diff options
| -rw-r--r-- | src/libstore/build.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libstore/build.cc b/src/libstore/build.cc index 4192c6c659eb..02faa5c9d873 100644 --- a/src/libstore/build.cc +++ b/src/libstore/build.cc @@ -2175,7 +2175,7 @@ void DerivationGoal::startBuilder() size_t stackSize = 1 * 1024 * 1024; char * stack = (char *) mmap(0, stackSize, PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS | MAP_STACK, -1, 0); - if (!stack) throw SysError("allocating stack"); + if (stack == MAP_FAILED) throw SysError("allocating stack"); int flags = CLONE_NEWPID | CLONE_NEWNS | CLONE_NEWIPC | CLONE_NEWUTS | CLONE_PARENT | SIGCHLD; if (!fixedOutput) flags |= CLONE_NEWNET; pid_t child = clone(childEntry, stack + stackSize, flags, this); |