Is this normal for the kernel_task to take so much RAM. Here is what top shows
top -Fs20 -o-rsize -S
PID COMMAND %CPU TIME #TH #PRTS #MREGS RPRVT RSHRD RSIZE VSIZE
0 kernel_tas 0.0% 14:22.04 46 2 1183 21.7M 0B 207M 1.17G
3955 firefox-bi 0.0% 3:31.13 10 187 626 75.6M 48.1M 104M 405M
1769...
After the update the mac is not recognising the usb hub that i have. my keyboard is connected to the hub, and it was working perfectly before the update.
also to note is that i can use the hub once i replug it in...