From owner-svn-src-stable@freebsd.org Tue Sep 3 14:52:41 2019 Return-Path: Delivered-To: svn-src-stable@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 02BAAD129B; Tue, 3 Sep 2019 14:52:41 +0000 (UTC) (envelope-from mav@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::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.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 46N90m402Tz4KZ0; Tue, 3 Sep 2019 14:52:40 +0000 (UTC) (envelope-from mav@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 623424840; Tue, 3 Sep 2019 14:52:40 +0000 (UTC) (envelope-from mav@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x83Eqe5R084606; Tue, 3 Sep 2019 14:52:40 GMT (envelope-from mav@FreeBSD.org) Received: (from mav@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x83EqelP084605; Tue, 3 Sep 2019 14:52:40 GMT (envelope-from mav@FreeBSD.org) Message-Id: <201909031452.x83EqelP084605@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: mav set sender to mav@FreeBSD.org using -f From: Alexander Motin Date: Tue, 3 Sep 2019 14:52:40 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r351745 - stable/12/sys/cam/scsi X-SVN-Group: stable-12 X-SVN-Commit-Author: mav X-SVN-Commit-Paths: stable/12/sys/cam/scsi X-SVN-Commit-Revision: 351745 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for all the -stable branches of the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 03 Sep 2019 14:52:41 -0000 Author: mav Date: Tue Sep 3 14:52:39 2019 New Revision: 351745 URL: https://svnweb.freebsd.org/changeset/base/351745 Log: MFC r351550: Always check cam_periph_error() status for ERESTART. Even if we do not expect retries, we better be sure, since otherwise it may result in use after free kernel panic. I've noticed that it retries SCSI_STATUS_BUSY even with SF_NO_RECOVERY | SF_NO_RETRY. Modified: stable/12/sys/cam/scsi/scsi_xpt.c Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/cam/scsi/scsi_xpt.c ============================================================================== --- stable/12/sys/cam/scsi/scsi_xpt.c Tue Sep 3 14:39:36 2019 (r351744) +++ stable/12/sys/cam/scsi/scsi_xpt.c Tue Sep 3 14:52:39 2019 (r351745) @@ -1684,8 +1684,9 @@ probe_device_check: case PROBE_TUR_FOR_NEGOTIATION: case PROBE_DV_EXIT: if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { - cam_periph_error(done_ccb, 0, - SF_NO_PRINT | SF_NO_RECOVERY | SF_NO_RETRY); + if (cam_periph_error(done_ccb, 0, SF_NO_PRINT | + SF_NO_RECOVERY | SF_NO_RETRY) == ERESTART) + goto outr; } if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { /* Don't wedge the queue */ @@ -1735,8 +1736,9 @@ probe_device_check: struct ccb_scsiio *csio; if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { - cam_periph_error(done_ccb, 0, - SF_NO_PRINT | SF_NO_RECOVERY | SF_NO_RETRY); + if (cam_periph_error(done_ccb, 0, SF_NO_PRINT | + SF_NO_RECOVERY | SF_NO_RETRY) == ERESTART) + goto outr; } if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { /* Don't wedge the queue */