Hi Ming,

 

It’s not obvious to me what the problem is as I don’t see any driver failures. Have you tried using a ramdisk and then seeing if the network is working before using NFS root? 

 

And I’m assuming you have used the NFS root before so you know that it’s good for sure.

 

I test on the ML405 with NFS root and haven’t seen this problem, but my setup is a little different.  I use DHCP rather than a static IP, but other than that it’s similar.

 

I’m assuming that you accidentally got 2 different powerup outputs in the message below as the 1st stops and a 2nd starts in the middle.

 

How long has it been since you pulled from the Xilinx Git tree?

 

Thanks,

John

 

From: linuxppc-embedded-bounces+john.linn=xilinx.com@ozlabs.org [mailto:linuxppc-embedded-bounces+john.linn=xilinx.com@ozlabs.org] On Behalf Of MingLiu
Sent: Tuesday, April 01, 2008 8:12 AM
To: linuxppc-embedded@ozlabs.org
Subject: xilinx Ml405 NFS mount problem

 

Dear friends,

I am bringing up my kernel from Xilinx git tree. Unfortunately I met some
problem when mounting the root file system. Here is the information
listed. I will appreciate a lot if someone can help me out of the trouble. 
Thanks a lot!
 
 
loaded at:     00400000 0059F19C
board data at: 0059D120 0059D19C
relocated to:  004050C8 00405144
zimage at:     00405F3F 0059C025
avail ram:     005A0000 08000000
 
