Messages in this thread | | | Date | Wed, 11 Mar 2015 16:13:05 +0100 | From | Gregory CLEMENT <> | Subject | Re: [PATCH] n_tty: use kmalloc() instead of vmalloc() to avoid crash on armada-xp |
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On 11/03/2015 16:01, Stas Sergeev wrote: > 11.03.2015 16:14, Russell King - ARM Linux пишет: >> On Wed, Mar 11, 2015 at 01:44:57PM +0100, Gregory CLEMENT wrote: >>> Hi Stas, >>> >>> On 10/03/2015 17:54, Stas Sergeev wrote: >>>> Hello, the patch below is needed for a successful boot on armada-xp. >>>> >>> I am really surprised by this patch because I used the Armada XP based >>> board in a daily base and I never saw this issue. >> Can you provide some details about your board - does it have 8GB of >> memory, ranging from 0-0xf0000000, and 4G-8G ? > I wonder about this 256Mb memory hole.
This is where the SoC registers are.
> There is only one dimm for whole 8Gb. > It seems 0xf000000-0xffffffff is used for PCI though: > --- > > 0xf3000000-0xf303ffff 64bit] > [ 119.290027] pci 0000:00:00.0: BAR 2: set to [mem > 0xf3000000-0xf303ffff 64bit] (PCI address [0xf3000000-0xf303ffff]) > [ 119.300509] pci 0000:00:00.0: BAR 0: assigned [mem > 0xf3040000-0xf305ffff 64bit] > [ 119.307883] pci 0000:00:00.0: BAR 0: set to [mem > 0xf3040000-0xf305ffff 64bit] (PCI address [0xf3040000-0xf305ffff]) > [ 119.318367] pci 0000:00:00.0: BAR 6: assigned [mem > 0xf3060000-0xf306ffff pref] > > --- > > Does this mean that the 256Mb of physical memory is > completely unaccessable on this board? >
-- Gregory Clement, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com
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