• Tony Luck's avatar
    x86/mce: Fix copy/paste error in exception table entries · 26a37ab3
    Tony Luck authored
    Back in commit:
    
      92b0729c ("x86/mm, x86/mce: Add memcpy_mcsafe()")
    
    ... I made a copy/paste error setting up the exception table entries
    and ended up with two for label .L_cache_w3 and none for .L_cache_w2.
    
    This means that if we take a machine check on:
    
      .L_cache_w2: movq 2*8(%rsi), %r10
    
    then we don't have an exception table entry for this instruction
    and we can't recover.
    
    Fix: s/3/2/
    Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
    Cc: <stable@vger.kernel.org>
    Cc: Andy Lutomirski <luto@kernel.org>
    Cc: Borislav Petkov <bp@alien8.de>
    Cc: Brian Gerst <brgerst@gmail.com>
    Cc: Denys Vlasenko <dvlasenk@redhat.com>
    Cc: H. Peter Anvin <hpa@zytor.com>
    Cc: Josh Poimboeuf <jpoimboe@redhat.com>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Fixes: 92b0729c ("x86/mm, x86/mce: Add memcpy_mcsafe()")
    Link: http://lkml.kernel.org/r/1490046030-25862-1-git-send-email-tony.luck@intel.comSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
    26a37ab3
memcpy_64.S 6.18 KB