On Mon, Mar 16, 2026 at 03:08:44PM -0600, Alan Somers wrote: > I once saw a similar bug. In my case I had a process that mmap()ed > some very large files on fusefs, consuming lots of inactive pages. > And when the system comes under memory pressure, it asks ARC to evict > first. So the ARC would end up shrinking down to arc_min every time. > In my case, the solution was to set vfs.fusefs.data_cache_mode=0 . I > suspect that similar bugs could be possible with UFS or tmpfs, if they > have giant files that are mmaped().
What are 'similar bugs with UFS or tmpfs'? Can you please be more specific, what is the erronous behavior?
