[#4961] kgdb fails to stop at hardware breakpoint now

Submitted By: Mingquan Pan

Open Date

2009-03-04 23:05:00 Close Date

2010-06-11 04:21:38

Priority:

Medium Assignee:

Sonic Zhang

Status:

Closed Fixed In Release:

N/A

Found In Release:

2009R1-RC6 Release:

Category:

N/A Board:

N/A

Processor:

BF537 Silicon Revision:

Is this bug repeatable?:

Yes Resolution:

Not reproducible

Uboot version or rev.:

Toolchain version or rev.:

Jan 17,2009

App binary format:

N/A

Summary: kgdb fails to stop at hardware breakpoint now

Details:

kgdb fails to stop at hardware breakpoint through both ethernet and uart port.

failed time: 2009_Mar_02_15_33, ucdist ver: 7808, kernel ver: 6139

Last passed time: 2009_Feb_26_18_41, ucdist ver: 7801, kernel ver: 6130

## Booting kernel from Legacy Image at 02000000 ...

Image Name: Linux-2.6.28.7-ADI-2009R1-pre-sv

Created: 2009-03-02 23:13:02 UTC

Image Type: Blackfin Linux Kernel Image (gzip compressed)

Data Size: 3964532 Bytes = 3.8 MB

Load Address: 00001000

Entry Point: 0019a49c

Verifying Checksum ... OK

Uncompressing Kernel Image ... OK

Starting Kernel at = 0019a49c

Linux version 2.6.28.7-ADI-2009R1-pre-svn6139 (test@uclinux50-bf537-ad9960-ad1836) (gcc version 4.1.2 (ADI svn)) #6 Tue Mar 3 07:12:41 CST 2009

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

Board Memory: 64MB

Kernel Managed Memory: 64MB

Memory map:

fixedcode = 0x00000400-0x00000490

text = 0x00001000-0x00111e20

rodata = 0x00111e20-0x00165700

bss = 0x00165700-0x0017b4bc

data = 0x0017b4bc-0x0018c000

stack = 0x0018a000-0x0018c000

init = 0x0018c000-0x0078e000

available = 0x0078e000-0x037ff000

DMA Zone = 0x03f00000-0x04000000

Hardware Trace Active and Enabled

Boot Mode: 0

Reset caused by Software reset

Compiled for ADSP-BF537 Rev 0.2

Blackfin Linux support by blackfin.uclinux.org/

Processor Speed: 500 MHz core clock and 125 MHz System Clock

NOMPU: setting up cplb tables

Instruction Cache Enabled for CPU0

Data Cache Enabled for CPU0 (write-back)

Built 1 zonelists in Zone order, mobility grouping off. Total pages: 14223

Kernel command line: console=ttyBF0,57600 kgdboc=ttyBF1,57600n8

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: 49024k/65536k RAM, (6152k init code, 1091k kernel code, 489k data, 1024k dma, 7756k reserved)

Calibrating delay loop... 997.37 BogoMIPS (lpj=1994752)

Security Framework initialized

Mount-cache hash table entries: 512

Blackfin Scratchpad data SRAM: 4 KB

Blackfin L1 Data A SRAM: 16 KB (15 KB free)

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

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

PDA for CPU0 reserved at 00166930

net_namespace: 288 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

NET: Registered protocol family 1

msgmni has been set to 95

io scheduler noop registered

io scheduler anticipatory registered (default)

io scheduler cfq registered

Serial: Blackfin serial driver

bfin-uart.1: ttyBF0 at MMIO 0xffc00400 (irq = 18) is a BFIN-UART

bfin-uart.1: ttyBF1 at MMIO 0xffc02000 (irq = 20) is a BFIN-UART

kgdb: Registered I/O driver kgdboc.

