Hi Jirka, Thanks for your answer, but I'm looking for a way to set RLIMIT_MEMLOCK without locking all VM memory. I'm wondering if there is a way to set RLIMIT_MEMLOCK without using the methods you wrote above. Regards, Roy On Tue, Mar 15, 2016 at 8:02 PM, Jiri Denemark <jdenemar@redhat.com> wrote:
On Fri, Feb 19, 2016 at 23:37:57 +0200, Roy Shterman wrote:
Yes,
I tried also running it as root user and it also didn't worked.
Do you know where libvirt (or QEMU) gets the value for process MEMLOCK? maybe i can change this value in libvirt code?
You can change it by specifying /domain/memtune/hard_limit in domain XML; see http://libvirt.org/formatdomain.html#elementsMemoryTuning
Libvirt will use the hard_limit value for RLIMIT_MEMLOCK, but only if needed. So it will be set only if any of the following is true: - you are on PPC64 - the /domain/memoryBacking/locked is set - a VFIO device passthrough is used - an RDMA migration is initiated.
Jirka