linux-kernel - Re: [PATCH 6.16 000/627] 6.16.1-rc1 review

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Message-ID: <2025081311-purifier-reviver-aeb2@gregkh>
Date: Wed, 13 Aug 2025 16:53:37 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: Naresh Kamboju <naresh.kamboju@...aro.org>
Cc: stable@...r.kernel.org, patches@...ts.linux.dev,
	linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, linux@...ck-us.net, shuah@...nel.org,
	patches@...nelci.org, lkft-triage@...ts.linaro.org, pavel@...x.de,
	jonathanh@...dia.com, f.fainelli@...il.com,
	sudipm.mukherjee@...il.com, srw@...dewatkins.net, rwarsow@....de,
	conor@...nel.org, hargar@...rosoft.com, broonie@...nel.org,
	achill@...ill.org, qemu-devel@...gnu.org,
	Alex Bennée <alex.bennee@...aro.org>,
	Arnd Bergmann <arnd@...db.de>,
	Dan Carpenter <dan.carpenter@...aro.org>,
	Anders Roxell <anders.roxell@...aro.org>,
	Ben Copeland <benjamin.copeland@...aro.org>,
	LTP List <ltp@...ts.linux.it>, chrubis <chrubis@...e.cz>,
	Petr Vorel <pvorel@...e.cz>, Ian Rogers <irogers@...gle.com>,
	linux-perf-users@...r.kernel.org,
	Zhang Yi <yi.zhang@...weicloud.com>,
	Joseph Qi <jiangqi903@...il.com>, Jan Kara <jack@...e.cz>,
	linux-fsdevel@...r.kernel.org,
	linux-ext4 <linux-ext4@...r.kernel.org>,
	Zhang Yi <yi.zhang@...wei.com>, Theodore Ts'o <tytso@....edu>,
	Baokun Li <libaokun1@...wei.com>
Subject: Re: [PATCH 6.16 000/627] 6.16.1-rc1 review

On Wed, Aug 13, 2025 at 08:01:51PM +0530, Naresh Kamboju wrote:
> Hi Greg,
> 
> > > 2)
> > >
> > > The following list of LTP syscalls failure noticed on qemu-arm64 with
> > > stable-rc 6.16.1-rc1 with CONFIG_ARM64_64K_PAGES=y build configuration.
> > >
> > > Most failures report ENOSPC (28) or mkswap errors, which may be related
> > > to disk space handling in the 64K page configuration on qemu-arm64.
> > >
> > > The issue is reproducible on multiple runs.
> > >
> > > * qemu-arm64, ltp-syscalls - 64K page size test failures list,
> > >
> > >   - fallocate04
> > >   - fallocate05
> > >   - fdatasync03
> > >   - fsync01
> > >   - fsync04
> > >   - ioctl_fiemap01
> > >   - swapoff01
> > >   - swapoff02
> > >   - swapon01
> > >   - swapon02
> > >   - swapon03
> > >   - sync01
> > >   - sync_file_range02
> > >   - syncfs01
> > >
> > > Reproducibility:
> > >  - 64K config above listed test fails
> > >  - 4K config above listed test pass.
> > >
> > > Regression Analysis:
> > > - New regression? yes
> >
> > Regression from 6.16?  Or just from 6.15.y?
> 
> Based on available data, the issue is not present in v6.16 or v6.15.
> 
> Anders, bisected this regression and found,
> 
>   ext4: correct the reserved credits for extent conversion
>     [ Upstream commit 95ad8ee45cdbc321c135a2db895d48b374ef0f87 ]
> 
> Report lore link,
> 
> https://lore.kernel.org/stable/CA+G9fYtBnCSa2zkaCn-oZKYz8jz5FZj0HS7DjSfMeamq3AXqNg@mail.gmail.com/

Great, and that's also affecting 6.17-rc1 so we are "bug compatible"?
:)

thanks

greg k-h