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: Blackfin on-chip Ethernet MAC driver, Version 1.1

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

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

TCP cubic registered

NET: Registered protocol family 17

rtc-bfin rtc-bfin: setting system clock to 1971-06-18 22:50:55 UTC (46133455)

Freeing unused kernel memory: 6152k 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| - blackfin.uclinux.org/

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

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

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

Have a lot of fun...

BusyBox v1.13.2 (2009-03-03 04:47:20 CST) built-in shell (msh)

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

root:/>

#### Debugging is through uart port.

************** STEP 3: Start KGDB TEST

ifconfig eth0 10.100.4.50

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

脗SysRq : GDB

Entering KGDB

Prepare KGDB through uart port debug!spawn bfin-uclinux-gdb /home/test/work/cruise/checkouts/uclinux-dist/linux-2.6.x/vmlinux

GNU gdb 6.6

GDB is free software, covered by the GNU General Public License, and you are

welcome to change it and/or distribute copies of it under certain conditions.

Type "show copying" to see the conditions.

There is absolutely no warranty for GDB. Type "show warranty" for details.

This GDB was configured as "--host=i686-pc-linux-gnu --target=bfin-uclinux"...

(gdb)

Case 1 ...PASS

set remotebaud 57600

(gdb)

Case 2 ...PASS

target remote /dev/ttyUSB0

Remote debugging using /dev/ttyUSB0

kgdb_breakpoint () at kernel/kgdb.c:1722

Case 2 ...PASS

1722 atomic_set(&kgdb_setting_breakpoint, 0);

(gdb) break kgdb_test

Breakpoint 1 at 0x892e: file arch/blackfin/kernel/kgdb_test.c, line 57.

Case 3 ...PASS

(gdb) c

Continuing.

Case 4 ...PASS

B: not found

root:/> [New Thread 163]

[Switching to Thread 163]

Breakpoint 1, kgdb_test (name=0x11294c "hello world!", len=12, count=85, z=16) at arch/blackfin/kernel/kgdb_test.c:57

Case 5 ...PASS

57 printk(KERN_DEBUG "kgdb name(%d): %s, %d, %d\n", len, name, count, z);

(gdb) hbreak 58

Hardware assisted breakpoint 2 at 0x8950: file arch/blackfin/kernel/kgdb_test.c, line 58.

(gdb)

Case 6 ...PASS

info b

Num Type Disp Enb Address What

1 breakpoint keep y 0x0000892e in kgdb_test at arch/blackfin/kernel/kgdb_test.c:57

breakpoint already hit 1 time

2 hw breakpoint keep y 0x00008950 in kgdb_test at arch/blackfin/kernel/kgdb_test.c:58

Case 7 ...PASS

(gdb) list

52 #endif

55 int kgdb_test(char *name, int len, int count, int z)

56 {

57 printk(KERN_DEBUG "kgdb name(%d): %s, %d, %d\n", len, name, count, z);

58 count = z;

59 return count;

60 }

(gdb)

Case 8 ...PASS

#0 kgdb_test (name=0x11294c "hello world!", len=12, count=85, z=16) at arch/blackfin/kernel/kgdb_test.c:57

Case 9 ...PASS

#1 0x00008980 in test_proc_output (buf=0x305f000 "") at arch/blackfin/kernel/kgdb_test.c:64

#2 0x000089aa in test_read_proc (page=0x305f000 "", start=0x3055e64, off=0, count=3072, eof=0x3055e68, data=0x0) at arch/blackfin/kernel/kgdb_test.c:80

#3 0x00071e64 in proc_file_read (file=<value optimized out>, buf=0x3168e90 "", nbytes=4096, ppos=0x3055eec) at fs/proc/generic.c:120

#4 0x0006e2d0 in proc_reg_read (file=<value optimized out>, buf=<value optimized out>, count=<value optimized out>, ppos=0x3055eec)

at fs/proc/inode.c:191

#5 0x0004442c in vfs_read (file=0xaf7cc0, buf=0x3168e90 "", count=4096, pos=0x3055eec) at fs/read_write.c:279

