Date: Wed, 02 Nov 2022 14:11:39 +0000 From: Jonathan Vasquez <jon@xyinn.org> To: Thomas Zander <riggs@freebsd.org> Cc: freebsd-stable@freebsd.org, FreeBSD Errata Notices <errata-notices@freebsd.org> Subject: Re: FreeBSD Errata Notice FreeBSD-EN-22:21.zfs Message-ID: <jyIEAIIxtyi3Y2It_rLaTzzua4RVUDPg_EtkHyZodGe3-gflexYln2M6vVJvPrME0Q30saN0CGjpE9TVOYesKlk3KN8XqkMEpFlyvGvyYZE=@xyinn.org> In-Reply-To: <CAFU734xVnqZbDYMq8KJaa_VDbVp%2BdhYeZoEwB8pafvfHu9A35w@mail.gmail.com> References: <20221101222046.AB5483910@freefall.freebsd.org> <CAFU734xVnqZbDYMq8KJaa_VDbVp%2BdhYeZoEwB8pafvfHu9A35w@mail.gmail.com>
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I spoke to Richard today, and asked him your question on your behalf. He sa= id the following: "Most of the time, the issue does not go to disk. When it does they are not= well understood yet. He would probably know if it did since things could g= o horribly wrong, but if he wants to try to be sure, he could try using zdb= -bcc ... to try to verify certain things about his pool, but again, the re= sults of undefined behavior in the btree code is not well understood. It is= a very complex thing to analyze and I have not had time to do that. There = are a couple of bug reports in GitHub that I suspect are related, but canno= t prove currently." Jonathan Vasquez PGP: 34DA 858C 1447 509E C77A D49F FB85 90B7 C4CA 5279 Sent with ProtonMail Secure Email ------- Original Message ------- On Tuesday, November 1st, 2022 at 19:45, Thomas Zander <riggs@freebsd.org> = wrote: > On Tue, 1 Nov 2022 at 23:21, FreeBSD Errata Notices > errata-notices@freebsd.org wrote: >=20 > > Systems with debug kernels may sometimes detect this issue after a kern= el > > memory corruption has happened. When they do, they will trigger a kerne= l > > panic to protect the system from further damage. The following is print= ed > > to dmesg at the time of the panic: >=20 >=20 > On production systems, is there any way to check for corruptions? Will > a "zpool scrub" find problems?
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