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Re: [PATCH] [5/12] x86_64: Make patching more robust, fix paravirt issue

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From: Chris Wright <chrisw@...>
To: Andi Kleen <ak@...>
Cc: Jeremy Fitzhardinge <jeremy@...>, <patches@...>, <linux-kernel@...>, Linus Torvalds <torvalds@...>, Rusty Russell <rusty@...>, Chris Wright <chrisw@...>
Subject: Re: [PATCH] [5/12] x86_64: Make patching more robust, fix paravirt issue
Date: Saturday, August 18, 2007 - 4:32 pm

* Andi Kleen (ak@suse.de) wrote:

Yeah, this is the latest git.  The broken commit is Rusty's patch which,
after Linus reverted the write-protected remap changes, is no longer
necessary.  AFAICT patching is writing garbage into the insn stream.
I suspect it's copying an uninitialized temp buffer.

thanks,
-chris
-
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Messages in current thread:
[PATCH] [0/12] x86 Late merge bug fixes for 2.6.23, Andi Kleen, (Thu Aug 9, 8:41 am)
Re: [PATCH] [0/12] x86 Late merge bug fixes for 2.6.23, Muli Ben-Yehuda, (Thu Aug 9, 9:06 am)
Re: [PATCH] [0/12] x86 Late merge bug fixes for 2.6.23, Andi Kleen, (Thu Aug 9, 9:12 am)
[PATCH] [12/12] x86_64: Fix start_kernel warning, Andi Kleen, (Thu Aug 9, 8:41 am)
[PATCH] [11/12] x86_64: vdso.lds in arch/x86_64/vdso/.gitign..., Andi Kleen, (Thu Aug 9, 8:41 am)
[PATCH] [10/12] x86_64: Add warning in Documentation that ze..., Andi Kleen, (Thu Aug 9, 8:41 am)
[PATCH] [9/12] x86_64: Avoid NMI Watchdog and/or long wait i..., Andi Kleen, (Thu Aug 9, 8:41 am)
[PATCH] [8/12] x86_64: Use global flag to disable broken loc..., Andi Kleen, (Thu Aug 9, 8:41 am)
Re: [PATCH] [8/12] x86_64: Use global flag to disable broken..., Cal Peake, (Thu Aug 9, 12:46 pm)
Re: [PATCH] [8/12] x86_64: Use global flag to disable broken..., Andi Kleen, (Thu Aug 9, 12:50 pm)
[PATCH] [7/12] x86_64: really stop MCEs during code patching, Andi Kleen, (Thu Aug 9, 8:41 am)
[PATCH] [6/12] x86_64: Early segment setup for VT, Andi Kleen, (Thu Aug 9, 8:41 am)
Re: [PATCH] [6/12] x86_64: Early segment setup for VT, H. Peter Anvin, (Thu Oct 11, 5:30 pm)
[PATCH] [5/12] x86_64: Make patching more robust, fix paravi..., Andi Kleen, (Thu Aug 9, 8:41 am)
Re: [PATCH] [5/12] x86_64: Make patching more robust, fix pa..., Jeremy Fitzhardinge, (Fri Aug 17, 8:05 pm)
Re: [PATCH] [5/12] x86_64: Make patching more robust, fix pa..., Rusty Russell, (Sun Aug 19, 9:50 pm)
Re: [PATCH] [5/12] x86_64: Make patching more robust, fix pa..., Chris Wright, (Sun Aug 19, 10:07 pm)
Re: [PATCH] [5/12] x86_64: Make patching more robust, fix pa..., Jeremy Fitzhardinge, (Mon Aug 20, 2:15 am)
Re: [PATCH] [5/12] x86_64: Make patching more robust, fix pa..., Glauber de Oliveira Costa..., (Tue Aug 21, 3:30 am)
