From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailserv2.iuinc.com (IDENT:qmailr@mailserv2.iuinc.com [206.245.164.55]) by puffin.external.hp.com (8.9.3/8.9.3) with SMTP id MAA17640 for ; Wed, 24 Jan 2001 12:23:02 -0700 Received: from pc188-bre9.cable.ntl.com (HELO rhirst.linuxcare.com) (213.105.88.188) by mailserv2.iuinc.com with SMTP; 24 Jan 2001 19:26:55 -0000 Received: by rhirst.linuxcare.com (Postfix, from userid 501) id B9B40B008; Wed, 24 Jan 2001 19:14:57 +0000 (GMT) Date: Wed, 24 Jan 2001 19:14:57 +0000 From: Richard Hirst To: Greg Ingram Cc: Grant Grundler , parisc-linux@thepuffingroup.com Subject: Re: [parisc-linux] C100 and newest CVS bits Message-ID: <20010124191457.H3571@linuxcare.com> References: <200101241708.JAA20961@milano.cup.hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: ; from ingram@symsys.com on Wed, Jan 24, 2001 at 12:06:23PM -0600 List-ID: On Wed, Jan 24, 2001 at 12:06:23PM -0600, Greg Ingram wrote: > I've appended messages again. Is the message from sim700 important? Or > is it just telling me that I don't have that hardware? The very last line > is different too. > > - Greg > > SCSI subsystem driver Revision: 1.00 > sim700: Configuring 53c710 (SCSI-ID 7) at ffd06100, IRQ 86, options 0 > scsi0: Revision 0x2 > Post test1, istat 01, sstat0 00, dstat 84 > sim700: WARNING IRQ probe failed, (returned 0) > scsi0: Good, target data areas are dma coherent > scsi0: test 1 completed ok. > scsi0 : LASI/Simple 53c7xx > Vendor: SEAGATE Model: ST11200N SUN1.05 Rev: 8358 > Type: Direct-Access ANSI SCSI revision: 02 That lot was from sim700, and is ok. We are now entering the zalon (ncr53c8xx.c/zalon.c) driver. > zalon_scsi_callback: Zalon vers field is 0x1, IRQ 34 > ncr53c8xx: 53c720 detected > ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential > ncr53c720-0: restart (scsi reset). > scsi1 : ncr53c8xx - version 3.3b > Vendor: SEAGATE Model: ST32430W Rev: HP05 > Type: Direct-Access ANSI SCSI revision: 02 > ncr53c720-0-<6,0>: tagged command queue depth set to 8 Now we are probing the sim700 scsi bus > Detected scsi disk sda at scsi0, channel 0, id 0, lun 0 Now we are probing the FWD (zalon) scsi bus > Detected scsi disk sdb at scsi1, channel 0, id 6, lun 0 Now the system will try to access these disks looking for partition tables. > ccio-dma.c:460: Assertion pages_mapped failed! Your original message (assert size > 0) implies that one of the scsi drivers has passed down a request to map a zero length buffer. That is quite possible - a Test Unit Ready will likely have a zero length buffer as there is no data phase, and a driver might just try and map it anyway. I'll have a look at the drivers shortly. I cant explain why it used to work though, unless previous versions of ccio-dma.c handled zero length requests differently. Richard