Redirecting printk to a file
Guys, We are having a bit of a quandary we are trying to redirect the output of printk from our v24 port to a file in our debug environment / embedded system so we can use the V24 port for something else. We are newish to the world of Linux and cannot seem to figure this our does anybody have any suggestions? Regards, Rod Boyce ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Where can I configure the base address?
Hello, I'm struggling to get the kernel (zvmlinux) run on our custom board with 860T, but I think I get it loaded on wrong address. I want the kernel starts from address 0x, but I can't figure out which file to set the base address for memory map. And, I find System.map file in top directory ./linux-2.2.14 , but it seems like it's a system map for vmlinux. I also would like to know how to get the system map of zvmlinux (zImage), if it's possible. Thanks in advance. -- Masahide Tomita tomita at itl.nyc.co.jp ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Redirecting printk to a file
On Tuesday 31 July 2001 21:11, Dan Malek wrote: Rod Boyce wrote: We are having a bit of a quandary we are trying to redirect the output of printk Don't assign a system console, or bump the loglevel real high. Then just use the syslog daemon to move it from the kernel circular buffer to a file. This is all standard Linux stuff. -- Dan For debugging purposes, there's another option that I've found easier to setup: 1. Set the loglevel to a high priority echo 1 /proc/sys/kernel/printk 2. Open a telnet session to your board and, in the opened session: cat /proc/kmsg James ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Coffboot jffs2
Hi everybody: I have a PPC860T custom board and it is working with PPCBoot 0.7.1 and Linux 2.4.4 kernel source from: ftp.denx.de/pub/LinuxPPC/usr/src/linux-2.4.4-2001-05-12.tar.bz2 Everything goes fine, but right now I want to use the flash as a hard-disk through jffs2. The problem is that I am not able of getting a linux kernel with coffboot and jffs2 directories, at the same time. I also have the HardHat 2.0 Journeyman Edition that comes with jffs2, but it doesn?t have the coffboot directory, so I can?t create the kernel image to be booted by PPCBoot. How can I create a kernel image for the PPCBoot from this distribution ? Where can I get a linux kernel with these two features at the same time ? Thank you Billa ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Hanging in Init
I have been trying to get a custom PPC860 board up using MonteVista's Hard Hat 2.0 distribution using a vxWorks bootrom. I have made alot of progress in the last few days but have got stuck at the point here init is executed. The IMMR is set to 0x0220. I ran across some old posts on the list referring to this being set too low for linux. Could this be the problem? If not does anyone have any suggestions on what could be wrong? Attached is the boot up output from the console. Thanks, Mike O'Brien Attaching network interface cpm0... done. Attaching network interface lo0... done. Loading... 504934 WARNING: CRC mismatch (calculated 0x1a946201 expected 0x017c1f7c) Starting at 0x118... loaded at: 0118 0118A1DC relocated to: 0018 0018A1DC board data at: 001801C0 001801DC relocated to: 00200100 0020011C zimage at: 01187000 011F828A avail ram: 00201000 0200 Linux/PPC load: root=/dev/nfs rw init=/bin/sh Uncompressing Linux...done. Now booting the kernel Linux version 2.4.2_hhl20 (root at palm) (gcc version 2.95.3 20010315 (release/Mon1 On node 0 totalpages: 8192 zone(0): 8192 pages. zone(1): 0 pages. zone(2): 0 pages. Kernel command line: root=/dev/nfs rw init=/bin/sh Decrementer Frequency = 12375/60 Warning: real time clock seems stuck! Calibrating delay loop... 32.87 BogoMIPS Memory: 30940k available (864k kernel code, 320k data, 48k init, 0k highmem) Dentry-cache hash table entries: 4096 (order: 3, 32768 bytes) Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes) Page-cache hash table entries: 8192 (order: 3, 32768 bytes) Inode-cache hash table entries: 2048 (order: 2, 16384 bytes) POSIX conformance testing by UNIFIX Calling smp_init()... Calling kernel_thread()... Calling unlock_kernel()... Entered init()... Calling do_basic_setup()... Linux NET4.0 for Linux 2.4 Based upon Swansea University Computer Society NET3.039 Starting kswapd v1.8 i2c-core.o: i2c core module CPM UART driver