00000

Console: switching to colour frame buffer device 80x24

bfin-otp: initialized

bfin-uart: Blackfin serial driver

bfin-uart.1: ttyBF1 at MMIO 0xffc02000 (irq = 48) is a BFIN-UART

brd: module loaded

smsc911x: Driver version 2008-10-21.

smsc911x-mdio: probed

eth0: attached PHY driver [Generic PHY] (mii_bus:phy_addr=0:01, irq=-1)

net eth0: MAC Address: 00:e0:22:fe:bd:b8

input: bf54x-keys as /devices/platform/bf54x-keys/input/input0

rtc-bfin rtc-bfin: rtc core: registered rtc-bfin as rtc0

i2c /dev entries driver

TCP cubic registered

NET: Registered protocol family 17

rtc-bfin rtc-bfin: setting system clock to 1970-09-30 19:29:21 UTC (23570961)

net eth0: SMSC911x/921x identified at 0x24000000, IRQ: 175

IP-Config: Complete:

device=eth0, addr=10.100.4.50, mask=255.255.255.0, gw=10.100.4.174,

host=bf548-ezkit, domain=, nis-domain=(none),

bootserver=10.100.4.174, rootserver=10.100.4.174, rootpath=

VFS: Mounted root (nfs filesystem) on device 0:11.

Freeing unused kernel memory: 124k freed

BusyBox v1.18.3 (2011-02-27 10:01:23 CST) hush - the humble shell

/ #

/ # ls

bin etc home lib mnt proc root sbin sys tmp usr var

/ #

--- Bob Liu 2011-03-10 04:10:26

Can't reproduce on bf561 on svn trunk.

=========

U-Boot 2010.06 (ADI-2010R1-RC1) (Sep 29 2010 - 17:50:45)

CPU: ADSP bf561-0.3 (Detected Rev: 0.5) (bypass boot)

Board: ADI BF561 EZ-Kit Lite board

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

Clock: VCO: 600 MHz, Core: 600 MHz, System: 100 MHz

RAM: 64 MiB

Flash: 8 MiB

In: serial

Out: serial

Err: serial

KGDB: [on serial] ready

Net: SMC91111-0

Hit any key to stop autoboot: 0

bfin>

bfin> setenv ramargs set bootargs root=/dev/nfs rw

nfsroot=$(serverip):/tftpboot/romfs console=ttyBF0,57600

bfin> run bootcmd

SMC91111: MAC 00:e0:22:fe:ba:2a

Using SMC91111-0 device

TFTP from server 10.100.4.174; our IP address is 10.100.4.50

Filename 'uImage'.

Load address: 0x1000000

Loading: #################################################################

###############

done

Bytes transferred = 1163775 (11c1ff hex)

## Booting kernel from Legacy Image at 01000000 ...

Image Name: bf561-0.3-2.6.37.3-ADI-2011R1-pr

Image Type: Blackfin Linux Kernel Image (gzip compressed)

Data Size: 1163711 Bytes = 1.1 MiB

Load Address: 00001000

Entry Point: 001fff34

Verifying Checksum ... OK

Uncompressing Kernel Image ... OK

Starting Kernel at = 001fff34

console [ttyBF0] enabled, bootconsole disabled

Calibrating delay loop... 1196.03 BogoMIPS (lpj=2392064)

pid_max: default: 32768 minimum: 301

Mount-cache hash table entries: 512

Blackfin Scratchpad data SRAM: 4 KB

Blackfin L1 Data A SRAM: 16 KB (16 KB free)

Blackfin L1 Data B SRAM: 16 KB (16 KB free)

Blackfin L1 Instruction SRAM: 16 KB (3 KB free)

Blackfin L2 SRAM: 128 KB (128 KB free)

NET: Registered protocol family 16

Blackfin DMA Controller

ezkit_init(): registering device resources

bio: create slab <bio-0> at 0

bfin-spi bfin-spi.0: Blackfin on-chip SPI Controller Driver, Version 1.0,

regs_base@ffc00500, dma channel@16

Switching to clocksource bfin_cs_cycles

NET: Registered protocol family 2

IP route cache hash table entries: 1024 (order: 0, 4096 bytes)

TCP established hash table entries: 2048 (order: 2, 16384 bytes)

TCP bind hash table entries: 2048 (order: 1, 8192 bytes)

TCP: Hash tables configured (established 2048 bind 2048)

TCP reno registered

UDP hash table entries: 256 (order: 0, 4096 bytes)

UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)

NET: Registered protocol family 1

RPC: Registered udp transport module.

