linux-kernel - Re: [PATCH 6.0 00/20] 6.0.4-rc1 review

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Date:   Wed, 26 Oct 2022 08:36:55 +0200
From:   Ernst Herzberg <earny@...4u.de>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org
Cc:     stable@...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
Subject: Re: [PATCH 6.0 00/20] 6.0.4-rc1 review

Missed a patch?

Problematic patch in v6.0.3 :

> commit 3ea7c50339859394dd667184b5b16eee1ebb53bc
> Author: Josef Bacik <josef@...icpanda.com>
> Date:   Mon Aug 8 16:10:26 2022 -0400
> 
>     btrfs: call __btrfs_remove_free_space_cache_locked on cache load failure
>     [ Upstream commit 8a1ae2781dee9fc21ca82db682d37bea4bd074ad ]
>     Now that lockdep is staying enabled through our entire CI runs I started
>     seeing the following stack in generic/475


See:

https://lore.kernel.org/stable/Y1aeWdHd4%2FluzhAu@localhost.localdomain/

> 
> Well I definitely fucked this patch up, because I should have used the _locked
> variant, but this was part of a series where I did the correct thing in the next
> patch
> 
>     btrfs: remove use btrfs_remove_free_space_cache instead of variant
> 
> so this problem doesn't exist in linus.  So either we need to pull that back
> into stable as well, or drop this patch from stable.  I'm good either way, this
> was just to fix a lockdep splat so it's not really stable material, but I'll
> leave that decision up to y'all.  Thanks,
> 
> Josef
> 
>