On 2022-02-25, Robert Nagy wrote:
> Maybe we need a default vmd class? What do you guys think?
Regardless of what the limit is, this seems like a daemon where people
will bump into the limit. Perhaps a reminder is in order too?
Index: vm.c
===================================================================
RCS file: /cvs/src/usr.sbin/vmd/vm.c,v
retrieving revision 1.67
diff -u -p -r1.67 vm.c
--- vm.c 30 Dec 2021 08:12:23 -0000 1.67
+++ vm.c 25 Feb 2022 18:42:39 -0000
@@ -26,6 +26,7 @@
#include <sys/socket.h>
#include <sys/time.h>
#include <sys/mman.h>
+#include <sys/resource.h>
#include <dev/ic/i8253reg.h>
#include <dev/isa/isareg.h>
@@ -292,8 +293,12 @@ start_vm(struct vmd_vm *vm, int fd)
ret = alloc_guest_mem(vcp);
if (ret) {
+ struct rlimit lim;
+ const char *msg = "could not allocate guest memory - exiting";
+ if (getrlimit(RLIMIT_DATA, &lim) == 0)
+ msg = "could not allocate guest memory (data limit is
%llu) - exiting";
errno = ret;
- fatal("could not allocate guest memory - exiting");
+ fatal(msg, lim.rlim_cur);
}
ret = vmm_create_vm(vcp);
