From: Pekka Enberg <penberg@gmail.com>
To: Matthew Wilcox <willy@infradead.org>
Cc: Chris Murphy <lists@colorremedies.com>,
Linux Memory Management List <linux-mm@kvack.org>,
Dan Williams <dan.j.williams@intel.com>
Subject: Re: 5.8.0rc3 page allocation failure: order:0, mode:0x40810
Date: Sat, 4 Jul 2020 14:49:32 +0300 [thread overview]
Message-ID: <CAOJsxLEi=TQGrQm+ksdaZUE8TQijJ-66dxZ_DNR3xkoM9xDbAQ@mail.gmail.com> (raw)
In-Reply-To: <20200704113722.GM25523@casper.infradead.org>
Hi Matthew,
On Sat, Jul 4, 2020 at 2:37 PM Matthew Wilcox <willy@infradead.org> wrote:
>
> On Sat, Jul 04, 2020 at 01:21:05AM -0600, Chris Murphy wrote:
> > Hi,
> >
> > This seems to be a one off - I'm not even sure what was happening at
> > the time. Possibly running a qemu-kvm VM.
> >
> > 5.8.0-0.rc3.1.fc33.x86_64+debug
> > i7-2820QM
> > MemTotal: 8021304 kB
> > $ swapon
> > NAME TYPE SIZE USED PRIO
> > /dev/sda5 partition 10.4G 0B -2
> > /dev/zram0 partition 3.8G 9M 100
> > $ zramctl
> > NAME ALGORITHM DISKSIZE DATA COMPR TOTAL STREAMS MOUNTPOINT
> > /dev/zram0 lzo-rle 3.8G 7.8M 2.3M 4.5M 8 [SWAP]
> >
> >
> >
> >
> > [126841.385050] swapper/2: page allocation failure: order:0,
> > mode:0x40810(GFP_NOWAIT|__GFP_COMP|__GFP_RECLAIMABLE),
>
> This is one for Dan; he decided to use GFP_NOWAIT in commit
> 0abdd7a81b7e3fd781d7fabcca49501852bba17e
Why is that a problem? Unless I am missing something, there's plenty
of free pages available for the slab allocation:
> > [126841.385277] Node 0 Normal: 366*4kB (UME) 413*8kB (UME) 76*16kB
> > (UME) 18*32kB (UME) 20*64kB (UME) 16*128kB (UME) 10*256kB (UME)
> > 8*512kB (ME) 5*1024kB (UE) 2*2048kB (UM) 6*4096kB (M) = 50336kB
next prev parent reply other threads:[~2020-07-04 11:49 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-04 7:21 Chris Murphy
2020-07-04 8:02 ` Pekka Enberg
2020-07-04 11:37 ` Matthew Wilcox
2020-07-04 11:49 ` Pekka Enberg [this message]
2020-07-04 12:01 ` Matthew Wilcox
2020-07-04 18:33 ` Pekka Enberg
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