Re: [PATCH] [5/12] x86_64: Make patching more robust, fix pa..., Andi Kleen, (Tue Aug 21, 7:23 am)
Re: [PATCH] [5/12] x86_64: Make patching more robust, fix pa..., Glauber de Oliveira Costa..., (Tue Aug 21, 8:26 am)
Re: [PATCH] [5/12] x86_64: Make patching more robust, fix pa..., Andi Kleen, (Sat Aug 18, 5:49 am)
Re: [PATCH] [5/12] x86_64: Make patching more robust, fix pa..., Jeremy Fitzhardinge, (Sat Aug 18, 5:58 pm)
Re: [PATCH] [5/12] x86_64: Make patching more robust, fix pa..., Chris Wright, (Sat Aug 18, 4:32 pm)
Re: [PATCH] [5/12] x86_64: Make patching more robust, fix pa..., Linus Torvalds, (Sat Aug 18, 4:55 pm)
Re: [PATCH] [5/12] x86_64: Make patching more robust, fix pa..., Chris Wright, (Sat Aug 18, 5:31 pm)
[PATCH] x86: skip paravirt patching when appropriate, Chris Wright, (Sat Aug 18, 6:28 pm)
Re: [PATCH] x86: skip paravirt patching when appropriate, Zachary Amsden, (Sun Aug 19, 1:55 am)
Re: [PATCH] x86: skip paravirt patching when appropriate, Zachary Amsden, (Sat Aug 18, 11:08 pm)
Re: [PATCH] [5/12] x86_64: Make patching more robust, fix pa..., Chris Wright, (Fri Aug 17, 8:11 pm)
[PATCH] [4/12] x86_64: Disable CLFLUSH support again, Andi Kleen, (Thu Aug 9, 8:41 am)
Re: [PATCH] [4/12] x86_64: Disable CLFLUSH support again, Muli Ben-Yehuda, (Thu Aug 9, 9:11 am)
Re: [patches] [PATCH] [4/12] x86_64: Disable CLFLUSH support..., Jan Beulich, (Thu Aug 9, 9:29 am)
Re: [patches] [PATCH] [4/12] x86_64: Disable CLFLUSH support..., Muli Ben-Yehuda, (Thu Aug 9, 12:24 pm)
Re: [PATCH] [4/12] x86_64: Disable CLFLUSH support again, Andi Kleen, (Thu Aug 9, 9:12 am)
Re: [patches] [PATCH] [4/12] x86_64: Disable CLFLUSH support..., Jan Beulich, (Thu Aug 9, 8:54 am)
[PATCH] [3/12] x86_64: Don't mark __exitcall as __cold, Andi Kleen, (Thu Aug 9, 8:41 am)
[PATCH] [2/12] x86_64: Calgary - Fix mis-handled PCI topology, Andi Kleen, (Thu Aug 9, 8:41 am)
[PATCH] [1/12] x86: Work around mmio config space quirk on A..., Andi Kleen, (Thu Aug 9, 8:41 am)
Re: [PATCH] [1/12] x86: Work around mmio config space quirk ..., Linus Torvalds, (Sun Aug 12, 5:25 am)
Re: [PATCH] [1/12] x86: Work around mmio config space quirk ..., Andi Kleen, (Sun Aug 12, 6:03 am)
Re: [PATCH] [1/12] x86: Work around mmio config space quirk ..., Linus Torvalds, (Sun Aug 12, 3:15 pm)
Re: [PATCH] [1/12] x86: Work around mmio config space quirk ..., Dave Jones, (Sun Aug 12, 11:06 pm)
Re: [PATCH] [1/12] x86: Work around mmio config space quirk ..., Linus Torvalds, (Sun Aug 12, 11:26 pm)
Re: [PATCH] [1/12] x86: Work around mmio config space quirk ..., dean gaudet, (Sun Aug 12, 11:38 pm)
Re: [patches] [PATCH] [1/12] x86: Work around mmio config sp..., Joachim Deguara, (Fri Aug 10, 6:19 am)