Re: [RFC v2 1/7] mm: Provide generic VDSO unmap and remap functions

2016-11-01 Thread Christopher Covington
On November 1, 2016 11:23:54 AM MDT, Dmitry Safonov <0x7f454...@gmail.com> wrote: >Hi Christopher, > > by this moment I got another patch for this. I hope, you don't mind >if I send it concurrently. I haven't sent it yet as I was testing it in > qemu. Please do, that'd be great. Thanks, Cov

Re: [RFC v2 1/7] mm: Provide generic VDSO unmap and remap functions

2016-11-01 Thread Dmitry Safonov
Hi Christopher, by this moment I got another patch for this. I hope, you don't mind if I send it concurrently. I haven't sent it yet as I was testing it in qemu. Thanks, Dmitry

[RFC v2 1/7] mm: Provide generic VDSO unmap and remap functions

2016-11-01 Thread Christopher Covington
When Address Space Layout Randomization (ASLR, randmaps) is enabled, the address of the VDSO fluctuates from one process to the next. If Checkpoint/Restore In Userspace (CRIU) is to fully replicate the memory map of a previous process, it must be able to remap the VDSO of a new process to the addre