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 95agQj1/ 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Howlett wrote: > [..] > > @@ -2450,17 +2452,17 @@ do_vmi_align_munmap(struct vma_iterator *vmi, struct vm_area_struct *vma, > > #if defined(CONFIG_DEBUG_VM_MAPLE_TREE) > > /* Make sure no VMAs are about to be lost. */ > > { > > - MA_STATE(test, &mt_detach, start, end - 1); > > + MA_STATE(test, &mt_detach, 0, 0); > > struct vm_area_struct *vma_mas, *vma_test; > > int test_count = 0; > > > > vma_iter_set(vmi, start); > > rcu_read_lock(); > > - vma_test = mas_find(&test, end - 1); > > + vma_test = mas_find(&test, count - 1); > > for_each_vma_range(*vmi, vma_mas, end) { > > BUG_ON(vma_mas != vma_test); > > test_count++; > > - vma_test = mas_next(&test, end - 1); > > + vma_test = mas_next(&test, count - 1); > > } > > rcu_read_unlock(); > > BUG_ON(count != test_count); > > Something isn't quite working, I'm hitting BUG_ON(vma_mas != vma_test) Is this with next by any chance? There's a merge conflict which I'll have to fix, but I won't be getting to it in time so the patches will not make this merge window. > > [ 8.156437] ------------[ cut here ]------------ > [ 8.160473] kernel BUG at mm/mmap.c:2439! > [ 8.163894] invalid opcode: 0000 [#1] PREEMPT SMP PTI > > RIP: 0010:do_vmi_align_munmap+0x489/0x8a0 > > [ 8.207867] Call Trace: > [ 8.208463] > [ 8.209018] ? die+0x32/0x80 > [ 8.209709] ? do_trap+0xd2/0x100 > [ 8.210520] ? do_vmi_align_munmap+0x489/0x8a0 > [ 8.211576] ? do_vmi_align_munmap+0x489/0x8a0 > [ 8.212639] ? do_error_trap+0x94/0x110 > [ 8.213549] ? do_vmi_align_munmap+0x489/0x8a0 > [ 8.214581] ? exc_invalid_op+0x49/0x60 > [ 8.215494] ? do_vmi_align_munmap+0x489/0x8a0 > [ 8.216576] ? asm_exc_invalid_op+0x16/0x20 > [ 8.217562] ? do_vmi_align_munmap+0x489/0x8a0 > [ 8.218626] do_vmi_munmap+0xc7/0x120 > [ 8.219494] __vm_munmap+0xaa/0x1c0 > [ 8.220370] __x64_sys_munmap+0x17/0x20 > [ 8.221275] do_syscall_64+0x34/0x80 > [ 8.222165] entry_SYSCALL_64_after_hwframe+0x63/0xcd > [ 8.223359] RIP: 0033:0x7fdb0e2fca97 > [ 8.224224] Code: ff ff ff ff c3 66 0f 1f 44 00 00 f7 d8 89 05 20 28 01 00 48 c7 c0 ff ff ff ff c3 0f 1f 84 00 00 00 00 00 b8 0b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8d 0d f9 27 01 00 f7 d8 89 01 48 83 > [ 8.228432] RSP: 002b:00007ffd15458348 EFLAGS: 00000202 ORIG_RAX: 000000000000000b > [ 8.230175] RAX: ffffffffffffffda RBX: 0000562081a347b0 RCX: 00007fdb0e2fca97 > [ 8.231833] RDX: 0000000000000002 RSI: 0000000000004010 RDI: 00007fdb0e2d5000 > [ 8.233513] RBP: 00007ffd154584d0 R08: 0000000000000000 R09: 0000562081a3fd30 > [ 8.235178] R10: 0000562081a3fd18 R11: 0000000000000202 R12: 00007ffd15458388 > [ 8.236861] R13: 00007ffd15458438 R14: 00007ffd15458370 R15: 0000562081a347b0