Date: Tue, 14 Jan 2003 13:35:30 -0700 From: "Justin T. Gibbs" <gibbs@scsiguy.com> To: Nate Lawson <nate@root.org>, Joerg Wunsch <joerg_wunsch@uriah.heep.sax.de> Cc: freebsd-scsi@freebsd.org Subject: Re: quirk candidate: SEAGATE ST52160N Message-ID: <615050000.1042576530@aslan.btc.adaptec.com> In-Reply-To: <Pine.BSF.4.21.0301141212540.39326-100000@root.org> References: <Pine.BSF.4.21.0301141212540.39326-100000@root.org>
next in thread | previous in thread | raw e-mail | index | archive | help
> On Tue, 14 Jan 2003, Justin T. Gibbs wrote: >> What you should probably do is trace the sense buffer both before >> and after the sense is retrieved. Perhaps fill the target sense >> buffer with a known pattern, log the transfer residual, and see if >> the number of bytes overwritten is as you would expect. > > i.e. > memset(csio.sense_data.sense_buf, 0xa5, sizeof csio.sense_data); > before sending the sync cache in camcontrol, then > printf("resid %d, sense_resid %d\n", csio.resid, csio.sense_resid); > afterwards. For the aic7xxx driver at least, I would suggest doing this in the driver since the csio's sense buffer is not the direct target of the DMA. -- Justin To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?615050000.1042576530>