Re: [elrepo] Announcement: EL7 New kernel-ml Release [4.15.0-1]

2018-01-30 Thread Trevor Hemsley
Sam I'm not ELRepo but I don't think they can do that until/unless RH fix the compilers in the distro to be retpoline aware. If they do. And, in any case, Intel have pretty much said "don't use the new microcode" so there is no working microcode available that the kernel can use anyway. All the

Re: [elrepo] Announcement: EL7 New kernel-ml Release [4.15.0-1]

2018-01-30 Thread Sam McLeod
Thanks Lachlan, So the key to having IBRS/IBPB is a retpolite aware compiler... >> * Kernel compiled with a retpoline-aware compiler: NO (kernel reports >> minimal retpoline compilation) What a mess this whole thing is (preaching to the choir I'm sure) - it's turned my head inside out

Re: [elrepo] Announcement: EL7 New kernel-ml Release [4.15.0-1]

2018-01-30 Thread Sam McLeod
Hi Trevor, I didn't think that to compile a kernel with IBRS/IBPB your compiler had to be updated as well? I thought that was a seperate issue but perhaps I'm mistaken. -- Sam McLeod https://smcleod.net https://twitter.com/s_mcleod > On 31 Jan 2018, at 12:22 am, Trevor Hemsley

Re: [elrepo] Announcement: EL7 New kernel-ml Release [4.15.0-1]

2018-01-30 Thread Lachlan Musicman
On 31 Jan. 2018 10:35 am, "Sam McLeod" wrote: Hi Trevor, I didn't think that to compile a kernel with IBRS/IBPB your *compiler* had to be updated as well? I thought that was a seperate issue but perhaps I'm mistaken. Yes, it does require a newer compiler...you can