From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx.dlasys.net (24.152.213.223.res-cmts.eph.ptd.net [24.152.213.223]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTP id D6C0667DA7 for ; Fri, 6 Oct 2006 19:01:59 +1000 (EST) Message-ID: <45261983.2090108@dlasys.net> Date: Fri, 06 Oct 2006 04:53:23 -0400 From: "David H. Lynch Jr." MIME-Version: 1.0 To: Glenn.G.Hart@us.westinghouse.com Subject: Re: Problem with initrd References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Cc: linuxppc-embedded@ozlabs.org List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Glenn.G.Hart@us.westinghouse.com wrote: > I am trying to get Linux running on the PPC of a Xilinx V4-FX12 FPGA. I am > using the Linux 2.6.17.9 kernel (I have also tried 2.6.17.1 with the same > results) and have gotten through the kernel initialization to the point > where it mounts the root file system. At this point I can an Oops and a > kernel panic. I traced the kernel and found it was happening on the gunzip > of the ramdisk image. I tried without compressing the ramdisk image and I > got a slightly different error. I have attached this output as well. I am > not a kernel expert, but I am guessing it is having trouble accessing the > RAM for the ramdisk. Can anybody offer some advice? > Try 2.6.18 or 2.6.16 . There were compression/decompression problems in 2.6.17 for the ppc. These may be your problem. > Thanks, > Glenn > > With compress ramdisk image: > > loaded at: 00400000 0052B13C > board data at: 00529124 0052913C > relocated to: 004050F0 00405108 > zimage at: 00405805 004D072E > initrd at: 004D1000 00528981 > avail ram: 0052C000 10000000 > > Linux/PPC load: console=ttyS0,9600 console=tty0 root=/dev/ram rw > Uncompressing Linux...done. > Now booting the kernel > initrd start c04d1000 end c0528981 > Linux version 2.6.17.9 (root@AFedora3) (gcc version 3.4.5) #32 PREEMPT Tue > Oct 3 23:25:12 EDT 2006 > Xilinx Virtex-II Pro port > Port by MontaVista Software, Inc. (source@mvista.com) > Built 1 zonelists > Kernel command line: console=ttyS0,9600 console=tty0 root=/dev/ram rw > Xilinx INTC #0 at 0x41200000 mapped to 0xFDFFE000 > PID hash table entries: 2048 (order: 11, 8192 bytes) > Console: colour dummy device 80x25 > Dentry cache hash table entries: 32768 (order: 5, 131072 bytes) > Inode-cache hash table entries: 16384 (order: 4, 65536 bytes) > Memory: 257408k available (1424k kernel code, 368k data, 80k init, 0k > highmem) > Mount-cache hash table entries: 512 > checking if image is initramfs...it isn't (no cpio magic); looks like an > initrd > Freeing initrd memory: 350k freed > NET: Registered protocol family 16 > NET: Registered protocol family 2 > IP route cache hash table entries: 2048 (order: 1, 8192 bytes) > TCP established hash table entries: 8192 (order: 3, 32768 bytes) > TCP bind hash table entries: 4096 (order: 2, 16384 bytes) > TCP: Hash tables configured (established 8192 bind 4096) > TCP reno registered > io scheduler noop registered (default) > Serial: 8250/16550 driver $Revision: 1.90 $ 1 ports, IRQ sharing disabled > serial8250.0: ttyS0 at MMIO 0x40401003 (irq = 1) is a 16450 > RAMDISK driver initialized: 1 RAM disks of 4096K size 1024 blocksize > loop: loaded (max 2 devices) > nbd: registered device