2008-03-27 00:42:27 2008 SVN -- BUG; failure at mm/nommu.c:861/do_mmap_private()!

david wang (CHINA)

Message: 53090

HI,

I've download the latest kernel and toolchain on Mar 26, and got a kernel panic of do_mmap_private. Even if a simplest helloworld program will cause this failure. The kernel is built with FDPIC type and support FDPIC application by make menuconfig. Is this a bug of the newest kernel? The same program works fine in the older kernel of Dec 2007.

Below is the dump of the boot up and error message,

U-Boot-1.1.3-ADI-R06R2 (Dec 10 2007 - 15:47:37)

CPU: ADSP BF537 Rev.: 0.2

Board: ADI BF537 stamp board

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

Clock: VCO: 500 MHz, Core: 500 MHz, System: 100 MHz

SDRAM: 64 MB

flash id = INTEL_MANUFACT

device id = INTEL_ID_28F320C3T

info->flash_id = 30009e

FLASH: 4 MB

In: serial

Out: serial

Err: serial

Using MAC Address 00:11:22:33:44:53

Net: ADI BF537 EMAC

I2C: ready

Hit any key to stop autoboot: 0

bf537> run nfsoboot

## Error: "nfsoboot" not defined

bf537> run nfsboot

Using MAC Address 00:11:22:33:44:53

TFTP from server 192.168.1.190; our IP address is 192.168.1.193

Filename 'linux'.

Load address: 0x1000000

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

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

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

done

Bytes transferred = 4158354 (3f7392 hex)

Loading .text @ 0x00100000 (1242272 bytes)

Loading .exit.text.refok @ 0x0022f4a0 (276 bytes)

Loading .rodata @ 0x0022f5c0 (338768 bytes)

Loading __ksymtab @ 0x00282110 (16320 bytes)

Loading __ksymtab_gpl @ 0x002860d0 (4448 bytes)

Loading __ksymtab_strings @ 0x00287230 (50024 bytes)

Loading __param @ 0x00293598 (560 bytes)

Clearing .bss @ 0x002937e0 (75776 bytes)

Loading .data @ 0x002a5fe0 (90144 bytes)

Loading .init.text @ 0x002bc000 (94048 bytes)

Loading .init.data @ 0x002d2f60 (13004 bytes)

Loading .init.setup @ 0x002d622c (592 bytes)

Loading .initcall.init @ 0x002d647c (476 bytes)

Loading .con_initcall.init @ 0x002d6658 (4 bytes)

Loading .init.ramfs @ 0x002d665c (1629930 bytes)

Loading .text_l1 @ 0xffa00000 (8160 bytes)

sh_addr: FFA00000, p_paddr: 00464546

Loading from: 01354000 to 00464546, size: 8160

Loading .data_l1 @ 0xff800000 (192 bytes)

sh_addr: FF800000, p_paddr: 00466526

Loading from: 01356000 to 00466526, size: 192

## Starting application at 0x002bc000 ...

Linux version 2.6.24.3-ADI-2008R2-pre-svn4483 (wangyixin@svnhost.imagintech) (gcc version 4.1.2 (ADI svn)) #170 Thu Mar 27 11:41:43 CST 2008

Warning: limiting memory to 56MB due to hardware anomaly 05000263

Board Memory: 64MB

Kernel Managed Memory: 64MB

Memory map:

fixedcode = 0x00000000400-0x00000000490

text = 0x00000000100000-0x0000000022f4a0

rodata = 0x0000000022f5c0-0x000000002937c8

bss = 0x000000002937e0-0x000000002a5fe0

data = 0x000000002a5fe0-0x000000002bc000

stack = 0x000000002ba000-0x000000002bc000

init = 0x000000002bc000-0x00000000467000

available = 0x00000000467000-0x0000000037ff000

DMA Zone = 0x000000003e00000-0x000000004000000

Hardware Trace Active and Enabled

Compiled for ADSP-BF537 Rev 0.2

Blackfin Linux support by http://blackfin.uclinux.org/

Processor Speed: 600 MHz core clock and 120 MHz System Clock

Instruction Cache Enabled

Data Cache Enabled (write-through)

Built 1 zonelists in Zone order, mobility grouping off. Total pages: 14224

Kernel command line: root=/dev/nfs rw nfsroot=192.168.1.190:/romfs ip=192.168.1.193:192.168.1.190:192.168.1.1:255.255.255.0:BF537:eth0:off

Configuring Blackfin Priority Driven Interrupts

PID hash table entries: 256 (order: 8, 1024 bytes)

console [ttyBF0] enabled

Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)

Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)

Memory available: 52252k/65536k RAM, (1708k init code, 1213k kernel code, 563k data, 2048k dma, 7752k reserved)

Blackfin Scratchpad data SRAM: 4 KB

Blackfin Data A SRAM: 16 KB (15 KB free)

Blackfin Data B SRAM: 32 KB (32 KB free)

Blackfin Instruction SRAM: 48 KB (40 KB free)

Security Framework initialized

Mount-cache hash table entries: 512

net_namespace: 64 bytes

NET: Registered protocol family 16

Blackfin GPIO Controller

Blackfin DMA Controller

stamp_init(): registering device resources

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

JFFS2 version 2.2. (NAND) 漏 2001-2006 Red Hat, Inc.

