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Date: Thu, 19 Jul 2007 14:04:05 +0300 From: Mike Rapoport <mike@...pulab.co.il> To: Rok Markovic <kernel@...ardia.eu> Cc: LKML <linux-kernel@...r.kernel.org>, linux-arm-kernel@...ts.arm.linux.org.uk Subject: Re: Oops on arm pxa270 2.6.22 Rok Markovic wrote: > Hi > > I would like to ask what could be a problem or how could I start > debuging it. > My board is cm-x270 from compulab and it successfully boot until it should > start init from busysbox. I get the folowing report. > > environment: > pxa270 > 128Mb RAM > network boot > gcc 3.4.5 softfloat > > > Linux image detected in memory at 0xA0100000, booting... [snip] > pxa2xx-fb: probe of pxa2xx-fb failed with error -22 > Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing disabled [snip] > RAMDISK driver initialized: 4 RAM disks of 4096K size 1024 blocksize > bootserver=0.0.0.0, rootserver=192.168.10.124, rootpath= > Looking up port of RPC 100003/2 on 192.168.10.124 > Looking up port of RPC 100005/1 on 192.168.10.124 > VFS: Mounted root (nfs filesystem). > Freeing init memory: 108K > Unable to handle kernel NULL pointer dereference at virtual address > 00000004 > pgd = c0004000 > [00000004] *pgd=00000000 > Internal error: Oops: f5 [#1] > Modules linked in: > CPU: 0 Not tainted (2.6.22-cm-x270 #2) > PC is at init_dev+0x38/0x5b8 > LR is at tty_open+0xf8/0x33c > pc : [<c0135dd8>] lr : [<c0136450>] psr: 60000013 [snip] > 3fe0: 00000000 00000000 00000000 c0423ff8 c003c9e8 c0008b30 e1a01007 > ebfd4ec0 > Backtrace: > [<c0135da0>] (init_dev+0x0/0x5b8) from [<c0136450>] (tty_open+0xf8/0x33c) > [<c0136358>] (tty_open+0x0/0x33c) from [<c0088600>] > (chrdev_open+0x114/0x174) > r8:c04e0d20 r7:00000000 r6:00000000 r5:c048f76c r4:c02e5c3c > [<c00884ec>] (chrdev_open+0x0/0x174) from [<c00847d0>] > (__dentry_open+0x188/0x228) > r8:c0531c80 r7:c04ae364 r6:c00884ec r5:c048f76c r4:c04e0d20 > [<c0084648>] (__dentry_open+0x0/0x228) from [<c00848a4>] > (nameidata_to_filp+0x34/0x4c) > [<c0084870>] (nameidata_to_filp+0x0/0x4c) from [<c0084908>] > (do_filp_open+0x4c/0x50) > r4:00000002 > [<c00848bc>] (do_filp_open+0x0/0x50) from [<c0084c48>] > (do_sys_open+0x5c/0xec) > r5:00000000 r4:00000002 > [<c0084bec>] (do_sys_open+0x0/0xec) from [<c0084cfc>] (sys_open+0x24/0x28) > [<c0084cd8>] (sys_open+0x0/0x28) from [<c0023300>] (init_post+0x2c/0xfc) > [<c00232d4>] (init_post+0x0/0xfc) from [<c0008c80>] > (kernel_init+0x15c/0x2bc) > r4:c02afed8 > [<c0008b24>] (kernel_init+0x0/0x2bc) from [<c003c9e8>] (do_exit+0x0/0x86c) > Code: e3a03000 e5823000 059030b8 e1a06000 (07935107) > Kernel panic - not syncing: Attempted to kill init! I think you have conflict between PXA serial and 8250 drivers. Make sure you use only one of them. If you need to use PCMCIA serial cards, please see http://lists.arm.linux.org.uk/pipermail/linux-arm-kernel/2007-July/040604.html -- Sincerely yours, Mike. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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