Hi Bart, On Fri, Mar 20, 2020 at 03:24:13PM -0700, Bart Van Assche wrote: > Add a test that triggers the code touched by commit d0930bb8f46b ("blk-mq: > Fix a recently introduced regression in blk_mq_realloc_hw_ctxs()"). This > test only runs if a recently added fault injection feature is available, > namely commit 596444e75705 ("null_blk: Add support for init_hctx() fault > injection"). [...] > +test() { > + local i sq=/sys/kernel/config/nullb/nullb0/submit_queues > + > + : "${TIMEOUT:=30}" > + if ! _init_null_blk nr_devices=0 queue_mode=2 "init_hctx=$(nproc),100,0,0"; then Doesn't make the $(nproc) the test subtil depending on the execution environment? Thanks, Daniel