On 6/03/2008, at 11:18 PM, Takashi Iwai wrote:
At Wed, 05 Mar 2008 21:14:23 +1300, Michael Cree wrote:
I recently installed a M-Audio Revolution 7.1 sound card into DEC/ Compaq Alpha XP1000, and it is causing crashes and complete lock ups of the computer when I attempt to play sound through the sound card. Since this is my main computer I shifted the card to a DEC Alpha PWS500au and it causes the same lock ups there, and in one case a kernel oops made it into the system log (listed below).
The oops looks related with mmap. Maybe alpha doesn't support the mmap of coherent DMA pages like intel architectures allow?
I have just applied the recently announced patch (alpha: fix ALSA DMA mmap crash) in the -mm kernel tree to the 2.6.24.3 kernel I am running. The M-Audio Revolution 7.1 card now works fine on both Compaq Alpha XP1000 and the DEC Alpha PWS600au.
Cheers Michael.