userspace app receive SIGSEGV, but not is crash, why?

[Lucha Chen]

Dear All,
  userspace app receive SIGSEGV, but not crash, why?
  The mtk kernel log is :
<4>[67330.976640] -(6)[25390:ndroid.systemui][25390:ndroid.systemui] sig 11
to [25390:ndroid.systemui] stat=R

Thanks
Lucha
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