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Subjectsdhci: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter - disabling IRQ
I'm using my brand new HP 8510w laptop with kernel 2.6.25 (Debian kernel 
2.6.25-2-amd64 version 2.6.25-5 to be exact) and the integrated memory
card reader is detected by the sdhci kernel module.

However, about 10 minutes after boot I get the following message in
dmesg (pid and process may change of course):

[ 697.844419] irq 19: nobody cared (try booting with the "irqpoll" option)
[ 697.844434] Pid: 6068, comm: ca-certificates Tainted: G A 2.6.25-2-amd64 #1
[ 697.844439]
[ 697.844441] Call Trace:
[ 697.844445] <IRQ> [<ffffffff8024ded6>] tick_handle_oneshot_broadcast+0x9e/0xce
[ 697.844501] [<ffffffff8026ca2f>] __report_bad_irq+0x30/0x72
[ 697.844511] [<ffffffff8026cc6e>] note_interrupt+0x1fd/0x23f
[ 697.844531] [<ffffffff8026d4fb>] handle_fasteoi_irq+0xa5/0xc8
[ 697.844548] [<ffffffff8020f41c>] do_IRQ+0x6d/0xd9
[ 697.844559] [<ffffffff8020c34d>] ret_from_intr+0x0/0x19
[ 697.844564] <EOI>
[ 697.844589] handlers:
[ 697.844592] [<ffffffff883079e4>] (sdhci_irq+0x0/0x609 [sdhci])
[ 697.844607] Disabling IRQ #19

(the "taint" comes from a custom DSDT which adjusts fan speeds and
nothing more).

lspci says:
02:06.0 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev b9)
02:06.1 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev b9)
02:06.2 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 03)
02:06.3 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 20)
02:06.4 System peripheral: Ricoh Co Ltd R5C843 MMC Host Controller (rev ff)

lspci -n says:
02:06.0 0607: 1180:0476 (rev b9)
02:06.1 0607: 1180:0476 (rev b9)
02:06.2 0c00: 1180:0832 (rev 03)
02:06.3 0805: 1180:0822 (rev 20)
02:06.4 0880: 1180:0843 (rev ff)

Any suggestions?

--
David Härdeman
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