version 0.03 ttyS00 at 0x0280 is a SMC pty: 256 Unix98 ptys configured block: queued sectors max/low 20488kB/6829kB, 64 slots per queue RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize eth0: CPM ENET Version 0.2 on SCC1, 08:00:3e:26:15:59 loop: loaded (max 8 devices) NET4: Linux TCP/IP 1.0 for NET4.0 IP Protocols: ICMP, UDP, TCP, IGMP IP: routing cache hash table of 512 buckets, 4Kbytes TCP: Hash tables configured (established 2048 bind 2048) Sending BOOTP requests OK IP-Config: Got BOOTP answer from 192.168.101.239, my address is 192.168.101.98 NET4: Unix domain sockets 1.0/SMP for Linux NET4.0. Looking up port of RPC 13/2 on 192.168.101.239 Looking up port of RPC 15/2 on 192.168.101.239 VFS: Mounted root (nfs filesystem). Freeing unused kernel memory: 48k init 4k openfirmware Unlock kernel... Open console... Call /sbin/init... [hang] ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Hanging in Init
In message 000101c11ab4$0fc48f60$6865a8c0 at airfiber.com you wrote: I have been trying to get a custom PPC860 board up using MonteVista's Hard Hat 2.0 distribution using a vxWorks bootrom. I have made alot of progress in the last few days but have got stuck at the point here init is executed. The IMMR is set to 0x0220. I ran across some old posts on the list referring to this being set too low for linux. Could this be the problem? If not does anyone have any Sure. Your system will crash as soon as the first user-land program is running. See http://penguinppc.org/usr/embedded/howto/PowerPC-Embedded-HOWTO-10.html#ss10.2 Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de The algorithm to do that is extremely nasty. You might want to mug someone with it. - M. Devine, Computer Science 340 ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Hanging in Init
Mike, As far as I know, Linux requires IMMR = 0xF000. Read the file ./Documentation/powerpc/SBC8260_memory_mapping.txt in the Linux source tree for more information. []'s, Scopmailto:scop at digitel.com.br Wednesday, August 01, 2001, 3:01:59 PM, you wrote: MOB I have been trying to get a custom PPC860 board up using MonteVista's Hard MOB Hat MOB 2.0 distribution using a vxWorks bootrom. I have made alot of progress in MOB the last MOB few days but have got stuck at the point here init is executed. The IMMR is MOB set MOB to 0x0220. I ran across some old posts on the list referring to this MOB being set MOB too low for linux. Could this be the problem? If not does anyone have any MOB suggestions on what could be wrong? Attached is the boot up output from the MOB console. MOB Thanks, MOB Mike O'Brien MOB Attaching network interface cpm0... done. MOB Attaching network interface lo0... done. MOB Loading... 504934 MOB WARNING: CRC mismatch (calculated 0x1a946201 expected 0x017c1f7c) MOB Starting at 0x118... MOB loaded at: 0118 0118A1DC MOB relocated to: 0018 0018A1DC MOB board data at: 001801C0 001801DC MOB relocated to: 00200100 0020011C MOB zimage at: 01187000 011F828A MOB avail ram: 00201000 0200 MOB Linux/PPC load: root=/dev/nfs rw init=/bin/sh MOB Uncompressing Linux...done. MOB Now booting the kernel MOB Linux version 2.4.2_hhl20 (root at palm) (gcc version 2.95.3 20010315 MOB (release/Mon1 MOB On node 0 totalpages: 8192 MOB zone(0): 8192 pages. MOB zone(1): 0 pages. MOB zone(2): 0 pages. MOB Kernel command line: root=/dev/nfs rw init=/bin/sh MOB Decrementer Frequency = 12375/60 MOB Warning: real time clock seems stuck! MOB Calibrating delay loop... 32.87 BogoMIPS MOB Memory: 30940k available (864k kernel code, 320k data, 48k init, 0k highmem) MOB Dentry-cache hash table entries: 4096 (order: 3, 32768 bytes) MOB Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes) MOB Page-cache hash table entries: 8192 (order: 3, 32768 bytes) MOB Inode-cache hash table entries: 2048 (order: 2, 16384 bytes) MOB POSIX conformance testing by UNIFIX MOB Calling smp_init()... MOB Calling kernel_thread()... MOB Calling unlock_kernel()... MOB Entered init()... MOB Calling do_basic_setup()... MOB Linux NET4.0 for Linux 2.4 MOB Based upon Swansea University Computer Society NET3.039 MOB Starting kswapd v1.8 MOB i2c-core.o: i2c core module MOB CPM UART driver version 0.03 MOB ttyS00 at 0x0280 is a SMC MOB pty: 256 Unix98 ptys configured MOB block: queued sectors max/low 20488kB/6829kB, 64 slots per queue MOB RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize MOB eth0: