Date: Mon, 10 May 2004 09:53:23 -0700 (PDT) From: HITOSHI Osada <qfh02545@nifty.com> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/66479: mpt has a bug when creating chain elements. Message-ID: <200405101653.i4AGrNeX049857@www.freebsd.org> Resent-Message-ID: <200405101700.i4AH0eZq088029@freefall.freebsd.org>
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>Number: 66479 >Category: kern >Synopsis: mpt has a bug when creating chain elements. >Confidential: no >Severity: critical >Priority: high >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon May 10 10:00:39 PDT 2004 >Closed-Date: >Last-Modified: >Originator: HITOSHI Osada >Release: 5.2 >Organization: >Environment: >Description: There is a bug in mpt_run_xfer(). I found this bug in NetBSD and the same bug exists in mpt_freebsd.c. >How-To-Repeat: Access SCSI disks via mpt. >Fix: --- mpt_freebsd.c~ 2004-05-11 01:42:29.000000000 +0900 +++ mpt_freebsd.c 2004-05-11 01:50:06.000000000 +0900 @@ -268,11 +268,13 @@ ntodo = MPT_NSGL(mpt) - 1; ce->NextChainOffset = (MPT_RQSL(mpt) - sizeof (SGE_SIMPLE32)) >> 2; + ce->Length = MPT_NSGL(mpt) + * sizeof(SGE_SIMPLE32); } else { ntodo = nleft; ce->NextChainOffset = 0; + ce->Length = ntodo * sizeof (SGE_SIMPLE32); } - ce->Length = ntodo * sizeof (SGE_SIMPLE32); ce->Address = req->req_pbuf + ((char *)se - (char *)mpt_req); ce->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT; >Release-Note: >Audit-Trail: >Unformatted:
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