io scheduler noop registered

io scheduler anticipatory registered (default)

io scheduler cfq registered

ker_r_w driver, to read/write all registers, V1.00

Complite time: Mar 27 2008 11:39:42

Serial: Blackfin serial driver

bfin-uart.1: ttyBF0 at MMIO 0x00000000ffc00400 (irq = 18) is a BFIN-UART

RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize

bfin_mac_mdio: probed

bfin_mac: attached PHY driver [Generic PHY] (mii_bus:phy_addr=0:00000000d, irq=-1, mdc_clk=2500000Hz(mdc_div=23)@sclk=120MHz)

bfin_mac: Version 1.1, Blackfin BF53[67] BF527 on-chip Ethernet MAC driver

Linux video capture interface: v2.00

I2C Device initial: for bf537

tvp5150a: Ti 5150a i2c driver ready

bfin-spi bfin-spi.0: Blackfin BF5xx on-chip SPI Controller Driver, Version 1.0, regs_base@00000000ffc00500, dma channel@7

i2c /dev entries driver

i2c-bfin-twi i2c-bfin-twi.0: Blackfin BF5xx on-chip I2C TWI Contoller, regs_base@00000000ffc01400

spi_mmc: configure for card detection

TCP cubic registered

NET: Registered protocol family 1

NET: Registered protocol family 17

RPC: Registered udp transport module.

RPC: Registered tcp transport module.

dma_alloc_init: dma_page @ 0x000000006f2000 - 512 pages at 0x000000003e00000

IP-Config: Complete:

device=eth0, addr=192.168.1.193, mask=255.255.255.0, gw=192.168.1.1,

host=BF537, domain=, nis-domain=(none),

bootserver=192.168.1.190, rootserver=192.168.1.190, rootpath=

Freeing unused kernel memory: 1708k 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 - http://www.analog.com/blackfin

Have a lot of fun...

BusyBox v1.9.1 (2008-03-27 11:19:47 CST) built-in shell (msh)

Enter 'help' for a list of built-in commands.

root:/> PHY: 0:00000000d - Link is Up - 100/Full

root:/> mount -o nolock 192.168.1.100:/share/wangyixin/romfs/usr /mnt

root:/> cd /mnt/bin

root:/mnt/bin> ./test

BUG: failure at mm/nommu.c:861/do_mmap_private()!

Kernel panic - not syncing: BUG!

QuoteReplyEditDelete

2008-03-27 01:38:49 Re: 2008 SVN -- BUG; failure at mm/nommu.c:861/do_mmap_private()!

Yi Li (CHINA)

Message: 53091 Could you post your test app? And how do you build your test?

QuoteReplyEditDelete

2008-03-27 01:51:56 Re: 2008 SVN -- BUG; failure at mm/nommu.c:861/do_mmap_private()!

david wang (CHINA)

Message: 53094

hi, Yi

It's a simplest test program, just print the system clock every 1 seconds.

//////////////////////////test.c/////////////////////////////////////////////////////////////////////////////////////////////

#include <stdio.h>

#include <time.h>

#include <sys/time.h>

#define int64_t long long

static int64_t gettime(void)

{

struct timeval tv;

gettimeofday(&tv, NULL);

return (int64_t)tv.tv_sec * 1000000 + tv.tv_usec;

}

int main(void)

{

while(1)

{

printf("Time now: %lld\n", gettime());

usleep(1000*1000);

}

return 0;

}

//////////////////////////Makefile/////////////////////////////////////////////////////////////////////////////////////////////

bindir = /share/wangyixin/romfs/usr/bin

libdir = /share/wangyixin/romfs/usr/lib

CROSS = bfin-linux-uclibc-

CC = $(CROSS)gcc

CFLAGS += -g -Wall -mfdpic

SRCS = test.c

BINS = test

OBJS = $(SRCS:%.c=%.o)

%.o: %.c

$(CC) $(CFLAGS) -c -o $@ $<

all: $(BINS)

$(BINS): $(BINS).o

$(CC) $(CFLAGS) -o $@ $^

clean:

rm -f *.o $(BINS)

install : $(BINS)

install $(BINS) $(bindir)

.PHONY: all clean

QuoteReplyEditDelete

2008-03-27 08:34:46 Re: 2008 SVN -- BUG; failure at mm/nommu.c:861/do_mmap_private()!

Mike Frysinger (UNITED STATES)

Message: 53135 my guess it's because you're executing it over NFS

try copying the program to / and then execute it

QuoteReplyEditDelete

2008-03-27 11:58:04 Re: 2008 SVN -- BUG; failure at mm/nommu.c:861/do_mmap_private()!

david wang (CHINA)

Message: 53148

Hi,Mike

Yes, you're right. I'm executing it over NFS. but it works fine with the older kernel. if I copy it to ram disk like / or /varand it can be running ok.

Is this a bug? or, if I miss anything? How to solve this problem? Thanks!

QuoteReplyEditDelete

2008-03-27 12:43:48 Re: 2008 SVN -- BUG; failure at mm/nommu.c:861/do_mmap_private()!

Mike Frysinger (UNITED STATES)

Message: 53154 it's a bug we'll have to track down and fix. in the meantime you can just copy things from nfs before executing.

QuoteReplyEditDelete

2008-03-27 17:30:18 Re: 2008 SVN -- BUG; failure at mm/nommu.c:861/do_mmap_private()!

Mike Frysinger (UNITED STATES)

Message: 53178 ive opened a detailed report here if you want to follow things:

http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3992

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2008-03-27 00:42:27 2008 SVN -- BUG; failure at mm/nommu.c:861/do_mmap_private()!