CPM ENET Version 0.2 on SCC1, 08:00:3e:26:15:59 MOB loop: loaded (max 8 devices) MOB NET4: Linux TCP/IP 1.0 for NET4.0 MOB IP Protocols: ICMP, UDP, TCP, IGMP MOB IP: routing cache hash table of 512 buckets, 4Kbytes MOB TCP: Hash tables configured (established 2048 bind 2048) MOB Sending BOOTP requests OK MOB IP-Config: Got BOOTP answer from 192.168.101.239, my address is MOB 192.168.101.98 MOB NET4: Unix domain sockets 1.0/SMP for Linux NET4.0. MOB Looking up port of RPC 13/2 on 192.168.101.239 MOB Looking up port of RPC 15/2 on 192.168.101.239 MOB VFS: Mounted root (nfs filesystem). MOB Freeing unused kernel memory: 48k init 4k openfirmware MOB Unlock kernel... MOB Open console... MOB Call /sbin/init... MOB [hang] MOB ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/ ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Hanging in Init
MOB I have been trying to get a custom PPC860 board up using MonteVista's Hard MOB Hat MOB 2.0 distribution using a vxWorks bootrom. I have made alot of progress in MOB the last MOB few days but have got stuck at the point here init is executed. The IMMR is MOB set MOB to 0x0220. I ran across some old posts on the list referring to this MOB being set MOB too low for linux. Could this be the problem? If not does anyone have any MOB suggestions on what could be wrong? Attached is the boot up output from the MOB console. MOB Thanks, MOB Mike O'Brien MOB Attaching network interface cpm0... done. MOB Attaching network interface lo0... done. MOB Loading... 504934 MOB WARNING: CRC mismatch (calculated 0x1a946201 expected 0x017c1f7c) MOB Starting at 0x118... MOB loaded at: 0118 0118A1DC MOB relocated to: 0018 0018A1DC MOB board data at: 001801C0 001801DC MOB relocated to: 00200100 0020011C MOB zimage at: 01187000 011F828A MOB avail ram: 00201000 0200 MOB Linux/PPC load: root=/dev/nfs rw init=/bin/sh MOB Uncompressing Linux...done. MOB Now booting the kernel MOB Linux version 2.4.2_hhl20 (root at palm) (gcc version 2.95.3 20010315 MOB (release/Mon1 MOB On node 0 totalpages: 8192 MOB zone(0): 8192 pages. MOB zone(1): 0 pages. MOB zone(2): 0 pages. MOB Kernel command line: root=/dev/nfs rw init=/bin/sh MOB Decrementer Frequency = 12375/60 MOB Warning: real time clock seems stuck! MOB Calibrating delay loop... 32.87 BogoMIPS MOB Memory: 30940k available (864k kernel code, 320k data, 48k init, 0k highmem) MOB Dentry-cache hash table entries: 4096 (order: 3, 32768 bytes) MOB Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes) MOB Page-cache hash table entries: 8192 (order: 3, 32768 bytes) MOB Inode-cache hash table entries: 2048 (order: 2, 16384 bytes) MOB POSIX conformance testing by UNIFIX MOB Calling smp_init()... MOB Calling kernel_thread()... MOB Calling unlock_kernel()... MOB Entered init()... MOB Calling do_basic_setup()... MOB Linux NET4.0 for Linux 2.4 MOB Based upon Swansea University Computer Society NET3.039 MOB Starting kswapd v1.8 MOB i2c-core.o: i2c core module MOB CPM UART driver version 0.03 MOB ttyS00 at 0x0280 is a SMC MOB pty: 256 Unix98 ptys configured MOB block: queued sectors max/low 20488kB/6829kB, 64 slots per queue MOB RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize MOB eth0: CPM ENET Version 0.2 on SCC1, 08:00:3e:26:15:59 MOB loop: loaded (max 8 devices) MOB NET4: Linux TCP/IP 1.0 for NET4.0 MOB IP Protocols: ICMP, UDP, TCP, IGMP MOB IP: routing cache hash table of 512 buckets, 4Kbytes MOB TCP: Hash tables configured (established 2048 bind 2048) MOB Sending BOOTP requests OK MOB IP-Config: Got BOOTP answer from 192.168.101.239, my address is MOB 192.168.101.98 MOB NET4: Unix domain sockets 1.0/SMP for Linux NET4.0. MOB Looking up port of RPC 13/2 on 192.168.101.239 MOB Looking up port of RPC 15/2 on 192.168.101.239 MOB VFS: Mounted root (nfs filesystem). MOB Freeing unused kernel memory: 48k init 4k openfirmware MOB Unlock kernel... MOB Open console... MOB Call /sbin/init... try Linux/PPC load: root=/dev/nfs rw nfsroot=A.B.C.D:/NFSROOT nfsaddrs=IP_OF_TARGET:IP_OF_NFSROOT_SERVER:IP_OF_DEFAULT_GATEWAY:NETMASK so I use Linux/PPC load: root=/dev/nfs rw nfsroot=192.168.1.2:/ppc nfsaddrs=192.168.1.22:192.168.1.2:192.168.1.8:255.255.255.0 how should it ever find /sbin/init if it never mounts the nfs-root filesystem ? and from the kernel messages you sent it did not mount any root filesystem . hofrat ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
