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SubjectRe: __alloc_pages: 0-order allocation failed.
Date
On September 7, 2001 10:43 pm, Daniel Phillips wrote:
> On September 7, 2001 03:06 pm, Martin MOKREJ? wrote:
> > On Tue, 4 Sep 2001, Daniel Phillips wrote:
> >
> > > On September 4, 2001 03:11 pm, Martin MOKREJ? wrote:
> > > > Hi,
> > > > I'm getting the above error on 2.4.9 kernel with kernel HIGHMEM option
> > > > enabled to 2GB, 2x Intel PentiumIII. The machine has 1GB RAM
> > > > physically. Althougj I've found many report to linux-kernel list during
> > > > past months, not a real solution. Maybe only:
> > > > http://www.alsa-project.org/archive/alsa-devel/msg08629.html
> > >
> > > Try 2.4.10-pre4.
> >
> >
> > Wow, I've just now realized that I get two types of error message:
> > __alloc_pages: 0-order allocatiocation failed (gfp=0x70/1).
> > __alloc_pages: 0-order allocation failed (gfp=0x70/1).
> >
> > We are using LVM and ReiserFS, HIGMEM kernel.
> >
> > Maybe it helps to track it down. Any ideas?
>
> printk has a limited amount of space for buffering messages, a ring buffer
> (sort of) and will start dropping text when the buffer fills up, so as not
> to slow the kernel down and/or interfere with interrupts. So that is why
> two lines of output got combined above, they are all the same message.
>
> The gfp=0x70/1 identifies the failure as GFP_NOIO, PF_MEMALLOC, which by
> process of eliminate, comes from alloc_bounce_page. Marcelo's patch for
> bounce buffer allocation is *not* in 2.4.10-pre4, so we haven't proved
> anything yet.
>
> You can get the patch from Marcelo's post on lkml on Aug 22 under the
> subject "Re: With Daniel Phillips Patch (was: aic7xxx with 2.4.9 on
> 7899P)". Note the correction posted in his next message in the thread.
> It applies to 2.4.9. Please try it and see if these failures go away.
>
> This patch *should* be in the main tree soon. Some testing by you would
> help a lot.

Correction, it's in Linus's tree all write, with some changed names. So...
conclusion: Marcelo's approach is not airtight. Or there was an error in
translation. Arjan has a patch going in soon to the -ac tree, so stay
tuned.
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