Re: MBX (MPC860) Question

Re: MBX (MPC860) Question

[kd]

Hello,

I am having similar problems with a custom mpc823 board that we are trying
to port LinuxPPC to.
We have 4Mb of ram and 2Mb of Flashrom. We load the kernel from the
Flashrom and attemp to
mount the root file system over NFS. I am wondering if this could be
related to memorysize, i.e
we are seeing some kind of memory starvation? I will try to find a bigger
simm and try with
bigger memory.

Below is the output of the boot process.

loaded at:     FE100000 FE111BAC
relocated to:  00100000 00111BAC
board data at: 001001C4 001001E0
relocated to:  00200100 0020011C
zimage at:     FE120000 FE16B357
avail ram:     00201000 00400000

Linux/PPC load: root=/dev/nfs nfsaddrs=192.168.145.220:192.168.145.222
nfsroot=1
92.168.145.222:/usr/local/embedded
Uncompressing Linux...done.
Now booting the kernel
Linux version 2.2.5 (kd@linux) (gcc version egcs-2.91.60 19981201
(egcs-1.1.1
release)) #81 Wed May 12 20:04:59 GMT 1999
Boot arguments:
time_init: decrementer frequency = 93750000/60
Calibrating delay loop... 24.27 BogoMIPS
Memory: 3176k available (596k kernel code, 292k data, 32k init)
[c0000000,c04000
00]
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.2
Based upon Swansea University Computer Society NET3.039
NET4: Unix domain sockets 1.0 for Linux NET4.0.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
Starting kswapd v 1.5
CPM UART driver version 0.02
ttyS00 at 0x0280 is a SMC
eth0: CPM ENET Version 0.2, 00:20:94:21:ff:f0
Sending BOOTP requests....page fault in interrupt handler, addr=64
NIP: C0004004 XER: 2000FF11 LR: C0003FB8 REGS: c00edcc0 TRAP: 0300
MSR: 00001032 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 11
TASK = c00ec000[1] 'swapper' mm->pgd c00a5000 Last syscall: 120
last math 00000000
GPR00: C008F424 C00EDD70 C00EC000 00000000 00000005 00000000 00000001
C00E6680
GPR08: FF002830 C008F427 00000014 C00AA9F4 82401010 FFFFFFFF 00000000
FF0023D0
GPR16: 00000003 00000000 81000900 01000000 00001032 000EDDC0 00000000
C000249C
GPR24: C00040A0 000046EB 00100000 00000000 00000000 C00EDDD0 00000005
C00BD164
Instruction DUMP: 801f0000  2c000000  41820074 <801f0004> 74082000
40820008  48
0026b9  801f0000  7fc3f378
page fault in interrupt handler, addr=64
NIP: C0004004 XER: 2000FF11 LR: C0003FB8 REGS: c00edcc0 TRAP: 0300
MSR: 00001032 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 11
TASK = c00ec000[1] 'swapper' mm->pgd c00a5000 Last syscall: 120
last math 00000000
GPR00: C008F424 C00EDD70 C00EC000 00000000 00000005 00000000 00000001
C00E6680
GPR08: FF002830 C008F424 00000014 C00AA9F4 82401010 FFFFFFFF 00000000
FF0023D0
GPR16: 00000003 00000000 81000900 01000000 00001032 000EDDC0 00000000
C000249C
GPR24: C00040A0 000046EB 00100000 00000000 00000000 C00EDDD0 00000005
C00BD164
Instruction DUMP: 801f0000  2c000000  41820074 <801f0004> 74082000
40820008  48
0026b9  801f0000  7fc3f378
......... timed out!
IP-Config: Auto-configuration of network failed.
dev_close: bug eth0 still running
Root-NFS: No NFS server available, giving up.
VFS: Unable to mount root fs via NFS, trying floppy.
VFS: Cannot open root device 02:00
Kernel panic: VFS: Unable to mount root fs on 02:00
Rebooting in 180 seconds..



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MBX (MPC860) Question

[KiPyo Ryu]

Hi,

I am useing the MPC860 MBX Board (have only 4MB on-board memory) with
FDD and IBM 4GB HDD (2.5").

I will work 'mbxroot.full.tgz' file at
'ftp://linuxppc.cs.nmt.edu/pub/linuxppc/embedded'.

I plan to boot from NFS after compile at PowerPC 603 machine.

I have some question following:

(1) Can I boot from floppy of the MBX system?
if, yes. what is the method?

(2) I would like to know configuration for network booting, and
after network booting, can I install linux to the HDD of MBX system?
if, yes. what is the method?

(3) Can I use the MBX system for self-hosted development system?

(4) I compiled linux 2.2.6 for MBX system at PowerPC 603, then I tried
to
network booting, but didn't booting. what is the problem.

following is the console display message.

