From: Borislav Petkov Date: Thu, 9 May 2013 10:02:29 +0000 (+0200) Subject: x86: Extend #DF debugging aid to 64-bit X-Git-Tag: omap-for-v3.11/fixes-for-merge-window~56^2~1 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4d067d8e056d76a3327f0517c7722db55e7888fc;p=pandora-kernel.git x86: Extend #DF debugging aid to 64-bit It is sometimes very helpful to be able to pinpoint the location which causes a double fault before it turns into a triple fault and the machine reboots. We have this for 32-bit already so extend it to 64-bit. On 64-bit we get the register snapshot at #DF time and not from the first exception which actually causes the #DF. It should be close enough, though. [ hpa: and definitely better than nothing, which is what we have now. ] Signed-off-by: Borislav Petkov Link: http://lkml.kernel.org/r/1368093749-31296-1-git-send-email-bp@alien8.de Signed-off-by: H. Peter Anvin --- Reading git-diff-tree failed