Hi Takashi, On Fri, 2018-09-28 at 12:44 +0900, Takashi Sakamoto wrote: > Hi Scott, > > On Sep 24 2018 18:32, Scott Bahling wrote: ... > > > > The kernel was unstable and the system hard locked frequently with the > > patches enabled (with and without the GFP_KERNEL patch). But I was able > > to map out all the controller functions to the bits in the first 16 > > quadlets. I will write up my findings and send them later. > > I'm sorry but I have applied wrong changes to the remote branch for > kernel patch. It includes three issues: > > 1. call vfree() to memory object allocated by kmalloc() > 2. bring kernel oops due to double free corruption of 'tscm->status' > 3. invalid page mapping of 'tscm->status' to process' VMA > > I pushed additional three patches. Would you please test with them? MMAP works fine and stable with the three additional patches. -Scott _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel