Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1228975

[PATCH 0/2] x86: NMI vs paravirt fixes

From Andy Lutomirski <luto@kernel.org>
Newsgroups linux.kernel
Subject [PATCH 0/2] x86: NMI vs paravirt fixes
Date 2015-09-21 01:40 +0200
Message-ID <qaWn7-6bs-13@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

Show all headers | View raw


These are for x86/urgent.

This fixes at least one problem that Sasha can trigger using some
crazy configuration + Trinity.  I can't reproduce the full file of
nastiness that he's seeing, but these patches both look legit to me,
they fix what look like real bugs, and they seem to help Sasha's
tests.

Patch 1 is ugly.  Feel free to tell me to shove the asm into the
entry asm files, although that will involve duplicating it for
32-bit and 64-bit kernels.

Andy Lutomirski (2):
  x86/paravirt: Replace the paravirt nop with a bona fide empty function
  x86/nmi/64: Fix a paravirt stack-clobbering bug in the NMI code

 arch/x86/entry/entry_64.S  | 16 +++++++++++++++-
 arch/x86/kernel/paravirt.c | 16 ++++++++++++----
 2 files changed, 27 insertions(+), 5 deletions(-)

-- 
2.4.3

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | NextNext in thread | Find similar | Unroll thread


Thread

[PATCH 0/2] x86: NMI vs paravirt fixes Andy Lutomirski <luto@kernel.org> - 2015-09-21 01:40 +0200
  Re: [PATCH 0/2] x86: NMI vs paravirt fixes Andy Lutomirski <luto@amacapital.net> - 2015-09-21 21:20 +0200

csiph-web