Re: IRQ = 0 works?
From: Lavery (llavery_at_netvigator.com)
Date: 02/10/04
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Date: Tue, 10 Feb 2004 23:01:20 +0800
Hi all,
Here is the screen dump. This one showing a case where "ls -l" fails while
"ls" works. Sometimes (after running some irrelevant commands such as
export, touch, cd, mkdir etc) both "ls" and "ls -l" work, sometimes "ls -l"
works while "ls works". Please share with me with anyone has any idea.
mpc85xx_init(): exit
id mach(): done
Memory CAM mapping: CAM0=16Mb, CAM1=16Mb, CAM2=0Mb residual: 0Mb
Remove the init RAM disk from the available memory
MMU:hw init
MMU:mapin
MMU:mapin_ram done
MMU:setio
MMU:exit
Linux version 2.4.21-rc5-moto-pre4 (r55289@NCSG-SYS-DSGN1) (gcc version
3.0.1) 4
setup_arch: enter
setup_arch: bootmem
arch: exit
On node 0 totalpages: 512
zone(0): 512 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line:
time_init: decrementer frequency = 20.000000 MHz
Calibrating delay loop... 13.20 BogoMIPS
Memory: 21568k available (1536k kernel code, 640k data, 256k init, 0k
highmem)
Dentry cache hash table entries: 8192 (order: 0, 65536 bytes)
Inode cache hash table entries: 8192 (order: 0, 65536 bytes)
Mount cache hash table entries: 8192 (order: 0, 65536 bytes)
Buffer-cache hash table entries: 16384 (order: 0, 65536 bytes)
Page-cache hash table entries: 16384 (order: 0, 65536 bytes)
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
Journalled Block Device driver loaded
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ
SERIAL_PCI ed
A
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
loop: loaded (max 8 devices)
Intel(R) PRO/1000 Network Driver - version 5.0.43-k1
Copyright (c) 1999-2003 Intel Corporation.
PPP generic driver version 2.4.2
PPP Deflate Compression module registered
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
RAMDISK: Compressed image found at block 0
Freeing initrd memory: 8192k freed
VFS: Mounted root (ext2 filesystem).
Freeing unused kernel memory:
init started: BusyBox v1.00-pre5 (2004.01.27-06:40+0000) multi-call binary
BusyBox v1.00-pre5 (2004.01.27-06:40+0000) Built-in shell (ash)
Enter 'help' for a list of built-in commands.
# ls -l
ls: ./loou+found: No such file or directory
# ls
bin etc mnt sbin usr
dev lost+found proc tmp var
#
Many thanks.
Lavery
"Lavery" <llavery@netvigator.com> wrote in message
news:c081mp$7824@imsp212.netvigator.com...
> Hi,
>
> I am trying to port linux kernel 2.4.20 to a new powerpc Book E
> processor/chip. I used the 16550A UART driver (in drivers/char/serial.c)
> with IRQ = 0 (no interrupt). I have tried to use different values for
> rs_strobe_time and the kernel prints out messages correctly. My problem
is
> that when I tried to do "ls" or "export" in user mode, sometimes strange
> characters (or incorrect content) print out. Anyone has any idea? I have
> been struggling with this problem for over 2 months. I don't have a
screen
> dump with me now. I will try to post it tomorrow.
>
> Thx in advance.
>
> Best regards,
> Lavery
>
>
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