From: Alexander van Heukelum Date: Fri, 21 Nov 2008 21:59:52 +0000 (+0100) Subject: x86: split out some macro's and move common code to paranoid_exit, fix X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=c81084114f6ff957bc6b5a0048350479c1c1f7b3;p=linux-beck.git x86: split out some macro's and move common code to paranoid_exit, fix Impact: fix bootup crash Even though it tested fine for me, there was still a bug in the first patch: I have overlooked a call to ptregscall_common. This patch fixes that, I think, but the code is never executed for me while running a debian install... (I tested this by putting an "1:jmp 1b" in there.) Signed-off-by: Ingo Molnar --- diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S index 692c1da61905..e5ddf573ded2 100644 --- a/arch/x86/kernel/entry_64.S +++ b/arch/x86/kernel/entry_64.S @@ -529,10 +529,13 @@ sysret_signal: jc sysret_audit #endif /* edx: work flags (arg3) */ - leaq do_notify_resume(%rip),%rax leaq -ARGOFFSET(%rsp),%rdi # &pt_regs -> arg1 xorl %esi,%esi # oldset -> arg2 - call ptregscall_common + SAVE_REST + FIXUP_TOP_OF_STACK %r11 + call do_notify_resume + RESTORE_TOP_OF_STACK %r11 + RESTORE_REST movl $_TIF_WORK_MASK,%edi /* Use IRET because user could have changed frame. This works because ptregscall_common has called FIXUP_TOP_OF_STACK. */