* Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> [170925 01:06]: > On Thu, Sep 21, 2017 at 10:28:11AM -0700, Tony Lindgren wrote: > > * Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> [170914 23:55]: > > > On Wed, Sep 13, 2017 at 09:31:27AM -0700, Tony Lindgren wrote: > > > > Yes I disabled CONFIG_HIGHMEM and n900 boots. To disable it, > > > > you need to remove it from arch/arm/mach-omap2/Kconfig that > > > > selects it if ARCH_OMAP2PLUS_TYPICAL is selected. > > > > > > Okay. Problem would be related to address traslation. I'd like to > > > check address traslation more. Could you apply following patch and > > > test it? And, please send me the dmesg log and your kernel config. > > > Please test this with CONFIG_DEBUG_VIRTUAL = n and CONFIG_CMA_DEBUG=y and > > > CONFIG_HIGHMEM=y and with kernel bootparam 'ignore_loglevel'. > > > > > > It would be really appreciate if you send me two logs for before/after > > > commit 9caf25f996e8. > > > > Sorry for the delays, I finally got around testing this for you. > > No problem! I really appreciate your help! > > > Compile with your patch failed for modules with __virt_to_phys_debug > > being undefined so I added EXPORT_SYMBOL there. I also enabled DEBUG_LL > > and EARLYPRINTK to get output. > > > > Below is dmesg output for 9caf25f996e8 + your patch. I'll send you > > the full logs separately. > > Hmm...there is only one caller for the CMA memory, that is, atomic_pool_init(). > Could you test one more time with 9caf25f996e8 + following patch? I'd like to > know the actual user for the CMA memory. Hmm not getting any stack with that patch after manually applying it because of tabs to spaces mangling. Regards, Tony > -------------------------->8------------------------ > diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c > index 519c294..c68f34a 100644 > --- a/arch/arm/mm/dma-mapping.c > +++ b/arch/arm/mm/dma-mapping.c > @@ -587,6 +587,8 @@ static void *__alloc_from_pool(size_t size, struct page **ret_page) > ptr = (void *)val; > } > > + dump_stack(); > + > return ptr; > } > -- 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