#6 0x00044664 in sys_read (fd=<value optimized out>, buf=<value optimized out>, count=4096) at fs/read_write.c:368

#7 0xffa008dc in system_call () at include/linux/rcuclassic.h:122

(gdb) c

Continuing.

cat /proc/kgdbtest

kgdb name(12): hello world!, 85, 16

Case 10 ...PASS

Breakpoint 2, kgdb_test (name=0x11294c "hello world!", len=12, count=85, z=16) at arch/blackfin/kernel/kgdb_test.c:58

58 count = z;

Case 11 ...PASS

(gdb) print z

$1 = 16

Case 12 ...PASS

(gdb) c

Continuing.

L1(before change) : data variable addr = 0xff800000, data value is 0

L1 : code function addr = 0xffa003a4

L1(after change) : data variable addr = 0xff800000, data val

Case 12 ...PASS

[New Thread 164]

[Switching to Thread 164]

Breakpoint 1, kgdb_test (name=0x11294c "hello world!", len=12, count=85, z=16) at arch/blackfin/kernel/kgdb_test.c:57

57 printk(KERN_DEBUG "kgdb name(%d): %s, %d, %d\n", len, name, count, z);

(gdb) hbreak kgdb_l1_test

Hardware assisted breakpoint 3 at 0xffa003a8: file arch/blackfin/kernel/kgdb_test.c, line 30.

Case 13 ...PASS

(gdb) break 33

Breakpoint 4 at 0xffa003fc: file arch/blackfin/kernel/kgdb_test.c, line 33.

Case 14 ...PASS

(gdb) c

Continuing.

Breakpoint 2, kgdb_test (name=0x11294c "hello world!", len=12, count=85, z=16) at arch/blackfin/kernel/kgdb_test.c:58

58 count = z;

(gdb) ue is 10

root:/> cat /proc/kgdbtest

kgdb name(12): hello world!, 85, 16

Case 14 ...PASS

Continuing.

Breakpoint 3, kgdb_l1_test () at arch/blackfin/kernel/kgdb_test.c:30

30 printk(KERN_ALERT "L1(before change) : data variable addr = 0x%p, data value is %d\n", &num1, num1);

(gdb) print num1

$2 = 10

Case 15 ...PASS

(gdb) c

Continuing.

Breakpoint 4, kgdb_l1_test () at arch/blackfin/kernel/kgdb_test.c:33

33 printk(KERN_ALERT "L1(after change) : data variable addr = 0x%p, data value is %d\n", &num1, num1);

(gdb) print num1

$3 = 20

Case 16 ...PASS

(gdb) L1(before change) : data variable addr = 0xff800000, data value is 10

L1 : code function addr = 0xffa003a4

x/1xw 0xff808010

0xff808010: Cannot access memory at address 0xff808010

Case 17 ...PASS

(gdb) set *0xff808020 = 23

Cannot access memory at address 0xff808020

Case 18 ...PASS

(gdb) x/1xw 0xffc00400

0xffc00400: 0x000d000d

Case 19 ...PASS

(gdb) set *0xffe08100=0x456

(gdb) x/1xw 0xffe08100

0xffe08100: 0x00000456

Case 20 ...PASS

(gdb) d 1

(gdb) d 2

(gdb) info break

Num Type Disp Enb Address What

3 hw breakpoint keep y 0xffa003a8 in kgdb_l1_test at arch/blackfin/kernel/kgdb_test.c:30

breakpoint already hit 1 time

4 breakpoint keep y 0xffa003fc in kgdb_l1_test at arch/blackfin/kernel/kgdb_test.c:33

