On Mon, Jun 14, 2021 at 10:24:23AM +0530, Naresh Kamboju wrote:
On Sun, 13 Jun 2021 at 20:35, Greg Kroah-Hartman gregkh@linuxfoundation.org wrote:
On Sun, Jun 13, 2021 at 08:25:19PM +0530, Naresh Kamboju wrote:
The following error was noticed on stable-rc 5.12, 5.10, 5.4, 4.19, 4.14, 4.9 and 4.4 for i386 and arm.
make --silent --keep-going --jobs=8 O=/home/tuxbuild/.cache/tuxmake/builds/current ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- 'CC=sccache arm-linux-gnueabihf-gcc' 'HOSTCC=sccache gcc' In file included from /builds/linux/include/linux/kernel.h:11, from /builds/linux/include/linux/list.h:9, from /builds/linux/include/linux/preempt.h:11, from /builds/linux/include/linux/hardirq.h:5, from /builds/linux/include/linux/kvm_host.h:7, from /builds/linux/arch/arm/kvm/../../../virt/kvm/kvm_main.c:18: In function '__gfn_to_hva_memslot', inlined from '__gfn_to_hva_many.part.6' at /builds/linux/arch/arm/kvm/../../../virt/kvm/kvm_main.c:1446:9, inlined from '__gfn_to_hva_many' at /builds/linux/arch/arm/kvm/../../../virt/kvm/kvm_main.c:1434:22: /builds/linux/include/linux/compiler.h:417:38: error: call to '__compiletime_assert_59' declared with attribute error: BUILD_BUG_ON failed: sizeof(_i) > sizeof(long) _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^ Reported-by: Linux Kernel Functional Testing lkft@linaro.org
ref: https://gitlab.com/Linaro/lkft/mirrors/stable/linux-stable-rc/-/jobs/1342604...
Odd. Does Linus's tree have this problem?
The only arm changes was in arch/arm/include/asm/cpuidle.h in the tree right now. There are some kvm changes, but they are tiny...
Can you bisect this?
The bisect script pointing to,
commit 1aa1b47db53e0a66899d63103b3ac1d7f54816bc Author: Paolo Bonzini pbonzini@redhat.com Date: Tue Jun 8 15:31:42 2021 -0400 kvm: avoid speculation-based attacks from out-of-range memslot accesses
commit da27a83fd6cc7780fea190e1f5c19e87019da65c upstream.
Ah, so is Linus's tree also broken the same way?
thanks,
greg k-h