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To: Takashi Iwai <tiwai@suse.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: snd_hda_intel 2.6.24-rc2 bug: interrupts don't always work on Lenovo X60s
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From: Roland Dreier <rdreier@cisco.com>
Date: Mon, 12 Nov 2007 08:59:49 -0800
In-Reply-To: <s5hbq9zyktm.wl%tiwai@suse.de> (Takashi Iwai's message of "Mon, 12 Nov 2007 08:39:01 +0100")
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 > You seem to pass unneeded module options to snd-hda-intel driver like
 > MSI enablement.  First, try to remove all these options.

Yes, it's trivial to reproduce without any options:

    [ 2311.759856] ACPI: PCI Interrupt 0000:00:1b.0[B] -> GSI 17 (level, low) -> IRQ 21
    [ 2311.759866] hda_intel: probe_mask set to 0x1 for device 17aa:2010
    [ 2311.759886] PCI: Setting latency timer of device 0000:00:1b.0 to 64
    [ 2312.911309] hda_intel: azx_get_response timeout, switching to polling mode: last cmd=0x003f000c

(By the way, what's wrong with using the enable_msi option?  MSI seems
very solid on Intel platforms, and I prefer avoiding shared interrupts)

 - R.