Hi all: I hope this is the right place to ask about a potential bug in bounce.c. So on line 329 we assign the result of `mempool_alloc` to `to->bv_page` but we never check if `to->bv_page` is a valid pointer, also given that this variable is dereferenced in inc_zone_page_state. I wonder if we should add something like `if (to->bv_page == null)` here? 329: to->bv_page = mempool_alloc(pool, q->bounce_gfp); 330: inc_zone_page_state(to->bv_page, NR_BOUNCE); Best, Ziyang
