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Date: Tue, 10 Mar 2020 08:40:18 +0100 From: Christoph Hellwig <hch@....de> To: He Zhe <zhe.he@...driver.com> Cc: Christoph Hellwig <hch@....de>, jack@...e.cz, Jens Axboe <axboe@...nel.dk>, viro@...iv.linux.org.uk, bvanassche@....org, keith.busch@...el.com, tglx@...utronix.de, mwilck@...e.com, yuyufen@...wei.com, linux-block@...r.kernel.org, linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: disk revalidation updates and OOM On Mon, Mar 02, 2020 at 11:55:44AM +0800, He Zhe wrote: > Hi, > > Since the following commit > https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git/commit/?h=for-5.5/disk-revalidate&id=6917d0689993f46d97d40dd66c601d0fd5b1dbdd > until now(v5.6-rc4), > > If we start udisksd service of systemd(v244), systemd-udevd will scan /dev/hdc > (the cdrom device created by default in qemu(v4.2.0)). systemd-udevd will > endlessly run and cause OOM. > > > > It works well by reverting the following series of commits. > > 979c690d block: move clearing bd_invalidated into check_disk_size_change > f0b870d block: remove (__)blkdev_reread_part as an exported API > 142fe8f block: fix bdev_disk_changed for non-partitioned devices > a1548b6 block: move rescan_partitions to fs/block_dev.c > 6917d06 block: merge invalidate_partitions into rescan_partitions So this is the exact requirement of commits to be reverted from a bisect or just a first guess?
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