Case 21 ...PASS

breakpoint already hit 1 time

(gdb) info reg

r0 0x14 20

r1 0x1f 31

r2 0xffffff68 -152

r3 0x1f 31

r4 0x37b9000 58429440

r5 0x0 0

r6 0x7fffffff 2147483647

r7 0x0 0

p0 0xa 0xa

p1 0x17dc18 0x17dc18

p2 0xff800000 0xff800000

p3 0x3168e90 0x3168e90

p4 0xc00 0xc00

p5 0x1000 0x1000

sp 0x3055dfc 0x3055dfc

fp 0x3055e0c 0x3055e0c

i0 0xf 15

i1 0x0 0

i2 0x11a5b8 1156536

i3 0x1b 27

m0 0x0 0

m1 0x0 0

m2 0x0 0

m3 0x0 0

b0 0x0 0

b1 0x0 0

b2 0x0 0

b3 0x0 0

l0 0x0 0

l1 0x0 0

l2 0x0 0

l3 0x0 0

a0x 0x0 0

a0w 0x0 0

a1x 0x0 0

a1w 0x0 0

astat 0x2002000 33562624

rets 0xffa003e6 0xffa003e6 <kgdb_l1_test+66>

lc0 0x7 7

lt0 0x310ce76 51433078

lb0 0x310ce7f 51433087

lc1 0x0 0

lt1 0x91ac8 596680

lb1 0x91ad8 596696

cycles 0x0 0

cycles2 0x0 0

usp 0x3168e4c 0x3168e4c

seqstat 0x62001 401409

syscfg 0x6 6

reti 0xffa003fe -6290434

retx 0x480 1152

retn 0x3055e00 50683392

rete 0x0 0

---Type <return> to continue, or q <return> to quit---

pc 0xffa003fc 0xffa003fc <kgdb_l1_test+88>

cc 0x0 0

text_addr 0x0 0

text_end_addr 0x0 0

data_addr 0x0 0

fdpic_exec 0x0 0

fdpic_interp 0x0 0

ipend 0x8030 32816

(gdb)

Case 22 ...PASS

(gdb) disassemble

Dump of assembler code for function kgdb_l1_test:

0xffa003a4 <kgdb_l1_test+0>: LINK 0xc; /* (12) */

0xffa003a8 <kgdb_l1_test+4>: P2.H = 0xff80; /* (-128) P2=0x0xff800000 <num1> */

0xffa003ac <kgdb_l1_test+8>: P2.L = 0x0; /* ( 0) P2=0x0xff800000 <num1> */

0xffa003b0 <kgdb_l1_test+12>: R2 = [P2];

0xffa003b2 <kgdb_l1_test+14>: R0.H = 0x11; /* ( 17) R0=0x0x110000 <fib_net_exit+4>(1114112) */

0xffa003b6 <kgdb_l1_test+18>: R0.L = 0x2880; /* (10368) R0=0x0x112880(1124480) */

0xffa003ba <kgdb_l1_test+22>: R1.H = 0xff80; /* (-128) R1=0x0xff800000 <num1>(-8388608) */

0xffa003be <kgdb_l1_test+26>: R1.L = 0x0; /* ( 0) R1=0x0xff800000 <num1>(-8388608) */

0xffa003c2 <kgdb_l1_test+30>: P2.H = 0x1; /* ( 1) P2=0x0x10000 <copy_process+2476> */

0xffa003c6 <kgdb_l1_test+34>: P2.L = 0x1258; /* (4696) P2=0x0x11258 <printk> */

0xffa003ca <kgdb_l1_test+38>: CALL (P2);

0xffa003cc <kgdb_l1_test+40>: R0.H = 0x11; /* ( 17) R0=0x0x112880(1124480) */

0xffa003d0 <kgdb_l1_test+44>: R0.L = 0x28c4; /* (10436) R0=0x0x1128c4(1124548) */

0xffa003d4 <kgdb_l1_test+48>: R1.H = 0xffa0; /* (-96) R1=0x0xffa00000 <ret_from_fork>(-6291456) */

0xffa003d8 <kgdb_l1_test+52>: R1.L = 0x3a4; /* (932) R1=0x0xffa003a4 <kgdb_l1_test>(-6290524) */

