Re: Intel CPU design flaw - FreeBSD affected? // disabling _R_DTSC

2018-01-05 Thread Andrew Reilly
On Fri, Jan 05, 2018 at 02:27:40AM +0800, blubee blubeeme wrote: > I'd love to see if RISC-V is vulnerable to this? > > I think they are in the best position to capitalize on this clusterfk... It's a micro-architecture flaw, not an instruction set flaw, so just as for ARM and amd64, it will

Re: Intel CPU design flaw - FreeBSD affected? // disabling _R_DTSC

2018-01-04 Thread blubee blubeeme
On Fri, Jan 5, 2018 at 2:25 AM, Klaus P. Ohrhallinger wrote: > On 04.01.2018 19:23, Klaus P. Ohrhallinger wrote: > > Hello, > > > > I disabled the ldtsc and ldtscp instructions for usermode on one of my > > production servers: > > > > Oops, RDTSC of course. > >

Re: Intel CPU design flaw - FreeBSD affected? // disabling _R_DTSC

2018-01-04 Thread Klaus P. Ohrhallinger
On 04.01.2018 19:23, Klaus P. Ohrhallinger wrote: > Hello, > > I disabled the ldtsc and ldtscp instructions for usermode on one of my > production servers: > Oops, RDTSC of course. ___ freebsd-current@freebsd.org mailing list