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authorMichael Ellerman <mpe@ellerman.id.au>2018-07-24 15:53:22 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2018-10-20 13:26:47 +1100
commitb7683fc66eba91674e52c30f4d8e596bfb5cbcf4 (patch)
treee724c8201aa93f0d70b86ed37ee47597afefb882 /arch/powerpc
parent0d923962ab69c27cca664a2d535e90ef655110ca (diff)
selftests/powerpc: Add a test of wild bctr
This tests that a bctr (Branch to counter and link), ie. a function call, to a wildly out-of-bounds address is handled correctly. Some old kernel versions didn't handle it correctly, see eg: "powerpc/slb: Force a full SLB flush when we insert for a bad EA" https://lists.ozlabs.org/pipermail/linuxppc-dev/2017-April/157397.html Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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