FYI, we noticed the below changes on https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master commit 58122bf1d856a4ea9581d62a07c557d997d46a19 ("x86/fpu: Default eagerfpu=on on all CPUs") [ 17.097301] WARNING: CPU: 0 PID: 1 at arch/x86/include/asm/fpu/internal.h:529 fpu__restore+0x28f/0x9ab() [ 17.099191] CPU: 0 PID: 1 Comm: init Not tainted 4.5.0-rc3-00015-g58122bf #1 [ 17.100373] ffff88000ae17c38 ffffffff85405ca8 0000000000000002 0000000000000020 [ 17.101747] 0000000000000001 0000000000000000 ffff88000ae17c70 ffffffff818f024e [ 17.103110] ffff88000ae17cb0 ffffffff81138526 0000000900000000 ffff88000ae113c0 [ 17.104543] Call Trace: [ 17.104980] [] dump_stack+0x19/0x1b [ 17.105854] [] warn_slowpath_common+0x1a5/0x1c0 [ 17.106895] [] warn_slowpath_null+0x1a/0x1c [ 17.107904] [] fpu__restore+0x28f/0x9ab [ 17.108834] [] __fpu__restore_sig+0xc3e/0x1a3a [ 17.109862] [] ? ___preempt_schedule+0x12/0x14 [ 17.110916] [] fpu__restore_sig+0xf5/0x102 [ 17.111887] [] ia32_restore_sigcontext+0x586/0x5af [ 17.112987] [] sys32_sigreturn+0x246/0x317 [ 17.113956] [] ? get_sigframe+0x719/0x719 [ 17.115108] [] do_syscall_32_irqs_off+0x2b2/0x789 [ 17.116179] [] entry_INT80_compat+0x38/0x50 [ 17.117161] ---[ end trace cb640c01126c054b ]--- Thanks, Kernel Test Robot