> Here is another warning bisected to the same commit. > > https://github.com/hansendc/linux.git github-mpx commit > 4d90fc49c73730c09d7afd515f9c4e08d30229bd ("x86/xsaves: Define and use > user_xstate_size for xstate size in signal context") > [ 6.210858] WARNING: CPU: 3 PID: 168 at arch/x86/kernel/xsave.c:306 > save_xstate_sig+0x3a7/0x3d0() > [ 6.210860] mismatched xstate sizes
The issue has been fixed in https://lkml.org/lkml/2015/5/8/737 The patch in this git tree missed the following part when ported to this git tree. diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c index 00918327..8a7b96b 100644 --- a/arch/x86/kernel/i387.c +++ b/arch/x86/kernel/i387.c @@ -166,6 +166,7 @@ static void init_thread_xstate(void) setup_clear_cpu_cap(X86_FEATURE_XSAVE); setup_clear_cpu_cap(X86_FEATURE_XSAVEOPT); xstate_size = sizeof(struct i387_soft_struct); + user_xstate_size = xstate_size; return; } @@ -173,6 +174,8 @@ static void init_thread_xstate(void) xstate_size = sizeof(struct i387_fxsave_struct); else xstate_size = sizeof(struct i387_fsave_struct); + + user_xstate_size = xstate_size; } /* Thanks. -Fenghua -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
