On Sun, Oct 20, 2024 at 12:09:58PM -0700, Linus Torvalds wrote: > On Sun, 20 Oct 2024 at 12:09, Linus Torvalds > <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote: > > > > How about you limit the amount of memory you use in the first place instead? > > .. and to clarify: we're not making other parts of the kernel less > robust because *you* are doing something stupid and odd. Except, vmalloc() already behaves this way - so it seems to me you already have. I've already added a stupid workaround to the darray code to switch to calling vmalloc() directly, when necessary; this patch was a courtesy because if bcachefs is hitting this limit no doubt other things will be soon as well.