0xffa003dc <kgdb_l1_test+56>: P2.H = 0x1; /* ( 1) P2=0x0x11258 <printk> */

0xffa003e0 <kgdb_l1_test+60>: P2.L = 0x1258; /* (4696) P2=0x0x11258 <printk> */

0xffa003e4 <kgdb_l1_test+64>: CALL (P2);

0xffa003e6 <kgdb_l1_test+66>: P2.H = 0xff80; /* (-128) P2=0x0xff801258 */

0xffa003ea <kgdb_l1_test+70>: P2.L = 0x0; /* ( 0) P2=0x0xff800000 <num1> */

0xffa003ee <kgdb_l1_test+74>: R0 = [P2];

0xffa003f0 <kgdb_l1_test+76>: R0 += 0xa; /* ( 10) */

0xffa003f2 <kgdb_l1_test+78>: P2.H = 0xff80; /* (-128) P2=0x0xff800000 <num1> */

0xffa003f6 <kgdb_l1_test+82>: P2.L = 0x0; /* ( 0) P2=0x0xff800000 <num1> */

0xffa003fa <kgdb_l1_test+86>: [P2] = R0;

0xffa003fc <kgdb_l1_test+88>: P2.H = 0xff80; /* (-128) P2=0x0xff800000 <num1> */

0xffa00400 <kgdb_l1_test+92>: P2.L = 0x0; /* ( 0) P2=0x0xff800000 <num1> */

Case 22 ...PASS

0xffa00404 <kgdb_l1_test+96>: R2 = [P2];

0xffa00406 <kgdb_l1_test+98>: R0.H = 0x11; /* ( 17) R0=0x0x1128c4(1124548) */

0xffa0040a <kgdb_l1_test+102>: R0.L = 0x28e8; /* (10472) R0=0x0x1128e8(1124584) */

0xffa0040e <kgdb_l1_test+106>: R1.H = 0xff80; /* (-128) R1=0x0xff8003a4(-8387676) */

0xffa00412 <kgdb_l1_test+110>: R1.L = 0x0; /* ( 0) R1=0x0xff800000 <num1>(-8388608) */

0xffa00416 <kgdb_l1_test+114>: P2.H = 0x1; /* ( 1) P2=0x0x10000 <copy_process+2476> */

0xffa0041a <kgdb_l1_test+118>: P2.L = 0x1258; /* (4696) P2=0x0x11258 <printk> */

0xffa0041e <kgdb_l1_test+122>: CALL (P2);

0xffa00420 <kgdb_l1_test+124>: UNLINK;

0xffa00424 <kgdb_l1_test+128>: RTS;

End of assembler dump.

(gdb)

Dump of assembler code for function kgdb_l1_test:

0xffa003a4 <kgdb_l1_test+0>: LINK 0xc; /* (12) */

0xffa003a8 <kgdb_l1_test+4>: P2.H = 0xff80; /* (-128) P2=0x0xff801258 */

0xffa003ac <kgdb_l1_test+8>: P2.L = 0x0; /* ( 0) P2=0x0xff800000 <num1> */

0xffa003b0 <kgdb_l1_test+12>: R2 = [P2];

0xffa003b2 <kgdb_l1_test+14>: R0.H = 0x11; /* ( 17) R0=0x0x1128e8(1124584) */

0xffa003b6 <kgdb_l1_test+18>: R0.L = 0x2880; /* (10368) R0=0x0x112880(1124480) */

0xffa003ba <kgdb_l1_test+22>: R1.H = 0xff80; /* (-128) R1=0x0xff800000 <num1>(-8388608) */

0xffa003be <kgdb_l1_test+26>: R1.L = 0x0; /* ( 0) R1=0x0xff800000 <num1>(-8388608) */

0xffa003c2 <kgdb_l1_test+30>: P2.H = 0x1; /* ( 1) P2=0x0x10000 <copy_process+2476> */

