When spawning a new container (via clone()) we allocate stack for lxcContainerChild(). So far, we allocate 4 pages for the stack and this used to be enough until we started rewriting everything to glib. With glib we switched to g_strerror() which localizes errno strings and thus increases stack usage, while the previously used strerror_r() was more compact.
Fortunately, the solution is easy - just increase how much stack the child can use (16 pages ought to be enough for anybody). Resolves: https://gitlab.com/libvirt/libvirt/-/issues/511 Signed-off-by: Michal Privoznik <mpriv...@redhat.com> --- src/lxc/lxc_container.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/lxc/lxc_container.c b/src/lxc/lxc_container.c index 63cf283285..f741a754ce 100644 --- a/src/lxc/lxc_container.c +++ b/src/lxc/lxc_container.c @@ -2132,7 +2132,7 @@ int lxcContainerStart(virDomainDef *def, { pid_t pid; int cflags; - int stacksize = getpagesize() * 4; + int stacksize = getpagesize() * 16; g_autofree char *stack = NULL; char *stacktop; lxc_child_argv_t args = { -- 2.41.0
