I currently have the following x86_64 kernels: 2.6.22.9-91.fc7 2.6.22.7-85.fc7 ... on a Compaq Presario V6017AU with AMD Turion64 x2. Prior to installing 2.6.22.9-91, I have been using 2.6.22.7-85 for some time without any problems. However, after installing 2.6.22.9-91, I could not even get to the stage of logging in via X windows. I always get a freeze / hang during startup ... but the freeze is not consistent, it is quite random. Sometimes, during USB initialisation, sometimes after, etc... The only thing that I have tried to find out the difference is comparing the output in /var/log/messages between the 2 kernels. Some of the differences that i found was: 1) The with .7-85 kernel, it was using a "Generic RTC driver" while with the .9-91, it was using "Real Time Clock Driver v1.12ac". ( Are they even different drivers or is it the same driver which changed name from one version to another ? ) 2) .7-85 kernel logged the message kernel: drivers/rtc/hctosys.c: unable to open rtc device (rtc0) ... while .9-91 did not log this message. 3) .7-85 kernel logged the messages: kernel: rtc_cmos 00:07: rtc core: registered rtc_cmos as rtc0 kernel: rtc0: alarms up to one year, y3k ... which .9-91 did not log. Can anyone recommend another way of finding out why I would get a freeze during startup with .9-91 ?