0xffa003c6 <kgdb_l1_test+34>: P2.L = 0x1258; /* (4696) P2=0x0x11258 <printk> */

0xffa003ca <kgdb_l1_test+38>: CALL (P2);

0xffa003cc <kgdb_l1_test+40>: R0.H = 0x11; /* ( 17) R0=0x0x112880(1124480) */

0xffa003d0 <kgdb_l1_test+44>: R0.L = 0x28c4; /* (10436) R0=0x0x1128c4(1124548) */

0xffa003d4 <kgdb_l1_test+48>: R1.H = 0xffa0; /* (-96) R1=0x0xffa00000 <ret_from_fork>(-6291456) */

0xffa003d8 <kgdb_l1_test+52>: R1.L = 0x3a4; /* (932) R1=0x0xffa003a4 <kgdb_l1_test>(-6290524) */

0xffa003dc <kgdb_l1_test+56>: P2.H = 0x1; /* ( 1) P2=0x0x11258 <printk> */

0xffa003e0 <kgdb_l1_test+60>: P2.L = 0x1258; /* (4696) P2=0x0x11258 <printk> */

0xffa003e4 <kgdb_l1_test+64>: CALL (P2);

0xffa003e6 <kgdb_l1_test+66>: P2.H = 0xff80; /* (-128) P2=0x0xff801258 */

0xffa003ea <kgdb_l1_test+70>: P2.L = 0x0; /* ( 0) P2=0x0xff800000 <num1> */

0xffa003ee <kgdb_l1_test+74>: R0 = [P2];

0xffa003f0 <kgdb_l1_test+76>: R0 += 0xa; /* ( 10) */

0xffa003f2 <kgdb_l1_test+78>: P2.H = 0xff80; /* (-128) P2=0x0xff800000 <num1> */

0xffa003f6 <kgdb_l1_test+82>: P2.L = 0x0; /* ( 0) P2=0x0xff800000 <num1> */

0xffa003fa <kgdb_l1_test+86>: [P2] = R0;

0xffa003fc <kgdb_l1_test+88>: P2.H = 0xff80; /* (-128) P2=0x0xff800000 <num1> */

0xffa00400 <kgdb_l1_test+92>: P2.L = 0x0; /* ( 0) P2=0x0xff800000 <num1> */

0xffa00404 <kgdb_l1_test+96>: R2 = [P2];

0xffa00406 <kgdb_l1_test+98>: R0.H = 0x11; /* ( 17) R0=0x0x1128c4(1124548) */

0xffa0040a <kgdb_l1_test+102>: R0.L = 0x28e8; /* (10472) R0=0x0x1128e8(1124584) */

0xffa0040e <kgdb_l1_test+106>: R1.H = 0xff80; /* (-128) R1=0x0xff8003a4(-8387676) */

0xffa00412 <kgdb_l1_test+110>: R1.L = 0x0; /* ( 0) R1=0x0xff800000 <num1>(-8388608) */

0xffa00416 <kgdb_l1_test+114>: P2.H = 0x1; /* ( 1) P2=0x0x10000 <copy_process+2476> */

0xffa0041a <kgdb_l1_test+118>: P2.L = 0x1258; /* (4696) P2=0x0x11258 <printk> */

0xffa0041e <kgdb_l1_test+122>: CALL (P2);

0xffa00420 <kgdb_l1_test+124>: UNLINK;

0xffa00424 <kgdb_l1_test+128>: RTS;

End of assembler dump.

