Currently, hugepage mountpoints will be used irrespective of permissions, leading to potential EACCES errors during memory allocation. Fix this by not using a mountpoint if we do not have read/write permissions on it.
Signed-off-by: Jake Freeland <[email protected]> --- lib/eal/linux/eal_hugepage_info.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/lib/eal/linux/eal_hugepage_info.c b/lib/eal/linux/eal_hugepage_info.c index d47a19c56a..350c7d8cf6 100644 --- a/lib/eal/linux/eal_hugepage_info.c +++ b/lib/eal/linux/eal_hugepage_info.c @@ -260,6 +260,13 @@ get_hugepage_dir(uint64_t hugepage_sz, char *hugedir, int len) continue; } + if (access(splitstr[MOUNTPT], R_OK | W_OK) < 0) { + EAL_LOG(NOTICE, + "Skipping hugepage directory '%s': missing R/W permissions" + splitstr[MOUNTPT]); + continue; + } + /* * If no --huge-dir option has been given, we're done. */ -- 2.51.0