at major 43 > eth0: using fifo mode. > eth0: Xilinx EMAC #0 at 0x80400000 mapped to 0xD1000000, irq=0 > eth0: id 2.0a; block id 0, type 8 > mice: PS/2 mouse device common for all mice > TCP bic registered > NET: Registered protocol family 1 > NET: Registered protocol family 17 > RAMDISK: Compressed image found at block 0 > allocated in buffer > allocated window buffer > make crc > gunzip > Oops: kernel access of bad area, sig: 11 [#1] > PREEMPT > NIP: C004115C LR: C0041148 CTR: C00FA29C > REGS: c0421610 TRAP: 0300 Not tainted (2.6.17.9) > MSR: 00029030 CR: 35035093 XER: E0000000 > DAR: 00001000, DSISR: 00800000 > TASK = c0529b10[1] 'swapper' THREAD: c0420000 > GPR00: C0041148 C04216C0 C0529B10 00000000 00000001 00000001 C04216A8 > 00000000 > GPR08: 00000000 00001000 00000400 00000000 35035099 FFFF9620 00000001 > C04216D0 > GPR16: C018CD50 C04C88A0 C052FC08 00000000 00001000 00010000 C052FCA8 > 00000000 > GPR24: 00140000 C0450000 00000000 00001000 C01E3F20 00001000 00001000 > 00000000 > NIP [C004115C] generic_file_buffered_write+0x4ec/0x5bc > LR [C0041148] generic_file_buffered_write+0x4d8/0x5bc > Call Trace: > [C04216C0] [C0041148] generic_file_buffered_write+0x4d8/0x5bc (unreliable) > [C0421780] [C0041A10] __generic_file_aio_write_nolock+0x4d4/0x50c > [C0421810] [C0041DB8] generic_file_aio_write_nolock+0x28/0x98 > [C0421830] [C0041EA0] generic_file_write_nolock+0x78/0xa8 > [C04218D0] [C00657F8] blkdev_file_write+0x20/0x30 > [C04218E0] [C005B400] vfs_write+0xc8/0x190 > [C0421900] [C005B5A0] sys_write+0x4c/0x8c > [C0421930] [C01AD2D4] flush_window+0x34/0xe4 > [C0421950] [C01AD8B8] inflate_codes+0x468/0x4b0 > [C04219A0] [C01AE0E0] inflate_dynamic+0x64c/0x690 > [C0421EE0] [C01AEA1C] rd_load_image+0x8f4/0x106c > [C0421F40] [C01AF33C] initrd_load+0x4c/0x304 > [C0421F70] [C01ACCB8] prepare_namespace+0xa8/0x11c > [C0421F90] [C0002580] init+0x1b4/0x280 > [C0421FF0] [C00051FC] kernel_thread+0x44/0x60 > Instruction dump: > 48006591 2f9d0000 419c001c 7ec3b378 38800001 4800441d 48120851 2f930000 > 409efbe8 8061005c 81210064 2f830000 <92e90000> 93090004 41be0008 48006555 > Kernel panic - not syncing: Attempted to kill init! > <0>Rebooting in 180 seconds. > > > With uncompress ramdisk image: > > loaded at: 00400000 008D313C > board data at: 008D1124 008D113C > relocated to: 004050F0 00405108 > zimage at: 00405805 004D072C > initrd at: 004D1000 008D1000 > avail ram: 008D4000 10000000 > > Linux/PPC load: console=ttyS0,9600 console=tty0 root=/dev/ram rw > Uncompressing Linux...done. > Now booting the kernel > initrd start c04d1000 end c08d1000 > Linux version 2.6.17.9 (root@AFedora3) (gcc version 3.4.5) #33 PREEMPT Wed > Oct 4 00:18:59 EDT 2006 > Xilinx Virtex-II Pro port > Port by MontaVista Software, Inc. (source@mvista.com) > Built 1 zonelists > Kernel command line: console=ttyS0,9600 console=tty0 root=/dev/ram rw > Xilinx INTC #0 at 0x41200000 mapped to 0xFDFFE000 > PID hash table entries: 2048 (order: 11, 8192 bytes) > Console: colour dummy device 80x25 > Dentry cache hash table entries: 32768 (order: 5, 131072 bytes) > Inode-cache hash table entries: 16384 (order: 4, 65536 bytes) > Memory: 253696k available (1424k kernel code, 368k data, 80k init, 0k > highmem) > Mount-cache hash table entries: 512 > checking