From owner-freebsd-bugs@freebsd.org Fri May 17 06:14:13 2019 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 C499715B0A17 for ; Fri, 17 May 2019 06:14:13 +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 5BF0E8C7D2 for ; Fri, 17 May 2019 06:14:13 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id 1941715B0A16; Fri, 17 May 2019 06:14:13 +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 06D2C15B0A15 for ; Fri, 17 May 2019 06:14:13 +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 TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 970768C7C5 for ; Fri, 17 May 2019 06:14:12 +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 BBD7518367 for ; Fri, 17 May 2019 06:14:11 +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 x4H6EBwx055044 for ; Fri, 17 May 2019 06:14:11 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id x4H6EBWo055038 for bugs@FreeBSD.org; Fri, 17 May 2019 06:14:11 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 237937] Removing path with mpr and geom_multipath causes kernel panic Date: Fri, 17 May 2019 06:14:11 +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: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: pascal.guitierrez@gmail.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 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: 2.1.29 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 May 2019 06:14:14 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D237937 Bug ID: 237937 Summary: Removing path with mpr and geom_multipath causes kernel panic Product: Base System Version: CURRENT Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: pascal.guitierrez@gmail.com This issue occurs on both 12.0-RELEASE-p5 and 13-CURRENT r347415 (snap from 10th of May 2019). Reproducing is very easy: 1. Setup a bunch of multipath SAS disks using gmultipath (I am using 100 SAS disks with two 9300-8e SAS HBA's, but issue occurs even on 1x HBA) 2. Create a ZFS pool based on these (zpool create bench mirror multipath/.. ...) 3. Run some I/O on the pool: iozone -a 4. Physically pull one of the paths, wait, plug back in. Confirm that the p= ath is OPTIMAL via gmultipath. Then repeat with the other port. Eventually I/O will be frozen to the OS (there's a bunch of scsi ioc termin= ated and CAM status: CCB request completed with an error) and eventually the sys= tem will panic. This is 100% reproducible on my setup, can also provide SSH/IPMI access if needed. --=20 You are receiving this mail because: You are the assignee for the bug.=