Hi Qian, Sorry I haven't replied sooner, I've been travelling. Qian Cai <cai@xxxxxx> writes: > The commit 108c14858b9e ("locking/lockdep: Add support for dynamic > keys") introduced a boot warning on powerpc below, because since the > commit 2d4f567103ff ("KVM: PPC: Introduce kvm_tmp framework") adds > kvm_tmp[] into the .bss section and then free the rest of unused spaces > back to the page allocator. Thanks for debugging this, but I'd like to fix it differently. kvm_tmp has caused trouble before, with kmemleak, and it can also cause trouble with STRICT_KERNEL_RWX, so I'd like to change how it's done, rather than doing more hacks for it. It should just be a page in text that we use if needed, and don't free, which should avoid all these problems. I'll try and get that done and posted soon. cheers