On Wed, Nov 16, 2011 at 11:09:17AM +0100, Stanislaw Gruszka wrote: > Some devices may generate spurious interrupts, we have to handle them > otherwise interrupt line will be disabled with below message and driver > will not work: > > [ 2052.114334] irq 17: nobody cared (try booting with the "irqpoll" option) > [ 2052.114339] Pid: 0, comm: swapper Tainted: P 2.6.35.6-48.fc14.x86_64 #1 > [ 2052.114341] Call Trace: > [ 2052.114342] <IRQ> [<ffffffff810a6e2b>] __report_bad_irq.clone.1+0x3d/0x8b > [ 2052.114349] [<ffffffff810a6f93>] note_interrupt+0x11a/0x17f > [ 2052.114352] [<ffffffff810a7a73>] handle_fasteoi_irq+0xa8/0xce > [ 2052.114355] [<ffffffff8100c2ea>] handle_irq+0x88/0x90 > [ 2052.114357] [<ffffffff8146f034>] do_IRQ+0x5c/0xb4 > [ 2052.114360] [<ffffffff81469593>] ret_from_intr+0x0/0x11 > [ 2052.114361] <EOI> [<ffffffff8102b7f9>] ? native_safe_halt+0xb/0xd > [ 2052.114366] [<ffffffff81010f03>] ? need_resched+0x23/0x2d > [ 2052.114367] [<ffffffff8101102a>] default_idle+0x34/0x4f > [ 2052.114370] [<ffffffff81008325>] cpu_idle+0xaa/0xcc > [ 2052.114373] [<ffffffff81461f2a>] start_secondary+0x24d/0x28e > [ 2052.114374] handlers: > [ 2052.114375] [<ffffffff81332944>] (usb_hcd_irq+0x0/0x7c) > [ 2052.114378] [<ffffffffa00697da>] (rt2800pci_interrupt+0x0/0x18d [rt2800pci]) > [ 2052.114384] Disabling IRQ #17 > > Resolve: > https://bugzilla.redhat.com/show_bug.cgi?id=658451 > > Reported-and-tested-by: Amir Hedayaty <hedayaty@xxxxxxxxx> > Cc: stable@xxxxxxxxxxxxxxx > Signed-off-by: Stanislaw Gruszka <sgruszka@xxxxxxxxxx> I trust that you saw the comments in the other thread. I have reverted this patch and the related rt2x00 one. Perhaps there is some way to convince the hardware not to generate spurious interrupts? John -- John W. Linville Someday the world will need a hero, and you linville@xxxxxxxxxxxxx might be all we have. Be ready. -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
