Date: Mon, 12 Feb 2024 11:55:03 -0800 From: Cy Schubert <Cy.Schubert@cschubert.com> To: Cy Schubert <Cy.Schubert@cschubert.com> Cc: tuexen@freebsd.org, Alexander Leidinger <alexleidingerde@gmail.com>, current@freebsd.org Subject: Re: kernel crash in tcp_subr.c:2386 Message-ID: <20240212195503.EDEA298@slippy.cwsent.com> In-Reply-To: <20240212193044.E089D185@slippy.cwsent.com> References: <1707730255-92643-mlmmj-52dbb05a@FreeBSD.org> <CAJg7qzH_c8JCKQvLPki6Cv7GRzaQs9vA-omSWBxnFTPy_9Rczw@mail.gmail.com> <625E0EA4-9413-45AD-B05C-500833A1D527@freebsd.org> <20240212193044.E089D185@slippy.cwsent.com>
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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 = > > <alexleidingerde@gmail.com> 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 <Cy.Schubert@cschubert.com> FreeBSD UNIX: <cy@FreeBSD.org> Web: https://FreeBSD.org NTP: <cy@nwtime.org> Web: https://nwtime.org e^(i*pi)+1=0
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