From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Shung-Hsi Yu <shung-hsi.yu@suse.com>
Cc: stable@vger.kernel.org, patches@lists.linux.dev,
linux-kernel@vger.kernel.org, torvalds@linux-foundation.org,
akpm@linux-foundation.org, linux@roeck-us.net, shuah@kernel.org,
patches@kernelci.org, lkft-triage@lists.linaro.org,
pavel@denx.de, jonathanh@nvidia.com, f.fainelli@gmail.com,
sudipm.mukherjee@gmail.com, srw@sladewatkins.net, rwarsow@gmx.de,
conor@kernel.org, hargar@microsoft.com, broonie@kernel.org,
kees@kernel.org
Subject: Re: [PATCH 6.14 000/197] 6.14.7-rc2 review
Date: Thu, 15 May 2025 14:25:50 +0200 [thread overview]
Message-ID: <2025051529-mulled-cubicle-b1cd@gregkh> (raw)
In-Reply-To: <vrvefaimjqkseuoyuhgg6omt2ypgp5v6xwwuxihj2t5jidizyr@ir5w67k4kl36>
On Thu, May 15, 2025 at 08:15:32PM +0800, Shung-Hsi Yu wrote:
> On Wed, May 14, 2025 at 03:04:16PM +0200, Greg Kroah-Hartman wrote:
> > This is the start of the stable review cycle for the 6.14.7 release.
> > There are 197 patches in this series, all will be posted as a response
> > to this one. If anyone has any issues with these being applied, please
> > let me know.
> ...
> > Kees Cook <kees@kernel.org>
> > mm: vmalloc: support more granular vrealloc() sizing
>
> The above is causing a slow down in BPF verifier[1]. Assuming BPF
> selftests are somewhat representing of real world BPF programs, the slow
> down would be around 2x on average, but for an unrealistic worth-case it
> could go as high as 40x[2].
>
> 1: https://lore.kernel.org/stable/20250515041659.smhllyarxdwp7cav@desk/
> 2: https://lore.kernel.org/stable/g4fpslyse2s6hnprgkbp23ykxn67q5wabbkpivuc3rro5bivo4@sj2o3nd5vwwm/
Is this slowdown also in 6.15-rc right now? If so, let's work on fixing
it there first.
thanks,
greg k-h
next prev parent reply other threads:[~2025-05-15 12:27 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-14 13:04 [PATCH 6.14 000/197] 6.14.7-rc2 review Greg Kroah-Hartman
2025-05-14 15:35 ` Jon Hunter
2025-05-15 7:28 ` Mark Brown
2025-05-15 8:26 ` Florian Fainelli
2025-05-15 9:36 ` Takeshi Ogasawara
2025-05-15 10:59 ` Naresh Kamboju
2025-05-15 12:15 ` Shung-Hsi Yu
2025-05-15 12:25 ` Greg Kroah-Hartman [this message]
2025-05-15 12:32 ` Shung-Hsi Yu
2025-05-15 21:37 ` Peter Schneider
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