From: Takashi Iwai <tiwai@suse.de>
To: linux-mm@kvack.org
Subject: OOM-killer for zone DMA?
Date: Fri, 27 Aug 2004 19:02:07 +0200 [thread overview]
Message-ID: <s5hoekwjz00.wl@alsa2.suse.de> (raw)
Hi,
In the primary version of my DMA allocation patch, I tried to allocate
pages with GFP_DMA as much as possible, then allocate with GFP_KERNEL
as fallback. But this doesn't work. When the zone DMA is exhausted,
I oberseved endless OOM-killer.
Is this a desired behavior? I don't think triggering OOM-killer for
zone DMA makes sense, because apps don't allocate pages in this
area...
Note that the driver tried to allocate bunch of single pages with
GFP_DMA, not big pages, by calling dma_alloc_coherent with GFP_DMA
only (no __GFP_REPEAT or such modifiers).
Takashi
--
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:"aart@kvack.org"> aart@kvack.org </a>
next reply other threads:[~2004-08-27 17:02 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-27 17:02 Takashi Iwai [this message]
2004-08-27 19:01 ` OOM-killer for zone DMA? Marcelo Tosatti
2004-08-28 6:04 ` William Lee Irwin III
2004-08-30 9:35 ` Takashi Iwai
2004-08-28 6:10 ` Nick Piggin
2004-08-30 9:39 ` Takashi Iwai
2004-08-30 10:36 ` Nick Piggin
2004-08-30 15:41 ` Takashi Iwai
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=s5hoekwjz00.wl@alsa2.suse.de \
--to=tiwai@suse.de \
--cc=linux-mm@kvack.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.