if image is initramfs...it isn't (bad gzip magic numbers); looks > like an initrd > Freeing initrd memory: 4096k freed > NET: Registered protocol family 16 > NET: Registered protocol family 2 > IP route cache hash table entries: 2048 (order: 1, 8192 bytes) > TCP established hash table entries: 8192 (order: 3, 32768 bytes) > TCP bind hash table entries: 4096 (order: 2, 16384 bytes) > TCP: Hash tables configured (established 8192 bind 4096) > TCP reno registered > io scheduler noop registered (default) > Serial: 8250/16550 driver $Revision: 1.90 $ 1 ports, IRQ sharing disabled > serial8250.0: ttyS0 at MMIO 0x40401003 (irq = 1) is a 16450 > RAMDISK driver initialized: 1 RAM disks of 4096K size 1024 blocksize > loop: loaded (max 2 devices) > nbd: registered device at major 43 > eth0: using fifo mode. > eth0: Xilinx EMAC #0 at 0x80400000 mapped to 0xD1000000, irq=0 > eth0: id 2.0a; block id 0, type 8 > mice: PS/2 mouse device common for all mice > TCP bic registered > NET: Registered protocol family 1 > NET: Registered protocol family 17 > RAMDISK: ext2 filesystem found at block 0 > found ramdisk # blocks = 4096 /initrd.image > RAMDISK: Loading 4096KiB [1 disk] into ram disk... Oops: Exception in > kernel mode, sig: 4 [#1] > PREEMPT > NIP: C0079058 LR: C0079018 CTR: 00000000 > REGS: c08e1c20 TRAP: 0700 Not tainted (2.6.17.9) > MSR: 00029030 CR: 35005093 XER: C0000000 > TASK = c04c9b10[1] 'swapper' THREAD: c08e0000 > GPR00: 11A49A00 C08E1CD0 C04C9B10 C08E1CD8 C08E1CB8 00000001 C08D4C00 > 00000003 > GPR08: 11A49A00 11A49A00 11A49A00 C08D26AC 00000400 FFFF9620 00000002 > C08D2664 > GPR16: 00000002 00000001 C08E1EC0 C04C26C0 00000000 C08E1DA0 000003FF > C08D2704 > GPR24: 00001000 00000000 00400000 00000400 00000001 00000400 00000000 > C08D2664 > NIP [C0079058] touch_atime+0xc4/0xd8 > LR [C0079018] touch_atime+0x84/0xd8 > Call Trace: > [C08E1CD0] [C0079018] touch_atime+0x84/0xd8 (unreliable) > [C08E1CF0] [C003FBF0] do_generic_mapping_read+0x490/0x4a4 > [C08E1D90] [C00420BC] __generic_file_aio_read+0x1ec/0x238 > [C08E1DE0] [C0042238] generic_file_read+0x88/0xb8 > [C08E1E90] [C005B16C] vfs_read+0xc8/0x190 > [C08E1EB0] [C005B514] sys_read+0x4c/0x8c > [C08E1EE0] [C01AF100] rd_load_image+0xfd8/0x106c > [C08E1F40] [C01AF33C] initrd_load+0x4c/0x304 > [C08E1F70] [C01ACCB8] prepare_namespace+0xa8/0x11c > [C08E1F90] [C0002580] init+0x1b4/0x280 > [C08E1FF0] [C00051FC] kernel_thread+0x44/0x60 > Instruction dump: > 409e0014 800b0004 8121000c 7f804800 419e0020 81210008 8141000c 7fe3fb78 > 913f0048 915f004c 38800001 4800b1a1 <00000000> 00000800 7c0803a6 38210020 > Kernel panic - not syncing: Attempted to kill init! > <0>Rebooting in 180 seconds.. > > > _______________________________________________ > Linuxppc-embedded mailing list > Linuxppc-embedded@ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-embedded > -- Dave Lynch DLA Systems Software Development: Embedded Linux 717.627.3770 dhlii@dlasys.net http://www.dlasys.net fax: 1.253.369.9244 Cell: 1.717.587.7774 Over 25 years' experience in platforms, languages, and technologies too numerous to list. "Any intelligent fool can make things bigger and more complex... It takes a touch of genius - and a lot of courage to move in the opposite direction." Albert Einstein