No idea what's causing it. Seen on 2.3.6.

unknown_crash

java.lang.IllegalStateException: ActionBarView can only be used with android:layout_width="MATCH_PARENT" (or fill_parent)
    at android.support.v7.internal.widget.ActionBarView.onMeasure(ActionBarView.java:840)
    at android.view.View.measure(View.java:8313)
    at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3138)
    at android.widget.FrameLayout.onMeasure(FrameLayout.java:250)
    at android.support.v7.internal.widget.ActionBarContainer.onMeasure(ActionBarContainer.java:248)
    at android.view.View.measure(View.java:8313)
    at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3138)
    at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1017)
    at android.widget.LinearLayout.measureVertical(LinearLayout.java:386)
    at android.widget.LinearLayout.onMeasure(LinearLayout.java:309)
    at android.view.View.measure(View.java:8313)
    at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3138)
    at android.widget.FrameLayout.onMeasure(FrameLayout.java:250)
    at android.view.View.measure(View.java:8313)
    at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3138)
    at android.widget.FrameLayout.onMeasure(FrameLayout.java:250)
    at android.view.View.measure(View.java:8313)
    at android.view.ViewRoot.performTraversals(ViewRoot.java:843)
    at android.view.ViewRoot.handleMessage(ViewRoot.java:1863)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:130)
    at android.app.ActivityThread.main(ActivityThread.java:3687)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:507)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:878)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:636)
    at dalvik.system.NativeStart.main(Native Method)