Date: Wed, 7 Jan 2026 16:43:54 -0500 From: Mark Johnston <markj@freebsd.org> To: Renato Botelho <garga@freebsd.org> Cc: Gleb Smirnoff <glebius@freebsd.org>, freebsd-current@freebsd.org, src-committers@freebsd.org, "David E. O'Brien" <obrien@freebsd.org> Subject: Re: December 2025 stabilization week Message-ID: <aV7TmgFqbsQGc0OM@nuc> In-Reply-To: <a224a8fd-1ed1-40bf-8cab-a37d96845ebc@FreeBSD.org> References: <aUkIoWMkgaBtQkZD@cell.glebi.us> <aUrYyGG0Gil_oJ6a@cell.glebi.us> <aV1T0NA63Qc_MasK@cell.glebi.us> <a224a8fd-1ed1-40bf-8cab-a37d96845ebc@FreeBSD.org>
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On Wed, Jan 07, 2026 at 10:43:55AM -0300, Renato Botelho wrote: > On 06/01/26 15:26, Gleb Smirnoff wrote: > > On Tue, Dec 23, 2025 at 10:00:40AM -0800, Gleb Smirnoff wrote: > > T> On Mon, Dec 22, 2025 at 01:00:17AM -0800, Gleb Smirnoff wrote: > > T> T> This is an automated email to inform you that the December 2025 stabilization week > > T> T> started with FreeBSD/main at main-n282678-88b04633c29e, which was tagged as > > T> T> main-stabweek-2025-Dec. > > T> > > T> Due to lack of human and computational resources at Netflix during the > > T> holiday period, we are unable to make our regular A/B testing in a timely > > T> manner. > > > > Late update on the December stabweek. The performance A/B testing at > > Netflix discovered two performance regressions both related to traffic distribution > > on a lagg(4). This was fixed by two commits: > > > > - ac1cd655f647 (applies to Intel NICs supported by ixl(4)) > > - 21865c970888 (applies to all) > > > > Also, a panicing regression in ipfw was reported. If you try to add a rule > > with 'log' keyword and without a rule number (autonumbered), the kernel would > > panic. There is a temporary patch attached to the email: > > > > https://lists.freebsd.org/archives/freebsd-current/2025-December/009754.txt > > > > There is no yet patch in main addressing this problem. > > > > Also, there is a report of a kernel panic in in6_selecthlim(). While the > > problem is known for a long time, but very likely with the December > > snapshot the race became easier to hit. > > > > Both panics are related to my changes, and I'm working on addressing them > > before the January stabweek. > > > > I've missed the December email but I had this regression [1] on my Thinkpad > E14 laptop. Mark attempted to fix it at that point but it didn't work as > expected and I didn't hear anything from David. > > I keep running a modified GENERIC-NODEBUG kernel without tpm device. > > [1] https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=291067 Indeed, I propose simply removing the driver from amd64 kernels for now: https://reviews.freebsd.org/D54587home | help
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