xilinx Ml405 NFS mount problem
Robert Woodworth
rwoodworth at securics.com
Wed Apr 2 03:50:18 EST 2008
I think you may be suffering from the latest LL_TEMAC packet loss
problem. (NFS/UDP really does not like packet loss)
Let me guess.
You are using a base system from "Base System Builder Wizard"?
EDK 9.2i. Default syntheses/P&R options.
I have seen a massive packet loss problems on my ML403 and two other
boards I have with an FX60.
This is probably a hardware problem.
Xilinx has acknowledged an LL_TEMAC problem to me but has not provided a
fix. I have heard that things are better with EDK/ISE-10.1 but I have
not tested it.
The vendor of one of my boards (Pico) has fixed the problem on the FX60
by highly constraining the timing of the LL_TEMAC in map/PR. On my
ML403 I used similar constraints and it fixed the problem, but only if
the device is plugged into a GigE switch. The problem is still there
with the same .bit file on a 100-T switch.
Are you on a GigE switch?
Rob.
On Tue, 2008-04-01 at 16:15 +0000, MingLiu wrote:
> Dear John,
>
> Thank you for your replying.
>
> >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?
>
> Not yet. I will try it soon. However from the information on the
> LL_TEMAC, it seems everything is fine and it should work.
>
>
>
> >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.
>
>
>
> Yes. I used NFS before. I can make sure my NFS server works well. Also
> in principle, static IP should get a same result as DHCP, I think.
>
>
>
> >How long has it been since you pulled from the Xilinx Git tree?
>
>
>
> I just pulled the Xilinx tree quite recently. I am using a latest
> kernel.
>
>
>
> BR
>
> Ming
>
>
>
>
>
> 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 at ozlabs.org
> [mailto:linuxppc-embedded-bounces
> +john.linn=xilinx.com at ozlabs.org] On Behalf Of MingLiu
> Sent: Tuesday, April 01, 2008 8:12 AM
> To: linuxppc-embedded at 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 at 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=/de v/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
> Regis tering 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 at 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 MM IO 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 at 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 range
> s
> 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
> n
> et_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_c
> heck_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 at monad.swb.de).
> fuse init (API version 7.9)
> io scheduler noop registered<
> /SPAN>
> 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
> <
> SPAN style="FONT-SIZE: 12pt">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 10000
> 5/1 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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