RPC: Registered tcp transport module.

RPC: Registered tcp NFSv4.1 backchannel transport module.

debug-mmrs: setting up Blackfin MMR debugfs

msgmni has been set to 106

io scheduler noop registered (default)

bfin-uart: Blackfin serial driver

bfin-uart.0: ttyBF0 at MMIO 0xffc00400 (irq = 35) is a BFIN-UART

brd: module loaded

smc91x.c: v1.1, sep 22 2004 by Nicolas Pitre <nico@fluxnic.net>

eth0: SMC91C11xFD (rev 2) at 2c010300 IRQ 82 [nowait]

eth0: Ethernet addr: 00:e0:22:fe:ba:2a

bfin-wdt: initialized: timeout=20 sec (nowayout=0)

TCP cubic registered

NET: Registered protocol family 17

Registering the dns_resolver key type

eth0: link down

IP-Config: Complete:

device=eth0, addr=10.100.4.50, mask=255.255.255.0, gw=10.100.4.174,

host=bf561-ezkit, domain=, nis-domain=(none),

bootserver=10.100.4.174, rootserver=10.100.4.174, rootpath=

dma_alloc_init: dma_page @ 0x0211d000 - 256 pages at 0x03f00000

eth0: link up, 100Mbps, full-duplex, lpa 0x41E1

VFS: Mounted root (nfs filesystem) on device 0:11.

Freeing unused kernel memory: 112k freed

BusyBox v1.16.2 (2010-12-10 16:05:07 GMT) hush - the humble shell

/ # ls

bin dev etc home lib mnt proc root sbin sys tmp usr var

/ #

--- Bob Liu 2011-03-10 04:35:22

I am sorry, I compiled the kernel with a wrong config file.

Now I can reproduce the problem.

--- steven miao 2011-03-31 08:22:30

it's ok in current trunk after commit r9808. the .data.percpu* sections in xip

kernel's init data section is broken, and maybe the nfs or rcu use some percpu

optimizations caused the crash, but i am not very sure.

log is below:

bfin> protect off 20040000 203fffff

Un-Protected 60 sectors

bfin> erase 20040000 203fffff

............................................................ done

Erased 60 sectors

bfin> cp.b $(loadaddr) 20040000 $(filesize)

Copy to Flash... done

bfin> run nfsboot

SMC91111: MAC 00:e0:22:fe:b1:f2

Using SMC91111-0 device

TFTP from server 10.99.29.111; our IP address is 10.99.29.104

Filename 'vmImage'.

Load address: 0x1000000

Loading: #################################################################

#############

done

Bytes transferred = 1137474 (115b42 hex)

## Booting kernel from Legacy Image at 01000000 ...

Image Name: bf561-0.3-2.6.37.4-ADI-2011R1-pr

Image Type: Blackfin Linux Kernel Image (gzip compressed)

Data Size: 1137410 Bytes = 1.1 MiB

Load Address: 00001000

Entry Point: 001f5f34

Verifying Checksum ... OK

Uncompressing Kernel Image ... OK

Starting Kernel at = 001f5f34

console [ttyBF0] enabled, bootconsole disabled

Calibrating delay loop... 1196.03 BogoMIPS (lpj=2392064)

pid_max: default: 32768 minimum: 301

Mount-cache hash table entries: 512

Blackfin Scratchpad data SRAM: 4 KB

Blackfin L1 Data A SRAM: 16 KB (16 KB free)

