From: Vincent Fu <vincent.fu@xxxxxxx> When a random map is enabled, cover only the current zone when run with zonemode=strided. This ensures that when we reach the end of the zone we wrap around back into the current zone instead of accessing blocks outside of the zone. In addition, when an LFSR is used, constrain the blocks generated to the current zone. Previously, the LFSR random_generator would ignore the strided zonemode setting. Fixes: https://github.com/axboe/fio/issues/809 --- filesetup.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/filesetup.c b/filesetup.c index a439b6d6..1d3094c1 100644 --- a/filesetup.c +++ b/filesetup.c @@ -1338,6 +1338,9 @@ bool init_random_map(struct thread_data *td) for_each_file(td, f, i) { uint64_t fsize = min(f->real_file_size, f->io_size); + if (td->o.zone_mode == ZONE_MODE_STRIDED) + fsize = td->o.zone_range; + blocks = fsize / (unsigned long long) td->o.rw_min_bs; if (check_rand_gen_limits(td, f, blocks)) -- 2.17.1
