I've recently upgraded from SuSE 8.1 Pro to SuSE 9.1 Pro via a fresh install and am having big problems. I'm running a Dell PowerEdge 2550 with an integrated Adaptec Ultra3 AIC-7899, IBM Ulstrastar Ultra320 73 GB drive, and kernel was latest via YaST of 2.6.5.7-104-default. This is the same setup I've used for a long, long time with no problems under 8.1 Pro. At what seems to be completely random times I get tons of I/O errors and the machine completely ceases to function. I have syslog turned all the way up but nothing gets logged to syslog. Ocassionally I get to tty10 quickly enough to see: aic7xxx_abort returns 0x2000 SCSI error : <0 0 0 0 return code = 0x6000000 end_request: I/O error, dev sda, sector "varies but most recently 81773499". I've tried mutiple known good drives but the same problem occurs so unless I've had mass hard drive failures across multiple systems all at once, I'm fairly certain it's not a hard drive problem. I was using the aic7xxx module. I noticed that there was also an aic7xxx_old module available via modprobe -l | grep -i aic7. If I used YaST to look at possible modules, it shows aic79xx and aic7xxx as suggestions although it wouldn't load aic79xx. I tried using kernel 2.6.8-4cvs20040818184351-default from SuSE's ftp site but still had the same problem. After this morning's crash I've replaced the aic7xxx module with aic7xxx_old. We'll see how that goes. Is anyone successfully using SuSE Linux Professional 9.1 on a Dell Poweredge 2550? Any ideas? Go back to 2.4 kernel based system?.... Also, any good way to get some logging on this? I have cron sending the output of dmesg and a few other things to a file every ten minutes to try and catch something but it hasn't worked so far with gibberish being appended to and corrupting the file at every crash. Thanks, Jason Joines =================================