出现ACCESS VIOLATION SUMMARY怎么解决？

Greyhound

emerge的时候是root权限

make[2]: Entering directory `/var/tmp/portage/qterm-0.4.0_pre2/work/qterm-0.4.0pre2'
make[2]: Leaving directory `/var/tmp/portage/qterm-0.4.0_pre2/work/qterm-0.4.0pre2'
make[1]: Leaving directory `/var/tmp/portage/qterm-0.4.0_pre2/work/qterm-0.4.0pre2'
--------------------------- ACCESS VIOLATION SUMMARY ---------------------------
LOG FILE = "/tmp/sandbox-x11-misc_-_qterm-0.4.0_pre2-13771.log"

open_wr:   /usr/qt/3/etc/settings/.qtrc.lock
open_wr:   /usr/qt/3/etc/settings/.qtrc.lock
--------------------------------------------------------------------------------

meteo

FEATURES="-sandbox" emerge qterm
或者修改/etc/make.conf里面FEATURES那一行，加上"-sandbox"

kingwzb

请问这个含义是什么？