Messages in this thread | | | Date | Wed, 18 Oct 2006 19:12:50 +0200 | From | Takashi Iwai <> | Subject | Re: [Alsa-devel] [RFC: 2.6.19 patch] snd-hda-intel: default MSI to off |
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At Wed, 18 Oct 2006 10:02:19 -0700, Stephen Hemminger wrote: > > On Wed, 18 Oct 2006 12:24:54 +0200 > Takashi Iwai <tiwai@suse.de> wrote: > > > At Tue, 17 Oct 2006 14:40:53 -0700, > > Stephen Hemminger wrote: > > > > > > On Tue, 17 Oct 2006 23:13:01 +0200 > > > Adrian Bunk <bunk@stusta.de> wrote: > > > > > > > On Thu, Oct 05, 2006 at 11:08:57PM +0200, Prakash Punnoor wrote: > > > > > Am Donnerstag 05 Oktober 2006 19:30 schrieb Fatih A????c??: > > > > > > 2006/10/5, Prakash Punnoor <prakash@punnoor.de>: > > > > > > > Hi, > > > > > > > > > > > > > > subjects say it all. Without irqpoll my nic doesn't work anymore. I added > > > > > > > Ingo > > > > > > > to cc, as my IRQs look different, so it may be a prob of APIC routing or > > > > > > > the > > > > > > > like. > > > > > > > > > > > > Can you try booting with pci=nomsi ? I have a similar problem with my > > > > > > > > > > I used snd-hda-intel.disable_msi=1 and this actually helped! Now the nforce > > > > > nic works w/o problems. So it was the audio driver causing havoc on the nic. > > > > >... > > > > > > > > Unless someone finds and fixes what causes such problems, I'd therefore > > > > suggest the patch below to let MSI support to be turned off by default. > > > > > > > > cu > > > > Adrian > > > > > > > > > > It shouldn't be that hard to write a small bit of code to force an interrupt > > > and catch it, that's what other drivers do to workaround the BIOS braindamage > > > that seems to be rampant (until M$ Vista comes out and supports MSI). > > > > OK, what about a patch like below? > > > > It's against the latest ALSA tree, so please pull alsa.git from > > git://kernel.org/pub/scm/linux/kernel/git/perex/alsa.git > > before applying it (this tree includes only patches to be pushed to > > 2.6.19). > > > > > > Takashi > > > > Don't you need to check return value from pci_enable_msi()?
Yes, it would be better to check the value and reset chip->msi if not successful. But it's not a fatal error, so the current code should work.
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