From 83ac2b3d67afc9895a80e813118569e2a73236ab Mon Sep 17 00:00:00 2001 From: Damien Zammit Date: Sun, 26 Dec 2021 22:38:56 +1100 Subject: pci-arbiter,rumpdisk: Lock all memory for swapping This locks all memory in bootstrap processes so that disk driver dependencies don't get swapped out. Message-Id: <20211226113857.150525-5-damien@zamaudio.com> --- rumpdisk/main.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'rumpdisk/main.c') diff --git a/rumpdisk/main.c b/rumpdisk/main.c index bafe0250..a1873c31 100644 --- a/rumpdisk/main.c +++ b/rumpdisk/main.c @@ -25,6 +25,7 @@ #include #include #include +#include #include "libmachdev/machdev.h" #include "block-rump.h" @@ -113,6 +114,13 @@ main (int argc, char **argv) rump_register_block (); machdev_trivfs_init (argc, argv, bootstrap_resume_task, "rumpdisk", "/dev/rumpdisk", &bootstrap); + + /* Make sure we will not swap out, in case we drive the disk used for + swapping. */ + err = mlockall(MCL_CURRENT | MCL_FUTURE); + if (err) + error (1, errno, "cannot lock all memory"); + machdev_device_init (); err = pthread_create (&t, NULL, machdev_server, NULL); if (err) -- cgit v1.2.3