On 16/11/11 18:22, Roger Tsang wrote:
> The latest CVS check-in fixes a potential corruption at CFS server due
> to recursion. The bug was CFS inherited the backing device info of
> the backing file system. The Linux VM is re-entrant at
> balance_dirty_pages() and can call CFS recursively when the backing
> device info are the same on both file systems.
> CFS -> VM -> PFS -> VM -> CFS -> VM -> PFS ...
> The Linux VM may not call this far down and may not traverse file
> systems exactly as shown but if this happens you may get stack
> overflow, etc.
Does this mean OpenSSI might work with 4K stacks now?