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
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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 ` 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
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