On Thu 28-03-13 11:42:37, Naoya Horiguchi wrote: > Currently we fail to include any data on hugepages into coredump, > because VM_DONTDUMP is set on hugetlbfs's vma. This behavior was recently > introduced by commit 314e51b98 "mm: kill vma flag VM_RESERVED and > mm->reserved_vm counter". This looks to me a serious regression, > so let's fix it. > > Signed-off-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx> > Cc: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxx> Acked-by: Michal Hocko <mhocko@xxxxxxx> > --- > fs/hugetlbfs/inode.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git v3.9-rc3.orig/fs/hugetlbfs/inode.c v3.9-rc3/fs/hugetlbfs/inode.c > index 84e3d85..523464e 100644 > --- v3.9-rc3.orig/fs/hugetlbfs/inode.c > +++ v3.9-rc3/fs/hugetlbfs/inode.c > @@ -110,7 +110,7 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma) > * way when do_mmap_pgoff unwinds (may be important on powerpc > * and ia64). > */ > - vma->vm_flags |= VM_HUGETLB | VM_DONTEXPAND | VM_DONTDUMP; > + vma->vm_flags |= VM_HUGETLB | VM_DONTEXPAND; > vma->vm_ops = &hugetlb_vm_ops; > > if (vma->vm_pgoff & (~huge_page_mask(h) >> PAGE_SHIFT)) > -- > 1.7.11.7 > > -- > To unsubscribe, send a message with 'unsubscribe linux-mm' in > the body to majordomo@xxxxxxxxx. For more info on Linux MM, > see: http://www.linux-mm.org/ . > Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a> -- Michal Hocko SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>