Re: [PATCH] n_tty: use kmalloc() instead of vmalloc() to avoid crash on armada-xp
From: Russell King - ARM Linux
Date: Thu Mar 12 2015 - 09:06:50 EST
On Wed, Mar 11, 2015 at 06:22:42PM +0300, Stas Sergeev wrote:
> 11.03.2015 18:13, Gregory CLEMENT ÐÐÑÐÑ:
> > On 11/03/2015 16:01, Stas Sergeev wrote:
> >> 11.03.2015 16:14, Russell King - ARM Linux ÐÐÑÐÑ:
> >>> 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.
> OK but it seems I am loosing this region of _physical_ memory:
Correct, because the kernel can't see that physical memory.
If it tries to access the physical memory at those locations, it hits
the SoC registers and PCI instead of memory.
FTTC broadband for 0.8mile line: currently at 10.5Mbps down 400kbps up
according to speedtest.net.
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