From nobody Mon Feb 12 19:55:03 2024 X-Original-To: current@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4TYZtf0bjJz5BT1R for ; Mon, 12 Feb 2024 19:55:06 +0000 (UTC) (envelope-from cy.schubert@cschubert.com) Received: from omta001.cacentral1.a.cloudfilter.net (omta001.cacentral1.a.cloudfilter.net [3.97.99.32]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "Client", Issuer "CA" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4TYZtd702yz42Hl; Mon, 12 Feb 2024 19:55:05 +0000 (UTC) (envelope-from cy.schubert@cschubert.com) Authentication-Results: mx1.freebsd.org; none Received: from shw-obgw-4004a.ext.cloudfilter.net ([10.228.9.227]) by cmsmtp with ESMTPS id ZWf1rkaKexDxGZcOPrnbIf; Mon, 12 Feb 2024 19:55:05 +0000 Received: from spqr.komquats.com ([70.66.152.170]) by cmsmtp with ESMTPSA id ZcOOrgM8tWhyfZcOPrZAPf; Mon, 12 Feb 2024 19:55:05 +0000 X-Authority-Analysis: v=2.4 cv=MenPuI/f c=1 sm=1 tr=0 ts=65ca7799 a=y8EK/9tc/U6QY+pUhnbtgQ==:117 a=y8EK/9tc/U6QY+pUhnbtgQ==:17 a=kj9zAlcOel0A:10 a=k7vzHIieQBIA:10 a=VxmjJ2MpAAAA:8 a=6I5d2MoRAAAA:8 a=pGLkceISAAAA:8 a=YxBL1-UpAAAA:8 a=EkcXrb_YAAAA:8 a=P8UMhXQfQG_xj_VZIjcA:9 a=CjuIK1q_8ugA:10 a=lYGsSHVhVPcA:10 a=7gXAzLPJhVmCkEl4_tsf:22 a=IjZwj45LgO3ly-622nXo:22 a=Ia-lj3WSrqcvXOmTRaiG:22 a=LK5xJRSDVpKd5WXXoEvA:22 Received: from slippy.cwsent.com (slippy [10.1.1.91]) by spqr.komquats.com (Postfix) with ESMTP id 0D9AE112; Mon, 12 Feb 2024 11:55:04 -0800 (PST) Received: by slippy.cwsent.com (Postfix, from userid 1000) id EDEA298; Mon, 12 Feb 2024 11:55:03 -0800 (PST) X-Mailer: exmh version 2.9.0 11/07/2018 with nmh-1.8+dev Reply-to: Cy Schubert From: Cy Schubert X-os: FreeBSD X-Sender: cy@cwsent.com X-URL: http://www.cschubert.com/ To: Cy Schubert cc: tuexen@freebsd.org, Alexander Leidinger , current@freebsd.org Subject: Re: kernel crash in tcp_subr.c:2386 In-reply-to: <20240212193044.E089D185@slippy.cwsent.com> References: <1707730255-92643-mlmmj-52dbb05a@FreeBSD.org> <625E0EA4-9413-45AD-B05C-500833A1D527@freebsd.org> <20240212193044.E089D185@slippy.cwsent.com> Comments: In-reply-to Cy Schubert message dated "Mon, 12 Feb 2024 11:30:44 -0800." List-Id: Discussions about the use of FreeBSD-current List-Archive: https://lists.freebsd.org/archives/freebsd-current List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-current@freebsd.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Mon, 12 Feb 2024 11:55:03 -0800 Message-Id: <20240212195503.EDEA298@slippy.cwsent.com> X-CMAE-Envelope: MS4xfHEWS27e1xNlqg5jM68ka57SdNij5Cq72XIxIrngP0oFxZifgyl8nSFbVF0LfvJZZx01oLEEo0my9uVmaTCSrOVzpbPfroAsAlrI2NKhpfOiRU11/7Y1 BvqlNP+PHZ25HbYQaANAq963We94GsTq7cNrKHzQppSUsm3Xm1QTtsb2itgo2N4P0vpyq1ZKbli9jgYovjoCI3eKAvsAmIyvuVEzBMskj43cbdbeslbwcCk6 VPN2+xncCYwQORmXO42J9Gm+LjDr5dKUcJERFZj/yRw= X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:16509, ipnet:3.96.0.0/15, country:US] X-Rspamd-Queue-Id: 4TYZtd702yz42Hl X-Spamd-Bar: ---- X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated In message <20240212193044.E089D185@slippy.cwsent.com>, Cy Schubert writes: > In message <625E0EA4-9413-45AD-B05C-500833A1D527@freebsd.org>, > tuexen@freebsd.o > rg writes: > > > On Feb 12, 2024, at 10:36, Alexander Leidinger = > > wrote: > > >=20 > > > Hi, > > >=20 > > > I got a coredump with sources from 2024-02-10-144617 (GMT+0100): > > Hi Alexander, > > > > we are aware of this problem, but haven't found a way to reproduce it. > > Do you know how to reproduce this? > > I've reproduced this by rebooting any one of my machines in my basement. > The other machines will panic as below. > > I've reverted the three tcp timer commits, expecting one of them to be the > cause. Another data point: I build on a build machine and NFS mount /usr/obj on my other machines. Another symptom of this problem is that the NFS share will appear corrupted. And df -htnfs will sometimes not display the mounted NFS share. If not a kernel page fault, random kernel memory can be overwritten resulting in bizarre behaviour prior. -- Cheers, Cy Schubert FreeBSD UNIX: Web: https://FreeBSD.org NTP: Web: https://nwtime.org e^(i*pi)+1=0