==================================================================
EPPC-Bug>pl 20 0
Network Booting from: MPC860, Controller 20, Device 0
Loading: /sys/mbxroot/zImage

Client IP Address      = 210.96.178.73
Server IP Address      = 210.96.178.72
Gateway IP Address     = 0.0.0.0
Subnet IP Address Mask = 255.255.255.0
Boot File Name         = /sys/mbxroot/zImage
Argument File Name     =

Bytes Received =&512723, Bytes Loaded =&512723
Bytes/Second   =&256361, Elapsed Time =2 Second(s)
loaded at:     00210000 0030E42C
relocated to:  00100000 001FE42C
board data at: 003F4558 003F4580
relocated to:  00200100 00200128
zimage at:     00216000 0027BCB3
avail ram:     0030E42C 00400000

Linux/PPC load: root=/dev/nfs nfsaddrs=210.96.178.73:210.96.178.72
nfsroot=210.9
6.178.72:/sys/mbxroot
Uncompressing Linux...done.
Now booting the kernel
Linux version 2.2.5 (root@linuxppc.sei.co.kr) (gcc version egcs-2.90.25
980302 (
egcs-1.0.2 prerelease)) #1 Wed Apr 28 19:18:22 KST 1999
Boot arguments: root=/dev/nfs nfsaddrs=210.96.178.73:210.96.178.72
nfsroot=210.9
6.178.72:/sys/mbxroot root=/dev/nfs nfsroot=/sys/mbxroot
time_init: decrementer frequency = 150000000/60
Calibrating delay loop... 39.63 BogoMIPS
Memory: 2968k available (748k kernel code, 336k data, 44k init)
[c0000000,c04000
00]
POSIX conformance testing by UNIFIX
PCI: Probing PCI hardware
Linux NET4.0 for Linux 2.2
Based upon Swansea University Computer Society NET3.039
NET4: Unix domain sockets 1.0 for Linux NET4.0.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
Starting kswapd v 1.5
Serial driver version 4.27 with no serial options enabled
ttyS00 at 0x03f8 (irq = 4) is a 16550A
ttyS01 at 0x02f8 (irq = 3) is a 16550A
CPM UART driver version 0.02
ttyS00 at 0x0280 is a SMC
ttyS01 at 0x0380 is a SMC
ttyS02 at 0x0100 is a SCC
ttyS03 at 0x0200 is a SCC
W82C105: IDE controller on PCI bus 00 dev 19
W82C105: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0x1000020-0x1000027, BIOS settings: hda:pio, hdb:pio

SL82C105 command word: 5
IDE timing: 00000909, resetting to PIO0 timing
    ide1: BM-DMA at 0x1000028-0x100002f, BIOS settings: hdc:pio, hdd:pio

SL82C105 command word: 5
IDE timing: 000003e4, resetting to PIO0 timing
hda: IBM-DKLA-24320, ATA DISK drive
hda: IRQ probe failed (0)
hdb: IRQ probe failed (0)
hdb: IRQ probe failed (0)
hdf: no response (status = 0xff), resetting drive
hdf: no response (status = 0xff)
hdg: probing with STATUS(0xc1) instead of ALTSTATUS(0xff)
hdg: probing with STATUS(0xc1) instead of ALTSTATUS(0xff)
hdg: no response (status = 0xa1), resetting drive
hdg: probing with STATUS(0xc1) instead of ALTSTATUS(0xff)
hdg: no response (status = 0xa1)
hdh: probing with STATUS(0xc1) instead of ALTSTATUS(0xff)
hdh: probing with STATUS(0xc1) instead of ALTSTATUS(0xff)
hdh: no response (status = 0xa1), resetting drive
hdh: probing with STATUS(0xc1) instead of ALTSTATUS(0xff)
hdh: no response (status = 0xa1)
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hda: IBM-DKLA-24320, 4126MB w/460kB Cache, CHS=8944/15/63, (U)DMA
NIP: C00EB4B4 XER: 20000000 LR: C00EB4A0 REGS: c011dd90 TRAP: 0300
MSR: 00009032 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11
TASK = c011c000[1] 'swapper' mm->pgd c00cf000 Last syscall: 120
last math 00000000
GPR00: 00028004 C011DE80 C011C000 C00DE7B4 FFFFFFFF 00000002 C00DE819
C005FF30
GPR08: C00B8E4C C00B8E9C C005FD94 C005FC88 C011DE40 00000000 00000000
00000000
GPR16: 00000000 00000000 00000000 00000000 00000000 003F4558 FA200A20
00000000
GPR24: 00000000 C03DF6E0 02200000 FA2009C0 00200000 00000000 C00E0000
C00E0000
Call backtrace:
C00EB4A0 C00EB448 C00E5724 C00E7B40 C00E2794 C00028E0 C0006A50
Instruction DUMP: 3f400220  54000732  901b0060 <a01a0952> 7c781b78
60000003  b0
1a0952  a01a0950  38600040
Kernel panic: kernel access of bad area pc c00eb4b4 lr c00eb4a0 address
2200952
tsk swapper/1
Rebooting in 180 seconds..
=======================================================================

Thanks.







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Re: MBX (MPC860) Question

[kd]

Hello again,

The solution for me was to unplug the hardwaredebugger. Then all page
faults stopped and everything
seems to be working.

A nice side effect is that the hardware seems to be runniing at least 3-4
times faster than with the dam thing connected. 8-)

K.D.



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