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Date: Mon, 30 Jan 2006 15:39:01 +0100
From: Jan Kiszka <jan.kiszka@domain.hid>
MIME-Version: 1.0
Subject: Re: [Xenomai-core] [BUG] Interrupt problem on powerpc
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To: Anders Blomdell <anders.blomdell@domain.hid>
Cc: xenomai@xenomai.org

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Anders Blomdell wrote:
> On a PrPMC800 (PPC 7410 processor) withe Xenomai-2.1-rc2, I get the
> following if the interrupt handler takes too long (i.e. next interrupt
> gets generated before the previous one has finished)
>=20
> [   42.543765]  [c00c2008] spin_bug+0xa8/0xc4
> [   42.597617]  [c00c22d4] _raw_spin_lock+0x180/0x184
> [   42.660637]  [c000f388] __ipipe_ack_irq+0x88/0x130
> [   42.723657]  [c000efe4] __ipipe_handle_irq+0x140/0x268
> [   42.791259]  [c000f144] __ipipe_grab_irq+0x38/0xa4
> [   42.854279]  [c0005058] __ipipe_ret_from_except+0x0/0xc
> [   42.923029]  [00000000] 0x0
> [   42.959695]  [c0038348] __do_IRQ+0x134/0x164
> [   43.015839]  [c000ed04] __ipipe_do_IRQ+0x2c/0x44
> [   43.076567]  [c000eb08] __ipipe_sync_stage+0x1ec/0x228
> [   43.144170]  [c0039420] ipipe_suspend_domain+0x7c/0xc4
> [   43.211774]  [c000f0b0] __ipipe_handle_irq+0x20c/0x268
> [   43.279377]  [c000f144] __ipipe_grab_irq+0x38/0xa4
> [   43.342396]  [c0005058] __ipipe_ret_from_except+0x0/0xc
> [   43.411145]  [c0006524] default_idle+0x10/0x60
>=20

I think some probably important information is missing above this
back-trace. What does the kernel state before these lines?

Jan


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