On 01/13/2014 10:46 AM, Josef Bacik wrote:
> We were hitting a weird bug with our cgroup stuff because shmem uses on stack
> vmas. These aren't properly init'ed so we'd have garbage in vma->mm and bad
> things would happen. Fix this by just init'ing to empty structs. Thanks,
...
> static struct page *shmem_swapin(swp_entry_t swap, gfp_t gfp,
> struct shmem_inode_info *info, pgoff_t index)
> {
> - struct vm_area_struct pvma;
> + struct vm_area_struct pvma = {};
What does that code do if it needs an mm and doesn't find one?
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