From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Mon, 21 Aug 2006 16:50:24 +0300
From: Heikki Lindholm <holindho@domain.hid>
MIME-Version: 1.0
Subject: Re: [Xenomai-help] Oops on PPC405EP
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To: Dirk Eibach <eibach@domain.hid>
Cc: xenomai@xenomai.org

Dirk Eibach kirjoitti:
> rpm@xenomai.org wrote:
> 
>> On Mon, 2006-08-21 at 14:15 +0200, Dirk Eibach wrote:
>>
>>> Oops: Exception in kernel mode, sig: 4 [#1]
>>> NIP: C016772C LR: C003C7B0 SP: C1A19E50 REGS: c1a19da0 TRAP: 0700
>>> Not tainted
>>> MSR: 0002b030 EE: 1 PR: 0 FP: 1 ME: 1 IR/DR: 11
>>> TASK = c1a10b60[500] 'sampling-497' THREAD: c1a18000
>>> Last syscall: 50332203
>>> GPR00: C1A10D48 C1A19E50 C1A10B60 C1A10D48 C0005940 0002B030 0007C45F
>>> C1A10B5F
>>> GPR08: 00000001 00400000 00000001 C0260040 00000000 10020184 01FEF400
>>> 00000000
>>> GPR16: 00000001 FFFFFFFF 00000000 00000000 0FFAC420 00000000 C1A19F50
>>> C021C420
>>> GPR24: 0000000E C0250000 C0260000 00000000 00000018 C0261350 C0362768
>>> C0261380
>>> Call trace: [c00421fc]  [c0042668]  [c0043530]  [c0035708]  [c000b418]
>>> [c0002bf4]
>>>
>>
>> Oops indeed. Could you objdump the kernel, and locate the symbols close
>> to the addresses 0xC016772C and 0xC003C7B0? TIA,
>>
> 
> Just compiled symbols into the kernel. Now it should be human readable ;)
> 
> Oops: Exception in kernel mode, sig: 4 [#1]
> NIP: C016892C LR: C003D8CC SP: C1A39E50 REGS: c1a39da0 TRAP: 0700    Not
> tainted
> MSR: 0002b030 EE: 1 PR: 0 FP: 1 ME: 1 IR/DR: 11
> TASK = c1a2fb40[501] 'sampling-498' THREAD: c1a38000
> Last syscall: 50332203
> GPR00: C1A2FD28 C1A39E50 C1A2FB40 C1A2FD28 C0005960 0002B030 000634DF
> C1A2FB3F
> GPR08: 00000001 00400000 00000001 C027E040 00000000 10020184 01FEF400
> 00000000
> GPR16: 00000001 FFFFFFFF 00000000 00000000 0FFAC420 00000000 C1A39F50
> C021D4A0
> GPR24: 0000000E C0270000 C0280000 00000000 00000018 C027F350 C0382768
> C027F380
> NIP [c016892c] rthal_restore_fpu+0x10/0xe4
> LR [c003d8cc] xnpod_switch_fpu+0x94/0x12c
> Call trace:
>   [c0043318] xnshadow_harden+0xd0/0xfc
>   [c0043784] xnshadow_wait_barrier+0x100/0x114
>   [c004464c] losyscall_event+0xc0/0x194
>   [c0036824] __ipipe_dispatch_event+0x88/0x148
>   [c000b488] __ipipe_syscall_root+0x50/0xd0
>   [c0002c14] DoSyscall+0x24/0x6c

Since your hardware AFAIK does not have an FPU, shouldn't you be 
compiling Xenomai without hardware FPU support?

-- Heikki Lindholm