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Message
From: stlim0727@h...
Date: Thu, 30 Oct 2003 08:32:12 +0100
Subject: Re: [openrisc] or1k/or32 linux 2.4 port
Would you please let me access your kernel source?
I was just to port linux 2.6 to or32 and your linux 2.4 port
would be very helpful.
Regards,
Thomas.
----- Original Message -----
From: Matjaz Breskvar <phoenix@o... >
To: openrisc@o...
Date: Tue, 28 Oct 2003 01:38:11 +0100
Subject: [openrisc] or1k/or32 linux 2.4 port
>
>
> Hello!
>
> I'd like to update you all on progress of or32 linux port. I'm
> happy
> to report it can run userspace programs, though there is still some
> work
> to be done. Since picture is worth more than a tousand words here
> is a 'screenshot' of linux running a buggy userspace code in
> or1ksim.
>
> Linux version 2.4.20 (phoenix@d... ) (gcc version 3.2.3)
> #1605 Tue
> Oct 28 01:03:17 CET 2003
> Setting up paging and PTEs.
> On node 0 totalpages: 1024
> zone(0): 1024 pages.
> zone(1): 0 pages.
> zone(2): 0 pages.
> dtlb_miss_handler c0001448
> itlb_miss_handler c0001548
> Linux/or32 port 2003 OpenCores
> Kernel command line: root=/dev/ram
> Calibrating delay loop... 2.15 BogoMIPS
> Memory: 5904k/8192k available (1540k kernel code, 2288k reserved,
> 184k data,
> 8k init, 0k highmem)
> Dentry cache hash table entries: 1024 (order: 0, 8192 bytes)
> Inode cache hash table entries: 1024 (order: 0, 8192 bytes)
> Mount-cache hash table entries: 1024 (order: 0, 8192 bytes)
> Buffer-cache hash table entries: 2048 (order: 0, 8192 bytes)
> Page-cache hash table entries: 2048 (order: 0, 8192 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
> __vmalloc__ :: vmalloc() :: current c0268000, d0000000, size b740
> Serial driver version 5.05c (2001-07-08) with no serial options
> enabled
> RAMDISK driver initialized: 16 RAM disks of 1024K size 1024
> blocksize
> loop: loaded (max 8 devices)
> PPP generic driver version 2.4.2
> PPP Deflate Compression module registered
> NET4: Linux TCP/IP 1.0 for NET4.0
> IP Protocols: ICMP, UDP, TCP, IGMP
> IP: routing cache hash table of 1024 buckets, 8Kbytes
> TCP: Hash tables configured (established 1024 bind 2048)
> IPv4 over IPv4 tunneling driver
> NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
> RAMDISK: ext2 filesystem found at block 0
> RAMDISK: Loading 256 blocks [1 disk] into ram disk... done.
> Freeing initrd memory: 256k freed
> VFS: Mounted root (ext2 filesystem) readonly.
> Freeing unused kernel memory: 8k freed
> USERSPACE: SIGSEGV (current c01e0000, pid 7)
> PC: 01000268 SR: 00008266 SP: bfffff24
> GPR00: 00000000 GPR01: bfffff24 GPR02: 00000007 GPR03: 00000000
> GPR04: 00000000 GPR05: 00000000 GPR06: 00000000 GPR07:
00000000
> GPR08: 00000000 GPR09: 01000264 GPR10: 00000000 GPR11:
00000000
> GPR12: 00000000 GPR13: 00000000 GPR14: 00000000 GPR15:
00000000
> GPR16: 00000000 GPR17: 00000000 GPR18: 00000000 GPR19:
00000000
> GPR20: 00000000 GPR21: 00000000 GPR22: 00000000 GPR23:
00000000
> GPR24: 00000000 GPR25: 00000000 GPR26: 00000000 GPR27:
00000000
> GPR28: 00000000 GPR29: 00000000 GPR30: 00000000 GPR31:
00000000
> RES: 00000000 oGPR3: 00000000 dummy: 0000083c
>
> Userspace program is very simple (using sys_fork, sys_pause) and
> segfaults
> due to invalid access (register dump is done when userspace code
> segafults):
>
> ---
> r2 =00000007 EA =bfffff20 PA =001b9f20 010000c4 l.lwz r2,0x0(r1)
> r9 =01000264 010000c8 l.jr r9
> r1 =bfffff24 r1 =bfffff24 010000cc l.addi r1,r1,0x4
> r3 =00000000 r11=00000000 01000264 l.ori r3,r11,0
> EA =00000003 PA =00000000 r3 =00000000 01000268 l.sw -4(r2),r3
> ---
>
> regards,
> p.
>
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