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Date:   Mon, 1 Feb 2021 13:22:04 +0100
From:   Christoph Hellwig <hch@lst.de>
To:     Matthew Wilcox <willy@infradead.org>
Cc:     Christoph Hellwig <hch@lst.de>, Jens Axboe <axboe@kernel.dk>,
        Song Liu <song@kernel.org>, Jaegeuk Kim <jaegeuk@kernel.org>,
        Chao Yu <chao@kernel.org>,
        Philipp Reisner <philipp.reisner@linbit.com>,
        Lars Ellenberg <lars.ellenberg@linbit.com>,
        Coly Li <colyli@suse.de>, Mike Snitzer <snitzer@redhat.com>,
        Josef Bacik <josef@toxicpanda.com>,
        David Sterba <dsterba@suse.com>,
        Damien Le Moal <damien.lemoal@wdc.com>,
        Naohiro Aota <naohiro.aota@wdc.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Ryusuke Konishi <konishi.ryusuke@gmail.com>,
        linux-nilfs@vger.kernel.org, dm-devel@redhat.com,
        linux-f2fs-devel@lists.sourceforge.net,
        linux-block@vger.kernel.org, drbd-dev@lists.linbit.com,
        linux-bcache@vger.kernel.org, linux-raid@vger.kernel.org,
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Subject: Re: [PATCH 04/17] block: split bio_kmalloc from bio_alloc_bioset
Message-ID: <20210201122204.GA22727@lst.de>
References: <20210126145247.1964410-1-hch@lst.de> <20210126145247.1964410-5-hch@lst.de> <20210130035646.GH308988@casper.infradead.org>
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On Sat, Jan 30, 2021 at 03:56:46AM +0000, Matthew Wilcox wrote:
> On Tue, Jan 26, 2021 at 03:52:34PM +0100, Christoph Hellwig wrote:
> > bio_kmalloc shares almost no logic with the bio_set based fast path
> > in bio_alloc_bioset.  Split it into an entirely separate implementation.
> > 
> > Signed-off-by: Christoph Hellwig <hch@lst.de>
> > ---
> >  block/bio.c         | 167 ++++++++++++++++++++++----------------------
> >  include/linux/bio.h |   6 +-
> >  2 files changed, 86 insertions(+), 87 deletions(-)
> 
> This patch causes current linux-next to OOM for me when running xfstests
> after about ten minutes.  Haven't looked into why yet, this is just the
> results of a git bisect.

I've run tests on linux-next all weekend and could not reproduce
the issue.  Can you share your .config?