lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Mon, 12 Dec 2022 11:14:16 +0100
From:   Peter Zijlstra <>
To:     Tejun Heo <>
Subject: Re: [PATCHSET RFC] sched: Implement BPF extensible scheduler class

On Tue, Nov 29, 2022 at 10:22:42PM -1000, Tejun Heo wrote:

> Rolling out kernel upgrades is a slow and iterative process. At a large scale
> it can take months to roll a new kernel out to a fleet of servers. While this
> latency is expected and inevitable for normal kernel upgrades, it can become
> highly problematic when kernel changes are required to fix bugs. Livepatch [9]
> is available to quickly roll out critical security fixes to large fleets, but
> the scope of changes that can be applied with livepatching is fairly limited,
> and would likely not be usable for patching scheduling policies. With
> sched_ext, new scheduling policies can be rapidly rolled out to production
> environments.

I don't think we can or should use this argument to push BPF into ever
more places.

Powered by blists - more mailing lists