Date: Sat, 6 Jan 2001 19:57:23 +0000 (GMT) From: Darren Joy <darrenj@uk.uu.net> To: freebsd-scsi@freebsd.org Subject: Continuing Problems with DC390W and 4.2 Release Message-ID: <Pine.BSF.4.21.0101061900290.8530-100000@yukon.cam.uk.internal>
next in thread | raw e-mail | index | archive | help
I wrote to this list at the end of November with a problem I was having with 4.2 Release and my Tekram DC390W. I had the machine running 3.2 Release happily, without any problems. Then as I reinstalled with 4.2, I found that the machine would lock up with errors reported from the SYM driver. I have revisited this hardware now with the intention of getting it running rather than sitting there switched off. I want my machine back! In response to my last post, Gerard suggested a using the "ncr" driver instead of "sym", as this was the one used in 3.2. By doing a 4.2 install, and omitting the ports and src, I managed to get FreeBSD installed on this machine before it locked up. Then post installation, added the sources distribution and made my custom kernel using the "ncr" driver. Alas, I am still seeing problems, the symptoms being the same as those experienced with the "sym" driver. If I try to install the ports distibution, I get the following errors : ncr0: queue empty ncr0: queue empty ncr0: queue empty ncr0: queue empty <repeat indefinitely> A colleague once suggested to me that disabling Tagged Command Queueing could help. This I did in the controller BIOS, however upon bootup I see : /kernel: ncr0: <ncr 53c825a fast10 wide scsi> port 0xe400-0xe4ff mem 0xeb001000-0xeb001fff,0xeb000000-0xeb0000f f irq 15 at device 15.0 on pci0 /kernel: da0 at ncr0 bus 0 target 0 lun 0 /kernel: da0: <CONNER CFP2105S 2.14GB 1524> Fixed Direct Access SCSI-2 device /kernel: da0: 10.000MB/s transfers (10.000MHz, offset 8), Tagged Queueing Enabled /kernel: da0: 2048MB (4194304 512 byte sectors: 255H 63S/T 261C) My thinking here is that disabling Tagged Command Queueing may cure my woes, but FreeBSD seems to be enabling it regardless! I have double-checked the controller BIOS, and Tagged Command Queueing is definitely disabled for this device ( there's no option to disable it globally ), indeed, disabled for every individual device. I even tried reducing the queue length to the minimum setting allowed in the BIOS, but to no avail. And of course, I have tried it with Tagged Queueing enabled. Can anyone offer any help as to how I might get the NCR ( or SYM ) to disable Tagged Command Queueing? Any ideas appreciated. Regards -- Darren Joy 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?Pine.BSF.4.21.0101061900290.8530-100000>