On Thu, Nov 09, 2017 at 09:36:39AM +0900, Joonsoo Kim wrote: > On Wed, Nov 08, 2017 at 04:11:13PM -0800, Tony Lindgren wrote: > > * Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> [171109 00:05]: > > > On Wed, Nov 08, 2017 at 08:34:13AM -0800, Tony Lindgren wrote: > > > > * Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> [171108 07:43]: > > > > > On Tue, Nov 07, 2017 at 07:48:42AM -0800, Tony Lindgren wrote: > > > > > > So it seems the issue is currently at the atomic_pool_init() > > > > > > related code? > > > > > > > > > > Yes, your test showed it although I can't find any clue in > > > > > atomic_pool_init(). > > > > > > > > > > Could you test updated branch? > > > > > > > > > > https://github.com/JoonsooKim/linux/tree/cma-debug4-next-20180901 > > > > > > > > > > There are two relevant commits. > > > > > > > > > > arm/dma: stop dma allocation before __dma_alloc_remap() > > > > > arm/dma: disable atomic pool after dma allocation > > > > > > > > > > atomic pool initialization will be done partially to check > > > > > exact point of failure. These are brain-dead commits however I have no > > > > > idea what's going on here until now. :/ > > > > > > > > OK that booted, dmesg output below. Hopefully that provides > > > > you with some more clues. > > > > > > Thanks! > > > > > > Could you let me know which one is booted? Both of them? or just top > > > commit ("arm/dma: stop dma allocation before __dma_alloc_remap()")? > > > > Oh OK. Only the top commit boots. > > Okay! I will try to analyze! > Could you test following two commits on my updated branch? "arm/dma: vmalloc area allocation" "arm/dma: defer atomic pool initialization" I suspect that changed virtual address of the sram due to early __dma_alloc_remap() call causes the problem and above two commits test this theory. Thanks. -- 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