Blackfin L1 Data B SRAM: 16 KB (16 KB free)

Blackfin L1 Instruction SRAM: 16 KB (4 KB free)

Blackfin L2 SRAM: 128 KB (128 KB free)

NET: Registered protocol family 16

Blackfin DMA Controller

ezkit_init(): registering device resources

bio: create slab <bio-0> at 0

Switching to clocksource bfin_cs_cycles

NET: Registered protocol family 2

IP route cache hash table entries: 1024 (order: 0, 4096 bytes)

TCP established hash table entries: 2048 (order: 2, 16384 bytes)

TCP bind hash table entries: 2048 (order: 1, 8192 bytes)

TCP: Hash tables configured (established 2048 bind 2048)

TCP reno registered

UDP hash table entries: 256 (order: 0, 4096 bytes)

UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)

NET: Registered protocol family 1

RPC: Registered udp transport module.

RPC: Registered tcp transport module.

RPC: Registered tcp NFSv4.1 backchannel transport module.

debug-mmrs: setting up Blackfin MMR debugfs

msgmni has been set to 106

io scheduler noop registered (default)

bfin-uart: Blackfin serial driver

bfin-uart.0: ttyBF0 at MMIO 0xffc00400 (irq = 35) is a BFIN-UART

brd: module loaded

smc91x.c: v1.1, sep 22 2004 by Nicolas Pitre <nico@fluxnic.net>

eth0: SMC91C11xFD (rev 1) at 2c010300 IRQ 82 [nowait]

eth0: Ethernet addr: 00:e0:22:fe:b1:f2

TCP cubic registered

NET: Registered protocol family 17

Registering the dns_resolver key type

eth0: link down

IP-Config: Complete:

device=eth0, addr=10.99.29.104, mask=255.255.255.0, gw=10.99.29.1,

host=bf561-ezkit, domain=, nis-domain=(none),

bootserver=10.99.29.111, rootserver=10.99.29.111, rootpath=

dma_alloc_init: dma_page @ 0x02111000 - 256 pages at 0x03f00000

eth0: link up, 100Mbps, full-duplex, lpa 0x45E1

VFS: Mounted root (nfs filesystem) on device 0:11.

Freeing unused kernel memory: 104k freed

_____________________________________

a8888b. / Welcome to the uClinux distribution \

d888888b. / _ _ \

8P"YP"Y88 / | | |_| __ __ (TM) |

8|o||o|88 _____/ | | _ ____ _ _ \ \/ / |

8' .88 \ | | | | _ \| | | | \ / |

8`._.' Y8. \ | |__ | | | | | |_| | / \ |

d/ `8b. \ \____||_|_| |_|\____|/_/\_\ |

dP . Y8b. \ For embedded processors including |

d8:' " `::88b \ the Analog Devices Blackfin /

d8" 'Y88b \___________________________________/

:8P ' :888

8a. : _a88P For further information, check out:

._/"Yaa_: .| 88P| - http://blackfin.uclinux.org/

\ YP" `| 8P `. - http://docs.blackfin.uclinux.org/

/ \.___.d| .' - http://www.uclinux.org/

`--..__)8888P`._.' jgs/a:f - https://www.analog.com/blackfin

Have a lot of fun...

BusyBox v1.16.2 (2010-11-12 10:31:22 CST) hush - the humble shell

root:/>

--- Vivi Li 2011-06-01 06:16:12

Latest updates:

On bf537-stamp/bf527-ezkit, kernel xip in fdpic mode is OK, but still crash

with shared-flat mode. And from the error message, it seems broken again with

romfs.

Bellow is the log on bf537-stamp:

U-Boot 2010.06 (ADI-2010R1-RC1) (Sep 29 2010 - 17:49:40)

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

Board: ADI BF537 stamp board

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

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

RAM: 64 MiB

Flash: 4 MiB

In: serial

Out: serial

Err: serial

KGDB: [on serial] ready

Net: bfin_mac

Hit any key to stop autoboot: 5 ^H^H^H 0

bfin>

bfin> tftpboot 0x1000000 vmImage

Using bfin_mac device

TFTP from server 10.100.4.174; our IP address is 10.100.4.50

Filename 'vmImage'.

