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authorMatthew Bauer <mjbauer95@gmail.com>2019-07-30T21·52-0400
committerMatthew Bauer <mjbauer95@gmail.com>2019-07-30T21·53-0400
commit9a0855bbb6546e792848e551e79f8efc40782eeb (patch)
tree3a329095fd6427730daf5cf171f3bc8731463716
parent11d853462925d0b57fe956962e07edf5751fd4c3 (diff)
Don’t rely on EPERM
startProcess does not appear to send the exit code to the helper
correctly. Not sure why this is, but it is probably safe to just
fallback on all sandbox errors.
-rw-r--r--src/libstore/build.cc4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/libstore/build.cc b/src/libstore/build.cc
index dd08ce7d771f..0f71e7511512 100644
--- a/src/libstore/build.cc
+++ b/src/libstore/build.cc
@@ -2320,7 +2320,7 @@ void DerivationGoal::startBuilder()
                parent. This is only done when sandbox-fallback is set
                to true (the default). */
             if (child == -1 && (errno == EPERM || errno == EINVAL) && settings.sandboxFallback)
-                _exit(EPERM);
+                _exit(1);
             if (child == -1) throw SysError("cloning builder process");
 
             writeFull(builderOut.writeSide.get(), std::to_string(child) + "\n");
@@ -2328,7 +2328,7 @@ void DerivationGoal::startBuilder()
         }, options);
 
         int res = helper.wait();
-        if (res == EPERM && settings.sandboxFallback) {
+        if (res != 0 && settings.sandboxFallback) {
             useChroot = false;
             goto fallback;
         } else if (res != 0)