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From: Daeho Jeong <daeho.jeong@samsung.com>
To: Theodore Ts'o <tytso@mit.edu>
Cc: 정대호 <daeho.jeong@samsung.com>,
	"linux-ext4@vger.kernel.org" <linux-ext4@vger.kernel.org>,
	"daehojng@gmail.com" <daehojng@gmail.com>
Subject: Re: A question about EXT4_INODE_JOURNAL_DATA flag with delalloc
Date: Wed, 12 Aug 2015 06:07:08 +0000 (GMT)	[thread overview]
Message-ID: <790473091.764741439359628318.JavaMail.weblogic@epmlwas06a> (raw)

Ted, thanks for your response.

I just have tested the below test by temporally enabling per-file data journalling with delalloc
and it didn't cause kernel oops any more. I will check further whether per-file data journalling
while allowing the rest of the file system to be using delalloc will cause another type of problem
or not.

 dd if=/dev/zero of=/mnt/test1/file bs=1M count=4
 chattr +j /mnt/test1/file
 dd if=/dev/zero of=/mnt/test1/file bs=1M count=4 conv=notrunc
 chattr -j /mnt/test1/file

Best Regards,

             reply	other threads:[~2015-08-12  6:07 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-08-12  6:07 Daeho Jeong [this message]
2015-08-12 15:31 ` A question about EXT4_INODE_JOURNAL_DATA flag with delalloc Theodore Ts'o
  -- strict thread matches above, loose matches on Subject: below --
2015-08-11  3:12 Daeho Jeong
2015-08-11 20:00 ` Theodore Ts'o

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