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Date: Sun, 12 Aug 2007 17:12:27 +0400 From: Alexey Dobriyan <adobriyan@...il.com> To: Andi Kleen <andi@...stfloor.org> Cc: Petr Vandrovec <petr@...drovec.name>, discuss@...-64.org, linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org Subject: Re: [PATCH] Fix triplefault on x86-64 bootup On Sun, Aug 12, 2007 at 03:53:57PM +0200, Andi Kleen wrote: > Alexey Dobriyan <adobriyan@...il.com> writes: > > > On Sun, Aug 12, 2007 at 10:12:52AM +0200, Petr Vandrovec wrote: > > > --- a/arch/x86_64/lib/memcpy.S > > > +++ b/arch/x86_64/lib/memcpy.S > > > @@ -124,6 +124,8 @@ ENDPROC(__memcpy) > > > .quad memcpy > > > .quad 1b > > > .byte X86_FEATURE_REP_GOOD > > > - .byte .Lfinal - memcpy > > > + /* Replace only beginning, memcpy is used to apply alternatives, so it > > > + * is silly to overwrite itself with nops - reboot is only outcome... */ > > > + .byte 2b - 1b > > > .byte 2b - 1b > > > .previous > > > > Thanks, this fixes E6400 reboots on bootup here. > > Please test with only ab144f5ec64c42218a555ec1dbde6b60cf2982d6 > applied (or rather a few patches back in the git history) > I bet that fixes it already. Sorry? /me pulls /me recompiles /me sees reboot on boot /me goes in short unprejudiced bisect session bisections points to "i386: Make patching more robust, fix paravirt issue" /me sees Petr's patch above patch fixes problem - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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