opera 疯狂占用CPU问题

下午突然发现CPU开始狂飙,发现是oprea导致,kill掉重新启动,还是一样,不开任何网页也是.
重新emerge opera还是同样效果.
用strace 查看发现不停的显示:
gettimeofday({1253797578, 797428}, NULL) = 0
gettimeofday({1253797578, 797455}, NULL) = 0
gettimeofday({1253797578, 797486}, NULL) = 0
gettimeofday({1253797578, 797515}, NULL) = 0
gettimeofday({1253797578, 797543}, NULL) = 0
gettimeofday({1253797578, 797571}, NULL) = 0
gettimeofday({1253797578, 797598}, NULL) = 0
gettimeofday({1253797578, 797641}, NULL) = 0
gettimeofday({1253797578, 797669}, NULL) = 0
gettimeofday({1253797578, 797697}, NULL) = 0

不停的刷