On 08/09/2010 11:46 AM, Michael Roth wrote:
2) exec.c:file_ram_alloc() assumes you're allocating off a hugetlbfs and makes some system calls to get the block/hugepage size. A quick hack might be to comment out the following in exec.c:gethugepagesize(): if (fs.f_type != HUGETLBFS_MAGIC) fprintf(stderr, "Warning: path not on HugeTLBFS: %s\n", path); You may also want to replace the mkstemp() with a mkostemp() and set O_SYNC on the file But beyond hacks, I think generalizing -mempath might have some other useful applications (using it as a way to expose tmpfs-backed/numactl'd files as numa nodes to guests came up in an earlier discussion, and memory compression via zram/compcache is another).
Actually I guess 2) isn't really an issue, thought was an error path but I was mistaken.
-Mike
