Messages in this thread | | | Subject | Re: 2.6.2-rc3: irq#19 - nobody cared - with an au88xx | From | Len Brown <> | Date | 07 Feb 2004 01:11:48 -0500 |
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Can you isolate this regression to a specific release? There have been several changes to arch/i386/kernel/irq.c since 2.6.0-test7. Also, it would be interesting to know if it also happens with CONFIG_SMP=n (but with the IOAPIC still enabled) Plus, a sanity check of the rate of interrutps reported by /proc/interrupts might yield a clue.
thanks, -Len
ps. You can avoid the symptom by booting with "noirqdebug" or having the interrupt handling always return IRQ_HANDLED. But then we'd lose the means to find out why the driver is receiving interrupts for which it can find no cause.
On Fri, 2004-02-06 at 23:42, Daniel Jacobowitz wrote: > I've started getting this, every 24 hours or so: > > irq 19: nobody cared! > Call Trace: > [<c010d38a>] __report_bad_irq+0x2a/0x90 > [<c010d480>] note_interrupt+0x70/0xb0 > [<c010d7c0>] do_IRQ+0x160/0x1a0 > [<c0105000>] _stext+0x0/0x60 > [<c010b8d8>] common_interrupt+0x18/0x20 > [<c0108990>] default_idle+0x0/0x40 > [<c0105000>] _stext+0x0/0x60 > [<c01089bc>] default_idle+0x2c/0x40 > [<c0108a4b>] cpu_idle+0x3b/0x50 > [<c04b64a0>] unknown_bootoption+0x0/0x120 > [<c04b6926>] start_kernel+0x1a6/0x1f0 > [<c04b64a0>] unknown_bootoption+0x0/0x120 > > handlers: > [<f886b290>] (au_isr+0x0/0xb0 [au8830]) > Disabling IRQ #19 > > and then sound doesn't work for a while. > > There's a good chance this is my fault. IRQ 19 is: > > 19: 18500001 0 IO-APIC-level au88xx > > and the au88xx driver is an out-of-tree driver that was developed on > 2.4/early-2.5, and I ported it to 2.6 myself. It worked flawlessly on > 2.6.0-test7; has something changed in how interrupt handlers are > required to > behave? > > [Just ask if you actually want the source to this driver... I don't > know > enough about the card to actually submit it to Linus's tree and the > driver's > original authors aparently didn't care to.] > > -- > Daniel Jacobowitz > MontaVista Software Debian GNU/Linux Developer > - > To unsubscribe from this list: send the line "unsubscribe > linux-kernel" in > the body of a message to majordomo@vger.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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