From owner-freebsd-bugs@freebsd.org Thu Dec 14 19:07:58 2017 Return-Path: Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 1B619E8BD1C for ; Thu, 14 Dec 2017 19:07:58 +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 mx1.freebsd.org (Postfix) with ESMTPS id 0963B739F7 for ; Thu, 14 Dec 2017 19:07:58 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id vBEJ7vWt045626 for ; Thu, 14 Dec 2017 19:07:57 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 224347] Boot erroneously mounts severely damaged ufs file system Date: Thu, 14 Dec 2017 19:07:58 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bin X-Bugzilla-Version: 10.3-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: freebsd@dreamchaser.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-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 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: 2.1.25 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 14 Dec 2017 19:07:58 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D224347 Bug ID: 224347 Summary: Boot erroneously mounts severely damaged ufs file system Product: Base System Version: 10.3-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: bin Assignee: freebsd-bugs@FreeBSD.org Reporter: freebsd@dreamchaser.org If a non-system ufs file system is severely damaged and does not pass the normal boot-time fsck -p sequence, it may still be mounted read-write and t= he system will boot up into multi-user mode. This happens in spite of having background_fsck=3D"NO" in rc.conf. There are no messages posted to the sys= tem log, and the console boot-time errors may have scrolled beyond reach in the buffer if one logs into vt0. After the first reboot, there are no errors related to the disk in question posted at boot-time. This happens because the return value of checkfilesys in fsck_ffs/main.c is basically ignored. When this condition occurs, it is 100% repeatable. One can crash the system and it will reboot as if everything is ok; running whatever software tweaks= the file system (in my case thunderbird) will always recrash the system. See the discussion on freebsd-questions: Subject: Thunderbird causing system crash, need guidance --=20 You are receiving this mail because: You are the assignee for the bug.=