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QEMU in user-mode emulation mode crashes when the user program jumps to an invalid address
Running this code:
void (*func)() = 0x12345678;
int main()
{
func();
return 0;
}
Produces the following output:
qemu-arm-static: /build/qemu-DqynNa/qemu-2.8+dfsg/translate-all.c:175: tb_lock: Assertion `!have_tb_lock' failed.
qemu-arm-static: /build/qemu-DqynNa/qemu-2.8+dfsg/translate-all.c:175: tb_lock: Assertion `!have_tb_lock' failed.
Segmentation fault
The expected result is as follows:
qemu: uncaught target signal 11 (Segmentation fault) - core dumped
Segmentation fault
I'm not sure exactly when we fixed this (the fix is probably in the 4.1 release) but as of current head-of-git this correctly generates the SIGSEGV.
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