On Tue, Dec 28, 2010 at 2:12 PM, Felipe Contreras <felipe.contreras@xxxxxxxxx> wrote: > On Tue, Dec 28, 2010 at 12:56 PM, Ohad Ben-Cohen <ohad@xxxxxxxxxx> wrote: >> I still don't know how exactly you triggered the bug: is gst-dsp >> multithreaded ? and one of its threads invoked proc_un_map() while >> another thread called proc_begin_dma() ? > > I haven't investigated why that happens Btw, I still think you should look into this. The kernel panic will be solved, but you may still have a race there that can lead to data corruption: if proc_un_map will be fast enough, it will acquire the proc_lock mutex before proc_begin_dma(), and then you will miss a cache operation. -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
