Re: Bricked x86 CPU with software?

> On Mon, 2018-01-08 at 11:08 -0800, Tim Mouraveiko wrote: > > > > > > I think you missed one of my posts from last week. The code has > > nothing to do with linux. > > Like the 'f00f' bug in the Pentium days, there may well be a way that a > kernel can *prevent* the code sequence from killing

Re: Bricked x86 CPU with software?

> On Mon, 2018-01-08 at 11:08 -0800, Tim Mouraveiko wrote: > > > > > > I think you missed one of my posts from last week. The code has > > nothing to do with linux. > > Like the 'f00f' bug in the Pentium days, there may well be a way that a > kernel can *prevent* the code sequence from killing

Re: Bricked x86 CPU with software?

> On Mon 2018-01-08 07:58:33, Tim Mouraveiko wrote: > > > Hi! > > > > > > > > Is the sequence available from ring 3, or does it need ring 0? > > > > > > > > > > Can we get the code? Extraordinary claims and all that... > > > > > > > > > > > > > I did not test privilege level. Are you suggesting

Re: Bricked x86 CPU with software?

> On Mon 2018-01-08 07:58:33, Tim Mouraveiko wrote: > > > Hi! > > > > > > > > Is the sequence available from ring 3, or does it need ring 0? > > > > > > > > > > Can we get the code? Extraordinary claims and all that... > > > > > > > > > > > > > I did not test privilege level. Are you suggesting

Re: Bricked x86 CPU with software?

On Mon 2018-01-08 07:58:33, Tim Mouraveiko wrote: > > Hi! > > > > > > Is the sequence available from ring 3, or does it need ring 0? > > > > > > > > Can we get the code? Extraordinary claims and all that... > > > > > > > > > > I did not test privilege level. Are you suggesting that I put the code

Re: Bricked x86 CPU with software?

On Mon 2018-01-08 07:58:33, Tim Mouraveiko wrote: > > Hi! > > > > > > Is the sequence available from ring 3, or does it need ring 0? > > > > > > > > Can we get the code? Extraordinary claims and all that... > > > > > > > > > > I did not test privilege level. Are you suggesting that I put the code

Re: Bricked x86 CPU with software?

> On Monday 08 of January 2018, Tim Mouraveiko wrote: > > > Hi! > > > > > > > > Is the sequence available from ring 3, or does it need ring 0? > > > > > > > > > > Can we get the code? Extraordinary claims and all that... > > > > > > > > I did not test privilege level. Are you suggesting that I

Re: Bricked x86 CPU with software?

> On Monday 08 of January 2018, Tim Mouraveiko wrote: > > > Hi! > > > > > > > > Is the sequence available from ring 3, or does it need ring 0? > > > > > > > > > > Can we get the code? Extraordinary claims and all that... > > > > > > > > I did not test privilege level. Are you suggesting that I

Re: Bricked x86 CPU with software?

> Hi! > > > > Is the sequence available from ring 3, or does it need ring 0? > > > > > > Can we get the code? Extraordinary claims and all that... > > > > > > > I did not test privilege level. Are you suggesting that I put the code out > > there for everyone to > > see or what? > > Yes, that's

Re: Bricked x86 CPU with software?

> Hi! > > > > Is the sequence available from ring 3, or does it need ring 0? > > > > > > Can we get the code? Extraordinary claims and all that... > > > > > > > I did not test privilege level. Are you suggesting that I put the code out > > there for everyone to > > see or what? > > Yes, that's

Re: Bricked x86 CPU with software?

On 4.01.2018 02:47, Tim Mouraveiko wrote: > Hi, > > In all my years of extensive experience writing drivers and kernels, I never > came across a situation > where you could brick an x86 CPU. Not until recently, when I was working on > debugging a piece of > code and I bricked an Intel CPU.

Re: Bricked x86 CPU with software?

On 4.01.2018 02:47, Tim Mouraveiko wrote: > Hi, > > In all my years of extensive experience writing drivers and kernels, I never > came across a situation > where you could brick an x86 CPU. Not until recently, when I was working on > debugging a piece of > code and I bricked an Intel CPU.

Re: Bricked x86 CPU with software?

Hi! > > Is the sequence available from ring 3, or does it need ring 0? > > > > Can we get the code? Extraordinary claims and all that... > > > > I did not test privilege level. Are you suggesting that I put the code out > there for everyone to > see or what? Yes, that's what I'm suggesting.

Re: Bricked x86 CPU with software?

Hi! > > Is the sequence available from ring 3, or does it need ring 0? > > > > Can we get the code? Extraordinary claims and all that... > > > > I did not test privilege level. Are you suggesting that I put the code out > there for everyone to > see or what? Yes, that's what I'm suggesting.

Re: Bricked x86 CPU with software?

