From nobody Fri May 1 10:41:30 2026 X-Original-To: freebsd-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 4g6SKm4RFlz6cNKM for ; Fri, 01 May 2026 10:42:36 +0000 (UTC) (envelope-from Alexander@Leidinger.net) Received: from mailgate.Leidinger.net (bastille.leidinger.net [89.238.82.207]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature ECDSA (prime256v1) client-digest SHA256) (Client CN "mailgate.leidinger.net", Issuer "E7" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4g6SKm07bZz453P; Fri, 01 May 2026 10:42:35 +0000 (UTC) (envelope-from Alexander@Leidinger.net) Authentication-Results: mx1.freebsd.org; none 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 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=leidinger.net; s=outgoing-alex; t=1777632142; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=cZpnpZkOpVY8kkpgS4tYqlQxKoC+71PLls/ftlWfldM=; b=ZgJe0SUDNHh9TbdJsDBkH46H7q1+tpnSeZ/ci2JvYeihwmJfDoUzL+T7SLACxKs3NiUDXr LyJW4WeQb6hY7yjLISKZM6XAoinKu1RUUiHWucXQrB+E9YEk0pzQntCCABMaSLoTYIjqSg I9+5X7aQC1H4AbYShnpFvFdNHUuINZJeFVC2xOl/f//4Y0vvCnLzci6j96h70u4dUm28Fp 4MQsCMmlId4oRY8/ID78VMB4fVdb0CSdrm4Vftp3eHkJFrjwhOjZCPhuqBeXXuW+srQYz2 QCtfL+B42QwM7V/DBqDG+JzDzhuBdlcW3RvjWw93C40DtUreM9VqAv5L/TuQaA== Date: Fri, 01 May 2026 12:41:30 +0200 From: Alexander Leidinger To: =?UTF-8?Q?Jean-S=C3=A9bastien_P=C3=A9dron?= Cc: freebsd-current@freebsd.org Subject: Re: openzfs panic: VERIFY3U(offset, <, dn->dn_datablksz) failed In-Reply-To: <07ab9cba-8089-4fd3-9bc7-31bbdbf0bffe@FreeBSD.org> References: <34C033D4-AC92-4E11-A130-AFFBAB6CCB45@FreeBSD.org> <07ab9cba-8089-4fd3-9bc7-31bbdbf0bffe@FreeBSD.org> Message-ID: <5a9b7c0305461f51f9496e2e7ae62636@Leidinger.net> Organization: No organization, this is a private message. Content-Type: multipart/signed; protocol="application/pgp-signature"; boundary="=_72bf008e7c39dfd62ba630c26ee477ed"; micalg=pgp-sha256 X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:34240, ipnet:89.238.64.0/18, country:DE] X-Rspamd-Queue-Id: 4g6SKm07bZz453P X-Spamd-Bar: ---- X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --=_72bf008e7c39dfd62ba630c26ee477ed Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8; format=flowed Am 2026-04-30 20:12, schrieb Jean-Sébastien Pédron: > On 25/04/2026 10:24, Kristof Provost wrote: >> On 24 Apr 2026, at 14:18, Alexander Leidinger wrote: >> recent current (last commit 2026-04-23-222413). >> >> short: >> #3 0xffffffff805502f7 in vpanic ( >> fmt=0xffffffff82556d5d "VERIFY3U(offset, <, dn->dn_datablksz) >> failed >> (%llu < %llu)\n", ap=ap@entry=0xfffffe0228f57c70) >> at /space/system/usr_src/sys/kern/kern_shutdown.c:974 >> buf = "VERIFY3U(offset, <, dn->dn_datablksz) failed >> (9223372036854775807 < 24576)\n", '\000' >> __pc = 0x0 >> __pc = 0x0 >> __pc = 0x0 >> other_cpus = {__bits = {16777213, 0 }} >> td = 0xfffff80741b6e780 >> bootopt = >> newpanic = >> >> I’m seeing the same panic (somewhat regularly, without obvious >> trigger), so I’m fairly confident it’s not some obscure corruption in >> your pool. > I get it while working on RabbitMQ as well, 100% reproducible. I shared > what I think I understand of the problem on the pull request that added > POSIX_FADV_DONTNEED support: > https://github.com/openzfs/zfs/pull/18399 > > However, the patch I drafted, even though it does not cause the panic > anymore, is incorrect as I misunderstood that code. There is now https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=294903 Bye, Alexander. -- http://www.Leidinger.net Alexander@Leidinger.net: PGP 0x8F31830F9F2772BF http://www.FreeBSD.org netchild@FreeBSD.org : PGP 0x8F31830F9F2772BF --=_72bf008e7c39dfd62ba630c26ee477ed Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc; size=833 Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEER9UlYXp1PSd08nWXEg2wmwP42IYFAmn0g2kACgkQEg2wmwP4 2IYqsw//TWkWB7d4lIZ4A8nf9BWNA28t4eWk74+V/iFAJ39itFWnwwBPcPbHkOO4 SKOZwb26BP2/t/GW/nwqQpVPJK2IsBrt7gAJEnzN/TqFVJSxQkLuqu65y7YvFyvy asdN0ns1x9IfR4EguYGvGm4xPSlp/JY8S32RFCviNfUMg3Cgl8iN//mDu2k3lrgH mJl4IMbil/4wFArYLSeqi4IMNX+xS1mBaHQgsfyuH6AtWnmp+CTfMcDiyZOxLOQ1 0nTj/8r9e8HHj0ZcCmjgbkI9rLf9XFqfF2yZCeeODGVN1cWHI8xE6/tEaia/Efrm 0nDmJOAo92J/z0OxqmI3QkQMcCWUShF7nCKRdFDV7Ymq72B/P/eoV0No5bEO/j4Q d6mJfvj1myYD/8sbqDdQ0CihYToqN3gOrR8f7MKkomjtqbG9N4CPjJH5RkGIeOPF M7wJSEp8+UEzK5CvVRfCr2APKmHsqSoIWmNg75GH/vjU6Wm7Vez8egVQA5o1Mbr7 f7NFtbG5cyx3jmLPGpnFzFi8jYwCwKKn+LtASPNdR3cKEyc2hVzWjYKm7TNDmSYa ExA/H6QIheYeUDP76GefaJ13sV9TwUJKVCiZk3RQBZCE7Bj8f0AT+SiOFItI+e81 UeCMl15gSOpQVeesWrKqNMt8MiDS2EKt+0rHX1kjUcc2s+iqCFg= =AY89 -----END PGP SIGNATURE----- --=_72bf008e7c39dfd62ba630c26ee477ed--