(gdb) si

info reg

0xffa00400 33 printk(KERN_ALERT "L1(after change) : data variable addr = 0x%p, data value is %d\n", &num1, num1);

(gdb) info reg

r0 0x14 20

r1 0x1f 31

r2 0xffffff68 -152

r3 0x1f 31

r4 0x37b9000 58429440

r5 0x0 0

r6 0x7fffffff 2147483647

r7 0x0 0

p0 0xa 0xa

p1 0x17dc18 0x17dc18

p2 0xff800000 0xff800000

p3 0x3168e90 0x3168e90

p4 0xc00 0xc00

p5 0x1000 0x1000

sp 0x3055dfc 0x3055dfc

fp 0x3055e0c 0x3055e0c

i0 0xf 15

i1 0x0 0

i2 0x11a5b8 1156536

i3 0x1b 27

m0 0x0 0

m1 0x0 0

m2 0x0 0

m3 0x0 0

b0 0x0 0

b1 0x0 0

b2 0x0 0

b3 0x0 0

l0 0x0 0

l1 0x0 0

l2 0x0 0

l3 0x0 0

a0x 0x0 0

a0w 0x0 0

a1x 0x0 0

a1w 0x0 0

astat 0x2002000 33562624

rets 0xffa003e6 0xffa003e6 <kgdb_l1_test+66>

lc0 0x7 7

lt0 0x310ce76 51433078

lb0 0x310ce7f 51433087

lc1 0x0 0

lt1 0x91ac8 596680

lb1 0x91ad8 596696

cycles 0x0 0

cycles2 0x0 0

usp 0x3168e4c 0x3168e4c

seqstat 0x62010 401424

syscfg 0x6 6

reti 0xffa00400 -6290432

retx 0x480 1152

retn 0x3055e00 50683392

rete 0x0 0

---Type <return> to continue, or q <return> to quit---

pc 0xffa00400

Case 24 ...PASS

SI case pass!

0xffa00400 <kgdb_l1_test+92>

cc 0x0 0

text_addr 0x0 0

text_end_addr 0x0 0

data_addr 0x0 0

fdpic_exec 0x0 0

fdpic_interp 0x0 0

ipend 0x8030 32816

(gdb)

(gdb) print len

$4 = 0

Case 25 ...PASS

(gdb) c

Continuing.

Double Fault

Kernel OOPS in progress

Deferred Exception context

CURRENT PROCESS:

COMM=cat PID=164

CPU = 0

TEXT = 0x03100040-0x0314b0e0 DATA = 0x0314b0e4-0x0315eaf4

BSS = 0x0315eaf4-0x03160464 USER-STACK = 0x03169f78

return address: [0x000095da]; contents of:

0x000095b0: 6501 5281 4e2a 320a 3200 e0b2 1003 0258

0x000095c0: 0270 0010 6302 5410 67f9 5451 6501 5281

0x000095d0: 4e2a 320a 3200 e0b2 1002 [0268] 0010 0000

0x000095e0: 6302 5410 67f9 5451 6501 5281 4e2a 320a

SEQUENCER STATUS: Not tainted

SEQSTAT: 00062027 IPEND: ffe02108 SYSCFG: 0006

EXCAUSE : 0x27

physical IVG3 asserted : <0xffa0076c> { _trap + 0x0 }

phy

######## Kgdb stress test: this is the 3 round.#########

spawn /bin/sh

uclinux50-bf537-ad9960-ad1836:~/work/cruise/checkouts/uclinux-dist/testsuites/kgdb> ps aux | grep bfin-uclinux-gdb

test 13461 0.6 6.0 35436 30460 pts/4 Ss+ 07:14 0:00 bfin-uclinux-gdb /home/test/work/cruise/checkouts/uclinux-dist/linux-2.6.x/vmlinux

test 13521 0.0 0.1 3064 732 pts/5 S+ 07:15 0:00 grep bfin-uclinux-gdb

uclinux50-bf537-ad9960-ad1836:~/work/cruise/checkouts/uclinux-dist/testsuites/kgdb> kill -9 `pidof bfin-uclinux-gdb`

uclinux50-bf537-ad9960-ad1836:~/work/cruise/checkouts/uclinux-dist/testsuites/kgdb>

Last passed time: 2009_Feb_26_18_41, ucdist ver: 7801, kernel ver: 6130

Case 25 ...FAIL

Follow-ups

--- Sonic Zhang 2009-03-24 04:57:37

Can't replicate on SVN trunk

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