> Hi! > > On Thu 2018-01-04 17:21:36, Tim Mouraveiko wrote: > > > On Thu 2018-01-04 14:13:56, Tim Mouraveiko wrote: > > > > > > As I mentioned before, I repeatedly and fully power-cycled the > > > > > > motherboard and reset BIOS > > > > > > and etc. It made no difference. I can see that the

Re: Bricked x86 CPU with software?

> Hi! > > On Thu 2018-01-04 17:21:36, Tim Mouraveiko wrote: > > > On Thu 2018-01-04 14:13:56, Tim Mouraveiko wrote: > > > > > > As I mentioned before, I repeatedly and fully power-cycled the > > > > > > motherboard and reset BIOS > > > > > > and etc. It made no difference. I can see that the

Re: Bricked x86 CPU with software?

> On Thu, Jan 4, 2018 at 4:00 PM, Tim Mouraveiko wrote: > > Pavel, > > > > As I mentioned before, I repeatedly and fully power-cycled the motherboard > > and reset BIOS > > and etc. It made no difference. I can see that the processor was not > > drawing any power. The > >

Re: Bricked x86 CPU with software?

> On Thu, Jan 4, 2018 at 4:00 PM, Tim Mouraveiko wrote: > > Pavel, > > > > As I mentioned before, I repeatedly and fully power-cycled the motherboard > > and reset BIOS > > and etc. It made no difference. I can see that the processor was not > > drawing any power. The > > software code behaved

Re: Bricked x86 CPU with software?

> On 2018-01-05 10:21, Tim Mouraveiko wrote: > >> On Thu 2018-01-04 14:13:56, Tim Mouraveiko wrote: > >> Actually... I don't think your code works. That's why I'm curious. But > >> if it works, its rather a big news... and I'm sure Intel and cloud > >> providers are going to be interested. > >> >

Re: Bricked x86 CPU with software?

> On 2018-01-05 10:21, Tim Mouraveiko wrote: > >> On Thu 2018-01-04 14:13:56, Tim Mouraveiko wrote: > >> Actually... I don't think your code works. That's why I'm curious. But > >> if it works, its rather a big news... and I'm sure Intel and cloud > >> providers are going to be interested. > >> >

Re: Bricked x86 CPU with software?

Hi! On Thu 2018-01-04 17:21:36, Tim Mouraveiko wrote: > > On Thu 2018-01-04 14:13:56, Tim Mouraveiko wrote: > > > > > As I mentioned before, I repeatedly and fully power-cycled the > > > > > motherboard and reset BIOS > > > > > and etc. It made no difference. I can see that the processor was not

Re: Bricked x86 CPU with software?

Hi! On Thu 2018-01-04 17:21:36, Tim Mouraveiko wrote: > > On Thu 2018-01-04 14:13:56, Tim Mouraveiko wrote: > > > > > As I mentioned before, I repeatedly and fully power-cycled the > > > > > motherboard and reset BIOS > > > > > and etc. It made no difference. I can see that the processor was not

Re: Bricked x86 CPU with software?

On Thu, Jan 4, 2018 at 4:00 PM, Tim Mouraveiko wrote: > Pavel, > > As I mentioned before, I repeatedly and fully power-cycled the motherboard > and reset BIOS > and etc. It made no difference. I can see that the processor was not drawing > any power. The > software code

Re: Bricked x86 CPU with software?

On Thu, Jan 4, 2018 at 4:00 PM, Tim Mouraveiko wrote: > Pavel, > > As I mentioned before, I repeatedly and fully power-cycled the motherboard > and reset BIOS > and etc. It made no difference. I can see that the processor was not drawing > any power. The > software code behaved in a similar

Re: Bricked x86 CPU with software?

On 2018-01-05 10:21, Tim Mouraveiko wrote: >> On Thu 2018-01-04 14:13:56, Tim Mouraveiko wrote: >> Actually... I don't think your code works. That's why I'm curious. But >> if it works, its rather a big news... and I'm sure Intel and cloud >> providers are going to be interested. >> > > I first

Re: Bricked x86 CPU with software?

On 2018-01-05 10:21, Tim Mouraveiko wrote: >> On Thu 2018-01-04 14:13:56, Tim Mouraveiko wrote: >> Actually... I don't think your code works. That's why I'm curious. But >> if it works, its rather a big news... and I'm sure Intel and cloud >> providers are going to be interested. >> > > I first

Re: Bricked x86 CPU with software?

> On Thu 2018-01-04 14:13:56, Tim Mouraveiko wrote: > > > > As I mentioned before, I repeatedly and fully power-cycled the > > > > motherboard and reset BIOS > > > > and etc. It made no difference. I can see that the processor was not > > > > drawing any power. The > > > > software code behaved

Re: Bricked x86 CPU with software?

> On Thu 2018-01-04 14:13:56, Tim Mouraveiko wrote: > > > > As I mentioned before, I repeatedly and fully power-cycled the > > > > motherboard and reset BIOS > > > > and etc. It made no difference. I can see that the processor was not > > > > drawing any power. The > > > > software code behaved

Re: Bricked x86 CPU with software?

