From owner-freebsd-bugs@freebsd.org Sat Mar 17 16:04:23 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 965BFF5492C for ; Sat, 17 Mar 2018 16:04:22 +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 19F29823AF for ; Sat, 17 Mar 2018 16:04:22 +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 58BFA5592 for ; Sat, 17 Mar 2018 16:04:21 +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 w2HG4L4E077832 for ; Sat, 17 Mar 2018 16:04:21 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from bugzilla@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id w2HG4L6k077831 for freebsd-bugs@FreeBSD.org; Sat, 17 Mar 2018 16:04:21 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: bugzilla set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 226510] panic: Re-refing for reason 5, cnt = 1 Date: Sat, 17 Mar 2018 16:04:21 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: patch X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: commit-hook@freebsd.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: Message-ID: In-Reply-To: References: 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: Sat, 17 Mar 2018 16:04:23 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D226510 --- Comment #12 from commit-hook@freebsd.org --- A commit references this bug: Author: imp Date: Sat Mar 17 16:04:06 UTC 2018 New revision: 331097 URL: https://svnweb.freebsd.org/changeset/base/331097 Log: Only take out the periph lock when we're modifying the flags of the softc for an async unit attention. CAM locks, sometimes, the periph lock and other times does not. We were taking the lock always and running into lock recursion issues on a non-recursive lock. Now we take it selectively. It's not clear why xpt takes the lock selectively before calling us, though, and that's still under investigation. Reported by: avg PR: 226510 (same panic, differnt circumstances) Sponsored by: Netflix Changes: head/sys/cam/scsi/scsi_da.c --=20 You are receiving this mail because: You are the assignee for the bug.=