Load address: 0x1000000

Loading: *^H#################################################################

#################################################################

################

done

Bytes transferred = 2139800 (20a698 hex)

bfin> protect off 20040000 203effff

........................................................... done

Un-Protected 59 sectors

bfin> erase 20040000 203effff

........................................................... done

Erased 59 sectors

bfin> cp.b 0x1000000 20040000 0x20a698

Copy to Flash... done

bfin> set bootargs root=/dev/nfs rw nfsroot=$(serverip):/tftpboot/romfs

console=ttyBF0,57600

bfin> run addip

bfin>

bfin> bootm 20040000

## Booting kernel from Legacy Image at 20040000 ...

Image Name: bf537-0.2-2.6.39-ADI-2011R1-pre-

Created: 2011-05-29 20:46:01 UTC

Image Type: Blackfin Linux Kernel Image (uncompressed)

Data Size: 2139736 Bytes = 2 MiB

Load Address: 20040040

Entry Point: 201a8774

Verifying Checksum ... OK

Loading Kernel Image ... OK

Starting Kernel at = 201a8774

console [ttyBF0] enabled, bootconsole disabled

Calibrating delay loop... 995.32 BogoMIPS (lpj=1990656)

pid_max: default: 32768 minimum: 301

Mount-cache hash table entries: 512

Blackfin Scratchpad data SRAM: 4 KB

Blackfin L1 Data A SRAM: 16 KB (16 KB free)

Blackfin L1 Data B SRAM: 16 KB (16 KB free)

Blackfin L1 Instruction SRAM: 48 KB (34 KB free)

NET: Registered protocol family 16

Blackfin DMA Controller

stamp_init(): registering device resources

bio: create slab <bio-0> at 0

Switching to clocksource bfin_cs_cycles

NET: Registered protocol family 2

IP route cache hash table entries: 1024 (order: 0, 4096 bytes)

TCP established hash table entries: 2048 (order: 2, 16384 bytes)

TCP bind hash table entries: 2048 (order: 1, 8192 bytes)

TCP: Hash tables configured (established 2048 bind 2048)

TCP reno registered

UDP hash table entries: 256 (order: 0, 4096 bytes)

UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)

NET: Registered protocol family 1

RPC: Registered udp transport module.

RPC: Registered tcp transport module.

RPC: Registered tcp NFSv4.1 backchannel transport module.

debug-mmrs: setting up Blackfin MMR debugfs

msgmni has been set to 110

io scheduler noop registered (default)

bfin-uart: Blackfin serial driver

bfin-uart.0: ttyBF0 at MMIO 0xffc00400 (irq = 18) is a BFIN-UART

brd: module loaded

bfin_mii_bus: probed

bfin_mac: attached PHY driver [SMSC LAN83C185] (mii_bus:phy_addr=0:01, irq=-1,

mdc_clk=2500000Hz(mdc_div=24)@sclk=125MHz)

bfin_mac bfin_mac.0: eth0: Features changed: 0x00004800 -> 0x00004000

bfin_mac bfin_mac.0: eth0: Blackfin on-chip Ethernet MAC driver, Version 1.1

TCP cubic registered

NET: Registered protocol family 17

IP-Config: Complete:

device=eth0, addr=10.100.4.50, mask=255.255.255.0, gw=10.100.4.174,

host=bf537-stamp, domain=, nis-domain=(none),

bootserver=10.100.4.174, rootserver=10.100.4.174, rootpath=

dma_alloc_init: dma_page @ 0x02133000 - 256 pages at 0x03f00000

PHY: 0:01 - Link is Up - 100/Full

VFS: Mounted root (nfs filesystem) on device 0:11.

Kernel panic - not syncing: No init found. Try passing init= option to kernel.