On Thu 2018-01-04 14:13:56, Tim Mouraveiko wrote: > > > As I mentioned before, I repeatedly and fully power-cycled the > > > motherboard and reset BIOS > > > and etc. It made no difference. I can see that the processor was not > > > drawing any power. The > > > software code behaved in a similar

Re: Bricked x86 CPU with software?

On Thu 2018-01-04 14:13:56, Tim Mouraveiko wrote: > > > As I mentioned before, I repeatedly and fully power-cycled the > > > motherboard and reset BIOS > > > and etc. It made no difference. I can see that the processor was not > > > drawing any power. The > > > software code behaved in a similar

Re: Bricked x86 CPU with software?

> > As I mentioned before, I repeatedly and fully power-cycled the motherboard > > and reset BIOS > > and etc. It made no difference. I can see that the processor was not > > drawing any power. The > > software code behaved in a similar fashion on other processors, until I > > fixed it so that

Re: Bricked x86 CPU with software?

> > As I mentioned before, I repeatedly and fully power-cycled the motherboard > > and reset BIOS > > and etc. It made no difference. I can see that the processor was not > > drawing any power. The > > software code behaved in a similar fashion on other processors, until I > > fixed it so that

Re: Bricked x86 CPU with software?

> On Thu, Jan 4, 2018 at 11:00 PM, Tim Mouraveiko wrote: > > Pavel, > > > > As I mentioned before, I repeatedly and fully power-cycled the motherboard > > and reset BIOS > > and etc. It made no difference. I can see that the processor was not > > drawing any power. The > >

Re: Bricked x86 CPU with software?

> On Thu, Jan 4, 2018 at 11:00 PM, Tim Mouraveiko wrote: > > Pavel, > > > > As I mentioned before, I repeatedly and fully power-cycled the motherboard > > and reset BIOS > > and etc. It made no difference. I can see that the processor was not > > drawing any power. The > > software code behaved

Re: Bricked x86 CPU with software?

Hi! > As I mentioned before, I repeatedly and fully power-cycled the motherboard > and reset BIOS > and etc. It made no difference. I can see that the processor was not drawing > any power. The > software code behaved in a similar fashion on other processors, until I fixed > it so that it

Re: Bricked x86 CPU with software?

Hi! > As I mentioned before, I repeatedly and fully power-cycled the motherboard > and reset BIOS > and etc. It made no difference. I can see that the processor was not drawing > any power. The > software code behaved in a similar fashion on other processors, until I fixed > it so that it

Re: Bricked x86 CPU with software?

On Thu, Jan 4, 2018 at 11:00 PM, Tim Mouraveiko wrote: > Pavel, > > As I mentioned before, I repeatedly and fully power-cycled the motherboard > and reset BIOS > and etc. It made no difference. I can see that the processor was not drawing > any power. The > software code

Re: Bricked x86 CPU with software?

On Thu, Jan 4, 2018 at 11:00 PM, Tim Mouraveiko wrote: > Pavel, > > As I mentioned before, I repeatedly and fully power-cycled the motherboard > and reset BIOS > and etc. It made no difference. I can see that the processor was not drawing > any power. The > software code behaved in a similar

Re: Bricked x86 CPU with software?

Pavel, As I mentioned before, I repeatedly and fully power-cycled the motherboard and reset BIOS and etc. It made no difference. I can see that the processor was not drawing any power. The software code behaved in a similar fashion on other processors, until I fixed it so that it would not

Re: Bricked x86 CPU with software?

Pavel, As I mentioned before, I repeatedly and fully power-cycled the motherboard and reset BIOS and etc. It made no difference. I can see that the processor was not drawing any power. The software code behaved in a similar fashion on other processors, until I fixed it so that it would not

Re: Bricked x86 CPU with software?

Hi! > In all my years of extensive experience writing drivers and kernels, I never > came across a situation > where you could brick an x86 CPU. Not until recently, when I was working on > debugging a piece of > code and I bricked an Intel CPU. I am not talking about an experimental >

Re: Bricked x86 CPU with software?

Hi! > In all my years of extensive experience writing drivers and kernels, I never > came across a situation > where you could brick an x86 CPU. Not until recently, when I was working on > debugging a piece of > code and I bricked an Intel CPU. I am not talking about an experimental >

Bricked x86 CPU with software?

Hi, In all my years of extensive experience writing drivers and kernels, I never came across a situation where you could brick an x86 CPU. Not until recently, when I was working on debugging a piece of code and I bricked an Intel CPU. I am not talking about an experimental motherboard or

Bricked x86 CPU with software?

Hi, In all my years of extensive experience writing drivers and kernels, I never came across a situation where you could brick an x86 CPU. Not until recently, when I was working on debugging a piece of code and I bricked an Intel CPU. I am not talking about an experimental motherboard or