On Wed, 2 Sep 2020 09:31:22 +0530, Aneesh Kumar K.V wrote: > The test is broken w.r.t page table update rules and results in kernel > crash as below. Disable the support until we get the tests updated. > > [ 21.083519] kernel BUG at arch/powerpc/mm/pgtable.c:304! > cpu 0x0: Vector: 700 (Program Check) at [c000000c6d1e76c0] > pc: c00000000009a5ec: assert_pte_locked+0x14c/0x380 > lr: c0000000005eeeec: pte_update+0x11c/0x190 > sp: c000000c6d1e7950 > msr: 8000000002029033 > current = 0xc000000c6d172c80 > paca = 0xc000000003ba0000 irqmask: 0x03 irq_happened: 0x01 > pid = 1, comm = swapper/0 > kernel BUG at arch/powerpc/mm/pgtable.c:304! > [link register ] c0000000005eeeec pte_update+0x11c/0x190 > [c000000c6d1e7950] 0000000000000001 (unreliable) > [c000000c6d1e79b0] c0000000005eee14 pte_update+0x44/0x190 > [c000000c6d1e7a10] c000000001a2ca9c pte_advanced_tests+0x160/0x3d8 > [c000000c6d1e7ab0] c000000001a2d4fc debug_vm_pgtable+0x7e8/0x1338 > [c000000c6d1e7ba0] c0000000000116ec do_one_initcall+0xac/0x5f0 > [c000000c6d1e7c80] c0000000019e4fac kernel_init_freeable+0x4dc/0x5a4 > [c000000c6d1e7db0] c000000000012474 kernel_init+0x24/0x160 > [c000000c6d1e7e20] c00000000000cbd0 ret_from_kernel_thread+0x5c/0x6c > > [...]
Applied to powerpc/fixes. [1/1] powerpc/mm: Remove DEBUG_VM_PGTABLE support on powerpc https://git.kernel.org/powerpc/c/675bceb097e6fb9769309093ec6f3d33a2fed9cc cheers