[#6395] Kgdb test fail after kernel update(2010)

[#6395] Kgdb test fail after kernel update

Submitted By: Vivi Li

Open Date

2010-12-03 03:31:59 Close Date

2011-01-04 21:29:25

Priority:

Medium Assignee:

Vivi Li

Status:

Closed Fixed In Release:

N/A

Found In Release:

2011R1 Release:

Category:

N/A Board:

N/A

Processor:

ALL Silicon Revision:

Is this bug repeatable?:

Yes Resolution:

Fixed

Uboot version or rev.:

Toolchain version or rev.:

latest trunk

App binary format:

N/A

Summary: Kgdb test fail after kernel update

Details:

Kgdb test fail after kernel update to 2.6.36.1.

Bellow is the log:

Starting Kernel at = 001a21fc

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 (35 KB free)

NET: Registered protocol family 16

Blackfin DMA Controller

stamp_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@7

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

debug-mmrs: setting up Blackfin MMR debugfs

msgmni has been set to 93

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: Blackfin on-chip Ethernet MAC driver, Version 1.1

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 2026-05-29 05:50:52 UTC (1780033852)

dma_alloc_init: dma_page @ 0x02905000 - 256 pages at 0x03f00000

Freeing unused kernel memory: 7228k 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 AnaloÏDevices 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 v1.17.4 (2010-11-28 05:37:05 GMT) hush - the humble shell

root:/> ^[[6nversion

kernel: Linux release 2.6.36.1-ADI-2011R1-pre-svn9514, build #28 Sun Nov 28 10:54:36 GMT 2010

toolchain: bfin-uclinux-gcc release gcc version 4.3.5 (ADI-trunk/svn-5013)

user-dist: release svn-9990, build #494 Sun Nov 28 10:53:28 GMT 2010

root:/> ^[[6nsuccessful boot attempt

************** STEP 3: Start KGDB TEST (ethernet)

ifconfig eth0 10.100.4.50

root:/> ^[[6nspawn bfin-uclinux-gdb /home/test/work/cruise/checkouts/uclinux-dist/linux-2.6.x/vmlinux

^[[?1034hGNU 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

target remote udp:10.100.4.50:6443

warning: The remote protocol may be unreliable over UDP.

Some events may be lost, rendering further debugging impossible.

Remote debugging using udp:10.100.4.50:6443

Case 2 ...PASS

Remote communication error: Connection refused.

(gdb) break kgdb_test

Remote communication error: Success.

(gdb) spawn /bin/sh

^[[?1034huclinux59-kernel-perf:~/work/cruise/checkouts/uclinux-dist/testsuites/kgdb> ps a ux | grep bfin-uclinux-gdb

test 20550 1.1 2.6 32984 26824 pts/2 Ss+ 10:56 0:00 bfin-uclinux-gdb /home/test/work/cruise/checkouts/uclinux-dist/linux-2.6.x/vmlinux

test 20565 0.0 0.0 3064 716 pts/3 R+ 10:56 0:00 grep bfin-uclinux-gdb

uclinux59-kernel-perf:~/work/cruise/checkouts/uclinux-dist/testsuites/kgdb> kill -9 `pidof bfin-uclinux-gdb`

uclinux59-kernel-perf:~/work/cruise/checkouts/uclinux-dist/testsuites/kgdb>

Last passed time: 2010_Oct_16_03_57, ucdist ver: 9856, kernel ver: 9205

Case 3 ...FAIL

KGDB TEST (ethernet) FAIL

Follow-ups

--- Vivi Li 2010-12-30 22:59:52

Configuration description is changed so CONFIG_KGDB is not selected. Test script

is updated.

Recheck the result later.

--- Sonic Zhang 2010-12-30 23:04:31

Not a bug. The kgdb test building script need to be updated according to the new

kernel config options.

--- Vivi Li 2011-01-04 21:29:25

Fixed and close.

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