linux-kernel - Re: "beyond 2038" warnings from loopback mount is noisy

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Message-Id: <82F89AEA-994B-44B5-93E7-CD339E4F78F6@dilger.ca>
Date:   Tue, 3 Sep 2019 13:39:16 -0600
From:   Andreas Dilger <adilger@...ger.ca>
To:     Qian Cai <cai@....pw>
Cc:     Deepa Dinamani <deepa.kernel@...il.com>,
        Jeff Layton <jlayton@...nel.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Linux FS-devel Mailing List <linux-fsdevel@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Theodore Ts'o <tytso@....edu>,
        Ext4 Developers List <linux-ext4@...r.kernel.org>,
        Arnd Bergmann <arnd@...db.de>
Subject: Re: "beyond 2038" warnings from loopback mount is noisy

On Sep 3, 2019, at 12:15 PM, Qian Cai <cai@....pw> wrote:
> 
> On Tue, 2019-09-03 at 09:36 -0700, Deepa Dinamani wrote:
>> We might also want to consider updating the file system the LTP is
>> being run on here.
> 
> It simply format (mkfs.ext4) a loop back device on ext4 with the kernel.
> 
> CONFIG_EXT4_FS=m
> # CONFIG_EXT4_USE_FOR_EXT2 is not set
> # CONFIG_EXT4_FS_POSIX_ACL is not set
> # CONFIG_EXT4_FS_SECURITY is not set
> # CONFIG_EXT4_DEBUG is not set
> 
> using e2fsprogs-1.44.6. Do you mean people now need to update the kernel to
> enable additional config to avoid the spam of warnings now?

Strange.  The defaults for mkfs.ext4 _should_ default to use options that
allow enough space for the extra timestamps.

Can you please provide "dumpe2fs -h" output for your filesystem, and the
formatting options that you used when creating this filesystem.

Cheers, Andreas






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