Date: Sun, 23 Jul 2000 18:07:16 -0500 (CDT) From: Mike Meyer <mwm@mired.org> To: current@freebsd.org Subject: ahc lockups in -current Message-ID: <14715.31396.10403.394414@guru.mired.org>
next in thread | raw e-mail | index | archive | help
It seems that the last changes to the ahc drivers (committed on the 18th) are causing my system to lock up. I'd check the aic7890 specific changes first, but that's just me. The problem is that when I start doing I/O to two drives, the system hangs. The SCSI controller and both drives(*) turn on their "I'm busy" LED, so I assume the scsi bus is hung. They OS is still there, but trying to do anything that touches the drives causes the process to lock up. I get no core dump and no messages to the console indicating any problems. With this version, I *do* get the following message at boot time that I didn't get before: (noperiph:ahc0:0:-1:-1): SCSI bus reset delivered. 0 SCBs aborted. The system configuration is: Supermicro motherboard with two PII/Xeons and a aic7890 on it. The aic has BIOS version 2.01 on it. Attached to that are: su-2.04# camcontrol devlist <SEAGATE ST39236LW 0004> at scbus0 target 0 lun 0 (pass0,da0) <SEAGATE ST39173W 5958> at scbus0 target 1 lun 0 (pass1,da1) <iomega jaz 1GB J.86> at scbus0 target 3 lun 0 (pass2,da2) <PIONEER CD-ROM DR-124X 1.06> at scbus0 target 4 lun 0 (pass3,cd0) <YAMAHA CRW4260 1.0q> at scbus0 target 5 lun 0 (pass4,cd1) <ARTEC AM12S 1.06> at scbus0 target 6 lun 0 (pass5) Target 0 is the system disk: /, /var, /usr, swap and some scratch space. Target 1 is data: /home, more scratch space (/usr/obj lives there) and more swap. The SCSI bus is: AM12S(6) -- AIC(7) -- da(1) -- da(0) -- jazz(3) -- cd(4) -- cd(5) -- term plug I'm a bit leary of the external scanner, so I unplugged it, made sure the AIC had termination set properly, and rebooted single user. Mounted /usr read-only, mounted the scratch space on da1, and did a cp -r of /usr to the scratch space. The system locked up in the same state as described above. Trying the same test - except I left the scanner plugged in - with a kernel built with the old version of the ahc driver worked fine. In fact, building the world with /usr/src and /usr/obj on different disks has been working fine for a while now. I'm hoping to get some guidance from someone who's familiar with the code before I start digging into it. If more information would be useful (dmesg output? config file? other?), let me know. If there's somne specific testing to do - including, if needed, borrowing a 2940 and moving the drives to that to try things on - let me know. Thanx, <mike *) When rebooting after the first such crash, the system locked up during fsck with the jazz drive lit as active as well. Yes, the jazz filesystem is mounted at boot. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?14715.31396.10403.394414>