lkml.org 
[lkml]   [2004]   [Feb]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    SubjectRe: 2.6.2-rc3: irq#19 - nobody cared - with an au88xx
    From
    Date
    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/
    >
    >

    -
    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/

    \
     
     \ /
      Last update: 2005-03-22 14:00    [W:3.596 / U:0.004 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site