uClinux .data segment in SDRAM?

<div class='quotetop'>QUOTE </div>

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I think the zones_size[ZONE_NORMAL] shall be the actual size of your sram. and the hole for DMA_ZONE shall be 1G-128M. Of course all sizes are in pages. But I have never tried this, so not quite sure about this.[/b]

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I think I&#39;m getting closer --- new panic message below. It seems to now be recognizing the 128MB in ZONE_DMA, and 16MB in ZONE_NORMAL, but it&#39;s still hiccupping near the end of the boot process. Any thoughts? Thanks again.

Ryan

uClinux/Nios II

Altera Nios II support © 2004 Microtronix Datacom Ltd.

KERNEL -> TEXT=0x40000000-0x40132cb0 DATA=0x40132cb0-0x40160000 BSS=0x40179350-0

x4017937d

KERNEL -> MEM=0x4017a000-0x41000000 STACK=0x41000000-0x41000000

setup_arch: No persistant network settings signature at 43FF0000

start_mem is 0x4017a000

virtual_end is 0x41000000

Built 1 zonelists

Kernel command line: root=/dev/mtdblock0 ro

PID hash table entries: 1024 (order: 10, 16384 bytes)

Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)

Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)

Mem_init: start=4017a000, end=41000000

Memory available: 6264k/16384k RAM, 0k/0k ROM (1227k kernel code, 281k data)

Mount-cache hash table entries: 512 (order: 0, 4096 bytes)

NET: Registered protocol family 16

Serial: JTAG UART driver $Revision: 1.3 $

ttyJ0 at MMIO 0xc4000808 (irq = 0) is a jtag_uart

RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize

Loading Quantapoint LIDAR Processor Driver v. 0.1

smc_probe: 75000 Khz Nios

SMSC LAN91C111 Driver (v2.1), (Linux Kernel 2.6)

eth0: SMC91C11xFD(rev:1) at 0x4400a000 IRQ:2 MEMSIZE:8192b NOWAIT:0 ADDR: 00:07:

ed:00:00:00

smc_probe: 75000 Khz Nios

Using anticipatory io scheduler

Microtronix map: Found 1 x16 devices at 0x0 in 16-bit bank

Amd/Fujitsu Extended Query Table at 0x0040

Microtronix map: CFI does not contain boot bank location. Assuming top.

number of CFI chips: 1

cfi_cmdset_0002: Disabling erase-suspend-program due to code brokenness.

cmdlinepart partition parsing not available

RedBoot partition parsing not available

Using Microtronix development partition definition

Creating 2 MTD partitions on "Microtronix map":

0x00200000-0x00800000 : "romfs"

0x00000000-0x00200000 : "loader/kernel"

NET: Registered protocol family 2

IP: routing cache hash table of 8192 buckets, 64Kbytes

TCP: Hash tables configured (established 524288 bind 65536)

NET: Registered protocol family 1

NET: Registered protocol family 17

VFS: Mounted root (romfs filesystem) readonly.

Freeing unused kernel memory: 48k freed (0x40160000 - 0x4016b000)

Warning: unable to open an initial console.

sh: page allocation failure. order:5, mode:0xd0

Stack from 40b4fd58:<0>

<0> 00000005<0> 4002dc2c<0> 00000000<0> 00000010<0> 00000000<0> 00000001<

0> 000000d0<0> 000000d0<0>

<0> 0000000d<0> 40182e6c<0> 40182e60<0> 409f00a0<0> 40182e60<0> 40a06400<

0> 4002dc5c<0> 40031a6c<0>

<0> 00000000<0> 40032318<0> 00000011<0> 00009b50<0> 00004036<0> 4013582c<

0> 4017e620<0> 00000001<0>

<0> 000119b6<0> 00000001<0> 40031f68<0> 00000000<0> 40037cec<0> deadbe00<

0> 00000000<0> 00000000<0>

<0> 00000080<0> 4099ccc0<0> 00000001<0> 0000c514<0> 000012b0<0> 00000004<

0> 40a2dba0<0> ffffe000<0>

<0> 4004a060<0> 40047644<0> 00006873<0> 00000000<0> 40b4e000<0> 00000000<

0> 00000002<0> 401353b0<0>

Call Trace:<0>

<0> [<400681c0>]<0> [<4002d698>]<0> [<40047fe0>]<0> [<40048238>]<0>

<0> [<40004558>]<0> [<400030d0>]<0> [<40002b70>]<0>

Allocation of length 72118 from process 12 failed

DMA per-cpu:

cpu 0 hot: low 16, high 48, batch 8

cpu 0 cold: low 0, high 16, batch 8

Normal per-cpu:

cpu 0 hot: low 2, high 6, batch 1

cpu 0 cold: low 0, high 2, batch 1

HighMem per-cpu: empty

Free pages: 204kB (0kB HighMem)

Active:3 inactive:0 dirty:0 writeback:0 unstable:0 free:51 slab:396 mapped:0 pag

etables:0

DMA free:0kB min:340kB low:680kB high:1020kB active:0kB inactive:0kB present:131

072kB

protections[]: 0 0 0

Normal free:204kB min:40kB low:80kB high:120kB active:12kB inactive:0kB present:

16384kB

protections[]: 0 0 0

HighMem free:0kB min:128kB low:256kB high:384kB active:0kB inactive:0kB present:

0kB

protections[]: 0 0 0

DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB

0*4096kB = 0kB

Normal: 7*4kB 8*8kB 5*16kB 1*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048

kB 0*4096kB = 204kB

HighMem: empty

Unable to allocate RAM for process text/data, errno 12

munmap of non-mmaped memory by process 12 (sh): 4017e640

Kernel panic - not syncing: Attempted to kill init!