From: Jiri Slaby <jslaby@suse.cz>
To: Johannes Weiner <hannes@cmpxchg.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Ralf Baechle <ralf@linux-mips.org>,
x86@kernel.org, stable@kernel.org
Subject: Re: [PATCH] bootmem: avoid DMA32 zone by default
Date: Thu, 21 Jan 2010 00:12:20 +0100 [thread overview]
Message-ID: <4B578DD4.90908@suse.cz> (raw)
In-Reply-To: <1264027998-15257-1-git-send-email-hannes@cmpxchg.org>
On 01/20/2010 11:53 PM, Johannes Weiner wrote:
> I cc'd stable because this affects already released kernels. But since this is
> the first report of DMA32 memory exhaustion through bootmem that I hear of,
Just for how the setup look like:
128G of RAM, flat mapping
sizeof(struct page)=56
0-1.75G mem_map
1.75-2G vfs caches, console and others. initrd reservation
2-4G reserved by BIOS
Kernel panics with out of memory when swiotlb tries to allocate 64M of
"low" bootmem.
--
js
suse labs
WARNING: multiple messages have this Message-ID (diff)
From: Jiri Slaby <jslaby@suse.cz>
To: Johannes Weiner <hannes@cmpxchg.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Ralf Baechle <ralf@linux-mips.org>,
x86@kernel.org, stable@kernel.org
Subject: Re: [PATCH] bootmem: avoid DMA32 zone by default
Date: Thu, 21 Jan 2010 00:12:20 +0100 [thread overview]
Message-ID: <4B578DD4.90908@suse.cz> (raw)
In-Reply-To: <1264027998-15257-1-git-send-email-hannes@cmpxchg.org>
On 01/20/2010 11:53 PM, Johannes Weiner wrote:
> I cc'd stable because this affects already released kernels. But since this is
> the first report of DMA32 memory exhaustion through bootmem that I hear of,
Just for how the setup look like:
128G of RAM, flat mapping
sizeof(struct page)=56
0-1.75G mem_map
1.75-2G vfs caches, console and others. initrd reservation
2-4G reserved by BIOS
Kernel panics with out of memory when swiotlb tries to allocate 64M of
"low" bootmem.
--
js
suse labs
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2010-01-20 23:12 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-18 22:56 [RFC 1/1] bootmem: move big allocations behing 4G Jiri Slaby
2010-01-18 22:56 ` Jiri Slaby
2010-01-19 14:33 ` Johannes Weiner
2010-01-19 14:33 ` Johannes Weiner
2010-01-19 22:02 ` Jiri Slaby
2010-01-19 22:02 ` Jiri Slaby
2010-01-20 13:50 ` Jiri Slaby
2010-01-20 13:50 ` Jiri Slaby
2010-01-20 15:30 ` Johannes Weiner
2010-01-20 15:30 ` Johannes Weiner
2010-01-20 22:53 ` [PATCH] bootmem: avoid DMA32 zone by default Johannes Weiner
2010-01-20 22:53 ` Johannes Weiner
2010-01-20 23:12 ` Jiri Slaby [this message]
2010-01-20 23:12 ` Jiri Slaby
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=4B578DD4.90908@suse.cz \
--to=jslaby@suse.cz \
--cc=akpm@linux-foundation.org \
--cc=hannes@cmpxchg.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=ralf@linux-mips.org \
--cc=stable@kernel.org \
--cc=x86@kernel.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.