diff options
Diffstat (limited to 'nptl/allocatestack.c')
| -rw-r--r-- | nptl/allocatestack.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/nptl/allocatestack.c b/nptl/allocatestack.c index c7adbcc..f9d8cdf 100644 --- a/nptl/allocatestack.c +++ b/nptl/allocatestack.c @@ -369,6 +369,12 @@ allocate_stack (const struct pthread_attr *attr, struct pthread **pdp, if (__glibc_unlikely (mem == MAP_FAILED)) return errno; + /* Do madvise in case the tunable glibc.pthread.stack_hugetlb is + set to 0, disabling hugetlb. */ + if (__glibc_unlikely (__nptl_stack_hugetlb == 0) + && __madvise (mem, size, MADV_NOHUGEPAGE) != 0) + return errno; + /* SIZE is guaranteed to be greater than zero. So we can never get a null pointer back from mmap. */ assert (mem != NULL); |