Hi, hackers.
I have a SCSI host adapter, called 'DMX3194UP' manufactured by Taiwan company (http://www.domex.com.tw/). I had privately adapted its device driver to FreeBSD 4.4. (http://www.c-wind.com/~tomo/i91u-newbus.tar.gz) and, have used with kernel 4.4-R and 4.5-R, driving IBM SCSI DISK. This driver worked well, without any pariculer problems for a while. When I up-grade the OS to 4.6-R, the driver becomes croaking 'timed out' frequently. I do not have any debuggin tech, so, I could not make the points out. The only thing I know is that this simply means the driver's xxx_timeout routine was called, and I saw this never happens until some number of accesses to the DISK occur. Diffs between 4.5-R to 4.6-R src/sys was not helpful for me. What was changed in kernel which being likely to cause timeouts ? * this driver do not support DEVICE_POLLING. so, I did not made DEVICE_POLLING option enable. * this driver uses CAM I/F. Thanks, --- tomo. To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
