Hi, My -CURRENT box often panices when exiting from X server to console running in VESA_800x600 mode. I was observing this weird behaviour for quite some time now. Also I've noted that the chances of system going down is directly related to the presence of disk activity during the mode change - if there is a havy disk activity during this period then those chances are quite high. Therefore, I suspecting that there are some locking problems, but as my knowelege in this area is almost non-existent I would like to ask somebody to look at the attached crash log and let me know if there are any ideas. Please also don't hesitate to ask if any additional debugging is necessary.