Thanks Greg, Andy How about c198b121b1a1d7a7171770c634cd49191bac4477? Will both patches go to stable kernel? BR. Ning. -----Original Message----- From: gregkh@xxxxxxxxxxxxxxxxxxx [mailto:gregkh@xxxxxxxxxxxxxxxxxxx] Sent: Tuesday, January 23, 2018 3:26 PM To: Andy Lutomirski <luto@xxxxxxxxxx> Cc: Zhang, Ning A <ning.a.zhang@xxxxxxxxx>; tglx@xxxxxxxxxxxxx; stable@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx Subject: Re: backport Rewrite sync_core() to use IRET-to-self to stable kernels? On Mon, Jan 22, 2018 at 07:06:29PM -0800, Andy Lutomirski wrote: > On Mon, Jan 22, 2018 at 6:59 PM, Zhang, Ning A <ning.a.zhang@xxxxxxxxx> wrote: > > hello, Greg, Andy, Thomas > > > > would you like to backport these two patches to LTS kernel? > > > > https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable. > > git/commit/arch/x86/include/asm/processor.h?h=v4.14.14&id=1c52d859cb > > 2d417e7216d3e56bb7fea88444cec9 > > > > x86/asm/32: Make sync_core() handle missing CPUID on all 32-bit > > kernels > > > > https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable. > > git/commit/arch/x86/include/asm/processor.h?h=v4.14.14&id=c198b121b1 > > a1d7a7171770c634cd49191bac4477 > > > > x86/asm: Rewrite sync_core() to use IRET-to-self > > > > I'd be in favor of backporting > 1c52d859cb2d417e7216d3e56bb7fea88444cec9. I see no compelling reason > to backport the other one, since it doesn't fix a bug. Greg, can you > do this? I'll work on this after this round of stable kernels are released. thanks, greg k-h