On Wed, Mar 07, 2018 at 06:24:09PM +0000, Ard Biesheuvel wrote:
On 2 March 2018 at 16:54, Greg KH email@example.com wrote:
On Fri, Mar 02, 2018 at 05:14:50PM +0800, Alex Shi wrote:
On 03/01/2018 11:24 PM, Greg KH wrote:
On Wed, Feb 28, 2018 at 11:56:22AM +0800, Alex Shi wrote:
This backport patchset fixed the meltdown issue, it's original branch: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git/log/?h=kpti A few dependency or fixingpatches are also picked up, if they are necessary and no functional changes.
The patchset also on repository: git://git.linaro.org/kernel/linux-linaro-stable.git lts-4.9-spectrevv2
No bug found yet from kernelci.org and lkft testing.
No bugs is good, but does it actually fix the meltdown problem? What did you test it on?
Oh, I have no A73/A75 cpu, so I can not reproduce meltdown bug.
Then why should I trust this backport at all?
Please test on the hardware that is affected, otherwise you do not know if your patches do anything or not.
I don't think it is feasible to test these backports by confirming that they make the fundamental issue go away. We simply don't have the code to reproduce all the variants, and we have to rely on the information provided by ARM Ltd. regarding which cores are affected and which aren't.
You really don't have the reproducers? Please work with ARM to resolve that, this should not be a non-tested set of patches. That's really worse than no patches at all, as if they were applied, that would provide a false-sense of "all is fixed".