15 lines
440 B
C
15 lines
440 B
C
// test bad pointer for user-level fault handler
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// this is going to fault in the fault handler accessing eip (always!)
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// so eventually the kernel kills it (PFM_KILL) because
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// we outrun the stack with invocations of the user-level handler
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#include <inc/lib.h>
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void
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umain(int argc, char **argv)
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{
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sys_page_alloc(0, (void*) (UXSTACKTOP - PGSIZE), PTE_P|PTE_U|PTE_W);
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sys_env_set_pgfault_upcall(0, (void*) 0xDeadBeef);
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*(int*)0 = 0;
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}
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