linux-ext4 - Re: [5.10.y] Regression in EXT3/4 with v5.10.227, LTP preadv03 is failing

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Message-ID: <2024102130-thieving-parchment-7885@gregkh>
Date: Mon, 21 Oct 2024 18:49:43 +0200
From: Greg KH <gregkh@...uxfoundation.org>
To: Mahmoud Adam <mngyadam@...zon.com>
Cc: jack@...e.cz, hch@....de, sashal@...nel.org, tytso@....edu,
	linux-ext4@...r.kernel.org, regressions@...ts.linux.dev
Subject: Re: [5.10.y] Regression in EXT3/4 with v5.10.227, LTP preadv03 is
 failing

On Mon, Oct 21, 2024 at 05:43:54PM +0200, Mahmoud Adam wrote:
> 
> Hello,
> 
>   In the latest 5.10.227 we see LTP preadv03 failing on EXT3/4, when
> bisected it was found that the commit dde4c1e1663b6 ("ext4: properly
> sync file size update after O_SYNC direct IO") is causing it
> 
> This seems similar to what occurred before[1] and if I understand
> correctly it was because of missing dependency backport 936e114a245b6
> ("iomap: update ki_pos a little later in iomap_dio_complete") which was
> then backported to 5.15 & 6.1 but not to 5.10.
> 
> *This is not failing on 5.15 nor 6.1, and it does fail consistently in x86-64 & ARM
> 
> [1]: https://lore.kernel.org/all/20231205122122.dfhhoaswsfscuhc3@quack3/
> 


What do you suggest be done?

thanks,

greg k-h