On Wed, Jan 10, 2018 at 5:13 AM, Oren Berman <oren(a)lightbitslabs.com> wrote:
A few more updates:
a) This issue does not happen a lot I need to do a lot of power cycles for
this to happen.
b) We use 2 numa nodes but for some reason it happens only on the second
c) We added a debug feature that when page fault occurs we will trigger a
thread from command line in the kernel(through configfs) that will read
any physical address that we give it. When we give it the faulty address -
the thread succeeds reading from it with no page fault.
We verified that it accessed the same virtual address that caused the page
Does the problem go away if you specify:
...on the kernel command line?