From owner-freebsd-bugs@freebsd.org Mon Aug 27 20:54:59 2018 Return-Path: Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id CCB2210960F7 for ; Mon, 27 Aug 2018 20:54:59 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id 5E26383134 for ; Mon, 27 Aug 2018 20:54:59 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id 221F810960F6; Mon, 27 Aug 2018 20:54:59 +0000 (UTC) Delivered-To: bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 10CC610960F5 for ; Mon, 27 Aug 2018 20:54:59 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 916E183133 for ; Mon, 27 Aug 2018 20:54:58 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id C472F18D0C for ; Mon, 27 Aug 2018 20:54:57 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id w7RKsv20045737 for ; Mon, 27 Aug 2018 20:54:57 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id w7RKsviC045734 for bugs@FreeBSD.org; Mon, 27 Aug 2018 20:54:57 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 230962] Kernel panic when writing extended attributes with soft updates enabled Date: Mon, 27 Aug 2018 20:54:57 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 11.2-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: 2t8mr7kx9f@protonmail.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter attachments.created Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 27 Aug 2018 20:55:00 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D230962 Bug ID: 230962 Summary: Kernel panic when writing extended attributes with soft updates enabled Product: Base System Version: 11.2-RELEASE Hardware: amd64 OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: 2t8mr7kx9f@protonmail.com Created attachment 196617 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D196617&action= =3Dedit A screenshot of the panic message. This is a continuation of the following bugreport: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D230732 I did some digging to try and get to the root cause. It appears that it has nothing to do with GELI, I can also reproduce this on a plain UFS volume. T= he culprit seem to be extended attributes. Freebsd panics reproducible with=20 "panic: softdep_deallocate_dependencies: dangling deps"=20 when using rsync with the -X option ("preserve extended attributes") to a volume with soft updates enabled. This appears to be some kind of race condition - transferring the files one-by-one works, the panic occurs only when transferring the whole directo= ry. Turning off soft updates (-n disable) or using rsync without -X prevents the panic from occurring. The exact same command worked with 11.1-RELEASE. The attached screenshot shows the panic message. Please let me know if I ca= n be of further assistance! --=20 You are receiving this mail because: You are the assignee for the bug.=