Comment 2 for bug 664400

i also get this error message in my kernel log. i have 2 ide disks connected to a fake-raid card (pci-ide). this error only occurs when i put stress on the raid array (e.g. compilation or copying a lot of data). it still works after the error but with very poor performance.

i'm on 11.04, Natty Narwhal

i can provide more logs/information if useful!

[ 1450.579785] irq 19: nobody cared (try booting with the "irqpoll" option)
[ 1450.579788] Pid: 0, comm: swapper Not tainted 2.6.38-8-generic #42-Ubuntu
[ 1450.579788] Call Trace:
[ 1450.579789] <IRQ> [<ffffffff810d511b>] ? __report_bad_irq.clone.2+0x2b/0xa0
[ 1450.579795] [<ffffffff810d551a>] ? note_interrupt+0x19a/0x1e0
[ 1450.579796] [<ffffffff810d640d>] ? handle_fasteoi_irq+0xdd/0x110
[ 1450.579798] [<ffffffff8100e9c2>] ? handle_irq+0x22/0x40
[ 1450.579800] [<ffffffff815caebd>] ? do_IRQ+0x5d/0xe0
[ 1450.579801] [<ffffffff815c3213>] ? ret_from_intr+0x0/0x15
[ 1450.579802] <EOI> [<ffffffff8133685a>] ? intel_idle+0xca/0x120
[ 1450.579805] [<ffffffff81336839>] ? intel_idle+0xa9/0x120
[ 1450.579808] [<ffffffff814a3bda>] ? cpuidle_idle_call+0xaa/0x1b0
[ 1450.579810] [<ffffffff8100a266>] ? cpu_idle+0xa6/0xf0
[ 1450.579811] [<ffffffff815a9205>] ? rest_init+0x75/0x80
[ 1450.579813] [<ffffffff81acac8b>] ? start_kernel+0x3f5/0x400
[ 1450.579815] [<ffffffff81aca388>] ? x86_64_start_reservations+0x132/0x136
[ 1450.579816] [<ffffffff81aca253>] ? zap_identity_mappings+0x3e/0x41
[ 1450.579818] [<ffffffff81aca458>] ? x86_64_start_kernel+0xcc/0xdb
[ 1450.579818] handlers:
[ 1450.579819] [<ffffffff81414270>] (ata_bmdma_interrupt+0x0/0x210)
[ 1450.579821] Disabling IRQ #19