From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: fix bug which VMALLOC_START is lowwer than 0xf0000000
Date: Thu, 3 Sep 2015 09:00:28 +0100 [thread overview]
Message-ID: <20150903080028.GS21084@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <1441247087-10342-1-git-send-email-ytk.lee@samsung.com>
On Thu, Sep 03, 2015 at 11:24:47AM +0900, Yongtaek Lee wrote:
> default value of vmalloc_min was set 0xf0000000 for ARM by commit
> 0536bdf3. But actually vmalloc_min is 0xef800000 not 0xf0000000.
>
> VMALLOC_END - (240 << 20) - VMALLOC_OFFSET)
> 0xff000000 - 0x0f000000 - 0x00800000 = 0xef800000
>
> In case of 768MB ram without CONFIG_HIGHMEM=y, last 8MB could not be
> allocated. Kernel log also print out warning message as below.
> "Truncating RAM at 80000000-afffffff to -af7fffff (vmalloc region overlap)."
>
> Although it could be solved by state "vmalloc=size" in cmdline but i think
> it would be better to change default value to 232 from 240.
>
> Signed-off-by: Yongtaek Lee <ytk.lee@samsung.com>
I fail to see what the problem is here. You're adjusting the size of the
vmalloc space to accomodate the size of RAM you have. That's not a bug.
--
FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up
according to speedtest.net.
next prev parent reply other threads:[~2015-09-03 8:00 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-03 2:24 [PATCH] ARM: fix bug which VMALLOC_START is lowwer than 0xf0000000 Yongtaek Lee
2015-09-03 5:11 ` [PATCH] ARM: fix bug which lowmem size is limited to 760MB Yongtaek Lee
2015-09-03 8:00 ` Russell King - ARM Linux [this message]
2015-09-03 8:28 ` [PATCH] ARM: fix bug which VMALLOC_START is lowwer than 0xf0000000 Yongtaek Lee
2015-09-03 8:34 ` Lucas Stach
2015-09-03 8:43 ` Yongtaek Lee
2015-09-03 9:10 ` Russell King - ARM Linux
2015-09-03 10:30 ` [PATCH] ARM: fix bug which lowmem size is limited to 760MB Yongtaek Lee
2015-09-04 1:24 ` Nicolas Pitre
2015-09-07 11:41 ` Arnd Bergmann
2015-09-07 15:34 ` Nicolas Pitre
2015-09-07 15:45 ` Arnd Bergmann
2015-09-07 15:49 ` Nicolas Pitre
2015-09-07 19:40 ` Nicolas Pitre
2015-09-08 0:10 ` Russell King - ARM Linux
2015-09-08 2:01 ` Nicolas Pitre
2015-09-08 8:03 ` Russell King - ARM Linux
2015-09-08 14:58 ` Nicolas Pitre
2015-09-03 9:07 ` [PATCH] ARM: fix bug which VMALLOC_START is lowwer than 0xf0000000 Russell King - ARM Linux
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20150903080028.GS21084@n2100.arm.linux.org.uk \
--to=linux@arm.linux.org.uk \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).