Linux/PPC load: root=/dev/nfs
ip=192.168.0.4:192.168.0.3:192.168.0.3:255.255.255.0 rw
nfsroot=192.168.0.3:/home/mingliu/ml403_rootfs console=ttyUL0,38400
mem=32M
Uncompressing Linux...done.
Now booting the kernel
Linux version 2.6.24-rc8-xlnx-g1db182b8-dirty (mingliu@cca01) (gcc version
3.4.1) #7 Tue Apr 1 14:55:25 CEST 2008
Xilinx Generic PowerPC board support package (Xilinx ML405) (Virtex-4 FX)
Zone PFN ranges:
  DMA             0 ->     8192
  Normal       8192 ->     8192
  HighMem      8192 ->     8192
Movable zone start PFN for each node
early_node_map[1] active PFN ranges
    0:        0 ->     8192
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 8128
Kernel command line: root=/dev/nfs
ip=192.168.0.4:192.168.0.3:192.168.0.3:255.255.255.0 rw
nfsroot=192.168.0.3:/home/mingliu/ml403_rootfs console=ttyUL0,38400
mem=32M
Xilinx INTC #0 at 0x81800000 mapped to 0xFDFFF000
PID hash table entries: 128 (order: 7, 512 bytes)
Console: colour dummy device 80x25
Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
Memory: 28884k available (2552k kernel code, 944k data, 84k init, 0k highmem)
SLUB: Genslabs=11, HWalign=32, Order=0-1, MinObjects=4, CPUs=1, Nodes=1
Mount-cache hash table entries: 512
net_namespace: 64 bytes
NET: Registered protocol family 16
Registering device uartlite:0
Fixup MAC address for xilinx_lltemac:0
Registering device xilinx_lltemac:0
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 1024 (order: 1, 8192 bytes)
TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
TCP: Hash tables configured (established 1024 bind 1024)
TCP reno registered
sysctl table check failed: /kernel/l2cr .1.31 Missing strategy
Call Trace:
[c1c0fe50] [c0008b70] show_stack+0x40/0x194 (unreliable)
[c1c0fe90] [c003aed4] set_fail+0x68/0x80
[c1c0feb0] [c003b4ec] sysctl_check_table+0x600/0x77c
[c1c0fef0] [c003b4d4] sysctl_check_table+0x5e8/0x77c
[c1c0ff30] [c002605c] register_sysctl_table+0x64/0xb4
[c1c0ff50] [c034579c] register_ppc_htab_sysctl+0x18/0x2c
[c1c0ff60] [c034482c] kernel_init+0x94/0x2bc
[c1c0fff0] [c0004d58] kernel_thread+0x44/0x60
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
fuse init (API version 7.9)
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
uartlite.0: ttyUL0 at MMIO 0x84000003 (irq = 3) is a uartlite
console [ttyUL0] enabled
loop: module loaded
nbd: registered device at major 43
xilinx_lltemac xilinx_lltemac.0: MAC address is now  0: a:35: 1: 2: 3
xilinx_lltemac xilinx_lltemac.0: XLlTemac: using DMA mode.
XLlTemac: Dma base address: phy: 0x84600100, virt: 0xc3008100
XLlTemac: buffer descriptor size: 32768 (0x8000)
XLlTemac: Allocating DMA descriptors with kmalloc<6>XLlTemac:
(buffer_descriptor_init) phy: 0x1d18000, virt: 0xc1d18000, size: 0x8000
XTemac: PHY detected at address 7.
xilinx_lltemac xilinx_lltemac.0: eth0: Xilinx TEMAC at 0x81C00000 mapped
to 0xC3004000, irq=2
console [netcon0] enabled
Linux version 2.6.24-rc8-xlnx-g1db182b8-dirty (mingliu@cca01) (gcc version
3.4.1) #7 Tue Apr 1 14:55:25 CEST 2008
Xilinx Generic PowerPC board support package (Xilinx ML405) (Virtex-4 FX)
Zone PFN ranges:
  DMA             0 ->     8192
  Normal       8192 ->     8192
  HighMem      8192 ->     8192
Movable zone start PFN for each node
early_node_map[1] active PFN ranges
    0:        0 ->     8192
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 8128
Kernel command line: root=/dev/nfs
ip=192.168.0.4:192.168.0.3:192.168.0.3:255.255.255.0 rw
nfsroot=192.168.0.3:/home/mingliu/ml403_rootfs console=ttyUL0,38400
mem=32M
Xilinx INTC #0 at 0x81800000 mapped to 0xFDFFF000
PID hash table entries: 128 (order: 7, 512 bytes)
Console: colour dummy device 80x25
Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
Memory: 28884k available (2552k kernel code, 944k data, 84k init, 0k highmem)
SLUB: Genslabs=11, HWalign=32, Order=0-1, MinObjects=4, CPUs=1, Nodes=1
Mount-cache hash table entries: 512
net_namespace: 64 bytes
NET: Registered protocol family 16
Registering device uartlite:0
Fixup MAC address for xilinx_lltemac:0
Registering device xilinx_lltemac:0
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 1024 (order: 1, 8192 bytes)
TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
TCP: Hash tables configured (established 1024 bind 1024)
TCP reno registered
sysctl table check failed: /kernel/l2cr .1.31 Missing strategy
Call Trace:
[c1c0fe50] [c0008b70] show_stack+0x40/0x194 (unreliable)
[c1c0fe90] [c003aed4] set_fail+0x68/0x80
[c1c0feb0] [c003b4ec] sysctl_check_table+0x600/0x77c
[c1c0fef0] [c003b4d4] sysctl_check_table+0x5e8/0x77c
[c1c0ff30] [c002605c] register_sysctl_table+0x64/0xb4
[c1c0ff50] [c034579c] register_ppc_htab_sysctl+0x18/0x2c
[c1c0ff60] [c034482c] kernel_init+0x94/0x2bc
[c1c0fff0] [c0004d58] kernel_thread+0x44/0x60
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
fuse init (API version 7.9)
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
uartlite.0: ttyUL0 at MMIO 0x84000003 (irq = 3) is a uartlite
console [ttyUL0] enabled
loop: module loaded
nbd: registered device at major 43
xilinx_lltemac xilinx_lltemac.0: MAC address is now  0: a:35: 1: 2: 3
xilinx_lltemac xilinx_lltemac.0: XLlTemac: using DMA mode.
XLlTemac: Dma base address: phy: 0x84600100, virt: 0xc3008100
XLlTemac: buffer descriptor size: 32768 (0x8000)
XLlTemac: Allocating DMA descriptors with kmalloc<6>XLlTemac:
(buffer_descriptor_init) phy: 0x1d18000, virt: 0xc1d18000, size: 0x8000
XTemac: PHY detected at address 7.
xilinx_lltemac xilinx_lltemac.0: eth0: Xilinx TEMAC at 0x81C00000 mapped
to 0xC3004000, irq=2
console [netcon0] enabled
netconsole: network logging started
Generic platform RAM MTD, (c) 2004 Simtec Electronics
mice: PS/2 mouse device common for all mice
TCP cubic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
eth0: XLlTemac: Options: 0x3fa
eth0: XLlTemac: allocating interrupt 0 for dma mode tx.
eth0: XLlTemac: allocating interrupt 1 for dma mode rx.
eth0: XLlTemac: speed set to 1000Mb/s
eth0: XLlTemac: Send Threshold = 24, Receive Threshold = 4
eth0: XLlTemac: Send Wait bound = 254, Receive Wait bound = 254
IP-Config: Complete:
      device=eth0, addr=192.168.0.4, mask=255.255.255.0, gw=192.168.0.3,
     host=192.168.0.4, domain=, nis-domain=(none),
     bootserver=192.168.0.3, rootserver=192.168.0.3, rootpath=
Looking up port of RPC 100003/2 on 192.168.0.3
rpcbind: server 192.168.0.3 not responding, timed out
Root-NFS: Unable to get nfsd port number from server, using default
Looking up port of RPC 100005/1 on 192.168.0.3
rpcbind: server 192.168.0.3 not responding, timed out
Root-NFS: Unable to get mountd port number from server, using default
mount: server 192.168.0.3 not responding, timed out
Root-NFS: Server returned error -5 while mounting /home/mingliu/ml403_rootfs
VFS: Unable to mount root fs via NFS, trying floppy.
VFS: Cannot open root device "nfs" or unknown-block(2,0)
Please append a correct "root=" boot option; here are the available
partitions:
Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(2,0)
Rebooting in 180 seconds..
 
 
BR
Ming

 

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