[Bugme-new] [Bug 32242] New: irq 18, nobody cared, nor did irqpoll

[Josh Boyer]

On Wed, Mar 30, 2011 at 7:51 PM, Andrew Morton
<akpm at linux-foundation.org> wrote:
>> I got this at boot time of my laptop:
>>
>> [   11.837498] irq 18: nobody cared (try booting with the "irqpoll" option)
>> [   11.837503] Pid: 1618, comm: echo Not tainted 2.6.38.2 #1
>> [   11.837504] Call Trace:
>> [   11.837506]  <IRQ>  [<ffffffff810723af>] ?
>> __report_bad_irq.clone.2+0x30/0x7c
>> [   11.837515]  [<ffffffff81072502>] ? note_interrupt+0x107/0x179
>> [   11.837518]  [<ffffffff81072f8e>] ? handle_fasteoi_irq+0xa6/0xd4
>> [   11.837522]  [<ffffffff810036cc>] ? call_softirq+0x1c/0x28
>> [   11.837525]  [<ffffffff8100514f>] ? handle_irq+0x17/0x1d
>> [   11.837527]  [<ffffffff81004e80>] ? do_IRQ+0x45/0xad
>> [   11.837532]  [<ffffffff812a2d13>] ? ret_from_intr+0x0/0xe
>> [   11.837533]  <EOI>  [<ffffffff81175b76>] ? cfb_imageblit+0x19e/0x434
>> [   11.837539]  [<ffffffff812a2d0e>] ? common_interrupt+0xe/0x13
>> [   11.837543]  [<ffffffff81170fa7>] ? bit_putcs+0x3c0/0x455
>> [   11.837546]  [<ffffffff81170bcb>] ? bit_cursor+0x439/0x455
>> [   11.837549]  [<ffffffff8116b93b>] ? fbcon_putcs+0xef/0xfe
>> [   11.837551]  [<ffffffff81170be7>] ? bit_putcs+0x0/0x455
>> [   11.837554]  [<ffffffff8116ef5b>] ? fbcon_redraw.clone.15+0xcb/0x160
>> [   11.837557]  [<ffffffff8116f60e>] ? fbcon_scroll+0x61e/0xb9d
>> [   11.837561]  [<ffffffff811b2436>] ? scrup+0x67/0xd4
>> [   11.837563]  [<ffffffff811b25c7>] ? lf+0x25/0x58
>> [   11.837566]  [<ffffffff811b58fb>] ? do_con_write+0x8aa/0x1e40
>> [   11.837569]  [<ffffffff81170792>] ? bit_cursor+0x0/0x455
>> [   11.837572]  [<ffffffff811b6ed5>] ? con_write+0xd/0x23
>> [   11.837575]  [<ffffffff811a5593>] ? do_output_char+0x87/0x199
>> [   11.837578]  [<ffffffff811a56d4>] ? process_output+0x2f/0x43
>> [   11.837580]  [<ffffffff811a6063>] ? n_tty_write+0x26b/0x34d
>> [   11.837584]  [<ffffffff8103018a>] ? default_wake_function+0x0/0x11
>> [   11.837587]  [<ffffffff811a3374>] ? tty_write+0x1ad/0x231
>> [   11.837589]  [<ffffffff811a5df8>] ? n_tty_write+0x0/0x34d
>> [   11.837593]  [<ffffffff810b7b60>] ? vfs_write+0xaf/0x129
>> [   11.837596]  [<ffffffff810b7db3>] ? sys_write+0x45/0x6e
>> [   11.837598]  [<ffffffff8100287b>] ? system_call_fastpath+0x16/0x1b
>> [   11.837600] handlers:
>> [   11.837601] [<ffffffffa01f80a7>] (sdhci_irq+0x0/0x4d5 [sdhci])
>> [   11.837621] [<ffffffffa05bb871>] (r852_irq+0x0/0x201 [r852])
>
> So both sdhci_irq and r852_irq were looking at the IRQ, but neither of
> them were interested in it.
>
> Could be that the bug lies in neither driver, at that something went
> wrong with the system setup.  ACPI?

I don't see anything that would implicate the MTD layer at all.  SDHCI
is unrelated to MTD.  Just an FYI.

josh