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as requested by @thufschmitt https://github.com/NixOS/nix/pull/6814#discussion_r924275777

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This commit is contained in:
Adam Joseph 2022-07-19 03:33:12 -07:00
parent 5f51539f88
commit 99fcc91f67
1 changed files with 5 additions and 5 deletions
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10
src/libstore/build/local-derivation-goal.cc
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@ -855,11 +855,6 @@ void LocalDerivationGoal::startBuilder()
switch(errno) {
case EPERM:
case EINVAL: {
/* Otherwise exit with EPERM so we can handle this in the
parent. This is only done when sandbox-fallback is set
to true (the default). */
if (settings.sandboxFallback)
_exit(1);
if (!userNamespacesEnabled && errno==EPERM)
notice("user namespaces appear to be disabled; they are required for sandboxing; check /proc/sys/user/max_user_namespaces");
if (userNamespacesEnabled) {
@ -872,6 +867,11 @@ void LocalDerivationGoal::startBuilder()
Path procSelfNsUser = "/proc/self/ns/user";
if (!pathExists(procSelfNsUser))
notice("/proc/self/ns/user does not exist; your kernel was likely built without CONFIG_USER_NS=y, which is required for sandboxing");
/* Otherwise exit with EPERM so we can handle this in the
parent. This is only done when sandbox-fallback is set
to true (the default). */
if (settings.sandboxFallback)
_exit(1);
/* Mention sandbox-fallback in the error message so the user
knows that having it disabled contributed to the
unrecoverability of this failure */