From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tejun Heo <htejun@gmail.com>
Subject: Re: PROBLEM: WARNING: at kernel/irq/manage.c:158 enable_irq() during
 boot
Date: Mon, 10 Dec 2007 18:35:27 +0900
Message-ID: <475D085F.9010307@gmail.com>
References: <fd0490a021a8.21a8fd0490a0@comp.waw.pl>
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To: wojtekz@comp.waw.pl
Cc: linux-ide@vger.kernel.org, Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

(cc'ing Bartlomiej)
Hello,

wojtekz@comp.waw.pl wrote:
> Dec  6 11:58:23 titanium kernel: WARNING: at kernel/irq/manage.c:158 enable_irq()
> Dec  6 11:58:23 titanium kernel:  [<c014b5c3>] enable_irq+0x6e/0xa2
> Dec  6 11:58:23 titanium kernel:  [<f887b783>] probe_hwif+0x6d8/0x7c7 [ide_core]
> Dec  6 11:58:23 titanium kernel:  [<f887c0be>] probe_hwif_init_with_fixup+0xc/0x80 [ide_core]
> Dec  6 11:58:23 titanium kernel:  [<c0190007>] elf_core_dump+0x627/0xb60
> Dec  6 11:58:23 titanium kernel:  [<f887df7b>] ide_setup_pci_device+0x6f/0x9c [ide_core]
> Dec  6 11:58:23 titanium kernel:  [<f883b1a7>] pdc202new_init_one+0xf/0x10 [pdc202xx_new]
> Dec  6 11:58:23 titanium kernel:  [<c01d94de>] pci_device_probe+0x36/0x55
> Dec  6 11:58:23 titanium kernel:  [<c021f8cb>] driver_probe_device+0xc8/0x14b
> Dec  6 11:58:23 titanium kernel:  [<c021fa37>] __driver_attach+0x52/0x87
> Dec  6 11:58:23 titanium kernel:  [<c021eecc>] bus_for_each_dev+0x35/0x57
> Dec  6 11:58:23 titanium kernel:  [<c021f748>] driver_attach+0x16/0x18
> Dec  6 11:58:23 titanium kernel:  [<c021f9e5>] __driver_attach+0x0/0x87
> Dec  6 11:58:23 titanium kernel:  [<c021f1a8>] bus_add_driver+0x6d/0x153
> Dec  6 11:58:23 titanium kernel:  [<c01d961d>] __pci_register_driver+0x4b/0x77
> Dec  6 11:58:23 titanium kernel:  [<c0143a39>] sys_init_module+0x1525/0x15fb
> Dec  6 11:58:23 titanium kernel:  [<f8879af9>] ide_config_drive_speed+0x0/0x314 [ide_core]
> Dec  6 11:58:23 titanium kernel:  [<c0103f9e>] syscall_call+0x7/0xb
> Dec  6 11:58:23 titanium kernel:  [<c02b0000>] wireless_nlevent_process+0x15/0x31
> Dec  6 11:58:23 titanium kernel:  =======================

That means IRQ is being enabled more times than it should be.  Can you
please give a shot at 2.6.24-rc4 and see whether the problem is still there?

-- 
tejun