See Linux Documentation/init.txt for guidance.

Hardware Trace:

0 Target : <0x201a1040> { _dump_stack + 0x0 }

Source : <0x201a10ee> { _panic + 0x6a } CALL (P2)

1 Target : <0x201a10e6> { _panic + 0x62 }

Source : <0x201a1252> { _printk + 0x1a } RTS

2 Target : <0x201a124e> { _printk + 0x16 }

Source : <0x200524aa> { _vprintk + 0x17e } RTS

3 Target : <0x2005249e> { _vprintk + 0x172 }

Source : <0xffa00da2> { __common_int_entry + 0xe6 } RTI

4 Target : <0xffa00d40> { __common_int_entry + 0x84 }

Source : <0xffa00b68> { _return_from_int + 0x58 } RTS

5 Target : <0xffa00b68> { _return_from_int + 0x58 }

Source : <0xffa00b3e> { _return_from_int + 0x2e } IF !CC JUMP pcrel

6 Target : <0xffa00b10> { _return_from_int + 0x0 }

Source : <0xffa00d3e> { __common_int_entry + 0x82 } CALL (P2)

7 Target : <0xffa00d34> { __common_int_entry + 0x78 }

Source : <0xffa003ca> { _asm_do_IRQ + 0x82 } RTS

8 Target : <0xffa003c2> { _asm_do_IRQ + 0x7a }

Source : <0x20055f8c> { ___local_bh_enable + 0x38 } RTS

9 Target : <0x20055f54> { ___local_bh_enable + 0x0 }

Source : <0x200566bc> { ___do_softirq + 0xd4 } JUMP (P2)

10 Target : <0x200566a8> { ___do_softirq + 0xc0 }

Source : <0x2005668c> { ___do_softirq + 0xa4 } IF CC JUMP pcrel

11 Target : <0x20056676> { ___do_softirq + 0x8e }

Source : <0x2007b1e2> { _rcu_bh_qs + 0x1e } RTS

12 Target : <0x2007b1da> { _rcu_bh_qs + 0x16 }

Source : <0x2007af04> { _rcu_qsctr_help + 0x50 } RTS

13 Target : <0x2007aeee> { _rcu_qsctr_help + 0x3a }

Source : <0x2007aec0> { _rcu_qsctr_help + 0xc } IF CC JUMP pcrel

14 Target : <0x2007aeb4> { _rcu_qsctr_help + 0x0 }

Source : <0x2007b1d8> { _rcu_bh_qs + 0x14 } CALL (P2)

15 Target : <0x2007b1c4> { _rcu_bh_qs + 0x0 }

Source : <0x20056674> { ___do_softirq + 0x8c } CALL (P1)

Stack info:

SP: [0x0201bf74] <0x0201bf74> /* kernel dynamic memory (maybe

user-space) */

FP: (0x0201bfe0)

Memory from 0x0201bf70 to 0201c000

0201bf70: 00000000 [201e4c44]<201a10f0> 20105174 201e4c44 000063cb

000063cb 000063cb

0201bf90: 0201bfbc 0002d5c0 <200402bc> 20096418 0001559c 00001018

00000000 00000000

0201bfb0: 00000000 00000000 00002000 00072800 00000001 <201a14f4>

2009d028 20040040

0201bfd0: 0002d7c8 00000000 00000000 00000000 (00000000)<2004062e>

00000000 00000000

0201bff0: 00000000 00000000 ffffffff 00000006

Return addresses in stack:

address : <0x201a10f0> { _panic + 0x6c }

address : <0x200402bc> { _init_post + 0xe8 }

address : <0x201a14f4> { _kernel_init + 0x148 }

frame 1 : <0x2004062e> { _kernel_thread_helper + 0x6 }

--- steven miao 2011-10-20 02:47:35

change the privilege of nfs root dir can bootup, but there is still a

unalignment issue in kernel_execve()

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[#6452] Fail to run kernel xip test for shared-flat mode in latest trunk after kernel upgrade(2011)