Commit e4d9df4f authored Sep 08, 2014 by Luiz Capitulino

exec: file_ram_alloc(): print error when prealloc fails



If memory allocation fails when using the -mem-prealloc command-line
option, QEMU exits without printing any error information to
the user:

 # qemu [...] -m 1G -mem-prealloc -mem-path /dev/hugepages
 # echo $?
 1

This commit adds an error message, so that we print instead:

 # qemu [...] -m 1G -mem-prealloc -mem-path /dev/hugepages
 qemu: unable to map backing store for hugepages: Cannot allocate memory

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>

parent 5fb9b5b9

exec.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1130,6 +1130,7 @@ static void file_ram_alloc(RAMBlock block,

		error:
		if (mem_prealloc) {
		error_report("%s\n", error_get_pretty(*errp));
		exit(1);
		}
		return NULL;