Date: Sat, 30 Dec 2017 18:45:34 -0700 From: Warner Losh <imp@bsdimp.com> To: "O. Hartmann" <ohartmann@walstatt.org> Cc: FreeBSD CURRENT <freebsd-current@freebsd.org> Subject: Re: r327359: cylinder checksum failed: cg0, cgp: 0x4515d2a3 != bp: 0xd9fba319 Dec 30 23:29:24 <0.2> Message-ID: <CANCZdfoMdgCrAAXadc-G6v1r0wA-qv=Ms_XKYPd7cFqSc5%2B9GQ@mail.gmail.com> In-Reply-To: <20171231004137.4f9ad496@thor.intern.walstatt.dynvpn.de>
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On Sat, Dec 30, 2017 at 4:41 PM, O. Hartmann <ohartmann@walstatt.org> wrote: > On most recent CURRENT I face the error shwon below on /tmp filesystem > (UFS2) residing > on a Samsung 850 Pro SSD: > > UFS /dev/gpt/tmp (/tmp) cylinder checksum failed: cg 0, cgp: 0x4515d2a3 != > bp: 0xd9fba319 > handle_workitem_freefile: got error 5 while accessing filesystem > UFS /dev/gpt/tmp (/tmp) cylinder checksum failed: cg 0, cgp: 0x4515d2a3 > != bp: 0xd9fba319 > handle_workitem_freefile: got error 5 while accessing filesystem > UFS /dev/gpt/tmp (/tmp) cylinder checksum failed: cg 0, cgp: 0x4515d2a3 > != bp: 0xd9fba319 > handle_workitem_freefile: got error 5 while accessing filesystem > UFS /dev/gpt/tmp (/tmp) cylinder checksum failed: cg 0, cgp: 0x4515d2a3 > != bp: 0xd9fba319 > handle_workitem_freefile: got error 5 while accessing filesystem > UFS /dev/gpt/tmp (/tmp) cylinder checksum failed: cg 0, cgp: 0x4515d2a3 > != bp: 0xd9fba319 > handle_workitem_freefile: got error 5 while accessing filesystem > > I've already formatted the /tmp filesystem, but obviously without any > success. > > Since I face such strange errors also on NanoBSD images dd'ed to SD cards, > I guess there > is something fishy ... It indicates a problem. We've seen these 'corruptions' on data in motion at work, but I hacked fsck to report checksum mismatches (it silently corrects them today) and we've not seen any mismatch when we unmount and fsck the filesystem. Warnerhome | help
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