Date: Mon, 30 May 2022 16:18:19 -0700 From: Cy Schubert <Cy.Schubert@cschubert.com> To: David Wolfskill <david@catwhisker.org> Cc: Cy Schubert <Cy.Schubert@cschubert.com>, Warner Losh <imp@bsdimp.com>, Kirk McKusick <mckusick@freebsd.org>, src-committers <src-committers@freebsd.org>, "<dev-commits-src-all@freebsd.org>" <dev-commits-src-all@freebsd.org>, dev-commits-src-main@freebsd.org, Toomas Soome <tsoome@me.com> Subject: Re: git: 076002f24d35 - main - Do comprehensive UFS/FFS superblock integrity checks when reading a superblock. Message-ID: <20220530231819.26E34CE@slippy.cwsent.com> In-Reply-To: <YpVPEtkzsKBpWtaC@albert.catwhisker.org> References: <202205271922.24RJMOJ2039923@gitrepo.freebsd.org> <20220530215552.EE5432C@slippy.cwsent.com> <CANCZdfpovXadsxcS_YC2-NpJJX8S62YTfNTSfE9VHqoE6KsJPA@mail.gmail.com> <20220530222402.E22C7114@slippy.cwsent.com> <CANCZdfoqpDO9-APZytimd9TpPGsnaj0%2BwJBfdxv%2Bo2NnOX5ZUQ@mail.gmail.com> <YpVIJ0ZuPCrGE5zy@albert.catwhisker.org> <20220530225330.1EB67197@slippy.cwsent.com> <YpVPEtkzsKBpWtaC@albert.catwhisker.org>
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In message <YpVPEtkzsKBpWtaC@albert.catwhisker.org>, David Wolfskill writes: > > > --fbDsVP+DlYRwzumm > Content-Type: text/plain; charset=us-ascii > Content-Disposition: inline > Content-Transfer-Encoding: quoted-printable > > On Mon, May 30, 2022 at 03:53:29PM -0700, Cy Schubert wrote: > > ... > > I don't think this is a filesystem problem. All my / filesystems trace=20 > > their ancestry back to the same machine decades ago. All were cloned at o= > ne=20 > > point using dump | restore. All were newfs'd at some point to update from= > =20 > > 8K blocks to 16K and eventually 32K blocksize, either using my USB rescue= > =20 > > disk or a little bit of geom_mirror musical chairs. All four machines are= > =20 > > consistently set up the same as each other (as much as possible consideri= > ng=20 > > different hardware and mirrors, except for the laptop which has a single= > =20 > > disk). > > I'm not disagreeing with you. :-) > > Providing the FS image (to Toomas) was a diagnostic aid: using it, he > was able to reproduce the issue in his test-scaffolding environment, and > was having some "quality time with gdb" before he needed to do other > things (probably involving sleep). Hmmm. How interesting. Even after having newfs'd the filesystem and restoring it using a kernel and userland that did not have the commit in question I still had the problem. -- Cheers, Cy Schubert <Cy.Schubert@komquats.com> or <Cy.Schubert@cschubert.com> FreeBSD UNIX: <cy@FreeBSD.org> Web: http://www.FreeBSD.org NTP: <cy@nwtime.org> Web: https://nwtime.org e**(i*pi)+1=0
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