jeanseb reported this problem with a PATA PIIX controller: > [ 1.324685] irq 5: nobody cared (try booting with the "irqpoll" option) > [ 1.324730] Pid: 194, comm: scsi_eh_0 Not tainted 2.6.32-5-amd64 #1 > [ 1.324732] Call Trace: > [ 1.324734] <IRQ> [<ffffffff810952cd>] ? __report_bad_irq+0x30/0x7d > [ 1.324745] [<ffffffff8109541f>] ? note_interrupt+0x105/0x16e > [ 1.324749] [<ffffffff81095b26>] ? handle_level_irq+0x80/0xc3 > [ 1.324753] [<ffffffff81013957>] ? handle_irq+0x17/0x1d > [ 1.324756] [<ffffffff81012fb1>] ? do_IRQ+0x57/0xb6 > [ 1.324759] [<ffffffff810114d3>] ? ret_from_intr+0x0/0x11 > [ 1.324762] [<ffffffff81014fa3>] ? mask_and_ack_8259A+0x0/0xca > [ 1.324767] [<ffffffff81053967>] ? __do_softirq+0x6e/0x19f > [ 1.324770] [<ffffffff81011cac>] ? call_softirq+0x1c/0x30 > [ 1.324773] [<ffffffff81013903>] ? do_softirq+0x3f/0x7c > [ 1.324776] [<ffffffff81053845>] ? irq_exit+0x36/0x76 > [ 1.324779] [<ffffffff81012ffa>] ? do_IRQ+0xa0/0xb6 > [ 1.324782] [<ffffffff810114d3>] ? ret_from_intr+0x0/0x11 > [ 1.324784] <EOI> [<ffffffff812fa7f5>] ? _spin_unlock_irqrestore+0x8/0xe > [ 1.324798] [<ffffffffa006bb64>] ? ata_exec_internal_sg+0x239/0x45b [libata] > [ 1.324802] [<ffffffff8105a549>] ? del_timer_sync+0xc/0x16 > [ 1.324807] [<ffffffff811946c9>] ? delay_tsc+0x30/0x73 > [ 1.324813] [<ffffffffa006be09>] ? ata_exec_internal+0x83/0x92 [libata] > [ 1.324820] [<ffffffffa007732c>] ? ata_sff_check_status+0x10/0x13 [libata] > [ 1.324827] [<ffffffffa006c0d2>] ? ata_do_dev_read_id+0x21/0x23 [libata] > [ 1.324833] [<ffffffffa006c1c8>] ? ata_dev_read_id+0xf4/0x3c2 [libata] > [ 1.324839] [<ffffffffa007783c>] ? ata_sff_postreset+0x0/0x73 [libata] > [ 1.324846] [<ffffffffa0074e1d>] ? ata_eh_schedule_probe+0xb3/0xe0 [libata] > [ 1.324852] [<ffffffffa0075520>] ? ata_eh_recover+0x6d6/0xc2a [libata] > [ 1.324856] [<ffffffff8103fe62>] ? update_curr+0xa6/0x147 > [ 1.324862] [<ffffffffa007783c>] ? ata_sff_postreset+0x0/0x73 [libata] > [ 1.324868] [<ffffffffa007921c>] ? ata_sff_softreset+0x0/0x130 [libata] > [ 1.324873] [<ffffffffa00d3578>] ? piix_pata_prereset+0x0/0x51 [ata_piix] > [ 1.324879] [<ffffffffa007921c>] ? ata_sff_softreset+0x0/0x130 [libata] > [ 1.324885] [<ffffffffa007783c>] ? ata_sff_postreset+0x0/0x73 [libata] > [ 1.324890] [<ffffffffa007921c>] ? ata_sff_softreset+0x0/0x130 [libata] > [ 1.324894] [<ffffffffa00d3578>] ? piix_pata_prereset+0x0/0x51 [ata_piix] > [ 1.324901] [<ffffffffa0075bfc>] ? ata_do_eh+0x3b/0x82 [libata] > [ 1.324907] [<ffffffffa007652b>] ? ata_scsi_error+0x342/0x67a [libata] > [ 1.324911] [<ffffffff81047f57>] ? finish_task_switch+0x3a/0xa7 > [ 1.324919] [<ffffffffa00049dc>] ? scsi_error_handler+0x0/0x5b5 [scsi_mod] > [ 1.324925] [<ffffffffa0004aea>] ? scsi_error_handler+0x10e/0x5b5 [scsi_mod] > [ 1.324931] [<ffffffffa00049dc>] ? scsi_error_handler+0x0/0x5b5 [scsi_mod] > [ 1.324934] [<ffffffff8106482d>] ? kthread+0x79/0x81 > [ 1.324937] [<ffffffff81011baa>] ? child_rip+0xa/0x20 > [ 1.324940] [<ffffffff810647b4>] ? kthread+0x0/0x81 > [ 1.324943] [<ffffffff81011ba0>] ? child_rip+0x0/0x20 > [ 1.324944] handlers: > [ 1.324977] [<ffffffffa00d384e>] (piix_interrupt+0x0/0x192 [ata_piix]) > [ 1.325076] Disabling IRQ #5 > [ 1.347126] ata1.00: ATAPI: DVD-RW IDE1108, VER B018, max UDMA/66 > [ 1.347150] ata1.00: limited to UDMA/33 due to 40-wire cable (more details at <http://bugs.debian.org/585556>). This is in Debian kernel version 2.6.32-15 which is based on stable version 2.6.32.14 but has your backported spurious IRQ handling patch taken from SLE11 (References: bnc#445872, bnc#589449). Any idea what's going wrong here? Is there a piece missing from that fix? Ben. -- Ben Hutchings Once a job is fouled up, anything done to improve it makes it worse.
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